All Questions
Tagged with earth atmospheric-science
87
questions
0
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88
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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 ...
0
votes
1
answer
46
views
Is this Volcanic or Impact winter management proposal right? [closed]
In case of a volcanic winter where a VEI 8 volcano releases large amounts of SO2 and H2S into the stratosphere making it react with OH and H2O to form sulfuric acid (H2SO4) wich would prohibit most of ...
3
votes
1
answer
53
views
Does a planet's "equatorial bulge" induce any kind of motions or currents in the atmosphere?
Rotating planets, like the Earth, are not perfect spheres but are instead oblates. This affects both the crust and the atmosphere, creating a bulge in the equator 1.
I was wondering if there are ...
2
votes
1
answer
77
views
How large would the earth have to be to retain hydrogen?
How high would the earth's escape velocity have to be to retain hydrogen or helium over geological timescales?
8
votes
2
answers
589
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Air pressure at ground level at the equator and the poles
At the equator at sea level you are about 17 miles higher up than at the poles ie 17 miles further from the center of the earth. Yet the air is not the same as it would be 17 miles up at a higher ...
4
votes
2
answers
535
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Have rocket float into upper atmosphere via balloon [duplicate]
I'm assuming a majority of the fuel used in a rocket to say get to the moon is involved in escaping earth's gravity.
So why can't we create a smaller weighing rocket, with less fuel to carry and ...
16
votes
4
answers
4k
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Does dusk really remain for a shorter period of time at the equator?
It is said that the dusk remains for shorter time at equator than the poles. Because, the equator rotates faster than poles. But it is also true that time is the same in every latitude, and if it's ...
5
votes
2
answers
421
views
How much solar irradiance do clouds block from reaching the Earth's surface?
Consider a fixed point in the Milankovich cycle and the solar cycle, a fixed Earth-Sun distance, and a fixed horizontal location on Earth, and assume that the Sun is at the zenith for that location. ...
3
votes
1
answer
194
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Using the sky and ground as a battery
Since there is a voltage difference between the ground and sky, shouldn't I theoretically be able to light a bulb by connecting one terminal to the ground and raising the other one to the sky (via a ...
4
votes
1
answer
212
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Why is ozone $\rm O_3$ in the Earth's upper atmosphere?
If you look at the density table, you will see that ozone has the highest density among other gases, so why is it in the upper layer of the atmosphere, in the picture I schematically drew how the ...
3
votes
2
answers
222
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Why doesn' t the sky look blue from outer space? [duplicate]
The sky looks blue because blue sunlight is scattered all over the atmosphere. Doesn't the same take place in the other direction? From Earth to the sky? So the atmosphere would look blue in outer ...
2
votes
5
answers
161
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Paradox about greenhouse effect?
I know about the greenhouse effect, but isn't earth receiving the same amount of energy but getting hotter than with that same amount of energy?
My guess is that earth reflects less light, but then ...
-1
votes
1
answer
101
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Would everyone die? [duplicate]
When you open the door of your spaceship, the oxygen disappears from the ship.
So if I put a very very long tube from the Earth to space,
would all the oxygen from the Earth automatically aspire into ...
0
votes
3
answers
312
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Doesn't Increase of Potential Temperature with Height contradict Adiabatic Nature of Processes within Troposphere?
According to my education as a sailplane pilot our troposphere is in good approximation subject to adiabatic processes.
Using adiabatic equations of (nearly ideal) ...
1
vote
1
answer
64
views
How much the Earth atmosphere oscillates due to Moon tidal force and does this produces winds?
As there is the tidal force of the Moon exerted on the Ocean water I supose there must be some force acting to the Earth's atmosphere. So when the atmosphere starts falling down as the Moon is ...
3
votes
2
answers
60
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Why don't hovercrafts move West relative to the Earth [duplicate]
Suppose that there is a hovercraft floating a few centimetres above the Earth's surface. As it is disconnected from the Earth, which is spinning from West to East, shouldn't it appear to move East to ...
5
votes
1
answer
936
views
Where do the gases such as hydrogen and helium end up after leaving the earths atmosphere?
I've heard that gases like hydrogen and helium leak out of the earth's gravity a little by little.
but where are they going? where do they end up after leaving earth's pull?
would the sun pull them ...
2
votes
1
answer
1k
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Why can atmospheric re-entry heat up the air into plasma?
The adiabatic processes of re-entering earth from a spaceship, creates intense heat. Heat in the range of 1700-2000 degrees Celsius.
I've read the the temperature in the air molecules generate a ...
0
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0
answers
28
views
Generating power with a "straw" to space... Is it possible? [duplicate]
Imagine you have a straw in a glass of water. If you put a turbine inside it somehow and move the glass, pour water in and out of it etc, you would see the water level rise and fall, and the turbine ...
0
votes
0
answers
22
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How do thunderstorms generate ionospheric potential?
In all the explanations of how global electric circuit on Earth works, I've always encountered statements like "thunderstorms generate ionospheric potential" (which is about 250 kV).
E.g. here: https:...
2
votes
1
answer
256
views
How has the Earth's air pressure varied over geological time scales?
It is estimated that the Earth is losing about $5 \times 10^7 kg$ per year. Most of it due to hydrogen loss. I suppose this has an impact on the pressure of the atmosphere in general.
Thus, I am ...
-1
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2
answers
2k
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Does a helicopter that simply hovers remain in the same spot on earth? [duplicate]
Ignoring statistical variation in wind, will a helicopter that only applies force perpendicular to a perfectly sphere earth remain in the exact same spot relative to the earth?
I am arguing with ...
0
votes
1
answer
690
views
What would happen to the water bodies if gravity ceased to exist on Earth?
If water stopped flowing (it would stop flowing downwards from mountains and all)
then, would it start rising upwards? If it floats on the space ( I say space because there'd not be any atmosphere) ...
2
votes
3
answers
350
views
Is there a difference between the red sky in the morning and in the evening?
It certainly has a different feeling to it, but
does the temperature or earth's rotation or the clouds
or anything else really make it two different physical
phenomena or at least different colors?
...
3
votes
1
answer
1k
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How much does temperature affect the time of sunrise?
Please forgive me if this is a dumb question, or if my understanding of basic physics is wrong. Please feel free to correct me.
As I understand it, if the Earth didn't have any atmosphere, then the ...
6
votes
2
answers
258
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Blocking of infrared radiation from the sun by $\rm CO_2$ [duplicate]
Why is the infrared heat from the sun not prevented from entering the earth's atmosphere by $\rm CO_2$ to the same extent that it is prevented from leaving the Earth's atmosphere?
0
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1
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98
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How do we not feel the speed of rotation of Earth?
Many people say, we don't feel the speed because everything around us including the air moves with the same speed, but I am not satisfied with the explanation. If it was so, shouldn't we feel a huge ...
22
votes
2
answers
9k
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What is the scientific explanation for radio waves bending around the Earth?
The experiment
This experiment is documented in a documentary called Convex Earth. The exact location the following information is taken from starts at 14:25.
High frequency directional antennas are ...
4
votes
1
answer
5k
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Why microwaves used in satellite communications?
I've been reading recently that:-
EM waves with a shorter wavelength have shorter range in air/other medium
Microwaves are used in satellite communications over radio waves.
This doesn't make sense ...
3
votes
1
answer
223
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Are North aurora and South aurora produced by positive and negative particles respectively?
Are North aurora and South aurora produced by positive and negative particles respectively?