Description: When curators at the Smithsonian National Museum of American History looked at seven radiometers in storage, they learned the instruments had been at the Smithsonian for nearly one hundred fifty years.
Description: A twentieth century Renaissance man, Louis R. Purnell lived a remarkable life. His career began in the skies above Italy and Germany, where he flew 88 combat missions as an original member of the Tuskegee Airmen. After the war, while working at the National Museum of Natural History, he traveled the world’s oceans collecting marine specimens, taught himself geology and
Showing results 1225 - 1236 of 1585 for Secretary's Distinguished Research Lecture Award