All Questions
6
questions
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
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
0
votes
4
answers
1k
views
Why is Earth rotating along $x$(day and night) and $y$(tilt, causing seasons) axis, but not along the $z$ axis (taking $z$ as the axis along orbital)?
I have read this:
http://en.wikipedia.org/wiki/Axial_tilt
It is obvious that the rotation of any planet is a combination of rotation along three axis x,y,z.
Lets take the z axis as the one being the ...
- 29k
15
votes
4
answers
3k
views
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
0
votes
1
answer
2k
views
Why is the tilt of Earth in sync with an orbit around the Sun?
Is there any physical reason the changing tilt of Earth (which gives rise to our seasons: Spring, Summer, Autumn and Winter) is in sync with an orbit of the Sun (i.e. one year)?
It can't just be ...
- 137
7
votes
5
answers
38k
views
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