Who was the first person to observe a sign of molecular motion?

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Question 36 of 45 23 ✓ 66 Sounds are made when objects in air. What one word completes the sentence? Enter your answer

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What is the magnifying power of an astronomical telescope using a reflecting mirror whose radius of curvature is 5.5 mm and an eyepiece whose focal length is 2.9 cmcm? Follow the sign conventions.

Who was the first person to observe a sign of molecular motion?