http://www.nasa.gov/feature/goddard/nas ... tra-secondNASA Explains Why June 30 Will Get Extra Second
The day will officially be a bit longer than usual on Tuesday, June 30, 2015, because an extra second, or “leap” second, will be added.
“Earth’s rotation is gradually slowing down a bit, so leap seconds are a way to account for that,” said Daniel MacMillan of NASA’s Goddard Space Flight Center in Greenbelt, Maryland.
Strictly speaking, a day lasts 86,400 seconds. That is the case, according to the time standard that people use in their daily lives – Coordinated Universal Time, or UTC. UTC is “atomic time” – the duration of one second is based on extremely predictable electromagnetic transitions in atoms of cesium. These transitions are so reliable that the cesium clock is accurate to one second in 1,400,000 years.
However, the mean solar day – the average length of a day, based on how long it takes Earth to rotate – is about 86,400.002 seconds long. That’s because Earth’s rotation is gradually slowing down a bit, due to a kind of braking force caused by the gravitational tug of war between Earth, the moon and the sun. Scientists estimate that the mean solar day hasn’t been 86,400 seconds long since the year 1820 or so.
Some days, time seems to just stand still
Some days, time seems to just stand still
Tomorrow being one:
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MajGenl.Meade
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Re: Some days, time seems to just stand still
I bet that means Gob gets extra time off work...
For Christianity, by identifying truth with faith, must teach-and, properly understood, does teach-that any interference with the truth is immoral. A Christian with faith has nothing to fear from the facts
Re: Some days, time seems to just stand still
But what if it happens while he's actually working?! He might suffer a psychotic break from the stress of all that extra work!
Okay... There's all kinds of things wrong with what you just said.
Re: Some days, time seems to just stand still
I'm taking that to the Union, we should strike.
“If you trust in yourself, and believe in your dreams, and follow your star. . . you'll still get beaten by people who spent their time working hard and learning things and weren't so lazy.”
Re: Some days, time seems to just stand still
Some days, time seems to just stand still
(That was such a fat pitch, it was almost embarrassing to swing at it...
)
Re: Some days, time seems to just stand still
Yes, so quiet you could hear a cricket chirp.
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MajGenl.Meade
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Re: Some days, time seems to just stand still
Damn, I think I missed it.
For Christianity, by identifying truth with faith, must teach-and, properly understood, does teach-that any interference with the truth is immoral. A Christian with faith has nothing to fear from the facts
Re: Some days, time seems to just stand still
It would help if they told us when the extra second will be added. Will it be in the morning, night or middle of day?
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oldr_n_wsr
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Re: Some days, time seems to just stand still
I heard that Google is adding fractions of a second throughout the day so as not to have it happen all at once.Joe Guy wrote:It would help if they told us when the extra second will be added. Will it be in the morning, night or middle of day?