All Questions
Tagged with earth thermodynamics
51
questions
48
votes
9
answers
21k
views
Why is air not sucked off the Earth?
People said outside earth is a vacuum. But the air does not get sucked from the Earth's surface. Some said it is due to gravity and some said the speed of air molecules are not high enough to escape....
- 609
45
votes
10
answers
12k
views
Why can't the Earth's core melt the whole planet?
Earth core temperature is range between 4,400° Celsius (7,952°
Fahrenheit) to about 6,000° Celsius (10,800° Fahrenheit).
Source
Why can't the Earth's core melt the whole planet? In other words, what ...
- 567
36
votes
3
answers
16k
views
Why does the Earth cool at night time?
I do understand that open water and open ground cools by the means of convection — lower air takes the heat and goes up, where it cools.
But why does the Earth lose energy and where does it go? Does ...
- 481
20
votes
5
answers
3k
views
Does the Moon's core still contain significant heat?
On earth, using earth-sheltering techniques can significantly reduce the temperature fluctuations on a structure. Would the same statement be true as well on the Moon? Does the Moon's core still ...
Walter
17
votes
3
answers
3k
views
Is the total energy of earth changing with time?
Many years ego, Earth was hot. Over time, it has lost energy and has become colder. Is it now in equilibrium or is its total energy changing?
- 4,194
14
votes
6
answers
4k
views
Is nuclear power desireable in the long term, given the fact that it's an unnatural heat input to our planet? [closed]
I've been reflecting on whether we want nuclear at all in the long term (compared to renewables like wind, solar, and hydro). There's a certain amount of heat (energy) entering our planet and leaving ...
- 313
10
votes
1
answer
6k
views
How much does increased world population contribute to global warming?
In 1974 there where 4 billion people on earth. Now in 2013 we passed 7 billion people. So the world population is nearly doubled in 40 years. Every living human being also haves a body temperature of $...
- 203
9
votes
7
answers
5k
views
How does heat actually stay kept in the carbon molecules in the atmosphere? [duplicate]
We have all learned that the earth is getting heat up because of the CO2 and CO molecules absorbing heat. However, how is heat actually kept in those molecules. When photons heat them up, their ...
9
votes
4
answers
9k
views
Why doesn't the heat of the Earth's core diffuse to the surface?
The Earth has a crust, mantle, outer core and the inner core with each one getting hotter than the next. How come, over millions and millions of years, the heat that is at the center of the Earth hasn'...
- 309
6
votes
2
answers
7k
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?
- 165
6
votes
1
answer
1k
views
Measuring temperature at a distance
http://www.youtube.com/watch?v=gKYrXHZwtPw
In this video it is explained that Land Skin Temperature (LST) are measured by NASA's Aqua and Terra satellites.
It seems it works by collecting the ...
- 1,159
6
votes
4
answers
182
views
Bulk flow of air in a long tube between Antarctica and Australia?
I have a 5km diameter clear plastic tube which is open at each end and runs from the center of Antarctica to Lake Eyre in Australia. The tube is on the ground where it can be and at sea level on the ...
- 2,421
5
votes
3
answers
2k
views
If the Earth left the solar system for interstellar space. How long would it take for atmosphere to freeze?
If the Earth left the solar system for some reason. Assuming its moving at the same velocity it's currently exhibiting. How long would it take for the atmosphere to freeze. Would we get methane clouds ...
Justin list
5
votes
6
answers
5k
views
Why it is colder in mountains, at high altitudes?
The conventional answer is to say that "lower temperature follows from lower pressure because temperature is average molecular energy (average speed)". For instance "Temperature is a measure of ...
- 1,013
4
votes
2
answers
1k
views
Average surface temperature of Earth [duplicate]
I had a question in my school exam.
Will the average surface temperature of the Earth be lower or higher, if there was no atmosphere?
Now, the answer expected is "The avg temp will be lower, because ...
- 251