| a mechanical engineer and inventor who is most famous for the development of the steam engine and for whom the system of measuring the rate of energy conversion was named |
American publisher and politician who invented the first typewriter and qwerty keyboard |
Polish woman physicist and chemist who discovered radium and polonium |
well-known scientist and politician remembered for his discoveries in electricity |
American inventor and scientist most known for the development of the phonograph and light bulb |
| German goldsmith and printer and the inventor of the printing press |
German-Jewish immigrant who founded the first blue jean manufacturer |
American inventor most known for the invention of the cotton gin |
a toy inventor that is most famous for the Etch-a-Sketch |
scientist and inventor credited with inventing the telephone |