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Zoom Inventors and Inventions |
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| BATTERY A battery is a device that converts chemical energy into electrical energy. Each battery has two electrodes, an anode (the positive end) and a cathode (the negative end). An electrical circuit runs between these two electrodes, going through a chemical called an electrolyte (which can be either liquid or solid). This unit consisting of two electrodes is called a cell (often called a voltaic cell or pile). Batteries are used to power many devices and make the spark that starts a gasoline engine. Alessandro Volta was an Italian physicist invented the first chemical battery in 1800. Storage batteries are lead-based batteries that can be recharged. In 1859, the French physicist Gaston Plante (1834-1889) invented a battery made from two lead plates joined by a wire and immersed in a sulfuric acid electrolyte; this was the first storage battery. The dry cell is a an improved voltaic cell with a cylindrical zinc shell (the zinc acts as both the cathode and the container) that is lined with an ammonium chloride (the electrolyte) saturated material (and not a liquid). The dry cell battery was developed in the 1870s-1870s by Georges Leclanche of France, who used an electrolyte in the form of a paste. Edison batteries (also called alkaline batteries) are an improved type of storage battery developed by Thomas Edison. These batteries have an alkaline electrolyte, and not an acid. |
BASKETBALL  The game of basketball was invented by James Naismith (1861-1939). Naismith was a Canadian physical education instructor who invented the game in 1891 so that his students could participate in sports during the winter. In his original game, which he developed while at the Springfield, Massachusetts YMCA (Young Men's Christian Association), Naismith used a soccer ball which was thrown into peach baskets (with the basket bottoms intact). The first public basketball game was in Springfield, MA, USA, on March 11, 1892. Basketball was first played at the Olympics in Berlin Germany in 1936 (America won the gold medal, and Naismith was there).
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| BELL, ALEXANDER GRAHAM Alexander Graham Bell (March 3, 1847, Edinburgh, Scotland - August 2, 1922, Baddek, Nova Scotia) invented the telephone (with Thomas Watson) in 1876. Bell also improved Thomas Edison's phonograph. Bell invented the multiple telegraph (1875), the hydroairplane, the photo-sensitive selenium cell (the photophone, a wireless phone, developed with Sumner Tainter), and new techniques for teaching the deaf to speak. In 1882, Bell and his father-in-law, Gardiner Hubbard, bought and re-organized the journal "Science." Bell, Hubbard and others founded the National Geographic Society in 1888; Bell was the President of the National Geographic Society from 1898 to 1903. |
| BRAILLE TYPEWRITER The Hall Braille typewriter (also called a Braillewriter or Brailler) was invented in 1892 by Frank Haven Hall. Hall was the Superintendent of the Illinois Institution for the Blind. The Hall Braille typewriter was manufactured by the Harrison & Seifried company in Chicago, Illinois, USA. Hall introduced his invention on May 27, 1892, at Jacksonville, Illinois. It types raised Braille dots onto paper. |
CARVER, GEORGE WASHINGTON  George Washington Carver (1865?-1943) was an American scientist, educator, humanitarian, and former slave. Carver developed hundreds of products from peanuts, sweet potatoes, pecans, and soybeans; his discoveries greatly improved the agricultural output and the health of Southern farmers. Before this, the only main crop in the South was cotton. The products that Carver invented included a rubber substitute, adhesives, foodstuffs, dyes, pigments, and many other products.
For more information on Carver, click here. For a cloze (fill-in-the-blank) activity on Carver, click here. |
EDISON, THOMAS ALVA
Thomas Alva Edison (1847-1931) was an American inventor (also known as the Wizard of Menlo Park) whose many inventions revolutionized the world. His work includes improving the incandescent electric light bulb and inventing the phonograph, the phonograph record, the carbon telephone transmitter, and the motion-picture projector.
