Quote:
Originally Posted by pmulcahy11b
Sound also travels further at night. Why, I don't know, but it does. (If anyone knows why, please post it.)
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It could be as simple as the ambient temperature being lower at night. Sound travels better in denser air, and cooler air is more dense than warmer air.
Also, there is often less noise at night so short, sharp sounds would tend to be more noticeable.