Inventions When was the first elevator built? 1785 1739 1760 1743 1785 1739 1760 1743 ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the toothbrush invented? 1790 1742 1765 1770 1790 1742 1765 1770 ANSWER DOWNLOAD EXAMIANS APP
Inventions What now-ubiquitous device was invented by Zenith engineer Eugene Polley in 1955? Remote control VCR Calculator Microwave oven Remote control VCR Calculator Microwave oven ANSWER DOWNLOAD EXAMIANS APP
Inventions Ralph Samuelson was only 18 when he invented this sporting item in 1922. What was that? Hang glider Water skis Golf tee Motorboat Hang glider Water skis Golf tee Motorboat ANSWER DOWNLOAD EXAMIANS APP
Inventions When was barb wire patented? 1895 1840 1874 1900 1895 1840 1874 1900 ANSWER DOWNLOAD EXAMIANS APP
Inventions Which scientist discovered the radioactive element radium? Albert Einstein Benjamin Franklin Isaac Newton Marie Curie Albert Einstein Benjamin Franklin Isaac Newton Marie Curie ANSWER DOWNLOAD EXAMIANS APP
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