Born: 1765Birthplace: Westboro, Mass. Cotton gin—Whitney invented the cotton gin, a machine that greatly increased the speed for separating the cotton from its pod and seeds and to clean it.…
Richardson's ExperimentWeatherPrediction by NumbersRichardson's ExperimentPutting the Machines to Work Weather Words "Science is the knowledge of consequences and the dependence of one fact upon…
Born: 1872Birthplace: Sweden High frequency alternator—Alexanderson built a high frequency machine that would operate at high speeds and produce a continuous wave transmission. His inventions…
Born: 1876Birthplace: Angola, N.Y. Apparatus for treating air—Carrier developed the first safe, low pressure centrifugal refrigeration machine using non-toxic, nonflammable refrigerant. By…
Born: 1860Birthplace: Buffalo, N.Y. Art of compiling statistics—Hollerith invented a punch card tabulation machine system that revolutionized statistical computation. His system enabled the 1890…
Born: 1926Birthplace: New York City Diagnostic x-ray systems—Ledley developed the ACTA diagnostic x-ray scanner, the first whole-body computerized tomography (CT) machine. He was the first to do…
Born: 1926 Photocopying. Gundlach devoted over three decades to transforming photocopiers into small, robust products that revolutionized xerography. As the field advanced, Gundlach invented ways…
Born: Jan. 16, 1901Mechanic, ice salesman and skating rink owner in Paramount, Calif. invented 1st ice-resurfacing machine in 1949; now there are very few skating rinks without one as thousands…
Born: 1917Birthplace: New York City Bifurcated vaccination needle—Until 1967 smallpox killed at least 2 million people annually. In 1980 the World Health Organization declared that smallpox had…
