Could solar power be used to cool the Earth? | AskScience Blog

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Tuesday, June 30, 2020

Could solar power be used to cool the Earth?

Could solar power be used to cool the Earth?


Could solar power be used to cool the Earth?

Posted: 30 Jun 2020 05:56 AM PDT

Probably a dumb question from a tired brain, but is there a certain (astronomical) number of solar power panels that could convert the Sun's heat energy to electrical energy enough to reduce the planet's rising temperature?

EDIT: Thanks for the responses! For clarification I know the Second Law makes it impossible to use converted electrical energy for cooling without increasing total entropic heat in the atmosphere, just wondering about the hypothetical effects behind storing that electrical energy and not using it.

submitted by /u/teddylevinson
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If I had a pound of Plutonium and put it on the ground out in the open, how far would I have to be away from it to avoid getting a lethal dose of radiation ?

Posted: 29 Jun 2020 06:26 PM PDT

Just as there’s a “sonic boom” by going faster than the speed of sound. Would something similar happen if we moved faster than the speed of light?

Posted: 30 Jun 2020 05:27 AM PDT

Where do files encrypted with password, like .rar files, store the password?

Posted: 30 Jun 2020 01:00 AM PDT

Sometimes I happen to download a .rar file protected by password, and when I view its content with software like WinRar there does not seem to be any extra file inside. How does the operating system know that the file is encrypted and what the password is?

submitted by /u/naiad_es
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How does a virus have such diverse effects on people? Some having no symptoms and other getting extremely sick or killed?

Posted: 29 Jun 2020 05:11 PM PDT

Well, how does it work? Take the current disease. There are asymptomatic carriers that never knew they had a disease. And then there are some that are going on ventilators. What makes one resin need a ventilator, and another person have no symptoms of any kind?

And it's not just this disease. The flu gave me pneumonia this year, but my wife barely had a runny nose.

submitted by /u/HuxTales
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Are modern computers considered Turing machines?

Posted: 30 Jun 2020 02:59 AM PDT

Are there any species of turtle that raise their young?

Posted: 29 Jun 2020 09:16 PM PDT

How was SARS able to enter the body?

Posted: 30 Jun 2020 05:21 AM PDT

When outside and hearing a gun shot from 100m away - do i hear the lower frequencies at the same time as the higher frequencies ?

Posted: 30 Jun 2020 01:26 AM PDT

What makes bats immune to so many viruses that they carry within them?

Posted: 30 Jun 2020 12:36 AM PDT

How exactly does and explosion or grenade kill someone?

Posted: 30 Jun 2020 02:57 AM PDT

What do viruses do if the immune system doesn't respond?

Posted: 29 Jun 2020 02:16 PM PDT

For example, the flu. Most of the symptoms (fever, cough, vomiting, etc) are caused by our immune response. Are any caused by something that the virus itself does? What would these viruses do if our immune systems just ignored them?

submitted by /u/hardward123
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Why is salt so abundant on earth?

Posted: 29 Jun 2020 03:49 PM PDT

Why is there so much salt in the oceans and underground?

submitted by /u/themanofeverywhere
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[Forensic Pathology] Is there any way of knowing whether a murder victim was raped post mortem or ante mortem?

Posted: 29 Jun 2020 07:12 AM PDT

Caspian Sea: sea or lake?

Posted: 29 Jun 2020 02:01 PM PDT

What happens to a lizard's tail once a lizard has shed it?

Posted: 29 Jun 2020 12:10 AM PDT

Everyone knows that a lizard sheds it's tail when in extreme danger. But my question is, what happens to the tail? I know it still moves after removal, and that it will keeps moving for up to 30min. But does the tail decompose, or does it remain as if it was still attatched?

submitted by /u/whatever0117
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