What Is Sound, and Why Does It Travel Faster in Water? copertina

What Is Sound, and Why Does It Travel Faster in Water?

What Is Sound, and Why Does It Travel Faster in Water?

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Sound is really just a wave of tiny pushes rippling through stuff — air, water, even solid steel. But why does that wave zip through water almost five times faster than through air? The answer comes down to how tightly packed the molecules are and how quickly they can bump into their neighbors. Along the way, everyday analogies — from dominoes to swimming pools — make the invisible physics of sound waves something you can almost feel.
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