Edison's first job was as a telegraph operator, and in the course of his duties, he redesigned the stock-ticker machine. The Edison Universal Stock Printer gave him the capital ($40,000) to set up a laboratory in Menlo Park, New Jersey, to invent full-time (with many employees). Edison experimented with thousands of different light bulb filaments to find just the right materials to glow well, be long-lasting, and be inexpensive. In 1879, Edison discovered that a carbon filament in an oxygen-free bulb glowed but did not burn up for quite a while. This incandescent bulb revolutionized the world. |
ELEVATOR BRAKE Elisha Graves Otis (1811-1861) invented the elevator brake, which greatly improved the safety of elevators. He used a ratchet on a spring to catch the elevator in the event of an accident (like a broken cable).
In 1854, at the Crystal Palace Exposition in New York, Otis demonstrated how safe his elevator was by cutting the elevator's cable with an ax, and the elevator car stayed where it was in the shaft. Otis' invention spurred the development of skyscrapers, changing the look of cities around the world forever. |
FOUCAULT, JEAN Jean Bernard Léon Foucault (1819-1868) was a French physicist who invented the gyroscope (1852) and the Foucault pendulum (1851). A gyroscope is essentially a spinning wheel set in a movable frame. When the wheel spins, it retains its spatial orientation, and it resists external forces applied to it. Gyroscopes are used in navigation instruments (for ships, planes, and rockets). Foucault was the first person to demonstrate how a pendulum could track the rotation of the Earth (the Foucault pendulum) in 1851. He also showed that light travels more slowly in water than in air (1850) and improved the mirrors of reflecting telescopes (1858). |
FOX, SAMUEL Samuel Fox (1815 - 1887), an English inventor and manufacturer, invented the steel ribbed umbrella in 1852 (the ribs of the umbrella hold the fabric in place - wood or whale bone had been used as ribs before Fox's invention). Fox started the "English Steels Company," which manufactured his new umbrella. |
| GYROSCOPEA gyroscope is essentially a spinning wheel set in a movable frame. When the wheel spins, it retains its spatial orientation, and it resists external forces applied to it. Gyroscopes are used in navigation instruments (for ships, planes, and rockets). Jean Bernard Léon Foucault (1819-1868), a French physicist, invented the gyroscope in 1852. |
| LATIMER, LEWIS H.Lewis Howard Latimer (1848-1928) was an African-American inventor who was a member of Edison's research team, which was called "Edison's Pioneers." Latimer improved the newly-invented incandescent light bulb by inventing a carbon filament (which he patented in 1881).
For more information on Lewis Howard Latimer, click here. |
| LECLANCHE, GEORGES The dry cell is a an improved voltaic cell (battery) that has a cylindrical zinc shell (the zinc acts as both the cathode and the container) that is lined with an ammonium chloride (the electrolyte) saturated material (and not a liquid). Although called dry, dry cells are not entirely dry, but they are less bulky and more easily transported than earlier batteries. The dry cell battery was developed in the 1870s-1870s by Georges Leclanché (1839-1882), a French engineer, who used an electrolyte in the form of a paste in his new battery. |
| MARCONI, GUGLIELMO Guglielmo Marconi (1874-1937) was an Italian inventor and physicist. In 1895, Marconi invented the radio (wireless telegraphy), building machinery to transmit and receive radio waves. His first transmission across an ocean (the Atlantic Ocean) was on December 12, 1901. Marconi won the Nobel Prize for Physics in 1909. |
McCOY, ELIJAH Elijah McCoy (1843 or 1844-1929) was a mechanical engineer and inventor. McCoy's high-quality industrial inventions (especially his steam engine lubricator) were the basis for the expression "the real McCoy," meaning the real, authentic, or high-quality thing.
