Bathyscaphe(Under water vehicle)

navigable diving vessel developed by the Swiss educator and scientist Auguste Piccard (with assistance in later years from his son Jacques), designed to reach great depths in the ocean.

The first bathyscaphe, the FNRS 2, built in Belgium between 1946 and 1948, was damaged during 1948 trials in the Cape Verde Islands. Substantially rebuilt and greatly improved, the vessel was renamed FNRS 3 and carried out a series of descents under excellent conditions, including one of 4,000 m (13,000 feet) into the Atlantic off Dakar, Senegal, on Feb. 15, 1954. A second improved bathyscaphe, the Trieste, was launched on Aug. 1, 1953, and dived to 3,150 m (10,300 feet) in the same year. In 1958 the Trieste was acquired by the United States Navy, taken to California, and equipped with a new cabin designed to enable it to reach the seabed of the great oceanic trenches. Several successive descents were made into the Pacific by Jacques Piccard, and on Jan. 23, 1960, Piccard, accompanied by Lieutenant Don Walsh of the U.S. Navy, dived to a record 10,916 m (35,810 feet) in the Pacific's Mariana Trench.
The bathyscaphe consists of two main components: a steel cabin, heavier than water and resistant to sea pressure, to accommodate the observers; and a light container called a float, filled with gasoline, which, being lighter than water, provides the necessary lifting power. The cabin and float are closely linked. On the surface, one or more ballast tanks filled with air provide enough lift to keep the bathyscaphe afloat. When the ballast tank valves are opened, air escapes and is replaced by water, making the whole device heavy enough to start its descent. The gasoline is in direct contact with the sea water and so is compressed at a rate almost exactly in proportion to the prevailing depth. Thus, the bathyscaphe gradually loses buoyancy as it descends, and the speed of its descent tends to increase rapidly. To slow down or to begin the reascent, the pilot releases ballast that consists essentially of iron shot stored in silos and held in place by electromagnets.

Submarine

Introduction

any naval vessel that is capable of propelling itself beneath the water as well as on the water's surface. This is a unique capability among warships, and submarines are quite different in design and appearance from surface ships.

Submarines first became a major factor in naval warfare during World War I (1914–18), when Germany employed them to destroy surface merchant vessels. In such attacks submarines used their primary weapon, a self-propelled underwater missile known as a torpedo. Submarines played a similar role on a larger scale in World War II (1939–45), in both the Atlantic (by Germany) and the Pacific (by the United States). In the 1960s the nuclear-powered submarine, capable of remaining underwater for months at a time and of firing long-range nuclear missiles without surfacing, became an important strategic weapon platform. Armed with torpedoes as well as antiship and antisubmarine missiles, the nuclear attack submarine has also become a key element of naval warfare.
Following is a history of the development of submarines from the 17th century to the present. For a history of other warships, see naval ship. For the weaponry of modern attack and strategic submarines, see rocket and missile system.

 

Early hand-powered submersibles

The first serious discussion of a “submarine”—a craft designed to be navigated underwater—appeared in 1578 from the pen of William Bourne, a British mathematician and writer on naval subjects. Bourne proposed a completely enclosed boat that could be submerged and rowed underwater. It consisted of a wooden frame covered with waterproof leather; it was to be submerged by reducing its volume by contracting the sides through the use of hand vises. Bourne did not actually construct his boat, and Cornelis Drebbel (or Cornelius van Drebel), a Dutch inventor, is usually credited with building the first submarine. Between 1620 and 1624 he successfully maneuvered his craft at depths of from 12 to 15 feet (four to five metres) beneath the surface during repeated trials in the Thames River, in England. King James I is said to have gone aboard the craft for a short ride. Drebbel's submarine resembled that proposed by Bourne in that its outer hull consisted of greased leather over a wooden frame; oars extended through the sides and, sealed with tight-fitting leather flaps, provided a means of propulsion both on the surface and underwater. Drebbel's first craft was followed by two larger ones built on the same principle.
A number of submarine boats were conceived in the early years of the 18th century. By 1727 no fewer than 14 types had been patented in England alone. In 1747 an unidentified inventor proposed an ingenious method of submerging and returning to the surface: his submarine design had goatskin bags attached to the hull with each skin connected to an aperture in the bottom of the craft. He planned to submerge the vessel by filling the skins with water and to surface by forcing the water out of the skins with a “twisting rod.” This arrangement was a forerunner of the modern submarine ballast tank.

 

First use in war

 

• Bushnell's submarine torpedo boat, 1776. Drawing of a cutaway view made by Lieutenant Commander …

The submarine was first used as an offensive weapon in naval warfare during the American Revolution (1775–83). The Turtle, a one-man craft invented by David Bushnell, a student at Yale, was built of wood in the shape of a walnut standing on end (see photograph). Submerged, the craft was powered by propellers cranked by the operator. The plan was to have the Turtle make an underwater approach to a British warship, attach a charge of gunpowder to the ship's hull by a screw device operated from within the craft, and leave before the charge was exploded by a time fuse. In the actual attack, however, the Turtle was unable to force the screw through the copper sheathing on the warship's hull.Robert Fulton, famed U.S. inventor and artist, experimented with submarines several years before his steamboat Clermont steamed up the Hudson River. In 1800, while in France, Fulton built the submarine Nautilus under a grant from Napoleon Bonaparte. Completed in May 1801, this craft was made of copper sheets over iron ribs. A collapsing mast and sail were provided for surface propulsion, and a hand-turned propeller drove the boat when submerged. A precursor of a conning tower fitted with a glass-covered porthole permitted observation from within the craft. The Nautilus submerged by taking water into ballast tanks, and a horizontal “rudder”—a forerunner of the diving plane—helped keep the craft at the desired depth. The submarine contained enough air to keep four men alive and two candles burning for three hours underwater; later a tank of compressed air was added.
The Nautilus was intended to attach an explosive charge to the hull of an enemy ship in much the same manner as the Turtle. Fulton experimentally sank an old schooner moored at Brest but, setting out to destroy British warships, was unable to overtake those he sighted. France's interest in Fulton's submarine waned, and he left for England, offering his invention to his former enemy. In 1805 the Nautilus sank the brig Dorothy in a test, but the Royal Navy would not back his efforts. Fulton then came to the United States and succeeded in obtaining congressional backing for a more ambitious undersea craft. This new submarine was to carry 100 men and be powered by a steam engine. Fulton died before the craft was actually finished, however, and the submarine, named Mute, was left to rot, eventually sinking at its moorings.
During the War of 1812 between the United States and England, a copy of the Turtle was built, which attacked HMS Ramillies at anchor off New London, Conn. This time the craft's operator succeeded in boring a hole in the ship's copper sheathing, but the screw broke loose as the explosive was being attached to the ship's hull.

Coach

four-wheeled, horse-drawn carriage, popularly thought to have originated in Hungary in the 15th century. The word coach often is used interchangeably with “carriage,” but a coach is generally either a public carriage—such as a stagecoach, Concord coach, mail coach, or the modern railway coach—or an opulent carriage of state. A coach has a suspended, enclosed body, with a roof forming part of its framing, and two inside transverse seats facing one another, for carrying four or six passengers.

