QB - Inventors

Mercury thermometer - Farenheit

Lightning rod - Franklin

Safety razor - Gillette

Sleeping car - Pullman

Cotton gin - Whitney

Harvester/Reaper - McCormick

Movable type for printing - Guttenberg

Steel plow - Deere

Microscope - Van Leewenhoek

X-rays - Roentgen

Antiseptic surgery - Lister

Battery - Volta

Light bulb - Edison

Telescope - Galileo

Telegraph - Morse

Telephone - Bell

Wireless telegraph - Marconi

Phonograph - Edison

Airplane - Wright brothers

Vulcanization of rubber - Goodyear

Bifocals - Franklin

Ferris wheel - Ferris

Revolver - Colt

Machine gun - Gatling

Liquid fuel rocket - Goddard

Dynamite - Nobel

Hydrogen bomb - Teller

Sewing machine - Singer

Gas mask - Morgan

Traffic light - Morgan

Steam engine (improved) - James Watt

Electric motor - Michael Faraday

Alternating current (AC power) - Nikola Tesla

Diesel engine - Rudolf Diesel

Automobile (first practical) - Karl Benz

Assembly line manufacturing - Henry Ford

Ballpoint pen - László Bíró

Air conditioning - Willis Carrier

Elevator safety brake - Elisha Otis

Barbed wire - Joseph Glidden

Typewriter - Christopher Latham Sholes

Vaccination (smallpox) - Edward Jenner

Penicillin - Alexander Fleming

Anesthesia (ether) - William T. G. Morton

Electric generator / dynamo - Werner von Siemens

Analytical Engine / early computer - Charles Babbage

Transistor - Bardeen, Shockley, Brattain

World Wide Web - Tim Berners-Lee

Jet engine - Frank Whittle

Helicopter - Igor Sikorsky

Submarine (modern) - John Philip Holland

Spinning jenny - James Hargreaves

Power loom - Edmund Cartwright

Bessemer process (steel) - Henry Bessemer

Can opener - Ezra Warner

Philo Farnsworth - television
Pemberton - Coca-Cola

Bradham - Pepsi