(Encyclopedia) horsepower, unit of power in the English system of units. It is equal to 33,000 foot-pounds per minute or 550 foot-pounds per second or approximately 746 watts. The term horsepower…
(Encyclopedia) North Platte project, unit of the U.S. Bureau of Reclamation, in the North Platte River valley, W Nebr. and E Wyo. It supplies hydroelectric power to many towns and industries and…
(Encyclopedia) servomechanism, automatic device for the control of a large power output by means of a small power input or for maintaining correct operating conditions in a mechanism. It is a type of…
(Encyclopedia) apostolic succession, in Christian theology, the doctrine asserting that the chosen successors of the apostles enjoyed through God's grace the same authority, power, and responsibility…
HOW WERE FACTORIES POWERED? WHY WERE GOODS MASS PRODUCED? HOW DID WORKING CONDITIONS CHANGE? BIOGRAPHY: ISAMBARD KINGDOM BRUNEL 1806–1859 TRANSPORTATIONURBANIZATIONFIND OUT MOREThe Industrial…
NUCLEAR EXPLOSIONNUCLEAR FISSIONNUCLEAR FUSIONBIOGRAPHY: LISE MEITNER Austro-Swedish, 1878-1968FIND OUT MOREAtoms are small but can release lots of energy. When an unstable atom changes into a more…
WHEN WAS BLOODY SUNDAY IN ST. PETERSBURG? WHO OVERTHREW THE CZAR? WHEN WAS THE OCTOBER REVOLUTION? COMMUNISMFIND OUT MOREBy the 1890s, many European nations were bringing in democratic reforms, but…
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…
