Inventions What African-American inventor received 5 patents in the field of shoemaking? Ernest Just Jan Ernst Matzeliger Elijah McCoy Lewis Latimer Ernest Just Jan Ernst Matzeliger Elijah McCoy Lewis Latimer ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the telegraph invented? 1870s 1810s 1840s 1890s 1870s 1810s 1840s 1890s ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented the battery? John Wilkinson Thomas Edison Alessandro Volta James Hargreaves John Wilkinson Thomas Edison Alessandro Volta James Hargreaves ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented the first controllable flying AEROPLANE (AIRPLANE)? Lidenbergh Brothers Wright Brothers West Brothers South Brothers Lidenbergh Brothers Wright Brothers West Brothers South Brothers ANSWER DOWNLOAD EXAMIANS APP
Inventions What treat was invented by 11-year-old Frank Epperson in 1905? Cracker Jacks Cotton candy Banana split Popsicle Cracker Jacks Cotton candy Banana split Popsicle 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
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