Reels tagged #sound

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Physics

Sound travels four times faster in water

Water molecules sit closer together than air molecules, so vibrations pass along faster — about 1,480 m/s versus 343 m/s.

Animals

Elephants talk through the ground

Elephants produce infrasonic rumbles below human hearing that travel several kilometres through air and soil. They pick up the vibrations through their feet and trunk bones.

Animals

Wolf howls carry for 10 kilometres

In open terrain a howl can travel about 10 km, and packs use different pitches so a chorus of a few wolves sounds like many, exaggerating pack size to rivals.