"I remember this circumstance very well because of the excitement and surprise and incredulity which he manifested at the time. He asked me over and over again what it was." (William D. Coolidge, ...

At the dawn of the twentieth century, many people believed that the automobile offered great potential as a practical means of transportation. Once expensive toys, automobiles were becoming faster and ...

This model demonstrates the invention of a mechanical crawling doll. It accompanied the patent submission of George Pemberton Clarke, who received U.S. patent No. 118,435 on 29 August 1871 for his ...

Collections Women Mathematicians and NMAH Collections Olive C. Hazlett: Music and Puzzles Olive C. Hazlett (1890–1974), a leading American mathematician of the 1920s, received this wooden tenor ...

Anodized aluminum tumblers were commonly used for serving both alcoholic and non-alcoholic drinks at backyard cookouts. The anodizing process increased the thickness of the oxide layer on metallic ...