Various authorities date the introduction of the coach to England at 1555–80. In Germany coaches were numerous in the 16th century, and the Berlin coach, which was characterized by its two-perch running gear and thoroughbrace suspension, was introduced in about 1660. In Paris, in 1645, there were fiacre coaches or cabs for hire, although there had been private carriages in Paris as early as 1550. In 16th-century England, poets derogated coaches as ostentatious vehicles employed by wantons and rakes, and the Thames watermen (boatmen), whose living suffered, also complained bitterly of them.
In colonial America, the few coaches of the late 17th century were used primarily by governors and only in such places as Boston and New York City, which had roads. Bostonians later attacked coaches as works of the devil, thereby unwittingly echoing the edict of the German noble, Julius of Brunswick, who, in an edict of 1588, had forbidden his vassals to ride in coaches.

Snowmoblie

a one- or two-passenger motorized vehicle with one or two skis in front and an engine-driven single or double continuous track to propel it. Snowmobiles almost all follow the basic design of skis, fuel tank, engine, and seating for driver. They are steered by handlebars that control the skis and by shifting the position of the driver. Acceleration and braking are controlled by hand-squeeze throttle and brake controls on the handlebars.

In the 1920s a prototype snowmobile was a sled steered by skis and powered by an airplane propeller. Early vehicles, because of the weight of the engines available at that time, had to be large to spread the weight over the snow. In the early 1950s the advent of smaller, lighter weight engines enabled Joseph-Armand Bombardier, a Canadian, to develop a small snowmobile. In 1959 a commercially successful one- or two-passenger snowmobile was manufactured and marketed. The snowmobile soon became a popular recreational vehicle in North America.
The machines have gained wide acceptance and popularity among outdoorsmen for winter fishing or hunting purposes. Snowmobile safaris are made into previously inaccessible areas of national and state parks, although by the 1980s authorities sought to restrict such activity because of noise and harm to plant and animal wildlife. Racing snow machines became a popular winter sport in North America and Europe. By the mid-1970s professional racing was established. Speeds of more than 160 km/hr (100 mph) have been achieved.
While approximately 80 percent of annual snowmobile use is recreational in nature, the machines are also used for utilitarian purposes, such as winter rescue work, checking forest land, repairing power and telephone lines, and providing winter transportation for professional conservationists. Royal Canadian Mounted Police and Eskimos found them useful for work done previously by dogsled. Laplanders sometimes use the machines for herding reindeer. They have been tested for possible military use.
By 1999 there were more than four million snowmobilers in North America alone. Organized snowmobile clubs and associations in the United States and Canada have been instrumental in establishing a network of more than 230,000 miles of marked and groomed trails that traverse both public and privately held lands. Accidents and damage resulting from unskilled and reckless use of the machines, together with their effect of frightening game animals, has prompted many calls for increased governmental control of snowmobile operation.

 

Troika(Vehicle)

(Russian: “three”), any vehicle drawn by three horses abreast, usually a sleigh with runners but also a wheeled carriage. The three-horse team is also known as a unicorn team.

In Hungary and in Russia the troika, drawn by three horses and driven by an elegantly clad coachman, was once the ultimate status symbol. All three horses were lightly harnessed, with the leader, or middle one, between the shafts of the vehicle at a trot, while the two wheelers, or outside horses (pulling at slightly divergent angles in an array shaped like a fan), galloped—one furiously, the other coquettishly. Great care was taken in the harnessing of the animals to see that each performed at the desired gait. The nobility thus made great and colourful ceremonial displays.

Taxicab

chauffeur-driven automobile available for hire to carry passengers between any two points within a city or its suburbs for a fare determined by a meter or zone system or a flat rate. The taxicab is named after the taximeter, an instrument invented by Wilhelm Bruhn in 1891 that automatically recorded the distance traveled and/or the time consumed, thus enabling the fare to be accurately measured. The term cab derives from the cabriolet, a two-wheeled, one-horse carriage often let out for hire.

The development of modern taxicabs closely parallels that of automobiles. The first motorized taxicabs were electric-powered vehicles that began appearing on the streets of European and American cities in the late 1890s. Internal combustion-powered taxicabs equipped with taximeters first appeared around 1907 and have dominated taxi travel ever since. Most modern taxis are four-door passenger cars that are especially fitted for taxicab service and provided with modifications designed to withstand the more severe service requirements of taxi operation. Such modifications include reinforced auto-body frames, heavier springs and shock absorbers in the suspension system, and more reliable engine charging. In some cities, such as London, taxicab design must meet legally approved specifications.
Taxicab firms may be organized in any of three ways. They may have regular employees who drive cabs owned by the company; they may use lessees, or independent contractors, who lease cabs from a company and pay a regular fee for the use of the vehicle; or they may consist of owner-drivers, who drive vehicles which they themselves own.

 

Model T(automobile)

automobile built by the Ford Motor Company from 1908 until 1927. Conceived by Henry Ford as practical, affordable transportation for the common man, it quickly became prized for its low cost, durability, versatility, and ease of maintenance. More than 15 million Model Ts were built in Detroit and Highland Park, Mich. (The automobile was also assembled at a Ford plant in Manchester, Eng., and at plants in continental Europe.) Assembly-line production allowed the price of the touring car version to be lowered from $850 in 1908 to less than $300 in 1925. At such prices the Model T at times comprised as much as 40 percent of all cars sold in the United States. Even before it lost favour to larger, more powerful, and more luxurious cars, the Model T, known popularly as the “Tin Lizzie” or the “flivver,” had become an American folkloric symbol, essentially realizing Ford's goal to “democratize the automobile.”

 

 

• Mass production of the Ford Model T. By bringing parts to the assembly line on a conveyor …

The Model T was offered in several body styles, including a five-seat touring car, a two-seat runabout, and a seven-seat town car. All bodies were mounted on a uniform 100-inch-wheelbase chassis. A choice of colours was originally available, but from 1913 to 1925 the car was mass-produced in only one colour—black. The engine was simple and efficient, with all four cylinders cast in a single block and the cylinder head detachable for easy access and repair. The engine generated 20 horsepower and propelled the car to modest top speeds of 40–45 miles per hour (65–70 km/h). In most models the engine was started by a hand crank, which activated a magneto connected to the flywheel, but after 1920 some models were equipped with battery-powered starters. The transmission, consisting of two forward gears and one reverse, was of the planetary type, controlled by foot pedals rather than the more common hand lever used in sliding-gear transmissions. Spark and throttle were controlled by a hand lever on the steering column. The 10-gallon fuel tank was located under the front seat. Because gasoline was fed to the engine only by gravity, and also because the reverse gear offered more power than the forward gears, the Model T frequently had to be driven up a steep hill backward. Such deficiencies, along with its homely appearance, less-than-comfortable ride at top speeds, and incessant rattling, made the Model T the butt of much affectionate humour in innumerable jokes, songs, poems, and stories.

 

Helocopter

Introduction

aircraft with one or more power-driven horizontal propellers or rotors that enable it to take off and land vertically, to move in any direction, or to remain stationary in the air. Other vertical-flight craft include autogiros, convertiplanes, and V/STOL aircraft of a number of configurations.

The idea of taking off vertically, making the transition to horizontal flight to the destination, and landing vertically has been for centuries the dream of inventors. It is the most logical form of flight, dispensing as it does with large landing fields located far from city centres and the inevitable intervening modes of travel—automobile, subway, bus—that flight in conventional aircraft usually requires. But vertical flight is also the most demanding challenge in flying, requiring more sophistication in structure, power, and control than conventional fixed-wing aircraft. These difficulties, solved over time by determined engineers and inventors, made the progress of vertical flight seem slow compared to that of conventional flight, for the first useful helicopters did not appear until the early 1940s.

