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
Inventions Which scientist discovered the radioactive element radium? Albert Einstein Benjamin Franklin Marie Curie Isaac Newton Albert Einstein Benjamin Franklin Marie Curie Isaac Newton ANSWER DOWNLOAD EXAMIANS APP
Inventions For over 500 years, paper was only available and sold as single sheets. In 1902, an inventive Australian used half size sheets of paper, a bit of glue and cardboard to create the what? Notice Board Telephone Book Calendar Notepad Notice Board Telephone Book Calendar Notepad ANSWER DOWNLOAD EXAMIANS APP
Inventions What item of apparel was invented by Ellery Chun, a Hawaiian clothing merchant, in 1931? Muumuu Aloha shirt Capri pants String bikini Muumuu Aloha shirt Capri pants String bikini ANSWER DOWNLOAD EXAMIANS APP
Inventions What Frank Whittle invented? Sonar Jet propulsion Ethyl gasoline Radar Sonar Jet propulsion Ethyl gasoline Radar ANSWER DOWNLOAD EXAMIANS APP
Inventions What drink was invented by Charles Leiper Grigg in 1929? Pepsi Yoo-Hoo Hawaiian Punch 7-Up Pepsi Yoo-Hoo Hawaiian Punch 7-Up ANSWER DOWNLOAD EXAMIANS APP
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