Gas used in lights

Argon is used to fill the space in most light bulbs. Neon is used in fluorescent signs. Fluorescent lights are filled with mercury gas.

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The smallest transistor

The smallest transistor is 50-nanometres wide - roughly 1/2000 the width of a human hair.

Atomic clock accuracy

An atomic clock is accurate to within 1 second in 1,7 million years.

Peanuts in dynamite

Peanuts are one of the ingredients in dynamite.

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