Post by Mink on Dec 12, 2008 22:37:49 GMT -5
Just a bit of science trivia:
www.msnbc.msn.com/id/28117620/
What will you do with that second??
www.msnbc.msn.com/id/28117620/
On Dec. 31 this year, your day will be just a second longer.
Like the more well-known time adjustment, the leap year, a "leap second" is tacked on to clocks every so often to keep them correct.
Earth's trip around the sun — our year with all its seasons — is about 365.2422 days long, which we round to 365 to keep things simpler. But every four years, we add 0.2422 x 4 days (that's about one day) at the end of the month of February (extending it from 28 to 29 days) to fix the calendar.
Like the more well-known time adjustment, the leap year, a "leap second" is tacked on to clocks every so often to keep them correct.
Earth's trip around the sun — our year with all its seasons — is about 365.2422 days long, which we round to 365 to keep things simpler. But every four years, we add 0.2422 x 4 days (that's about one day) at the end of the month of February (extending it from 28 to 29 days) to fix the calendar.
What will you do with that second??
