Since this is Black History Month, I thought I would acknowledge an inventor and Purdue graduate in Mechanical Engineering.
www.purduealumnus.org
![www.purduealumnus.org](/proxy.php?image=https%3A%2F%2Fwww.purduealumnus.org%2Fwp-content%2Fuploads%2FCrosthwait_David.jpg&hash=7a742a0c0b7062cb28a09290e43d3cba&return_error=1)
David Crosthwait, Pioneering Engineer
Born in Nashville, Tennessee, David Nelson Crosthwait Jr. (ME’1913) was considered an authority on heat transfer, ventilation, and air conditioning. He was a research engineer, director of research laboratories for CA Dunham Company in Marshalltown, Iowa, from 1925 to 1930. He was the technical...