Tagged Questions
3
votes
1answer
72 views
Can Earth's Magnetic Field Create Electricity?
If the earth has a magnetic field, can it, in theory, be run through a conductive metal coil to create electricity?
2
votes
1answer
54 views
What is the Earth's magnetic field in space?
I have looked around a bit, but haven't found a simple answer. At an altitude between 100-1000 km,
Is the magnetic field B still around $\sim 10^{-5}\ T$? Is there a simple equation that would provide ...
1
vote
1answer
45 views
What is the most optimal earth's axial tilt in terms of variation of seasons?
What is the most optimal earth's axial tilt in terms of variation of seasons?
What would be optimal axial tilt for earth that life would exist and change of seasons would be at minimal level?
6
votes
4answers
240 views
Why is the water on the surface of the Earth?
What makes the water stay on the surface? Why the earth does not absorb the water in it?
-6
votes
1answer
55 views
Energy flows in the core also responsible for another of the planet’s unique [closed]
Energy flows in the core also responsible for
another of the planet’s unique features: a
strong magnetic field. Scientists believe that
the earth has had a magnetic field for at
least 3.5 billion ...
1
vote
2answers
148 views
3
votes
1answer
142 views
What if the earth's core goes cold?
What effects would occur if the earth's core goes cold? Would the planet stay liveable after this happens?
0
votes
0answers
74 views
Phosphorus Cycle [closed]
In the phosphorus cycle, phosphorus is deposited on the ocean and river floors. Then a process of "geological uplifting" returns the phosphorus into rocks. Can anyone explain this process of ...
3
votes
2answers
136 views
The earth's magnetic field
This might sound like a silly question. Is it possible for the earth's magnetic field to actually destroy or harm earth? (implosion, crushing etc.)
1
vote
1answer
126 views
What equations/constants were used to calculate the Kármán Line for Earth?
I am interested in how the original value of ~100 km was calculated for the Kármán line of earth. What equations and constants would need to be used to reproduce this value?
Note: By constants, ...
1
vote
4answers
676 views
Is the earth expanding?
I recently saw this video on youtube:
http://www.youtube.com/watch?v=oJfBSc6e7QQ
and I don't know what to make of it. It seems as if the theory has enough evidence to be correct but where would all ...
-3
votes
1answer
127 views
How can the Earth's day increase and its rotation slow down at the same time? [closed]
I heard that the Earth rotation is slowing down, but I also heard the Earth's length of day is increasing.
Does the two theories go together or conflict with each other?
3
votes
3answers
260 views
Ozone Hole in the South Pole
Perhaps this should be a chemistry question, but it seems to have physics attributes. There's a perennial ozone "hole" around the south pole created by destruction from Cl based chemicals like CFCs. ...
