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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Does earth revolution speed slowing down because of small drag from space is not empty?
I read that universe is not empty, in least dense parts has 1000 atoms per cubic meter, does that slow down earth speed?
Why these atoms are there, why they are not attracted by surrounding gravity ...
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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 ...
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Could Earth's Zircon (used in geological dating) have formed in extraterrestrial events before the Earth was formed?
This is a follow up question asked and answered (Radio-dating and the age of the earth)
The answer was given that the mineral Zircon is formed under high pressures and temperatures. How do we know, ...
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Are there torques affecting Earth?
Since the time it takes for the earth to complete one rotation about itself (i.e., the time we call "day") is not constant, then the angular speed is also not constant, that is, there is a ...
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How does the excess GPE of a mountain cause its base to melt?
Weisskopf suggested that the Gravitational Potential Energy (GPE) of a vertical column of mountain rock of mass $m$ must be less than the latent heat of fusion $L_f$ of the rock, i.e. $$mgh<η L_fm ...
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Escape velocity from a rotating body depending on latitude
So the earth's escape velocity since the earth is rotating is dependent on the latitude. As stated in Wikipedia here: For example, as the Earth's rotational velocity is 465 m/s at the equator, a ...
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Magnetic Field of Earth and Turbulence of plasma
We generally know that plasma turbulence creates magnetic field (here, I have assumed that it happens through the dynamo effect). it is also affected by magnetic fields. Is it possible that plasma ...
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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 ...
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Which gravitational differences we would feel if the sun disappeared?
I would like to start by stating that I'm not a physicist, I'm purely a curious individual.
I've been speculating about the differences the loss of the sun's gravitational field would have on us and ...
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Orbital obliquity of the Earth
Consider that we have all the orbital parameters that characterize the Earth. How would one calculate the orbital obliquity of Earth?
One could argue that since the rotation of Earth doesn't change ...
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Can gravity of planets besides Sun and Moon affect tides on Earth?
The tides in some places on Earth are over 50 feet. If the gravity from Venus had a ten thousandth the affect of the Sun and Moon on a 50 foot tide it would make a difference of one twentieth of an ...
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Electricity through water
If you're sat in a body of water through with an electric current runs, can you survive if you create an earth wire to lead the electricity away from you?
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How is it that underground nuclear tests create huge caverns without violating conservation of mass?
If a multi-megaton underground nuclear test 500m down in deep hard rock detonates, we’re told that it will leave a rather radioactive cavern in its wake (I’m just using Gnome as an example, I’m not ...
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Would a compass on its side point at the ground?
From a point just north of the equator, A straight line to the Magnetic North would be through the earth. If a compass was turned on it's side, would the north pointing arrow point toward the ground ...
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Is it possible to measure Earth's rotational acceleration with a home experiment?
Is there an experiment that is achievable using materials you could order online to measure Earth's rotational acceleration at home?
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