Born: Sept. 20, 1909Educator and first president of Education Facilities Laboratories in New York in 1964 hired Monsanto Co. to produce a synthetic turf that kids could play on in city schoolyards…
Born: 1898Birthplace: Leominster, Mass. Negative feedback amplifier—Black's negative feedback concept involved feeding systems output back to the input as a method of system control thus helping to…
Born: 1903Birthplace: Fremont, Neb. Stroboscope—Edgerton's research in the fields of stroboscopy and ultra-high speed photography led to the modern electronic speed flash. He was noted for his…
Born: 1927Birthplace: Los Angeles, Calif. Ruby laser systems—In 1960 Maiman built and patented the prototype of the ruby laser. The amplified light of the laser has many uses in industry, surgery,…
inventorBorn: 20 July 1916Best Known as: inventor of tempered glass Harold McMaster invented tempered glass which is indispensible in modern skyscrapers and any…
DAVIDSON, Alexander Caldwell, a Representative from Alabama; born near Charlotte, Mecklenburg County, N.C., December 26, 1826; attended the public schools of Marengo County, Ala., and was…
DAVIDSON, Irwin Delmore, a Representative from New York; born in New York City January 2, 1906; attended the public schools; Washington Square College of New York University, B.S., 1927; New…
DAVIDSON, James Henry, a Representative from Wisconsin; born in Colchester, Delaware County, N.Y., June 18, 1858; attended the public schools and Walton (N.Y.) Academy; taught school in…
DAVIDSON, Thomas Green, a Representative from Louisiana; born at Coles Creek, Jefferson County, Miss., August 3, 1805; completed preparatory studies; studied law; was admitted to the bar and…