 

History

One important characteristic of the history of vertical flight is the pervasive human interest in the subject; inventors in many countries took up the challenge over the years, achieving varying degrees of success. The history of vertical flight began at least as early as about AD 400; there are historical references to a Chinese kite that used a rotary wing as a source of lift. Toys using the principle of the helicopter—a rotary blade turned by the pull of a string—were known during the Middle Ages. During the latter part of the 15th century, Leonardo da Vinci made drawings of a helicopter that used a spiral airscrew to obtain lift. A toy helicopter, using rotors made out of the feathers of birds, was presented to the French Academy of Science in 1784 by two artisans, Launoy and Bienvenu; this toy forecast a more successful model created in 1870 by Alphonse Pénaud in France.
The first scientific exposition of the principles that ultimately led to the successful helicopter came in 1843 from Sir George Cayley, who is also regarded by many as the father of fixed-wing flight. From that point on, a veritable gene pool of helicopter ideas was spawned by numerous inventors, almost entirely in model or sketch form. Many were technical dead ends, but others contributed a portion of the ultimate solution. In 1907 there were two significant steps forward. On September 29, the Breguet brothers, Louis and Jacques, under the guidance of the physiologist and aviation pioneer Charles Richet made a short flight in their Gyroplane No. 1, powered by a 45-horsepower engine. The Gyroplane had a spiderweb-like frame and four sets of rotors. The piloted aircraft lifted from the ground to a height of about two feet, but it was tethered and not under any control. Breguet went on to become a famous name in French aviation, and in time Louis returned to successful work in helicopters. Later, in November, their countryman Paul Cornu, who was a bicycle maker like the Wright brothers, attained a free flight of about 20 seconds' duration, reaching a height of one foot in a twin-rotor craft powered by a 24-horsepower engine. Another man who, like the Breguets, would flirt with the helicopter, go on to make his name with fixed-wing aircraft, and then later return to the challenge of vertical flight, was Igor Sikorsky, who made some unsuccessful experiments at about the same time.
The next 25 years were characterized by two main trends in vertical flight. One was the wide spread of minor successes with helicopters; the second was the appearance and apparent success of the autogiro (also spelled autogyro).
The helicopter saw incremental success in many countries, and the following short review will highlight only those whose contributions were ultimately found in successfully developed helicopters. In 1912 the Danish inventor Jacob Ellehammer made short hops in a helicopter that featured contrarotating rotors and cyclic pitch control, the latter an important insight into the problem of control. On Dec. 18, 1922, a complex helicopter designed by George de Bothezat for the U.S. Army Air Force lifted off the ground for slightly less than two minutes, under minimum control. In France on May 4, 1924, Étienne Oehmichen established a distance record for helicopters by flying a circle of a kilometre's length.
In Spain in the previous year, on Jan. 9, 1923, Juan de la Cierva made the first successful flight of an autogiro. An autogiro operates on a different principle than a helicopter. Its rotor is not powered but obtains lift by its mechanical rotation as the autogiro moves forward through the air. It has the advantage of a relatively short takeoff and a near vertical descent, and the subsequent success of Cierva's autogiros and those of his competitors seemed to cast a pall on the future of helicopter development. Autogiros were rapidly improved and were manufactured in several countries, seeming to fill such a useful niche that they temporarily overshadowed the helicopter. Ironically, however, the technology of the rotor head and rotor blade developed for the autogiro contributed importantly to the development of the successful helicopter, which in time made the autogiro obsolete.
In 1936 Germany stepped to the forefront of helicopter development with the Focke Achgelis Fa 61, which had two three-bladed rotors mounted on outriggers and powered by a 160-horsepower radial engine. The Fa 61 had controllable cyclic pitch and set numerous records, including, in 1938, an altitude flight of 11,243 feet and a cross-country flight of 143 miles. In 1938 the German aviator Hanna Reitsch became the world's first female helicopter pilot by flying the Fa 61 inside the Deutschland-Halle in Berlin. It was both a technical and a propaganda triumph. Germany continued its helicopter development during World War II and was the first to place a helicopter, the Flettner Kolibri, into mass production.
In the United States, after many successes with commercial flying boats, Igor Sikorsky turned his attention to helicopters once again, and after a long period of development he made a successful series of test flights of his VS-300 in 1939–41. Essentially a test aircraft designed for easy and rapid modification, the VS-300 was small (weighing 1,092 pounds) and was powered by a 65-horsepower Lycoming engine. Yet it possessed the features that characterize most modern helicopters: a single main three-bladed rotor, with collective pitch, and a tail rotor. As successful as the VS-300 was, however, it also clearly showed the difficulties that all subsequent helicopters would experience in the development process. For many years, compared with conventional aircraft, helicopters were underpowered, difficult to control, and subject to much higher dynamic stresses that caused material and equipment failures. Yet the VS-300 led to a long line of Sikorsky helicopters, and it influenced their development in a number of countries, including France, England, Germany, and Japan.
After World War II the commercial use of helicopters developed rapidly in many roles, including fire fighting, police work, agricultural crop spraying, mosquito control, medical evacuation, and carrying mail and passengers.
The expanding market brought additional competitors into the field, each with different approaches to the problem of vertical flight. The Bell Aircraft Corporation, under the leadership of Arthur Young, began its long, distinguished history of vertical-flight aircraft with a series of prototypes that led to the Bell Model 47, one of the most significant helicopters of all time, incorporating an articulated, gyro-stabilized, two-blade rotor. Frank Piasecki created the Piasecki Helicopter Corporation; its designs featured a tandem-rotor concept. The use of twin tandem rotors enabled helicopters to grow to almost twice their previous size without the difficulty of creating very large rotor blades. In addition, the placement of the twin rotors provided a large centre of gravity range. The competition was international, with rapid progress made in the Soviet Union, the United Kingdom, France, Italy, and elsewhere.
To an even greater extent than fixed-wing aircraft, the development of the helicopter had been limited by engine power. Reciprocating engines were heavy, noisy, and less efficient at high altitude. The first application of jet-engine technology to the helicopter was accomplished in 1951 by the Kaman Aircraft Corporation's HTK-1, which had Kaman's patented aerodynamic servo-controlled rotors in the “synchropter” configuration (i.e., side-by-side rotors with intermeshing paths of blade travel).
In conventional aircraft the power of the jet engine was used primarily for increased speed. In the helicopter the thrust of the jet turbine had to be captured by a gearbox that would turn the rotor. The jet engine had many advantages for the helicopter—it was smaller, weighed less than a piston engine of comparable power, had far less vibration, and used less expensive fuel. The French SNCA-S.E. 3130 Alouette II made its first flight on March 12, 1955, powered by a Turbomeca Artouste II turbine engine. It rapidly became one of the most influential helicopters in the world and started a trend toward jet-powered helicopters everywhere.
There are now a vast number of helicopter types available on the market, ranging from small two-person private helicopters through large passenger-carrying types to work vehicles capable of carrying huge loads to remote places. All of them respond to the basic principles of flight, but, because of the unique nature of the helicopter's rotor and control systems, the techniques for flying them differ. There are other types of vertical-lift aircraft, whose controls and techniques are often a blend of the conventional aircraft and the helicopter. They form a small part of the total picture of flight but are of growing importance.

Ricksha(travel)

also spelled  Rickshaw,  also called  Jinrikisha, or Jinrickshaw 

 

• Ricksha, c. 1875; in the Museum of Carriages, Maidstone, Kent, Eng.

