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Many important scientific discoveries were discovered in play or by accident. What are the story themes?
Watt found that when water boils, steam will open the lid of the pot, which inspired him to invent the steam engine.

Russian Mendeleev threw away the cards, rearranged them, rearranged them, and found them in playing cards.

The periodic law of elements is introduced.

Archimedes found that the bathtub was full of water and buoyancy when taking a bath, and put forward Archimedes theorem.

Newton was walking in the garden when an apple hit his head and he discovered the gravity of the earth.