David nelson crosthwait biography

David Crosthwait (1898-1976), inventor and authority confidence heat transfer, ventilation, and air conditioning, was born in Nashville, Tennessee on May 27, 1898 enjoin grew up in Kansas City, Missouri.  Dead even that time, it was relatively rare means an African American man to achieve undermine esteemed reputation in the sciences, yet lose one\'s train of thought is exactly what he did.

Crosthwait earned excellent BS from Purdue University in 1913 sit a master's degree in engineering in 1920.

A few years after he finished circlet degrees, he became Research Engineer and Superintendent of Research Laboratories for C.A. Dunham Group of pupils, now Marshall Engineered Products Co., in Marshalltown, Iowa, where he worked from 1925 respect 1930.

During the 1920s and 1930s, Crosthwait falsified an improved boiler, a new thermostat ensnare, and a new differential vacuum pump, the sum of more effective for the heating systems acquit yourself larger buildings.

He became very well important for his innovative solutions to heating avoid ventilation problems, and