Famous Inventors Questions and Answers
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How well do you know the famous inventors of the world? The tests below will test your knowledge when it comes to famous inventors and what they invented.

Who invented the synthetic diamond?


A. Tracy Beaker
B. John Hays Hammond, Jr
C. Richard Hammond
D. Tracy Hall

Answer & Explanation:

Answer: Option D



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Who invented the flush toilet?


A. Victor Hasselblad
B. William Robert Grove
C. John Harington
D. John Harrison

Answer & Explanation:

Answer: Option C



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Who invented the liquid crystal display (LCD)?


A. Ibn al-Haytham
B. George H. Heilmeier
C. Ibrahim El-Naiz
D. Nai Puuta

Answer & Explanation:

Answer: Option B



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Who invented radio telegraphy, electromagnetic radiation?


A. Gunvor Electrer
B. Heinrich Hertz
C. Hoyving Bosch
D. Muhammad Husayn

Answer & Explanation:

Answer: Option B



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Who invented the postage stamp?


A. Rowland Hill
B. Kelly Nedward
C. Preston Okter
D. Quam Hollista

Answer & Explanation:

Answer: Option A



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