Selectors: Marilyn Weiss and Emily Brush
"I believe that dreams - day dreams, you know, with your eyes wide open and your brain-machinery whizzing - are likely to lead to the betterment of the world. The imaginative child will become the imaginative man or woman most apt to create, to invent, and therefore to foster civilization.”
- L. Frank Baum, The Lost Princess of Oz
Dmitri Ivanovich Mendeleev formulated the Periodic Law, created his own version of the periodic table of elements, and used it to correct the properties of some already discovered elements and also to predict the properties of eight elements yet to be discovered. This is Mendeleev's 1871 periodic table.
Ferris Wheel at Michigan State Fair. 1949.
WSU Virtual Motor City Collection.
In 1888, Nikola Tesla invented the first practicable AC motor and polyphase
power transmission system, which revolutionizes industry and commerce.
National Inventors Hall of Fame. Alexandria, VA.