As we all know there is a huge molten core in the center of our planet. Lets take a look what will happen if this core starts to lose heat.  #### Magnetic Field <center></center> Worlds magnetic field protects earth from the explosions in the sun and it acts like a magnetic armor. Unlike what people thinking there aren't flames in the core of the earth. Instead it has a solid inner core of about 1200 km in diameter and a liquid inner core around it. The main raw material formed this inner core is **Iron**. Oh yeah and iron is a good conductive for electricity. The liquid part is subjected to the [Coriolis effect](https://en.wikipedia.org/wiki/Coriolis_force) because it is turning due to the movement of the earth.  #### What forms Magnetic Field ? <center></center> The iron is pretty conductive in plasma state , therefore because of this circular movement it also creates a circular current. As we can clearly understand from [Amper Law](https://en.wikipedia.org/wiki/Amp%C3%A8re%27s_circuital_law) this circular current creates a magnetic field in the direction of the rotation of the plasma. Since the divergence of the magnetic field is also zero, these magnetic field lines form a shield to make the magnetic field zero. However the energy of world core is decreasing according to magnetic induction equation. The magnetic field decreases because of difusion and in order to avoid this solid core transfers heat to liquid core to balance it. So there are 3 main things for a star or planet to create magnetic field. - It is necessary to rotate around itself so that coriolis effect can occur. - An electrically conductive fluid needs to be the inner core so that the magnetic field can be generated due to the coriolis effect and the rotation around it. - The solid inner core needs to feed liquid inner core to balance the magnetic field lost with diffusion. #### Doomsday Scenario <center></center> In this utopic scenario , if the inner solid core doesn't feed inner liquid core with head the magnetic field is going to fade in time and magnetic field won't shield us from sun. Obviously the entire life in the world is going to vanish. However if something goes wrong it will take 10.000 years to see it is deathly affect. However if we lose solid inner core and liquid inner core magnetic field will vanish instantly and we will probably die from radiation pretty fast #### Sources <hr> **Images** : [1](http://ichef.bbci.co.uk/wwfeatures/wm/live/1280_640/images/live/p0/2z/jf/p02zjf7m.jpg) , [2](https://thumb1.shutterstock.com/display_pic_with_logo/4069291/461613400/stock-vector-earth-structure-with-lithosphere-and-continental-crust-earth-mantle-and-earth-core-vector-461613400.jpg) - https://en.wikipedia.org/wiki/Coriolis_force - http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/magcur.html - https://en.wikipedia.org/wiki/Taylor_column <center></center> #### <center>Thanks for Reading & Hasta La Vista !</center>
author | steeminator3000 |
---|---|
permlink | doomsday-scenarios-world-core |
category | science |
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A recent study from British scientists said that the earth has a solid iron core the size of the planet Pluto, which has been formed since 1 - 1.5 billion years ago. According to the scientist, this research is very meaningful, because it will encourage people to consider revising the existing earth theory. Based on the direction and intensity of magnetic particles in ancient rocks, scientists at the University of Liverpool found the Earth's magnetic field increased dramatically in a period of 1 to 1.5 billion years ago. In addition, the giant iron balls (ie nuclei) in the center of the earth grew larger, and its diameter increased by one millimeter per year.
author | manah | ||||||
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permlink | re-steeminator3000-2017107t05416919z | ||||||
category | science | ||||||
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Oh that is just fascinating I didn't know the fact that it was expanding 1mm per year.
author | steeminator3000 |
---|---|
permlink | re-manah-re-steeminator3000-2017107t05416919z-20171006t180001417z |
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**Andy Biggin**, an expert on paleomagnetism (*study of ancient magnetic fields*) from the University of Liverpool, UK, who led the study related, said that from the observation of related data explain that the time of the formation of solid earth cores much earlier 500 million years from the results of previous theoretical speculation , after all, the rate of heat transfer of the earth's core to the surface (*earth*) is much slower than previously thought. In addition the influence of the core itself is also small.
author | manah | ||||||
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permlink | re-steeminator3000-2017107t12018200z | ||||||
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Thanks Steeminator! Very informative. I was wondering, have you posted about the effects of a shift of the poles yet?
author | roused |
---|---|
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Not really should I ? I'm pretty out of topic thesedays lol
author | steeminator3000 |
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You seem to really know your away around this topic. I'm totally a layman, but I've heard talk that the poles could shift -- I wonder what that would mean for us. So if you wanted to work your magic on that topic, I'd sure enjoy it. ## :-) @roused
author | roused |
---|---|
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