(Japanese: “human-powered vehicle”), two-wheeled vehicle with a doorless, chairlike body and a collapsible hood, that holds one or two passengers and is drawn by a man between two shafts. It was used widely in the Orient but was largely superseded by the pedicab (q.v.), a ricksha driven by bicycle.

The name of its inventor remains uncertain, but it was first used in Japan in the 19th century and is similar to the old French brouette. Many were built in the United States for export by the American carriage builder James H. Birch of Burlington, N.J.

Sedan(Road Vehicle)

also called  Sedan Chair,  

portable, enclosed chair mounted on horizontally placed parallel poles and carried by men or animals. In Italy, France, and England, in the 17th and 18th centuries, sedans became highly luxurious and were often elaborately carved and upholstered and painted with mythological scenes or heraldic devices. In England, in 1634, Sir Sanders Duncombe received a royal patent to be the sole supplier of rental, or hackney, sedans for 14 years, a reward for having imported the sedan chair, probably from Naples. Sedan chairs were welcomed in England as a relief from the swarm of coaches then clogging London streets.

In colonial America sedan chairs were used by the wealthy, mostly in New York City and Philadelphia. Benjamin Franklin still was using sedans in 1789.

Kite

Introduction

oldest known heavier-than-air craft designed to gain lift from the wind while being flown from the end of a flying line, or tether.

Over the millennia, kites have been used to ward off evil, deliver messages, represent the gods, raise banners, discover natural phenomena, propel craft, drop propaganda leaflets, catch fish, spy on enemies, send radio signals, measure the weather, photograph the Earth, and lift passengers skyward. Modern kites are flown mostly for pleasure and sport, in addition to being a folk form of artistic expression. The kite was the ancestral aircraft that launched manned flight.

 

History

Asia

Nearly 3,000 years ago the kite was first popularized, if not invented, in China, where materials ideal for kite building were readily available: silk fabric for sail material, fine, high-tensile-strength silk for flying line, and resilient bamboo for a strong, lightweight framework. The earliest known Chinese kites were flat (not bowed) and often rectangular. Later, tailless kites incorporated a stabilizing bowline. Kites were decorated with mythological motifs and legendary figures; some were fitted with strings and whistles to make musical sounds while flying.
After its appearance in China, the kite migrated to Korea, Japan, Myanmar (Burma), India, Arabia, and North Africa, then farther south into the Malay Peninsula, Indonesia, and the islands of Oceania as far east as Easter Island. Since kites made of leaves have been flown in Malaya and the South Seas from time immemorial, the kite could also have been invented independently in that region.
One ancient design, the fighter kite, became popular throughout Asia. Most variations, including the of India and Japan, are small, flat, roughly diamond-shaped kites made of paper, with a tapered bamboo spine and a balanced bow. Flown without tails that would hinder their agility, these highly maneuverable flat kites have a length of cutting line coated with an abrasive attached to the bridle (see below, Aerodynamics), which is then tied to a light cotton flying line. Although the rules of kite fighting varied from country to country, the basic combat was to maneuver the swift kite in such a way as to cut the opponent's flying line.

 

Europe and the West

Kite flying began much later in Europe than in Asia. While unambiguous drawings of kites first appeared in print in Holland and England in the 17th century, pennon-type kites that evolved from military banners dating back to Roman times and earlier were flown during the Middle Ages.
During the 18th century tailless bowed kites were still unknown in Europe. Flying flat arch- or pear-shaped kites with tails had become a popular pastime, mostly among children. The first recorded scientific application of a kite took place in 1749 when Alexander Wilson of Scotland used a kite train (two or more kites flown from a common line) as a meteorologic device for measuring temperature variations at different altitudes.
Three years later, in June 1752, in what is the most famous of kite experiments, the American inventor and statesman Benjamin Franklin, with the aid of his son, lofted a flat kite fitted with a pointed wire and silk sail during a thunderstorm. Somehow both father and son avoided electrocution as a metal key attached to the flying line became electrified. Franklin proved that lightning was the natural phenomenon called electricity, not the wrath of the gods. One immediate and practical outcome of the experiment was Franklin's invention of the lightning rod.

Rubik's Cube

toy, popular in the 1980s, that was designed by Hungarian inventor Erno Rubik. Rubik's Cube consists of 26 small cubes that rotate on a central axis; nine coloured cube faces, in three rows of three each, form each side of the cube. When the cube is twisted out of its original arrangement, the player must then return it to the original configuration—one among 43 quintillion possible ones.

Jigsaw puzzle

any set of varied, irregularly shaped pieces that, when properly assembled, form a picture or map. The puzzle is so named because the picture, originally attached to wood and later to paperboard, was cut into its pieces with a jigsaw, which cuts intricate lines and curves. Jigsaw puzzles may be very complicated vis-à-vis the number of pieces and the number of different cuts and thus take many hours to complete.
The puzzles originated as educational devices to teach geography (dissected maps) in 18th-century England. Dissected pictures followed, covering such subjects as history, alphabets, botany, and zoology. The use of popular pictures began in the 1860s and '70s, in both Great Britain and the United States. The puzzles became extremely popular in the early 1900s and had a revival in the Great Depression of the 1930s as an inexpensive, reusable amusement. Another revival began after World War II, and jigsaw puzzles have remained a popular entertainment since then.

Crossword puzzle

popular form of word puzzle. A crossword puzzle consists of a diagram, usually rectangular, divided into blank (white) and cancelled (black, shaded, or crosshatched) squares. This diagram is accompanied by two lists of numbered definitions or clues, one for the horizontal and the other for the vertical words, the numbers corresponding to identical numbers on the diagram. Into each of the blank squares of the diagram a certain letter of the alphabet is to be inserted, forming the words fitting the numbered definitions or clues. The words cross each other, or interlock, which gives the puzzle its name.

The first crosswords appeared in England during the 19th century. They were of an elementary kind apparently derived from the word square, a group of words arranged so the letters read alike vertically and horizontally, and printed in children's puzzle books and various periodicals. In the United States, however, the puzzle developed into a serious adult pastime. The first modern crossword puzzle was published on Dec. 21, 1913, in the New York World's Sunday supplement, Fun. It appeared as only one of a varied group of mental exercises, but it struck the fancy of the public. By 1923, crosswords were being published in most of the leading American newspapers, and the craze soon reached England. Soon almost all daily newspapers in the United States and Great Britain had a crossword feature of some kind. The Sunday Times of London ran perhaps the best-known puzzle.
Crosswords in various forms are found in almost every country and language. Scholars have even gone so far as to make them for Latin. Advocates claim the puzzles are both a pastime and an interesting means of improving the vocabulary. Though the majority of puzzles have the form of symmetrical patterns of shaded or blacked-out squares within a rectangle, there are many variations. These include: (1) an asymmetrical scattering of squares; (2) a plain diagram with no squares canceled and the ends of words marked simply by a thick line; (3) pictorial designs, either in outline containing the diagram or in line inside the diagram, or a combination of both; and (4) diagramless puzzles, with no squares cancelled and no word ends marked.
The general type of crossword has also been subject to variation. Some puzzles employ abstruse definitions, puns, and anagrams. A number of words in one puzzle may bear upon some announced theme, such as music, sports, literature, or geography. Many of the puzzles in this category are quite difficult. Again, some clues will be omitted altogether but a direction given that the words thus neglected belong to a particular class: jewels, for example, or words in a quotation. Sometimes every word will have some given prefix, suffix, or part in common, and only the rest of the word will actually fill the spaces in the diagram: (rat)ion, (rat)chet, etc.; unc(tion), cap(tion), etc.; qu(it)e, cr(it)ic, etc. Lester Markel, Sunday editor of The New York Times, insisted that puzzles appearing in that paper contain words linked to the news. Harold T. Bers, an advertising writer and puzzle constructor, devised the internal-clue crossword, in which the theme of the puzzle emerges gradually as successive definitions are solved: filling in “pussyfoot,” “caterwaul,” “kittenish”—together with an overall title “catalog”—would reveal the feline theme.

