Posts Tagged ‘magic trick’

A marine creature’s magic trick explained

Tiny sea sapphires’ iridescence, created by a regular array of thin transparent crystal plates, is also the secret of their “disappearance.” Credit: Weizmann Institute of Science Tiny ocean creatures known as sea sapphires perform a sort of magic trick as they swim: One second they appear in splendid iridescent shades of blue, purple or green, […]

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