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 Until Victorian times, chocolate was thought of as a drink. When did the first chocolate bar appear? 1828 1825 There is no sure date 1831 1828 1825 There is no sure date 1831 ANSWER DOWNLOAD EXAMIANS APP
Inventions Benjamin Franklin was a prolific inventor. He invented the lightning rod, the Franklin stove, studied electricity, discovered the Gulf Stream, started the first library, and on and on. Among his many other inventions, what musical instrument did he invent? Harmonium Banjo Clarinet Oboe Harmonium Banjo Clarinet Oboe ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Bifocal Lens? Alfred B. Nobel Benjamin Franklin Thomas Alva Edison Rudolf Diesel Alfred B. Nobel Benjamin Franklin Thomas Alva Edison Rudolf Diesel ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented the Seed Drill? Woodie Guthrie Arlo Guthrie Thomas Hines Jethro Tull Woodie Guthrie Arlo Guthrie Thomas Hines Jethro Tull ANSWER DOWNLOAD EXAMIANS APP
Inventions What Frank Whittle invented? Sonar Ethyl gasoline Jet propulsion Radar Sonar Ethyl gasoline Jet propulsion Radar ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS