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Panel allows ‘leap second’ to keep clocks aligned with Earth’s rotation
The leap second lives on — for another three years, at least. Added to official world clocks on 24 occasions since 1972, this skip in time keeps clocks synchronized to the Earth’s rotation. Without it, the apparent time — say, when the sun is at high noon — would drift earlier and earlier, disagreeing with the time shown on official atomic clocks. The ever-so-slight slowing of the Earth’s rotation is to blame.
The leap second lives on — for another three years, at least. Added to official world clocks on 24 occasions since 1972, this skip in time keeps clocks synchronized to the Earth’s rotation. Without it, the apparent time — say, when the sun is at high noon — would drift earlier and earlier, disagreeing with the time shown on official atomic clocks. The ever-so-slight slowing of the Earth’s rotation is to blame.
Source: Washington Post
Posted on: Tuesday, Jan 24, 2012, 8:19am
Views: 20
Posted on: Tuesday, Jan 24, 2012, 8:19am
Views: 20