For more information on Elijah McCoy, click here. For a cloze activity on McCoy, click here. |
 MOTORCYCLEThe earliest motorcycle was a coal-powered, two-cylinder, steam-driven motorcycle that was developed in 1867 by the American inventor Sylvester Howard Roper. A gas-powered motorcycle was invented by the German inventor Gottlieb Daimler in 1885. His mostly wooden motorcycle had iron-banded wheels with wooden spokes. This bone-crunching vehicle was powered by a single-cylinder engine. |
| NAISMITH, JAMES James Naismith (1861-1939) was a Canadian physical education instructor who invented the game of basketball in 1891. He developed this indoor game so that his students could participate in sports during the winter. In his original game, which he invented while at the Springfield, Massachusetts YMCA (Young Men's Christian Association), Naismith used a soccer ball which were thrown into peach baskets (with their bottoms intact). The first public basketball game was in Springfield, MA, USA, on March 11, 1892. Basketball was first played at the Olympics in Berlin Germany in 1936 (America won the gold medal, and Naismith was there). Naismith was inducted into the Basketball Hall of Fame in 1978. |
| PLANTE, GASTON In 1859, the French physicist Raymond Gaston Planté (April 22, 1834-1889) invented a battery made from two lead plates joined by a wire and immersed in a sulfuric acid electrolyte; this was the first storage battery. Storage batteries are batteries that can be recharged. |
| POTATO CHIPS The potato chip was invented in 1853 by George Crum. Crum was a Native American/African American chef at the Moon Lake Lodge resort in Saratoga Springs, New York, USA. French fries were popular at the restaurant and one day a diner complained that the fries were too thick. Although Crum made a thinner batch, the customer was still unsatisfied. Crum finally made fries that were too thin to eat with a fork, hoping to annoy the extremely fussy customer. The customer, surprisingly enough, was happy - and potato chips were invented! For more information on George Crum and potato chips, click here. |
| PUSHPIN The push pin ("a thumbtack with an elongated handle that makes it easier to put in and remove") was invented by the Pennsylvanian inventor Edwin Moore in 1900. Moore started a company producing these useful pins in 1900. After years of growing, his company incorporated on July 19, 1904, and was called the "Moore Push-Pin Company." The company 1912 through 1977, the Company was located in Germantown, Pennsylvania.
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| RADIO The radio was invented by Nikola Tesla. The radio was promoted and popularized by Guglielmo Marconi in 1895. The first radio transmission across an ocean (the Atlantic Ocean) occurred on December 12, 1901. |
RECORD Records, used to record sound, were invented in 1877 by Thomas Alva Edison, who invented the first machine to record and play back sounds (the phonograph or record player). Early records were cylindrical, but flat disks soon replaced them.
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| RENO, JESSE W. Jesse W. Reno was an American inventor who developed the first escalator in 1891. An escalator is a moving stairway that helps people move easily from floor to floor in building. On his "inclined elevator," passengers rode on an wedge-shaped supports attached to a conveyor belt at an incline of about 25 degrees. The original elevator had a stationary handrail (which was soon replaced with a moving handrail). |
 ROENTGEN, WILHELM VONX-rays were discovered in 1895 by Wilhelm Konrad von Roentgen (1845-1923). Roentgen was a German physicist who described this new form of radiation that allowed him to photograph objects that were hidden behind opaque shields. He even photographed part of his own skeleton. X-rays were soon used as an important diagnostic tool in medicine. Roentgen called these waves "X-radiation" because so little was known about them. |
| ROPER, SYLVESTER HOWARD Sylvester Howard Roper (1823-1896) was an American inventor from New Hampshire and Massachusetts. Roper developed a coal-powered, two-cylinder, steam-driven wooden motorcycle in 1867. Roper also developed a steam-driven car. Roper died at the age of 73 while testing a new motorcycle. |
 SWAN, JOSEPH WILSONThe first practical electric light bulb was made in 1878 simultaneously (and independently) by Joseph Wilson Swan and Thomas Alva Edison. Sir Joseph Wilson Swan (1828-1914) was an English physicist who was determined to devise a practical, long-lasting electric light. After many years of experimentation, he found that a carbon paper filament worked well, but burned up quickly. In 1878, he demonstrated his new electric lamps in Newcastle, England. |
| TELEPHONE The telephone (meaning "far sound") is the most widely used telecommunications device. It was invented in 1876 by Alexander Graham Bell (with Thomas Watson). Bell patented his invention on March 1876 (patent No. 174,465). His device transmitted speech sounds over electric wires, and his idea has remained one of the most useful inventions ever made. |
TESLA, NIKOLA Nikola Tesla (1856-1943) was a Serbian-American inventor who developed the radio, fluorescent lights, the Tesla coil (an air-core transformer that generates a huge voltage from high-frequency alternating current), remote-control devices, and many other inventions; Tesla held 111 patents. Tesla developed and promoted the uses of alternating current (as opposed to direct current, which was promoted fiercely by Thomas Edison and General Electric). Tesla briefly worked with Thomas Edison. The unit of magnetic induction is named for Tesla; a tesla (abbreviated T) is equal to one weber per square meter.
