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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.

Earth is the 3rd planet from the Sun, one of the 4 terrestrial planets (i.e., "rocky planets") in the solar system (the remaining 4 planets are gas giants). It is currently the only known planet to harbor life.

Different fields of science study Earth, including,

There is also an Earth Science Stack Exchange.

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Proofs that Earth is not flat?

Well, I do not believe that Earth is flat, but I met some conspirationistas believing that all physics we learn in school is twisted, all the Earth's pictures from space are photoshopped by NASA, etc, etc. So those guys wanted to put a satellite…
Sam
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Do other planets have an effect in Earth's rotation and revolution?

Do Earth's rotation/revolution is regulated by other planets (and vice versa) in any way? How?
Biju
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Different Rotation of Earth. Consequences?

What if the rotation of the Earth about its own axis was in the direction North-South (instead of East-West) while the rotation about the sun remained as it is now? What would the consequences be other than "time zones" (meaning exposure to…
MSIS
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what would my path look like using the sun for navigation

A theoretical question which thought about instead of writing my C++ code. I know it is poorly defined however I am now intrigued as to the answer! If you got into a boat in the middle of the sea before sunrise, and as the sun cam up sailed directly…
Stephen Murby
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Before and During the sunrise

Last year we went to a remote place near forest to a site with dark and clear skies. I captured two photos of the East horizon before and during the sunrise. I have questions regarding the effects you can see here. In the above image you can see…
Curious
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Munroe-Question: Moving the Earth to Reduce Solar Radiation?

Rep Gohmert asked one of the funnier questions in Congress about a year ago --- could the US forestry service move the orbit of the earth? In the best tradition of Randall Munroe's "What If?", has anyone worked out how much energy it would require…
ivo Welch
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What path would it produce if someone kept on going after their shadow (on Earth)?

Imagine someone is standing on the surface of the Earth (let's assume it is completely flat) and they start going exactly in the direction their shadow is cast (that is, exactly opposite of where the Sun is in the sky). What kind of path that would…
Benjamin Márkus
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Why is there a rainbow after the rain?

Usually rainbows are present after the rain. But if a rainbow is caused by diffraction of rain droplets, shouldn't rainbows be present during the rain, not after?
TanMath
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Why earth looks always flat when it is round

Yes, we can easily explain to all intelligent adults why the Earth looks flat, when it is actually round. But my question is, how can we explain this fact, that the Earth is round, to those people who will not accept new data, which contradicts…
Ravinder Singh Rawat
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If we could dig up earth's core (inner, outer), would it expand/ density decrease under room pressure/ vaccuum?

This is for science fiction writing purposes. The earth's core is super dense compared to surface materials, partially due to the crazy pressure there. I wonder if we could engineer the whole earth, and dig it up, would it occupy more space for the…
Ng Xin Zhao
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Why does the earth revolve around the sun?

I want to know why the Earth rotates around the sun. Why doesn't it rotate around the moon or a different star?
Sarah M
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How far do we need to go from earth to view it as a complete sphere?

How far do we need to go from earth so that our view makes us believe that the earth is just a sphere without any terrains and depressions? It must look like a completely uniform spherical land mass.
the_random_guy42
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Prove the Earth is round without vision

I have been wondering for a while.There dozens of topics which prove the earth is round. But they all heavily rely on the vision of the person you proof it to. Is there any way, not at all relying on vision, to proof the earth is round?
Mark Smit
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rare High altitude balloon footage (highest peak before balloon burst 23034 metres) without fishe-eye lens

Why does Earth appear flat so HIGH UP in the sky? https://www.youtube.com/watch?v=jDs2T2PgxNM
Pascal Swartjes
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Correctly intrepreting displayed physical data and models

It is obvious that the Earth is not flat. We know this from looking at NASA pictures other experiments. But, mathematically speaking, the Earth, along with other celestial bodies, are measured with mathematics and graphs that display information…
Genesis Productions okc
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