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- Question
What Thomas Davenport invented?
Options- A. Screw propellor
- B. Electric streetcar
- C. Chesterfield
- D. Sleeping (railway) car
- Correct Answer
- Electric streetcar
ExplanationInvented in 1834. - 1. Who invented Gramophone?
Options- A. Michael Faraday
- B. Fahrenheit
- C. Sir Alexander Graham Bell
- D. Thomas Alva Edison Discuss
- 2. Who invented the BALLPOINT PEN?
Options- A. Biro Brothers
- B. Waterman Brothers
- C. Bicc Brothers
- D. Write Brothers Discuss
- 3. The initials JCB on earth-moving equipment are those of the founder of the company that makes it. What is his name?
Options- A. John Christopher Ballantyne
- B. Joseph Cyril Bamford
- C. John Christopher Baxter
- D. Jack Croxford Baker Discuss
- 4. What invention caused many deaths while testing it?
Options- A. Dynamite
- B. Ladders
- C. Race cars
- D. Parachute Discuss
- 5. Who developed the idea of Crop Rotation?
Options- A. Potato Peterson
- B. Turnip Townsend
- C. Cabbage Carlson
- D. Swede Svenson Discuss
- 6. This English inventor is known as the 'Father of Computing.'
Options- A. Philo Farnsworth
- B. J. Presper Eckert
- C. John Mauchly
- D. Charles Babbage Discuss
- 7. 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?
Options- A. Robert Oppenheimer
- B. James B. Conant
- C. Leslie R. Groves
- D. Vannevar Bush Discuss
- 8. What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes?
Options- A. Charles Richter
- B. Hiram Walker
- C. Giuseppe Mercalli
- D. Joshua Rumble Discuss
- 9. In which year was MIDI introduced?
Options- A. 1987
- B. 1983
- C. 1973
- D. 1977 Discuss
- 10. Who invented Gunpowder?
Options- A. G. Ferdinand Von Zeppelin
- B. Sir Frank Whittle
- C. Roger Bacon
- D. Leo H Baekeland Discuss
Inventions problems
Search Results
Correct Answer: Thomas Alva Edison
Correct Answer: Biro Brothers
Explanation:
The Hungarian brothers, Laszlo and George Biro, made the first ball point pen in 1894. It followed the first workable fountain pen which was invented by L.E. Waterman in 1884.
Correct Answer: Joseph Cyril Bamford
Explanation:
Joseph Cyril Bamford founded the company that makes these iconic machines in 1945, in a 12ft X 15ft garage in Staffordshire.
Correct Answer: Parachute
Explanation:
Many people who tried to test the first parachutes died by jumping from high places. One attempt was a parachute hat, but the inventor broke his neck while testing it. The first successful parachute was tested from a hot air balloon in 1797, in France, by Jacques Garnerin.
Correct Answer: Turnip Townsend
Explanation:
Viscount Charles 'Turnip' Townsend developed this revolutionary concept.
Correct Answer: Charles Babbage
Explanation:
Mauchly and Eckert invented the ENIAC computer. Farnsworth was a pioneer of early television.
Correct Answer: Robert Oppenheimer
Explanation:
Leslie R. Groves, however, was the military head of the project and the overall supremo, while Robert Oppenheimer was the scientific director. The world's first atomic bomb was exploded in the New Mexico desert on July 16, 1945.
Correct Answer: Charles Richter
Explanation:
Richter was born on an Ohio farm in 1900. He died in 1985.
Correct Answer: 1983
Correct Answer: Roger Bacon
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