Inventions Who invented Gramophone? Thomas Alva Edison Michael Faraday Fahrenheit Sir Alexander Graham Bell Thomas Alva Edison Michael Faraday Fahrenheit Sir Alexander Graham Bell ANSWER DOWNLOAD EXAMIANS APP
Inventions The Manhattan Project was started by President Roosevelt in 1942 to ensure that the U.S. beat the Germans in developing a nuclear bomb. Whom did Roosevelt appoint as scientific head the Manhattan Project? Robert Oppenheimer James B. Conant Vannevar Bush Leslie R. Groves Robert Oppenheimer James B. Conant Vannevar Bush Leslie R. Groves ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Dynamite? Thomas Alva Edison Alfred B. Nobel Sir Alexander Graham Bell Benjamin Franklin Thomas Alva Edison Alfred B. Nobel Sir Alexander Graham Bell Benjamin Franklin ANSWER DOWNLOAD EXAMIANS APP
Inventions Which scientist discovered the radioactive element radium? Marie Curie Isaac Newton Albert Einstein Benjamin Franklin Marie Curie Isaac Newton Albert Einstein Benjamin Franklin ANSWER DOWNLOAD EXAMIANS APP
Inventions What item of apparel was invented by Ellery Chun, a Hawaiian clothing merchant, in 1931? String bikini Capri pants Muumuu Aloha shirt String bikini Capri pants Muumuu Aloha shirt ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the first elevator built? 1743 1785 1760 1739 1743 1785 1760 1739 ANSWER DOWNLOAD EXAMIANS APP
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