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People across town heard a window-rattling sonic boom from the February 19 fireball here, but we heard nothing. Why?

Dan Baum, Pendleton, Oregon
Interactions between sound waves can produce regions where the waves are either enhanced or eliminated. Such effects are a major area of study in connection with sonic booms from supersonic aircraft. Wave interactions can lead to amplification so strong a sonic boom can produce damage on the ground, such as broken windows.

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