Correction for the speed of The Speed of Sound
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How fast is 260 feet per minute?
It's about one-two-hundred-fiftieth as fast as The Speed of Sound
The speed of The Speed of Sound is about 67,500 feet per minute.
(in dry air at 20°C)
The speed of sound in dry air at 20°C (68°F) is 67,500 feet per minute. Air is a relatively poor acoustic conductor, however, as sound will travel at speeds of between 295,000 feet per minute to 307,000 feet per minute in water, depending on its salinity.