Who discovered the specific mathematical formula detailing gas density variation relative to molecular weight, known as the diffusion law? MCQ with Answer and Explanation
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Question #1
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The discovery of the cellular structure of nervous tissue using a specialized silver staining technique was developed by whom?
Correct Answer: Option B
Explanation:
Ramón y Cajal used Golgi's staining method to prove that neurons are separate individual cells, sharing the 1906 Nobel Prize.
Ramón y Cajal used Golgi's staining method to prove that neurons are separate individual cells, sharing the 1906 Nobel Prize.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #2
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The invention of the mechanical printing press was dramatically optimized by Gutenberg using an alloy of which metals?
Correct Answer: Option A
Explanation:
Gutenberg formulated a specialized type metal alloy that melted at low temperatures but resisted high casting pressures.
Gutenberg formulated a specialized type metal alloy that melted at low temperatures but resisted high casting pressures.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #3
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The discovery of the charge-coupled device (CCD), which replaces film with digital sensor pixels in cameras, was made by whom?
Correct Answer: Option C
Explanation:
Boyle and Smith invented the CCD at Bell Labs in 1969, fundamentally altering digital imaging, which won them a 2009 Nobel Prize.
Boyle and Smith invented the CCD at Bell Labs in 1969, fundamentally altering digital imaging, which won them a 2009 Nobel Prize.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
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