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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Earth magnetic field, WMM/IGRF
I am studying about World Magnetic Model (WMM) and International Geomagnetic Reference Field (IGRF) models. It is well known that, to a first approximation, earth magnetic field is a field of dipole. ...
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How can the distance to the Sun from the Earth be determined without relying on any prior baseline measurements?
I am asking if there is a way that a man could determine the distance from the earth to the sun without already having a baseline distance or dimension measurement to begin with, and without having ...
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At which colatitude $\theta$ is the error between $\vec g_{eff}$ and $\vec g$ maximum? [closed]
Suppose a plumb bob hangs without swinging, then the string defines the
effective direction of gravity. Suppose you are holding the bob on the surface of the
earth at colatitude $\theta$, where $\...
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Clear explanation of acceleration of the earth
The Earth rotates with an angular velocity of $\omega$.
My questions:
Is the angular acceleration of the Earth equal to $0$ because angular velocity is stable?
What is the difference between angular ...
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Will the Earth ever stop rotating?
Will the Earth ever stop rotating or will it rotate for the entire lifetime of the universe (assuming that the Sun didn't exist, so the Earth would survive to the Red Giant phase)?
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Since water can evaporate at any temperature above absolute 0, would the water cycle still be possible even without the Sun?
Since water can evaporate at any temperature (or even sublimate at less than 0°C, although at a very low rate: Why does water not evaporate in below 0 degrees?), could there be a water cycle if there ...
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Does the earth’s rotational angular velocity change?
This is what is written in The Feynman Lectures on Physics, Vol. 1 (ch.5)
We now believe that, for various reasons, some days are longer than others, some days are shorter, and on the average the ...
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Is the diameter of earth's north pole similar to the south? (Think axis of rotation+ axis of precession)
Earth is an oblate spheroid, not a sphere, since it's rotation around the axis causes it to bulge along the equator.
Is it teally a symetric oblate spheroid though, or also not even that?
To explain: ...
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Why is the time difference of equal tide states not 50 minute if one lunar day is 24 hour and 50 minutes?
I do understand that tidal forces are caused by de difference of gravitational force between both opposite points of the earth where a bulge is formed.
I do understand that a lunar day is ruffle 24 ...
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Are there any types of winds or waves that are produced just by Earth's rotation?
Are there any types of wind or waves caused/produced only and exclusively by Earth's rotation? Not influenced by Earth rotation, but produced solely by it?
In the case of waves, are Rossby waves 1 and ...
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Difference between Earth's surface area seen from ISS and the theoretical area if light refraction is neglected
What is the difference between Earth's surface area seen from ISS and the theoretical area if light refraction is neglected? I watched a video telling that it is not possible to know why a great ...
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If the Earth and the Moon were smaller, would moon tides be more or less intense?
If the Earth and Moon were smaller (and everything on them too, but keeping the same average density and the same "relative" distances, I mean... the same proportions!), would the tides ...
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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?"...
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Why is climate change triggering faster rotation?
On July the 29th 2022, the Earth finished its rotation about 1.5 milliseconds earlier than the entire 24 hours. Scientists link this to climate change, saying that a possible reason could be due to ...
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How would it be possible to measure the day's length for the past?
According to this recent article [1], Earth spins faster now than in the past, switching its trend.
Besides the main focus of the above-mentioned article, what captured my attention was the knowledge ...
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