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Physics Quest
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Matter and heat

Archimedes' crown

Was the king's crown pure gold? Hang it on a balance against a gold bar and lower both into water to find out.

Taught in the lesson🏛️ Ancient ideas: Greece and China · The Story of Physics
🧊Float or sink🔭Powers of ten🫧Solid, liquid, gas🎈Gas in a box🎲Entropy and the arrow of time