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That depends on what you call "small".

-- Gamma rays are smaller than x-rays, but

-- x-rays are smaller than ultraviolet rays, but

-- ultraviolet rays are smaller than blue light waves, but

-- blue light waves are smaller than green, yellow, and orange light waves, but

-- any of those are smaller than red light waves, but

-- red light waves are smaller than heat waves, but

-- heat waves are smaller than radio waves.

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12y ago

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