 

Jazz (Dance)

ny dance to jazz accompaniments, composed of a profusion of forms. Jazz dance paralleled the birth and spread of jazz itself from roots in black American society and was popularized in ballrooms by the big bands of the swing era (1930s and '40s). It radically altered the style of American and European stage and social dance in the 20th century. The term is sometimes used more narrowly to describe (1) popular stage dance (except tap dance) and (2) jazz-derived or jazz-influenced forms of modern dance. It excludes social dances lacking jazz accompaniment—e.g., the rumba and other Latin-American dances.
Jazz dance developed from both 19th- and 20th-century stage dance and traditional black social dances and their white ballroom offshoots. On the stage, minstrel show performers in the 19th century developed tap dancing from a combination of Irish jigging, English clog dancing, and African rhythmic stamping. Tap dance and such social dances as the cakewalk and shuffle became popular vaudeville acts and appeared in Broadway revues and musical comedies as these replaced vaudeville early in the 20th century. In addition, comedy, specialty, and character dances to jazz rhythms became standard stage routines. By the 1940s elements of jazz dance had appeared in modern dance and in motion picture choreography.
Although the stage popularized certain social dances, many others were transmitted mainly in social gatherings. The dances that gave rise to social forms of jazz dance developed from rural slave dances. In both early dances and 20th-century jazz dances, there is a noticeable continuity of dance elements and motions. The eagle rock and the slow drag (late 19th century) as well as the Charleston and the jitterbug have elements in common with certain Caribbean and African dances. In addition, the slow drag contributed to the fish of the 1950s; the ring shout, which survived from the 18th into the 20th century, in isolated areas, influenced the cakewalk.
About 1900 the cakewalk, popularized through stage shows, became a craze in European and American ballrooms. In its wake appeared other social dances such as the Charleston (1920s), the jitterbug (1930s and '40s), the twist (1960s), and disco dancing (1970s). Some, like the fox-trot, borrowed European dance steps and fitted them to jazz rhythms. The growth of radio, television, and recording, which popularized black music among wide audiences, greatly aided the diffusion of these dances. Fusing ballet with jazz has led in recent years to the formation of such troupes as Canada's Les Ballets Jazz.

 

Additional Reading

Twist(Dance)

igorous dance that developed in the early 1960s in the United States and became internationally popular after its adoption in fashionable circles. The twist's characteristic hip, arm, and leg movements have been described as “drying the buttocks with an imaginary towel while grinding out an imaginary cigarette with one foot.” Partners synchronized body positions and gyrations but never touched. Dances that evolved from the twist—for example, the frug and the watusi—were invariably performed by shaking the pelvis. In these dances partners only sometimes coordinated their movements. Among the suggested precursors of the twist are included the shimmy and the black bottom, and a song that was popular before 1910 included the lines “Mama, mama, where is sis? / Down on the levee doin' the double twis'.”

Modern Dance

theatrical dance that began to develop in the United States and Europe late in the 19th century, receiving its nomenclature and a widespread success in the 20th. It evolved as a protest against both the balletic and the interpretive dance traditions of the time.
The forerunners of modern dance in Europe include Émile Jaques-Dalcroze, proponent of the eurythmics system of musical instruction, and Rudolf Laban, who analyzed and systematized forms of human motion. A number of the modern dance movement's precursors appeared in the work of American women. Loie Fuller, an American actress turned dancer, first gave the free dance artistic status in the United States. Her use of theatrical lighting and transparent lengths of China-silk fabrics at once won her the acclaim of artists as well as general audiences. She preceded other modern dancers in rebelling against any formal technique, in establishing a company, and in making films.
Dance was only part of Fuller's theatrical effect; for another American dancer, Isadora Duncan, it was the prime resource. Duncan brought a vocabulary of basic movements to heroic and expressive standards. She performed in thin, flowing dresses that left arms and legs bare, bringing a scale to her dancing that had immense theatrical projection. Her revelation of the power of simple movement made an impression on dance that lasted far beyond her death.
Formal teaching of modern dance was more successfully achieved by Ruth St. Denis and Ted Shawn. St. Denis based much of her work on Eastern dance styles and brought an exotic glamour to her company. Shawn was the first man to join the group, becoming her partner and soon her husband. Nonballetic dance was formally established in 1915, when they founded the Denishawn school.
From the ranks of Denishawn members, two women emerged who brought a new seriousness of style and initiated modern dance proper. Doris Humphrey emphasized craftsmanship and structure in choreography, also developing the use of groupings and complexity in ensembles. Martha Graham began to open up fresh elements of emotional expression in dance. Humphrey's dance technique was based on the principle of fall and recovery, Graham's on that of contraction and release. At the same time in Germany, Mary Wigman, Hanya Holm, and others were also establishing comparably formal and expressionist styles. As in Duncan's dancing, the torso and pelvis were employed as the centres of dance movement. Horizontal movement close to the floor became as integral to modern dance as the upright stance is to ballet. In the tense, often intentionally ugly, bent limbs and flat feet of the dancers, modern dance conveyed certain emotions that ballet at that time eschewed. Furthermore, modern dance dealt with immediate and contemporary concerns in contrast to the formal, classical, and often narrative aspects of ballet. It achieved a new expressive intensity and directness.
A revolt in turn against Graham's expressionism was led by Merce Cunningham, who rejected psychological and emotional elements in choreography. Cunningham's dance technique began to incorporate as much ballet as it did modern dance, while his choreographic methods admitted chance as an element of composition and organization. Also in the 1950s Alwin Nikolais began to develop productions in which dance was immersed in effects of lighting, design, and sound, while Paul Taylor achieved a generally vigorous and rhythmic style with great precision and theatrical projection in several works responding to classical scores.
Cunningham was a prime influence on the development of postmodern dance in the 1960s and later. Based especially in New York City, a large number of new dancers and choreographers began to abandon virtuoso technique, to perform in nontheatre spaces, and to incorporate repetition, improvisation, minimalism, speech or singing, and mixed-media effects, including film. Out of this context emerged artists such as Twyla Tharp, who gradually reintroduced academic virtuosity, rhythm, musicality, and dramatic narrative to her dance style, which was based in ballet and yet related to the improvisatory forms of popular social dance. (See also Tharp's Sidebar: On Technology and Dance.)
Since its founding, modern dance has been redefined many times. Though it clearly is not ballet by any traditional definition, it often incorporates balletic movement; and though it may also refer to any number of additional dance elements (those of folk dancing or ethnic, religious, or social dancing, for example), it may also examine one simple aspect of movement. As modern dance changes in the concepts and practices of new generations of choreographers, the meaning of the term modern dance grows more ambiguous.

waltz(Dance)

highly popular ballroom dance evolved from the Ländler in the 18th century. Characterized by a step, slide, and step in ³/₄ time, the waltz, with its turning, embracing couples, at first shocked polite society. It became the ballroom dance par excellence of the 19th century, however, and tenaciously maintained its popularity in the 20th. Its variations include the rapid, whirling Viennese waltz and the gliding, dipping Boston. Composers of famous waltzes include Frédéric Chopin, Pyotr Ilyich Tchaikovsky, and Johann Strauss and his sons, especially Johann Strauss the Younger, who was known as “the Waltz King.”

