All Questions
24
questions
1
vote
2
answers
95
views
Why is Coriolis effect responsible for COUNTER-clockwise rotation in the northern hemisphere?
Based on the form of the force, $F_\text{cor} = - 2m\mathbf{w}\times\mathbf{\dot r},$ I would expect a projected particle to rotate clockwise in the northern hemisphere. This is confirmed by the ...
- 163
0
votes
0
answers
44
views
Does earth revolution speed slowing down because of small drag from space is not empty?
I read that universe is not empty, in least dense parts has 1000 atoms per cubic meter, does that slow down earth speed?
Why these atoms are there, why they are not attracted by surrounding gravity ...
- 613
0
votes
1
answer
88
views
Has a heavier atmosphere and the relocation of oil around the Earth had a measurable effect on the rotation of the Earth?
I am wondering if the man-made carbon emissions put in the Earth's atmosphere over the past 100+ years, and also the relocation of oil around the Earth over this same time period, has had any ...
- 478
3
votes
1
answer
505
views
Are there torques affecting Earth?
Since the time it takes for the earth to complete one rotation about itself (i.e., the time we call "day") is not constant, then the angular speed is also not constant, that is, there is a ...
- 135
4
votes
1
answer
950
views
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 "...
- 49
15
votes
3
answers
1k
views
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
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
1
vote
1
answer
81
views
What's responsible for the earth to rotate and for the objects on it to rotate with it? [duplicate]
Three questions arose to me:
The first is what is responsible for the earth spinning? Is this just newton's first law in action - having been formed out of the material in the cluster of clouds after ...
- 111
1
vote
1
answer
76
views
Will angular velocity of earth be Affected By this? [duplicate]
If all the humans, animals, and all other beings came together to North Pole of earth, Will it affect the angular velocity Of earth in any means?
- 452
1
vote
1
answer
82
views
Earth's unimpeded rotation for billions of years [duplicate]
My nephew (7th grade) has stumped me with this question.
If I spin a top, it eventually stops, because of friction, air
resistance etc. How come the Earth has been spinning non-stop for 4.5
Billion ...
- 113
2
votes
1
answer
271
views
Why does the rotation axis of the Earth wobble over time?
I've learned recently that the rotation axis of Earth (axial tilt or obliquity) oscillates between 22.1 and 24.5 degrees.
I would like to understand why does that happen.
Having a basic understanding ...
- 151
1
vote
4
answers
516
views
Can we stop the Earth from spinning?
When we walk on the ground, we push the ground backward and hence the ground pushes us forward and we change our position. The effect of our force on the Earth is very minute (literally negligible) ...
- 8,230
1
vote
1
answer
84
views
Variance of earth's rotational speed due to tidal effects
I recently watched a video that explained how the length of the day was impacted by where the Earth was at in its orbit around the Sun. Consider a "day" for a point on Earth the period from when the ...
- 111
0
votes
3
answers
42
views
Could traffic acceleration/deceleration change the rotation of Earth? [duplicate]
For example at a stop light where multiple cars and trucks are accelerating at the same time all the torque from all the vehicles.
-3
votes
1
answer
77
views
Could enough people spin Earth backwards faster than they could run? [duplicate]
So, consider the theoretical situation in which the earth is no longer spinning, and we want to spin it up by running in the opposite direction (Yes, this question was inspired by the Nike commercial)....
- 101