Questions tagged [core]
For questions about the Earth's core. The center of the Earth is primarily iron-nickel.
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Is there exchange of energy between the solar wind and Earth's core?
As of May 2024, Earth was just hit by a quite strong solar storm, lighting up the skies with auroras even in areas as far from the polar regions as Ushuaia, Coimbra or Northern California.
We often ...
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Why does Ni and Fe alloy that forms the outer core produce earth magnetic field?
Earth magnetic field is produced by the convection currents of Ni and Fe in the outer core, but why should the movement of Fe and Ni produce a magnetic field? Fe and Ni form a metallic compound, made ...
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Is Earth's core displaced (abnormally changed its position)?
Found one publication https://images.astronet.ru/pubd/2008/09/28/0001230856/195-213.pdf "Deformations of the Earth's mantle due to core displacements". In page 196. there are words "...
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iron of the core of earth [duplicate]
@ralhecman:so why scientists say that the core of the earth is melted Iron, how that happens? if they also say that iron is the result of a dead start, and what about the other planets in the solar ...
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If the universe (and our galaxy) has about twice as many oxygen atoms as carbon ones, why does Earth have 300 times as many oxygen atoms as carbon?
A (relatively) recent 'Sky & Telescope' magazine feature story mentioned how little carbon the Earth has, and how some scientists' models predict we should somehow have even less....
So I looked ...
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Terraforming and maintaining a habitable atmosphere on Mars
Since Mars core does not function like Earths does, would a planetary core "kick-starting and maintaining" device be needed in order to produce a magnetosphere required to preserve the ...
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How does the rotation of Earth's inner core influence climate?
In the recent paper published in Nature that sugests a 60-70 years inner core rotation cycle, it is said:
Interestingly, the same multidecadal periodicity is also well observed
in the Earth’s climate ...
user28185
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Does the high pressure inside the Earth's core contribute to its high temperature?
The explanations for why the Earth's core is hot I found on the internet included:
leftover energy from the Earth's formation
radioactivity of the elements inside the core
friction between the core ...
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Is there superionic ice in the earth? and how did it get there?
I recently researched about Superionic Ice which basically is Water under so much pressure and heat that it turns into a black hot ice. I read this article about it too. I found out Superionic ice ...
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Why is the inner core about 85% iron and the rest (mostly) nickel, while the outer is roughly 80%/20%, if nickel is denser than iron?
The question is basically the title. I really cannot think of a good reason. Is it a mystery to geologists?
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How much does earth's core temperature affect earth's global surface temperature
Has anyone managed to read the (latest) full IPCC-report and do you know whether they have taken into account the Earth's core temperature in their models. Besides the IPCC-report, do we know how much ...
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Can changing magnetic fields or a solidifying core cause the Earth to rotate faster?
I had a small quarrel about this on the physics site. A question was asked about what could cause a change in the rotation speed of the Earth. In addition to the answers given I proposed the ...
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What would happen if the inner core bulged and moved a tiny bit?
The inner core is solid only because of the very high pressure of the outer core and mantle . Say, if the inner core moved a teeny tiny bit would some of it liquify and melt? Or does it stay solid?
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Can there be ice in the core because of pressure?
Because there is so much pressure in the earth's core, the inner core is solid but what happens if you manage to add some water in the inner core or near it. Does the pressure make the water solid or ...
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How much role does radioactivity play in making Earth geologically active [duplicate]
A hot molten core is important for making the Earth geologically active. I believe most of the heat is from the time of the planet formation, and the high pressures due to everything pushing down to ...
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