Question

multiple - choice question
how did einstein \discover\ atoms?
by feeling air molecules on his skin.
by studying another scientists observation about pollen moving for no apparent reason.
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Explanation:

Einstein's work on Brownian motion, which is the random motion of pollen grains in a fluid, provided evidence for the existence of atoms and molecules. He studied the observations of such seemingly - random pollen movement. Feeling air molecules on the skin is not how he discovered atoms.

Answer:

B. By studying another scientist's observation about pollen moving for no apparent reason.