Who invented the acoustic phonograph, capturing audio playback on tin foil cylinders? 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 B
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 circulation of blood in the human body?
Correct Answer: Option D
Explanation:
William Harvey was an English physician who correctly described the systemic circulation and properties of blood being pumped to the brain and body by the heart.
William Harvey was an English physician who correctly described the systemic circulation and properties of blood being pumped to the brain and body by the heart.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #3
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Who discovered that atomic structure configurations present discrete filling layers regulated by spin exclusion principles?
Correct Answer: Option D
Explanation:
The Pauli Exclusion Principle states that no two electrons in an atom can occupy the exact same quantum state simultaneously.
The Pauli Exclusion Principle states that no two electrons in an atom can occupy the exact same quantum state simultaneously.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
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