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If you aimed a laser at the moon, don't you need to caluculate the time it takes for the light to travel atthat distance and project where the moon would be at that time. You wouldn't aim the laser directly at the moon, would you?
Yes sound does not travel in a vaccum, however if a tree falls in the forest and no one is there, it doesn't make a sound either.
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Jim
1983 944n/a
2003 Mercedes CLK 500 - totaled. Sanwiched on the Kennedy Expressway
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