Who discovered that the chemical element Silicon is isolated from silica sands via reduction with potassium metal? MCQ with Answer and Explanation
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Question #1
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Who discovered that certain types of organic crystals display liquid fluid mobility while maintaining optical structural alignment, founding Liquid Crystals?
Correct Answer: Option A
Explanation:
Austrian botanist Reinitzer discovered the distinct dual melting profile of cholesteryl benzoate in 1888.
Austrian botanist Reinitzer discovered the distinct dual melting profile of cholesteryl benzoate in 1888.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #2
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Who discovered the phenomenon of radioactivity in 1896?
Correct Answer: Option B
Explanation:
Henri Becquerel discovered radioactivity in 1896 while working with uranium salts, for which he shared the 1903 Nobel Prize in Physics.
Henri Becquerel discovered radioactivity in 1896 while working with uranium salts, for which he shared the 1903 Nobel Prize in Physics.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #3
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Who invented the global positioning system (GPS) structural architecture alongside Ivan Getting and Bradford Parkinson?
Correct Answer: Option D
Explanation:
Gladys West's mathematical modeling of the Earth's geoid shape was critical to developing the calculations behind accurate GPS tracking.
Gladys West's mathematical modeling of the Earth's geoid shape was critical to developing the calculations behind accurate GPS tracking.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
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