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Can a candle be re-lit if the flame of the match does not even touch it?
The length of the metal frameworks of bridges change when the temperature changes.
Observe what happens when making sounds with shorter and shorter pieces of the same straw.
Let's use musical instruments and our vocal cords as sources of sound.
A spectacular optical illusion using a chain of closed rings.
Experience the relationship between pitch and frequency through measurements.
The three important laws describing planetary motion were formulated by Johannes Kepler.
Simple harmonic motion can be considered to be the one-dimensional projection of uniform...