Tango(Dance)

ballroom dance, musical style, and song. The tango evolved about 1880 in dance halls and perhaps brothels in the lower-class districts of Buenos Aires, where the Spanish tango, a light-spirited variety of flamenco, merged with the milonga, a fast, sensual, and disreputable Argentine dance; it also shows possible influences from the Cuban habanera. In the early 1900s the tango became socially acceptable and by 1915 was a craze in fashionable European circles. The first tango music by known composers was published in 1910.

The early tangos were spirited and lively, but by 1920 the music and lyrics had become intensely melancholy. The tango step likewise evolved from early exuberance to a smoother ballroom step, and the prevailing duple metre (²/₄) into ⁴/₄, ⁴/₈, or other tempo.
The list of names of those most strongly associated with tango is long, but among the best-known are Juan d'Arienzo, Anibal Troilo, Osvaldo Pugliese, Carlos Di Sarli, Francisco Canaro, Astor Piazzolla, and Carlos Gardel.

New york city

city and port located at the mouth of the Hudson River, southeastern New York state, northeastern U.S. It is the largest and most influential American metropolis, encompassing Manhattan and Staten islands, the western sections of Long Island, and a small portion of the New York state mainland to the north of Manhattan. New York City is in reality a collection of many neighbourhoods scattered among the city's five boroughs—Manhattan, Brooklyn, the Bronx, Queens, and Staten Island—each exhibiting its own lifestyle. Moving from one city neighbourhood to the next may be like passing from one country to another. New York is the most populous and the most international city in the country. Its urban area extends into adjoining parts of New York, New Jersey, and Connecticut. Located where the Hudson and East rivers empty into one of the world's premier harbours, New York is both the gateway to the North American continent and its preferred exit to the oceans of the globe. Area 305 square miles (790 square km). Pop. (2000) city, 8,008,278; New York–White Plains–Wayne MD, 11,296,377; New York–Northern New Jersey–Long Island MSA, 18,323,002; (2006 est.) city, 8,214,426; (2007 est.) New York–White Plains–Wayne MD, 11,607,843; New York–Northern New Jersey–Long Island MSA, 18,815,988.

 

Character of the city

 

• Statue of Liberty on Liberty Island in Upper New York Bay.

New York is the most ethnically diverse, religiously varied, commercially driven, famously congested, and, in the eyes of many, the most attractive urban centre in the country. No other city has contributed more images to the collective consciousness of Americans: Wall Street means finance, Broadway is synonymous with theatre, Fifth Avenue is automatically paired with shopping, Madison Avenue means the advertising industry, Greenwich Village connotes bohemian lifestyles, Seventh Avenue signifies fashion, Tammany Hall defines machine politics, and Harlem evokes images of the Jazz Age, African American aspirations, and slums. The word tenement brings to mind both the miseries of urban life and the upward mobility of striving immigrant masses. New York has more Jews than Tel Aviv, more Irish than Dublin, more Italians than Naples, and more Puerto Ricans than San Juan. Its symbol is the Statue of Liberty, but the metropolis is itself an icon, the arena in which Emma Lazarus's “tempest-tost” people of every nation are transformed into Americans—and if they remain in the city, they become New Yorkers.For the past two centuries, New York has been the largest and wealthiest American city. More than half the people and goods that ever entered the United States came through its port, and that stream of commerce has made change a constant presence in city life. New York always meant possibility, for it was an urban centre on its way to something better, a metropolis too busy to be solicitous of those who stood in the way of progress. New York—while the most American of all the country's cities—thus also achieved a reputation as both foreign and fearsome, a place where turmoil, arrogance, incivility, and cruelty tested the stamina of everyone who entered it. The city was inhabited by strangers, but they were, as James Fenimore Cooper explained, “essentially national in interest, position, pursuits. No one thinks of the place as belonging to a particular state but to the United States.” Once the capital of both its state and the country, New York surpassed such status to become a world city in both commerce and outlook, with the most famous skyline on earth. It also became a target for international terrorism—most notably the destruction in 2001 of the World Trade Center, which for three decades had been the most prominent symbol of the city's global prowess. However, New York remains for its residents a conglomeration of local neighbourhoods that provide them with familiar cuisines, languages, and experiences. A city of stark contrasts and deep contradictions, New York is perhaps the most fitting representative of a diverse and powerful nation.

 

The landscape

The city site

 

• New York City metropolitan area.

 

• Central New York City.

Sections of the granite bedrock of New York date to about 100 million years ago, but the topography of the present city is largely the product of the glacial recession that marked the end of the Wisconsin Glacial Stage about 10,000 years ago. Great erratic boulders in Manhattan's Central Park, deep kettle depressions in Brooklyn and Queens, and the glacial moraine that remains in parts of the metropolitan area provide silent testimony to the enormous power of the ice. Glacial retreat also carved out the waterways around the city. The Hudson and East rivers, Spuyten Duyvil Creek, and Arthur Kill are, in reality, estuaries of the Atlantic Ocean, and the Hudson is tidal as far north as Troy. The approximately 600 miles (1,000 km) of New York shoreline are locked in constant combat with the ocean, as it erodes the land and adds new sediments elsewhere. Although the harbour is constantly dredged, ship channels are continually filled with river silt and are too shallow for more modern deep-sea vessels.South of the rockbound terrain of Manhattan stretches a sheltered, deepwater anchorage offering easy access to the Atlantic Ocean. In 1524 the Italian navigator Giovanni da Verrazzano was the first European to enter the harbour, which he named Santa Margarita, and he reported that the hills surrounding the vast expanse of New York Bay appeared to be rich in minerals; more than 90 species of precious stone and 170 of the world's minerals have actually been found in New York. Verrazzano's daring expedition was commemorated in 1964, when what was then the world's longest suspension bridge was dedicated to span the Narrows at the entrance to Upper New York Bay.
Only the third largest American port at the time of the American Revolution, New York gradually achieved trade domination and by the mid-1800s handled more than half of the country's oceangoing travelers and commercial trade. After 1900 New York was the world's busiest port, a distinction it held until the 1950s. Cargo containerization, the obsolescence of its waterfront piers, and soaring labour costs shifted business to the New Jersey side of the river after the 1960s, but at the beginning of the 21st century the Port Authority of New York and New Jersey still dominated the water trade of the northeastern United States.

 

Climate and plant and animal life

The average temperature in January is about 31 °F (0 °C) and in June about 72 °F (22 °C), but recorded temperature extremes range from −15 to 106 °F (−26 to 41°C). Because of New York's moderate climate, the harbour rarely freezes. The annual precipitation is 44 inches (1,120 mm).

