Tag Archive for: speed of sound
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Direct Echo-Based Measurement of the Speed of Sound
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Figure 1: Distance vs. time a firecracker report echoed off of a building at different distances on both a cold and a warm day.The speed of sound…
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Can I Send a Signal Faster than Light by Pushing a Rigid Rod?
One common proposal for achieving faster than light communication is to use a long perfectly rigid object and mechanically send signals to the other end…