Inventions Which scientist discovered the radioactive element radium? Isaac Newton Marie Curie Benjamin Franklin Albert Einstein Isaac Newton Marie Curie Benjamin Franklin Albert Einstein ANSWER DOWNLOAD EXAMIANS APP
Inventions What Frank Whittle invented? Sonar Ethyl gasoline Radar Jet propulsion Sonar Ethyl gasoline Radar Jet propulsion ANSWER DOWNLOAD EXAMIANS APP
Inventions What J. B. Dunlop invented? Rubber boot Pneumatic rubber tire Automobile wheel rim Model airplanes Rubber boot Pneumatic rubber tire Automobile wheel rim Model airplanes ANSWER DOWNLOAD EXAMIANS APP
Inventions William Frederick is credited with the invention of the modern frisbee in the mid 1950's. In 1957 the Wham-O Company bought his idea and the rest is history. They named the toy after William Frisbie who was a ________? Owner of a pizza parlor Student at Yale Ceramic plate designer Pie maker Owner of a pizza parlor Student at Yale Ceramic plate designer Pie maker ANSWER DOWNLOAD EXAMIANS APP
Inventions When were blue jeans invented? 1900s 1860s 1870s 1850s 1900s 1860s 1870s 1850s ANSWER DOWNLOAD EXAMIANS APP
Inventions What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes? Giuseppe Mercalli Hiram Walker Charles Richter Joshua Rumble Giuseppe Mercalli Hiram Walker Charles Richter Joshua Rumble ANSWER DOWNLOAD EXAMIANS APP
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