Since the earth's rotation is slowing down (at a veeeery small rate), how long would it take for one earth day to be 25 hours?
2006-07-17 06:05:58 · 11 answers · asked by Anonymous in Science & Mathematics ➔ Earth Sciences & Geology
Yes, I really must know. It's imperative and in my nature.
2006-07-17 06:10:14 · update #1
This is basically impossible to calculate. The earth's rotation is slowing, but during historical times the rate of slowing has itself been slowing. That's because the slowing is the result of many factors, including weather and plate tectonics, that are impossible to predict.
There is evidence from geological studies that the earth's rotational period was 22 hours about 600 million years ago. On that basis, one might be able to say it would take another 300 million years or so for another hour to be tacked on. But that's a very rough guess.
2006-07-17 06:26:53 · answer #1 · answered by Keith P 7 · 1⤊ 0⤋
Kore, you have seen, from all the serious answers, that it will be a very long time before any measurable difference can even be detected. The term used for this kind of change is "geological time." The Earth was formed over a very long period, including the mountains and the seas. All this stuff continues to change, including the Earth's rate of rotation.
So, what is causing this slow-down.? Friction is a small part of it. A toy top spinning will eventually slow down due to the friction of the air and the surface it rides on. While Earth spins in the relative vacuum of space, it does spin within a turbulent atmosphere, thin as it is. Plus, space is not as empty as we normally think of it. All of this drag contributes to the change in rotation.
The biggest factor, however is the pull of the moon as it goes around the Earth. By itself its gravity contributes a lot, but it still is relatively minor to the forces working at keeping the planet spinning. Add to that, the moons gravitational pull on the fluid oceans of the Earth. The moon exerts enough pull to create tides that move around the world as we spin beneath it, and as the moon rotates around the Earth. These tides pull, and drag along the sea bottom and push against the continental land masses, adding, but by bit, to all the factors listed.
How long? Think in terms of millions of years.
2006-07-17 07:08:06 · answer #2 · answered by Vince M 7 · 0⤊ 0⤋
Sometime between 2009 and 2012. Because of the coming pole shift the planetary adjustment will cause the days to increase in some areas and the nights to decrease in others. At one point there will be 3 days of light.
2006-07-17 09:24:04 · answer #3 · answered by sallymarlyn 2 · 0⤊ 0⤋
The Hebrew word for day may be considered only as a results of the indisputable fact that is in english... it ought to point an afternoon. it must be like even as an old guy says in my day... it ought to point "age" like a lengthy era of time like the day of the dinosaurs, a metaphorical day. The creations did not only ensue in a unmarried era both day one god separated mild and darkish, day and nighttime, in day 4 god changed into nonetheless operating in this it says he changed into only then engaged on the Luminaries, moon, stars, solar... so how ought to it were a customary 24 hour day for the first 3 days if the solar wasn't round till day 4, and the moon wasn't there both is there even a rotation to the earth yet? it would not say... what changed into there to revolve round before day 4? GOD has been in existence always he wasn't in a hurry time isn't some thing to him. there is nothig that announces god did not creat a huge bang of skill, the bible says he's ample in dynamic skill. it under no circumstances says he snapped his finger and the earth had water, snap flora, snap animals snap people, he may have spent years only on the buzzing chook ya comprehend? we seem at this from a human time table too typically. evaluate that this changed into written by using moses (who wasn't there) maximum probably he changed into given this imaginative and prescient in a dream, probably from the view factor of a guy in the international staring at issues spread. so he defined it in techniques and words comprehensible to him.
2016-10-14 21:38:44 · answer #4 · answered by jakiela 4 · 0⤊ 0⤋
Right now it's slowing down. Sometimes it speeds up. It sort of depends on a lot of the other things floating around in space. I've always wondered though, if all six billion of us started running and driving in the same direction, could we noticeably slow it down or speed it up?
2006-07-17 06:09:29 · answer #5 · answered by Beardog 7 · 0⤊ 0⤋
You know, some times when I am hanging out with my mother-in-law, it seems like it's at least a 25-hour day.
2006-07-17 06:10:08 · answer #6 · answered by Anonymous · 0⤊ 0⤋
August 1st
2006-07-17 06:06:55 · answer #7 · answered by ? 3 · 0⤊ 0⤋
A very long time. Longer than you'll be alive, and most likely not for many generations after you.
2006-07-17 06:07:10 · answer #8 · answered by Anonymous · 0⤊ 0⤋
do you REALLY need to know that, it will not be in your great great great grandchildrens babies lifetime
it's longer now anyway, that's why we need an extra day every now and again
2006-07-17 06:09:15 · answer #9 · answered by Anonymous · 0⤊ 0⤋
Always fixed.
2006-07-17 06:07:07 · answer #10 · answered by Dr M 5 · 0⤊ 0⤋