For a page on Tesla, click here. |
| VON ROENTGEN, WILHELM X-rays were discovered in 1895 by Wilhelm Konrad von Roentgen (1845-1923). Roentgen was a German physicist who described this new form of radiation that allowed him to photograph objects that were hidden behind opaque shields. He even photographed part of his own skeleton. X-rays were soon used as an important diagnostic tool in medicine. Roentgen called these waves "X-radiation" because so little was known about them. |
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Leo Hendrik Baekeland (November 14, 1863 - February 23, 1944) was a Belgian-born American chemist who invented Velox photographic paper (1893) and Bakelite (1907), an inexpensive, nonflammable, versatile, and very popular plastic.
BLUE JEANS
The laboratory Bunsen burner was invented by Robert Wilhelm Bunsen in 1855. Bunsen (1811-1899) was a German chemist and teacher. He invented the Bunsen burner for his research in isolating chemical substances - it has a high-intensity, non-luminous flame that does not interfere with the colored flame emitted by chemicals being tested.
Luther Burbank (1849-1926) was an American plant breeder who developed over 800 new strains of plants, including many popular varieties of potato, plums, prunes, berries, trees, and flowers. One of his greatest inventions was the Russet Burbank potato (also called the Idaho potato), which he developed in 1871. This blight-resistant potato helped Ireland recover from its devastating potato famine of 1840-60. Burbank also developed the Flaming Gold nectarine, the Santa Rosa plum, and the Shasta daisy. Burbank was raised on a farm and only went to elementary school; he was self-educated. Burbank applied the works of Charles Darwin to plants. Of Darwin's The Variation of Animals and Plants under Domestication, Burbank said, "It opened up a new world to me."
COCA-COLA
Cotton candy is a soft confection made from sugar that is heated and spun into slim threads that look like a mass of cotton. It was invented in 1897 by William Morrison and John C. Wharton, candymakers from Nashville, Tennessee.
George Eastman (1854-1932) was an American inventor who made many improvements in photography. Eastman invented the dry plate method in 1879; this was an improvement in the wet plate process photographic process). He founded the Eastman Dry Plate company in 1881, located in Rochester, New York. Eastman and William Walker invented flexible roll film in 1882, eliminating the necessity of using cumbersome glass plates for photography. Eastman produced the first simple, all-purpose, fixed-focus camera in 1888, which sold for $25.00; this was the first KODAK Camera . By 1900, Eastman Kodak was producing a camera that cost only one dollar. Early cameras took round pictures. To get the film developed, the photographer had to send the entire camera to the Rochester factory. The company name was changed to Eastman Kodak Company in 1892, and is still one of the largest photographic companies in the world.
