Waves hitting an island will bend and eventually close in on the "shadow" of the island. That is diffraction. Light demonstrates wave properties through both refraction and diffraction. Prisms and lenses, and the distortion looking through a glass of water, are examples of refraction.
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Waves hitting an island will bend and eventually close in on the "shadow" of the island. That is diffraction. Light demonstrates wave properties through both refraction and diffraction. Prisms and lenses, and the distortion looking through a glass of water, are examples of refraction.