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Which experiments can use solid plastic bottles?

by:SMART DRAGON     2020-05-31

optical phenomenon: through the plastic bottle of water, the words on the book will become larger, which is the refraction of light. Put a proper amount of milk powder into a water-filled plastic bottle, tighten the bottle cap, shake it well, pass the light emitted by the laser pen through the bottom of the bottle, and shoot it against the bottle cap. You will see the light column that travels straight along the line, and the effect is obvious.

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