How Much Energy does the Earth Receive from the Sun

 
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Lightning
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Post by Lightning » Wed. Nov. 24, 2021 5:58 pm

eceive

One one-billionth of the Sun's total energy output actually reaches the Earth. Of all the energy that does reach Earth, slightly less than 34 percent is reflected back to space by clouds. The Earth itself reflects another 66 percent back to space.
True that I'm showing my real geek colors here but...
I've had a stout Captain n Coke and I thought this would be a great conversation starter... and to think that the coal that we burn is stored sunshine from millions of years ago from the process of photosynthesis.. it's freaking amazing!! And said stored sunshine from millions of years ago is released to keep us warm.

That "slightly less" part in the above quote is the energy that is being used and/or being stored by natural occurrences..


 
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Post by carlherrnstein » Wed. Nov. 24, 2021 6:50 pm

Keep in mind the sun puts out far more energy than just visible light. It puts out every frequency of the electromagnetic spectrum and magnetic fields and particals. One theory I have heard about Jupiter's "extra" heat is magnetic induction from the sun.

 
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Post by Lightning » Wed. Nov. 24, 2021 6:55 pm

Right on man.. we receive infrared, visible and ultra Violet radiation along with other radiated particles. Jupiter has an interior source of energy from pressure and other radiation.

 
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Post by coalnewbie » Wed. Nov. 24, 2021 7:24 pm

I've got a headache

 
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Post by Lightning » Wed. Nov. 24, 2021 7:28 pm

Yeah I know all "fossil fuels" are stored sunshine from eons ago but coal is special.. it's pretty much handed to us straight out of the ground unprocessed, other than sizing..

I know, coalnewbie already knows this stuff, he's bored with it :lol:

 
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Post by franpipeman » Thu. Nov. 25, 2021 8:24 am

i wonder why the coal is buried deep and it is very difficult to dig it out., and is covered With earth. , where we have to blast it out and haul it up , and transport it to our house where upon we reunite it with our protective atmosphere.It like mother earth made it difficult on purpose to acquire. The sun just beats down on us and like leaves we should collect it Solar panels are the leaves of human kind. for this i am thankful .

 
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Post by coalnewbie » Thu. Nov. 25, 2021 9:09 am

it is very difficult to dig it out
. I know I have been pictures and videos and perhaps I will review them now as I sit here and drink coffee in my anthracite heated home. A miracle of nature indeed. Thank you for all you guys on the front line and I can imagine it is tough. My family thinks I am crazy to heat this way. However, it would be tougher on the miners if no one bought their product so I am doing my best. Other energy sources are going to be expensive for a long long time.

Whenever I talk about it to my kids and grandkids their eyes start to glaze over. So I stopped talking as that is how I feel when they talk about EVs.


 
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Post by coaledsweat » Thu. Nov. 25, 2021 9:32 am

franpipeman wrote:
Thu. Nov. 25, 2021 8:24 am
i wonder why the coal is buried deep and it is very difficult to dig it out., and is covered With earth. , where we have to blast it out and haul it up , and transport it to our house where upon we reunite it with our protective atmosphere.It like mother earth made it difficult on purpose to acquire. The sun just beats down on us and like leaves we should collect it Solar panels are the leaves of human kind. for this i am thankful .
Because if it wasn't buried under thousands of tons it wouldn't be coal!

 
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Post by Sunny Boy » Thu. Nov. 25, 2021 9:48 am

Whatever reaches the Earth, it only hits part of the Earth and the energy per square foot decreases as the surface curves away from the Sun. So, it can't provide enough energy to meet present demand, much less the green movement's dreams of going to more electric power.

Paul

 
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Post by Lightning » Thu. Nov. 25, 2021 10:11 am

Lightning wrote:
Wed. Nov. 24, 2021 5:58 pm
One one-billionth of the Sun's total energy output actually reaches the Earth.
How would that even be calculated? I'll take a crack at that..
Find the area of a sphere (since the sun radiates in every direction) with a 93 million mile radius, our distance from the sun..
Find the area of a circle (since that's the perspective from the sun), The radius of Earth at the equator is 3,963 miles..
Divide the area of the circle (Earth) into the area of the sun's sphere at 93 million miles.

Good luck with the exponents :lol:

 
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Post by McGiever » Thu. Nov. 25, 2021 10:40 am

Sunny Boy wrote:
Thu. Nov. 25, 2021 9:48 am
Whatever reaches the Earth, it only hits part of the Earth and the energy per square foot decreases as the surface curves away from the Sun. So, it can't provide enough energy to meet present demand, much less the green movement's dreams of going to more electric power.

Paul
Could be that you left out some significant parts of what really happens between the sun and the earth…

 
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Post by mntbugy » Thu. Nov. 25, 2021 10:51 am

coaledsweat wrote:
Thu. Nov. 25, 2021 9:32 am
Because if it wasn't buried under thousands of tons it wouldn't be coal!
Hold your horses. :o :what:

https://www.psu.edu/news/research/story/coal-crea ... uncovered/

 
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Post by coaledsweat » Thu. Nov. 25, 2021 10:58 am

OK, it wouldn't be anthracite!

"Coal forms when plant matter in wetland forests falls into the water and is quickly buried. The organic material begins as peat, becomes lignite, then subbituminous, bituminous and finally anthracite as it is buried deeper and becomes more concentrated in carbon. Anthracite coal is mostly carbon, while lignite is still very vegetal."

 
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Post by tsb » Thu. Nov. 25, 2021 11:10 am

Somebody got paid a lot of money for that 8th grade science project.

 
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Post by Sunny Boy » Thu. Nov. 25, 2021 12:09 pm

McGiever wrote:
Thu. Nov. 25, 2021 10:40 am
Could be that you left out some significant parts of what really happens between the sun and the earth…
Even at present population levels, and if we could get 100% solar collection efficiency, we can't get enough solar collection area to supply the World's energy needs and still have enough space to grow the food needed, much less how fast the population is growing.

Paul


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