 

 

• Waterfowl on Jamaica Bay, Gateway National Wildlife Refuge, New York City. In the right background …

The city's flora and fauna are testimony to the rapid changes in the ecosystem imposed by urban settlement. In areas that once were hunting and fishing paradises for several bands of Native Americans, the most prevalent animals today are the cockroach and the Norway rat, both introduced to the city via trade with Europe. A wide variety of animal species are still found within the city, including 80 species of fish, scores of birds from the peregrine falcon to the pigeon, and such mammals as the raccoon and the occasional urban coyote. Wildlife refuges at Jamaica Bay and in Clove Lakes (Staten Island) and Alley Pond (Queens) parks provide sanctuaries for many species, allowing them to survive even within an unfavourable city environment. Vegetation has sufficient precipitation but has been reduced and destroyed with the advance of urban sprawl. The dominant characteristics of contemporary city plants are their ability to thrive despite acid rain and air that contains large components of ozone, vehicle emissions, and industrial by-products. However, the city's two botanical gardens, one in the Bronx and the other in Brooklyn, are highly regarded throughout the country, and zoos in every borough enchant visitors of all ages.

 

The city layout

The city's ancient bedrock provides the immovable foundation for hundreds of modern skyscrapers. New York has more of these awesome structures than any other world city. Architects may argue about the origin of the modern skyscraper, but most agree that Manhattan was where structures with steel skeletons were combined with the elevator to create a genre of buildings where great height could be reached practicably; the very word was coined in the 1880s to describe this New York phenomenon.
The earliest pathways for moving around Manhattan Island followed animal and Native American trails across difficult terrain; Broadway still follows one of these routes, which extended northward through the island. City planning was foreign to burghers in the 17th century, and roads were haphazardly authorized; only a few important ones to outlying agricultural communities were maintained, and it was not until 1798 that the city appointed a commissioner of streets. Colonial nonchalance is still visible in the meandering streets of Lower Manhattan. The optimistic spirit of the town is apparent in the street plan adopted in 1811, a grid of blocks, avenues, streets, and lots extending to the northern reaches of the island. City Hall, located now as then in Manhattan, was at that time so far removed from the centre of activity that its northern facade was left unfinished, since few could imagine it would ever be seen. Although often modified in specific cases, the rectilinear patterns imposed upon Manhattan in its infancy have determined its developmental patterns, and other boroughs adopted the system after the creation of Greater New York in 1898. The building of Central Park interrupted the grid, and road construction there pioneered concepts of limited-access and transverse-running roadways. In the 20th century, parkways were incorporated into the traffic patterns of all boroughs, as Eastern and Ocean parkways in Brooklyn, Riverside Drive (Manhattan), the Grand Concourse (the Bronx), and Queens Boulevard attest. Regardless of all its efforts, the modern city is infamous for the volume of traffic that clogs its well-laid-out street system.

 

The boroughs

The administrative structure of New York was shaped by the consolidation of the greater city in January 1898. Following the 19th-century pattern of urban imperialism, and in large part spurred by the challenge that Chicago posed to its primacy, modern New York was formed when the independent city of Brooklyn, the portion of Westchester county called the Bronx, Staten Island, and large parts of Queens county were added to Manhattan following a referendum. Although the population of the city expanded from about 2 million to 3.4 million, much of the new territory was still rural, and only two-fifths of all roads in the expanded city were paved. The five boroughs, which were all soon designated counties of New York state, became the basic municipal administrative units. The office of borough president was created to preserve “local pride and affection,” and its duties from 1901 to 1990 included service on the Board of Estimate, a central financial agency. Borough presidents now also serve as conduits of neighbourhood concern to the mayor, the city's chief administrator, and are responsible for appointing members of community boards, the City Planning Commission, and the Board of Education. These officials carry much of the burden in the continuous New York battle between strong mayors seeking central authority and local leaders aspiring to independent action.
In the early 20th century, when the population of Greater New York more than doubled, a major concern of city administrators was interlacing communication and transportation systems to create coherence within the metropolitan area. The first segment of the subway system opened in 1904, and soon all the boroughs were linked except Staten Island. In the 1930s and '40s the system often handled more than two billion passengers per year; the world's most extensive subway system soon became the best way to move about the metropolis. An ever-growing number of bridges, tunnels, and highways, designed to facilitate commerce, now take, along with the subways, hordes of commuters into Manhattan in the morning and return them home at night. Hundreds of thousands of “outer borough” residents and suburbanites work in and travel to Manhattan every day, in one of the great marvels of urban planning. Except for Staten Island, each of the boroughs considered independently would rank among the largest cities in the United States. Borough legislators constantly complain that their concerns are ignored, and many believe that local interests are usually sacrificed for the welfare of New York county (Manhattan). This perception led Staten Island to contemplate seceding from New York City and becoming an independent city in the 1990s.

 

Manhattan

 

• Shops, galleries, and restaurants in Soho, Manhattan, New York City.

 

• Manhattan (c. 1900), detail of a map of New York City from the 10th edition of …

More than 30 million tourists visit New York annually, but most of these rarely see much beyond the 22.6 square miles (58.5 square km) of Manhattan island, the smallest city borough. Divided by 12 north-south avenues and crossed by 220 east-west streets, Manhattan is easily understood and infinitely alluring. It is the original New York, boasts the world's largest collection of skyscrapers, and is overloaded with cultural institutions and places of enduring interest. Even to residents of the other boroughs, Manhattan is “the city,” the administrative, business, and financial centre of the metropolis and the basis of their renown. In no other part of New York are there such stark contrasts between rich and poor. The high-rise elegance of Park Avenue and the Upper East Side rapidly gives way to the teeming streets of Harlem to the north and to the crowded bohemian existence of the Lower East Side and Greenwich Village to the south. This cruel modern dichotomy echoes the 19th-century city, where industrial millionaires lived in luxury in Fifth Avenue mansions (now largely converted into cultural centres) far from the immigrant masses on the Lower East Side (whose sufferings the Tenement Museum now honours).Within this formidable historical imbalance, Manhattan is really composed of neighbourhoods that offer peaceful havens to contented residents. Many areas of the island are world famous, among them such ethnic enclaves as Chinatown, Yorkville, Little Italy, and Spanish and Black Harlem. In the streets snaking north from the ancient Dutch Battery, twisting lanes remind walkers that Manhattan was a trade centre before Boston, Philadelphia, or Williamsburg existed. Wall Street, the financial centre of the globe, was originally a Dutch fortification (1653) against feared British or Native American attacks that never came. The jumble of pre-Revolutionary streets continues up to Houston Street, where the grid pattern becomes dominant and continues up the island. Soho (short for “south of Houston”) covers much of the old immigrant East Side and now has been matched by a Noho neighbourhood. To the west is Henry James's Washington Square and beyond that Greenwich Village, formerly a haven for artists but today home to the affluent and professional classes. In 2003 the first section of Hudson River Park opened. Scheduled to extend from Battery Park to 59th Street, the park will cover some 550 acres (223 hectares) of renovated piers and waterfront land when it is completed. Chelsea and Gramercy Park offer diverse attractions before one reaches Times Square, the “Crossroads of the World,” recently transformed from a sleazy strip to a centre of tourism. At Columbus Circle visitors may enter Central Park, some 840 acres (340 hectares) of greenery created by Frederick Law Olmsted and Calvert Vaux in the mid-19th century to serve as the “lungs” of the city and defended with vigour against all commercial encroachment. The Upper West Side is filled with brownstone blocks and high-rise apartments and is home ground to the liberal, Democratic Party politics long identified with the modern city. East Harlem is Hispanic, as is Washington Heights, but the two are separated by Black Harlem and the academic bastion of Columbia University on Morningside Heights. At the far north of the island—where Manhattan actually spills into the Bronx—Irish influence predominates. Only in the few blocks of Marble Hill is Manhattan part of the mainland United States.
No area of New York demonstrates change and dynamism as fully as Manhattan. Millions enter it daily to seek their fortunes, and additional millions come to marvel at their efforts. It is Manhattan that they label a “great place, but I wouldn't want to live there.” More than half of the buildings in the world with 50 or more floors are located there, but its storied past can be partly recaptured by visiting South Street Seaport, riding the Staten Island Ferry, or walking through its distinctive neighbourhoods. Manhattan means Tammany Hall, the archetype of the political machine, as well as the reformers that overthrew the “Tiger.” It is supremely cosmopolitan, boasting the world's best restaurants and a myriad of cultural institutions, yet folksy enough to have block parties. Manhattan's variety and pace make New York the number one tourist city in America.

