(Encyclopedia) Cartwright, Edmund, 1743–1823, English inventor and clergyman. He was the inventor of an imperfect power loom that, when finally patented (1785), became the parent of the modern loom.…
Ballots: Types and History by David Johnson Paper Ballots First used in the Australian state of Victoria in 1857, the paper ballot listing all the candidates was first known as "the…
Born: 10/5/1829Birthplace: Fairfield, Vt. Chester Alan Arthur was born at Fairfield, Vt., on Oct. 5, 1829. A graduate of Union College, he became a successful New York lawyer. In 1859, he married…
HOW ARE SCIENCE AND TECHNOLOGY LINKED? FIND OUT MORETechnology is the practical application of knowledge and skills to make tools, machines, buildings, vehicles, and other useful things.HOW ARE…
Born: 1854Birthplace: Germany Machine for producing printing bars—Mergenthaler's linotype composing machine allowed one operator to be machinist, typesetter, justifier, typefounder and type…
Born: 1871Birthplace: Dayton, Ohio Flying machine—The Wright brothers achieved the first powered, sustained and controlled flight of a heavier than air machine at Kitty Hawk, North Carolina in 1903…
Born: 1867Birthplace: Millville, Ind. Flying machine—The Wright brothers achieved the first powered, sustained and controlled flight of a heavier than air machine at Kitty Hawk, North Carolina in…
Born: 1914Birthplace: Moirans, France Photo composing machine—Moyroud and Higonnet developed the first practical phototypesetting machine, the Lumitype—later known as the Photon—which was first…
Born: 1903 Heart-Lung Machine. Gibbon's development of the heart-lung machine made possible the first successful open-heart operation in 1953. Improved versions allow surgeons today to perform…
AIR PRESSUREWATER PRESSUREFIND OUT MOREWhen you press or push something, the force you apply is called pressure. Pressure is measured as the force you use divided by the area over which you use…
