K-longs, as befits their name, live to the ripe old age of a hundred-millionth of a second.

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He accomplished this by using a strobe light to freeze the action of the bullet at a millionth of a second.

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The pulses are a mere ten-millionth of a second long.

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It can then release the light it absorbs in quick bursts that last a few femtoseconds each (with one femtosecond lasting one millionth of one billionth of a second), which is what ultrashort-pulse lasers do.

ENGADGET