Inventions What Elisha Otis invented? Hydraulic Crane The brake used in modern elevators Jet Engine Turbine Hydraulic Crane The brake used in modern elevators Jet Engine Turbine ANSWER DOWNLOAD EXAMIANS APP
Inventions Who came up with the idea for INSTANT MASHED POTATO? S. Tuberosum E. Asselbergs K. Edwards W. Raleigh S. Tuberosum E. Asselbergs K. Edwards W. Raleigh ANSWER DOWNLOAD EXAMIANS APP
Inventions Who synthesized the first wholly artificial gene? Benjamin Franklin Hargobind Khorana J.J. Thompson Meghnad Saha Benjamin Franklin Hargobind Khorana J.J. Thompson Meghnad Saha ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the toothbrush invented? 1790 1765 1742 1770 1790 1765 1742 1770 ANSWER DOWNLOAD EXAMIANS APP
Inventions Which scientist discovered the radioactive element radium? Albert Einstein Marie Curie Isaac Newton Benjamin Franklin Albert Einstein Marie Curie Isaac Newton Benjamin Franklin ANSWER DOWNLOAD EXAMIANS APP
Inventions What Enrico Fermi invented? Nuclear reactor X ray machine Cyclotron Betatron Nuclear reactor X ray machine Cyclotron Betatron ANSWER DOWNLOAD EXAMIANS APP
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