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by netcraft
3311 days ago
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vibrations from traffic, seismic events and even thunderstorms can be detected. If the mirrors or lasers move, it makes a difference. The sensitivity of these instruments are such that its akin to measuring the difference in the width of a human hair in the distance between here and alpha centauri. On the actual scale theyre measuring the slightest movement of the a fraction of a width of a proton. |
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