Questions tagged [earth]
Earth is the planet on which we live, the 3rd planet from the Sun. Questions using this tag should be about Earth the planet and not Earth-like planets nor earth, as in dirt or soil.
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Proof that the Earth rotates?
What is the proof, without leaving the Earth, and involving only basic physics, that the earth rotates around its axis?
By basic physics I mean the physics that the early physicists must've used to ...
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How fast is Earth moving through the universe?
As the galaxy is moving and the solar system orbiting the galaxy and the Earth orbiting the sun. So how fast is each object moving and what is the fastest we move at?
Do we even know how fast the ...
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A water pipe from sea level to beyond the atmosphere
If a pipe extended from just above the ocean floor to outside the atmosphere, would water be sucked up it by the vacuum beyond the atmosphere? If a hole was made in the pipe, above sea level, how ...
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Earth-Centered Inertial (ECI) reference frame as approximate inertial frame of reference
In many practical applications, one can consider the Earth-Centered Inertial (ECI) reference frame approximately as an inertial reference system, though strictly speaking, it is non-inertial.
Is ...
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Would a pipe from the surface to the Earth's exosphere suck all atmosphere to the space? [closed]
If I built a tube from Earth's surface to the exosphere, would all the air be sucked out to space?
If this pipe reached to a big planet, like Jupiter, would its gravity through the pipe suck our ...
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Huge buildings affect Earth's rotation?
Does constructing huge buildings affect the rotation of the Earth, similar to skater whose angular rotation increases when her arms are closed comparatively than open?
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The Earth is spinning, so why don't we jump and land on a different location?
I know there are similar questions on StackExchange but I think it is different and detailed.
The earth is spinning 465 meters/second so why don't we jump and land on a different location?
I googled ...
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Possible Safe Areas In a Solar Flare
Which part of the earth would be the safest in case of the major solar flare?
Will it be near equator or something like that?
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Does the Earth emit gravitational waves?
We know about Bohr's model and his vague postulate challenging Rutherford regarding discrete orbits and not emitting electromagnetic waves during this.
Extending this idea to our solar system, does ...
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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....
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Would it matter if the Earth rotated clockwise?
In the Futurama episode "That Darn Katz!" they save the world by rotating the Earth backwards saying it shouldn't matter (which direction Earth rotates). If Earth rotated clockwise and remained in it'...
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Can helium disappear from Earth?
Helium is lighter than air, so it should fly off from Earth.
Is it possible that in the future we will run out helium?
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How much energy does the Earth absorb when a gravitational wave passes through it?
I understand that gravitational waves pass quite freely through massive bodies.
Quoting http://www.ligo.org/science/GW-Potential.php:
Gravitational waves will change astronomy because the universe ...
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What would the effect be of a small black hole colliding with the earth?
If a small black hole (say about .1 mm radius or 1% of Earth's mass) came flying along at the speed of a comet or higher and impacted the earth, what would happen? Would it pass through the earth (and ...
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If there was a black hole on earth, what would it look like?
If an answer does exist, I'd love to hear it. I'm trying to incorporate a doomed earth story in something I'm writing, and the end of the world I'm going for is a black hole.
Let's say the black hole ...
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