All Questions
Tagged with earth angular-momentum
59
questions
40
votes
6
answers
9k
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How can the Earth keep spinning with a liquid core?
In regards to the 'conservation of angular momentum' being the explanation of why celestial objects spin...
If you fill a ball or any other container with a liquid and try to spin it, you will not ...
- 409
39
votes
7
answers
14k
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Why don't we feel the subtle speed change of Earth's elliptical orbit?
Earth's orbit is a slight ellipse, so to conserve momentum its speed increases when it is closest to the Sun. If the speed changes there is an acceleration. If there is an acceleration there is a ...
- 2,878
24
votes
4
answers
5k
views
Why is climate change triggering faster rotation?
On July the 29th 2022, the Earth finished its rotation about 1.5 milliseconds earlier than the entire 24 hours. Scientists link this to climate change, saying that a possible reason could be due to ...
- 1,638
17
votes
3
answers
4k
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Do mankind and manmade activities/constructions have any effect on the rotation of the Earth?
We walk or ride on our vehicles to our destinations daily. Does our movement have any effect on the rotation of the earth according to Newton's law? What will be the effect if we move all the peoples ...
- 2,251
15
votes
3
answers
1k
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Does the earth’s rotational angular velocity change?
This is what is written in The Feynman Lectures on Physics, Vol. 1 (ch.5)
We now believe that, for various reasons, some days are longer than others, some days are shorter, and on the average the ...
- 8,230
15
votes
4
answers
3k
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What would happen if the Earth was in a polar orbit around the sun?
This is a question that has been bugging me for a while now, I was wondering about the effects on the Earth if it was in different orbital situations to what it is now, and one of those was what would ...
- 161
14
votes
3
answers
4k
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Could an asteroid land slowly on Earth's surface?
The concept in my mind is that an asteroid is on a vector similar to Earth's, but slightly slower (e.g., 50kmh slower). As Earth passes it, it enters the atmosphere at a sharp angle, and since Earth ...
- 421
8
votes
2
answers
4k
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Huge buildings affect Earth's rotation?
Does constructing huge buildings affect the rotation of the Earth, similar to skater whose angular rotation increases when her arms are closed comparatively than open?
- 415
8
votes
3
answers
13k
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How long was a day at the creation of Earth?
Since the earth is slowing its rotation, and as far as I know, each day is 1 second longer every about 1.5 years, how long was an earth day near the formation of earth (4.5 billion years ago)?
I ...
- 181
8
votes
4
answers
12k
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Effect on length of day as the polar ice caps melt
If the polar ice caps of the Earth melt, how will the length of the day be affected?
- 247
7
votes
5
answers
38k
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What is the scientific reason for the inclination of earth's rotation axis?
This titled position of the earths axis is known as inclination of the earths axis.
The earth's rotation axis makes an angle of about 66.5 degrees with the plane of its orbit around the sun, or about ...
- 259
7
votes
1
answer
671
views
How exactly does the Moon stabilizes Earth axial tilt?
There are many references regarding the Moon stabilizing the tilt of the Earth's rotational axis. I'd like to see some support for that claim, more than non-sequitur handwaving "Moon causes tides,...
- 1,951
6
votes
1
answer
453
views
How much effort would be required to fix the Earth's rotation?
Given that the earth's rotation has been slowing down by very slight amounts over time, forcing us to introduce leap seconds and so forth into our clocks and calendars, I would like to ask if this ...
- 216
4
votes
4
answers
2k
views
Angular momentum power plant on Earth
If tidal power plants are slowing down Earth's rotation then is it theoretically possible to build a power plant that would drain energy from Earth's angular momentum (thus slowing down it's rotation)?...
- 1,928
4
votes
1
answer
950
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Energy needed to stop the Earth's inner core ---and its effects?
As you will most possibly know, a misreading of this paper by the media caused kind of a "panic" about how the Earth's inner core had stopped or even reversed its rotation and its "...
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