Submitted by khenkes on Tue, 11/14/2017 - 10:55
Brief biographies of Archimedes, Leonardo da Vinci, Galileo, the Montgolfier brothers, Robert Fulton, Samuel Morse, Alexander Graham Bell, Thomas A. Edison, the Wright brothers, Marconi, John Logie Baird, Robert Watt, and Frank Whittle.
Submitted by khenkes on Wed, 08/09/2017 - 11:25
