Inventions When was the toothbrush invented? 1765 1790 1742 1770 1765 1790 1742 1770 ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Bicycle? Leo H Baekeland Kirkpatrick Macmillan Evangelista Torricelli Karl Benz Leo H Baekeland Kirkpatrick Macmillan Evangelista Torricelli Karl Benz ANSWER DOWNLOAD EXAMIANS APP
Inventions What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes? Hiram Walker Giuseppe Mercalli Charles Richter Joshua Rumble Hiram Walker Giuseppe Mercalli Charles Richter Joshua Rumble ANSWER DOWNLOAD EXAMIANS APP
Inventions What J. B. Dunlop invented? Model airplanes Pneumatic rubber tire Rubber boot Automobile wheel rim Model airplanes Pneumatic rubber tire Rubber boot Automobile wheel rim ANSWER DOWNLOAD EXAMIANS APP
Inventions What type of system did Paul Nipkow, John Baird, and Charles Jenkins all invent? Electricity Television Telephone Early Warning Electricity Television Telephone Early Warning ANSWER DOWNLOAD EXAMIANS APP
Inventions For what does the world owe Almon Strowger a debt of gratitude? Parking Meters Automatic Telephone Exchanges Vending Machines Traffic Lights Parking Meters Automatic Telephone Exchanges Vending Machines Traffic Lights ANSWER DOWNLOAD EXAMIANS APP
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