Inventions What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes? Giuseppe Mercalli Charles Richter Joshua Rumble Hiram Walker Giuseppe Mercalli Charles Richter Joshua Rumble Hiram Walker ANSWER DOWNLOAD EXAMIANS APP
Inventions What charge card, developed in 1950, was the first to be accepted nationally in the US? Diner's Club Visa Discover MasterCharge Diner's Club Visa Discover MasterCharge 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? Telephone Book Calendar Notice Board Notepad Telephone Book Calendar Notice Board Notepad ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the toothbrush invented? 1742 1765 1790 1770 1742 1765 1790 1770 ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Bifocal Lens? Alfred B. Nobel Thomas Alva Edison Rudolf Diesel Benjamin Franklin Alfred B. Nobel Thomas Alva Edison Rudolf Diesel Benjamin Franklin ANSWER DOWNLOAD EXAMIANS APP
Inventions This African-American woman physical therapist worked with soldiers disabled in World War II. She invented a device that helped the disabled to eat by delivering food through a tube to a mouthpiece. Marjorie Joyner Beulah Henry Mae Jamison Bessie Blount Marjorie Joyner Beulah Henry Mae Jamison Bessie Blount ANSWER DOWNLOAD EXAMIANS APP
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