Lewis E. Waterman was an American inventor and insurance salesman who developed a relatively leak-proof fountain pen; he patented his new invention in 1884 and revolutionized writing. Before his fountain pen, pen tips had to be tipped into ink after every few words. Waterman put an ink reservoir in the pen above the pen's metal nib (point). This reservoir would hold enough ink for a few pages of writing. There were many problems in developing the fountain pen, especially the difficulty of controlling the flow of the ink. Putting a sealed reservoir above the nib wouldn't let the ink flow, but if it wasn't sealed, all the ink would flow at once. Waterman used capillary action to replace the ink in the rubber sac with air so that the ink flowed smoothly but did not flow all at once. Also, the metals in the ink dissolved the steel pen nib, so Waterman used an iridium-plated gold nib. Waterman was also the first person to place a clip on the cap of the pen.
Hot dogs began as sausages sold in buns. They were first sold from carts by German immigrants on the streets of New York City in the 1860s. The bun replaced a plate and made the hot dog easier to carry and eat. Sauerkraut was provided as a relish on the hot dog.
The electric iron was invented in 1882 by Henry W. Seeley, a New York inventor Seeley patented his "electric flatiron" on June 6, 1882 (patent no. 259,054). His iron weighed almost 15 pounds and took a long time to warm up.
Whitcomb L. Judson was an American engineer from Chicago, Illinois, who invented a metal zipper device with locking teeth in 1890. Judson patented his "clasp-locker'' on Aug. 29, 1893; later in 1893, he exhibited this new invention at the Chicago World's Fair. He never succeeded in marketing his new device. The zipper was improved by the Swedish-American engineer, Gideon Sundbach, and was named by the B.F. Goodrich company in 1923. Judson died in 1909, before his device became commonly used and well-known
NOBEL, ALFRED
The paper clip was invented in 1899 or 1890 by a Norwegian patent clerk called Johann Vaaler. His original paper clip was a thin spring-steel wire with triangular or square ends and two "tongues." Vaaler patented his invention in Germany and later in the USA (1901).
Norbert Rillieux (March 17, 1806-October 8, 1894) was an African-American inventor and engineer who invented a device that revolutionized sugar processing. Rillieux's multiple effect vacuum sugar evaporator (patented in 1864) made the processing of sugar more efficient, faster, and much safer. The resulting sugar was also superior. His apparatus was eventually adopted by sugar processing plants all around the world.
Joseph Gayetty invented toilet paper in 1857. His new toilet paper was composed of flat sheets. Before Gayetty's invention, people tore pages out of mail order catalogs - before catalogs were common, leaves were used. Unfortunately, Gayetty's invention failed. Walter Alcock (of Great Britain) later developed toilet paper on a roll ( instead of in flat sheets). Again, the invention failed.
The tractor is a high power but low-speed vehicle that is used in farming, construction, road building, and other work projects. Some tractors move on wheels, others move on a continuous track. The first gasoline-powered tractor was made in 1892 by John Froehlich, a blacksmith from Iowa. The first mass-produced tractors were sold by C.W. Hart and C.H. Parr of Charles City, Iowa.
The first typewriter was invented in 1867 by the American printer and editor Christopher Latham Sholes (Feb. 14, 1819 - Feb. 17, 1890). Sholes' prototype had the user hit a key (for each letter and number), which struck upward onto a flat plate, producing a carbon impression of the letter or number on the paper. He made the prototype using the key of an old telegraph transmitter. There was no way of spacing the letters, no carriage return, and no shift keys; these features would be added to later models.
John Venn (1834 - 1923) was an English mathematician who invented the Venn diagram. His diagram clearly shows the similarities and differences for two different entities; it is a visual way to represent sets, and their unions and intersections.
Linus Yale Jr. (1821-1868) was an American mechanical engineer and manufacturer who developed the cylinder pin-tumbler lock (and other key and combination locks). Yale's father, Linus Yale, had invented an earlier pin-tumbler lock in 1848; the son's lock used a smaller, flat key with serrated edges (like the ones we still use today). There is no connection between Linus Yale and Yale University.
The zipper was improved in 1913 by the Swedish-American engineer, Gideon Sundbach (a former employee of Judson). Sundbach was successful at selling his invention, which he called the "Hookless 2." He sold these fasteners to the US Army, who put zippers on soldiers' clothing and gear during World War I.