📝 Multiple Choice Question
General-science
Who is famous for discovering the random movement of microscopic particles in a fluid, now known as Brownian motion?
A
Watson
B
Robert Brown
C
Anton van Leeuwenhoek
D
Robert Hook
Explanation
In 1827, botanist Robert Brown observed pollen grains moving randomly in water under a microscope. This phenomenon, later explained by Albert Einstein as evidence of atoms, is known as Brownian motion.
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