Statistics for Who Invented That?

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Hint	Answer	% Correct
Lightbulb (Incandescent)	Thomas Edison	95%
Telephone	Alexander Graham Bell	90%
Airplane (First powered, sustained flight)	Wright Brothers	81%
General Relativity	Albert Einstein	67%
Radio	Guglielmo Marconi	57%
Assembly Line	Henry Ford	57%
Printing Press	Johannes Gutenberg	57%
AC Power, Coil named after him	Nikolai Tesla	57%
Apple I	Steve Wozniak	57%
Penicillen	Alexander Fleming	43%
AK-47	Mikhail Kalashnikov	38%
Cotton Gin	Eli Whitney	29%
Automobile (First Practical)	Karl Benz, Gottlieb Daimler	29%
World Wide Web	Sir Tim Berners Lee	24%
Nuclear Reactor	Enrico Fermi	19%
300 Uses for Peanuts, Peanut Butter, etc	George Washington Carver	10%
Piano	Bartolomeo Cristofori	0%
M16	Eugene Stoner	0%
Mercury Thermometer	Gabriel Fahrenheit	0%
Insulin	Sir Frederick Banting	0%
Zipper	Whitcomb L. Judson, Gideon Sundback	0%