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How come we can hear around corners but we can’t see around corners?

If sound is just airwaves that hit our ears, and light is waves too, then how come we can hear around corners but we can’t see around corners?
Rhea from Hertfordshire (age 5-14)

Answer

We can see round corners — the process is called diffraction and is visible using a microscope. But how much the waves bend depends on their wavelength, and light waves have much shorter wavelengths than sound waves, so they only bend a little bit.

John Gribbin

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