The invention of the common mechanical office device known as the copy mimeograph machine was patented by whom? MCQ with Answer and Explanation
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Question #1
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The invention of the carbon-14 dating technique to determine the age of organic materials was developed by whom?
Correct Answer: Option A
Explanation:
Willard Libby led the team that developed radiocarbon dating in 1949, winning the 1960 Nobel Prize in Chemistry.
Willard Libby led the team that developed radiocarbon dating in 1949, winning the 1960 Nobel Prize in Chemistry.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #2
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Who discovered that the chemical element Argon exists as an unreactive atmospheric component, launching the noble gas group?
Correct Answer: Option A
Explanation:
Rayleigh and Ramsay isolated argon in 1894 by removing all oxygen, nitrogen, and carbon dioxide from air samples.
Rayleigh and Ramsay isolated argon in 1894 by removing all oxygen, nitrogen, and carbon dioxide from air samples.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #3
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Who discovered circulation of blood in the human body?
Correct Answer: Option C
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
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