 

The Bronx

 

• The Bronx (c. 1900), detail of a map of New York City from the 10th edition of …

The Bronx is the northernmost borough and (except for a tiny sliver of Manhattan) the only part of New York on the mainland. It was first settled by farmers and for centuries remained rural. Originally tied to Manhattan only by the King's Bridge across the Spuyten Duyvil Creek, it was the scene of much conflict during the American Revolution, but afterward it became the area where wealthy politicians and merchants established summer homes. In the late 19th century it was home to a racetrack where the Belmont Stakes were run until 1889. Railroads, additional bridges, and commerce gradually bound the Bronx to the lower city, and in 1874 the towns of Morrisania, West Farms, and Kingsbridge were annexed by Manhattan. Elevated rail lines soon entered two new wards of the city, and vast parks were authorized; the modern borough, 42 square miles (109 square km) in area, is still one-fourth parkland. When additional land from the Bronx was added to New York in the consolidation of 1898, the modern borough was created. Prior to 1910 subway lines snaked their way north to facilitate population growth in the former farmland. By the time Bronx county was established in 1914, it had large groups of Italians, Jews, Irish, and Armenians. Many found work on public works projects, such as those that built parks, the Bronx Zoo, the New York Botanical Garden, or the Jerome Park Reservoir. Others laboured on the uptown campus of New York University, which is home to the country's first Hall of Fame (for Great Americans), expanded the subway system, or constructed Yankee Stadium (1923), the house that baseball legend Babe Ruth reputedly built. Fordham Road became a major shopping street, and the Grand Concourse won favour as one of the most prestigious addresses in the city. The borough still has the greatest number of Art Deco buildings in the world.An old Broadway song informed Americans that “the Bronx is up,” but few areas of the country experienced such a precipitous drop from prosperity. For a decade after the mid-1960s, the Bronx became the scene of classic urban decay caused by crime, drug dealers, renegade landlords, and the strain of accepting wave after wave of immigrants. Puerto Ricans won political power when they elected Herman Badillo as borough president; they later sent him to the U.S. Congress. However, the reputation of the borough came not from enlightened ethnic advance but from the fires that consumed its buildings and the drug and gang wars that destroyed its young people. Although fully linked to the metropolis by railroads and such bridges as the Robert F. Kennedy (1936; formerly called Triborough), Whitestone (1939), and Throgs Neck (1961), the South Bronx became a place to leave as quickly as possible. Internally, Jewish residents fled the Grand Concourse to live in Co-op City, a housing complex near Eastchester Bay whose more than 15,000 apartments made it the largest such development in the country. The spread of slum conditions northward from Mott Haven, Hunt's Point, and Morrisania threatened to turn the entire borough into a blighted area.
During the last quarter of the 20th century, the tide of decay reversed, and the Bronx rebounded in remarkable fashion. Laws that limited insurance payouts sharply reduced acts of landlord arson, and vacant lands were filled with single-family and row housing. Thousands of apartments were rehabilitated or restored with city funds, and hundreds more were saved by individuals who refused to give in to lawlessness. Tensions between competing populations—the borough is one-third African American, one-third Hispanic, and one-third Asian and white—have eased, and attendance at the universities in the borough has increased. The population was rising by the mid-1990s, and the upper-class enclaves of Riverdale and City Island once again ranked as sought-after housing areas for the city elite. Political power has remained in the hands of Hispanic voters, but the entire borough has benefited from a historic recovery.

 

Brooklyn

 

• Brooklyn (c. 1900), detail of a map of New York City from the 10th edition of Encyclopædia …

The most populous borough of New York, Brooklyn occupies 81 square miles (210 square km) to the east of Manhattan on the western fringe of Long Island. Sections of the area were first settled by the Dutch in the 1630s, and six largely agricultural towns—Brooklyn, Flatlands, Flatbush, New Utrecht, Bushwick, and Gravesend—soon thrived. Consolidated as Kings county in 1683, the region grew modestly as an appendage of Manhattan. During the American Revolution, Brooklyn was the scene of the Battle of Long Island (August 27, 1776). After the British occupied New York, their notorious prison ships were anchored in Wallabout Bay; a memorial to the thousands who died stands in Fort Greene Park. Early in the 19th century, Brooklyn became the world's first modern commuter suburb, and Brooklyn Heights was transformed into a wealthy residential community. Modern-day entrepreneurs have restored ferry service across the East River, and the esplanade along the heights rewards visitors with an unrivaled view of Manhattan's shore and skyline.To the chagrin of New York, Brooklyn became an independent city in 1834 and soon adopted the grid form of street layout. By the 1880s it had about 20,000 industrial jobs and handled more waterborne tonnage than its rival; during the American Civil War the Monitor had been constructed at the Continental Iron Works in Greenpoint. Brooklyn had its own Academy of Music (1859) and Historical Society (1863) and, in Prospect Park (1870s), an urban green space that represented a more mature version of Olmsted's vision across the river; it ranked among the largest cities in the country in the last four decades of the 19th century. However, the construction of John Roebling and Washington Roebling's Brooklyn Bridge to Manhattan (completed 1883) doomed its independent existence, as business interests craved closer ties to the metropolis. Overcoming the opposition of the local Democratic machine, Brooklyn accepted consolidation by a margin of only 277 votes and became a part of Greater New York in 1898.
Contemporary Brooklyn retains much of the independent character it displayed as an industrial city. It has its own shopping mecca (around Flatbush Avenue), a Civic Center, and even a Chinatown in Sunset Park. Additional access to Manhattan came with the construction of the Williamsburg (1903) and Manhattan (1909) bridges and later through Battery Tunnel (1950). In the 1920s full subway service was extended as far as Coney Island, and in 1931 the borough became home to New York's first airport, Floyd Bennett Field (now part of Gateway National Recreation Area). Brooklyn had something that Manhattan could never match, a beloved baseball team, the Dodgers, playing in a wonderfully intimate ball park, Ebbets Field; many hearts were broken when the team decamped to California in 1957, and the field was subsequently demolished. Brooklyn remains famous for its multiplicity of houses of worship serving neighbourhoods as varied as Brighton Beach and Bensonhurst, Bay Ridge and Ridgewood, and Canarsie and Cobble Hill. Although the borough has many private homes, the majority of its people live in apartments, mammoth housing projects, or upgraded row housing. Bedford-Stuyvesant and Brownsville have some of the worst slums in New York, with blocks of burned-out and abandoned buildings. Tensions between African Americans and Hasidic Jews in the biracial area of Crown Heights led to a prolonged conflict in the 1990s, and their relationship has remained strained. On the other hand, careful use of landmark protection legislation has enabled several historic neighbourhoods to restore their viability. The originality of the borough is visible in the creation of new areas such as DUMBO (Down Under the Manhattan Bridge Overpass) and the revitalization of underused piers for shipping.