Inventions What invention was first installed at a Hartford, Connecticut bank in 1889? Pay telephone Burglar alarm Automatic teller machine Time-lock safe Pay telephone Burglar alarm Automatic teller machine Time-lock safe ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the toothbrush invented? 1742 1790 1770 1765 1742 1790 1770 1765 ANSWER DOWNLOAD EXAMIANS APP
Inventions This African-American woman physical therapist worked with soldiers disabled in World War II. She invented a device that helped the disabled to eat by delivering food through a tube to a mouthpiece. Mae Jamison Marjorie Joyner Beulah Henry Bessie Blount Mae Jamison Marjorie Joyner Beulah Henry Bessie Blount 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? James B. Conant Vannevar Bush Robert Oppenheimer Leslie R. Groves James B. Conant Vannevar Bush Robert Oppenheimer Leslie R. Groves ANSWER DOWNLOAD EXAMIANS APP
Inventions What James Watt invented? Rotary steam engine Hot air balloon Steam boat Diving bell Rotary steam engine Hot air balloon Steam boat Diving bell ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the AEEE (now the IEEE) founded? 1950s 1850s 1930s 1880s 1950s 1850s 1930s 1880s ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS