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This lesson presents some of the laws of physics through the operation of the bicycle.
In this experiment, we convert a plastic bottle into a rocket.
When does echo form? Why does sound spread easier at night? What is the secret to a good...
In this lesson you will learn more about how sound propagates.
Can a candle be re-lit if the flame of the match does not even touch it?
Submarines submerge and surface by changing the average density of the hull.
This lesson is about the sound waves surrounding us.
This animation introduces the studies of astronomers and physicists whose works...