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2023-11: Warosu is now out of extended maintenance.

/sci/ - Science & Math

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5826494 No.5826494 [Reply] [Original]

Nice job, XKCD, avoiding doing any actual research or calculations.

If the sun were to go out today, could a portion of humanity collect enough resources to survive, say, 100 years before things got too cold? I'm thinking of either geothermal or nuclear power with copious insulation.

>> No.5826499

No.

>> No.5826501

as he mentioned, the question has been answered at tons of different sites, so he decided to have a little fun with it

>> No.5826502

>>5826499
Would geothermal heat be significantly reduced? If you drop down a few km the temperature can easilly be 300C so even if the surface was at 0K surely there would be quite a wide band of rock that's habitable.

>> No.5826504

Really? It's a Fucking webcomic, do you expect each panel to be peer reviewed too?

>> No.5826505

>>5826502

>If the sun were to go out today
>Let's give ourselves a few hundred years to build subterranean cities first

>> No.5826507

>>5826504
Randall does usually put more effort in.

>> No.5826511

>>5826502
The sun is important for far more reasons than heat. (and most likely for far more reasons than we realize)

-We get vitamin D from the sun
-I'll bet the bacteria in our bodies would die without the sun
-enjoy growing sustainable amounts of food without the sun

>> No.5826516

>>5826511
The food might be tricky but it's hardly difficult to provide artificial UV light. Bacteria in our body dying without the sun? What are you smoking?

>> No.5826525

>>5826494
i dont get it. why is the sun extinguished?

>> No.5826526

>>5826525
Because the lava sun and the ice sun, they collided.

>> No.5826529

>>5826526
beat me to it

>> No.5826532

>>5826529
Isn't this fun?

>> No.5826594

>>5826526
WHAT? LAVA?

What the fuck is going on? Is this bring your daughter to /sci/ day or something?

>> No.5826596

>>5826594
No, it was too "imaginery" for you to get. now shoo

>> No.5826603

>>5826594
What the fuck is with all the new people on 4chan? I thought it was just one of the other boards, but for the past week half of the boards have been overrun with newfags who have to comment on every meme or troll that gets posted here every day telling us how its wrong.

>> No.5826604

How *DARE* this comic about the sun being extinguished in a split second which is *TOTALLY* possible not be funded by several 300k/yr starting grants and full of citations?!?!?!

>> No.5826605

>>5826603
Spare the rod spoil the child i guess.

>> No.5826608

>>5826604
You know you would've seen an actual ;_; a long time ago if this board wasn't almost completely self moderated? Now you just gotta make your own wit ur eyez r somting ;_;.

>> No.5826621

Living in mines would be the only option
Eating mushrooms and growing things with hydroponics with geothermal energy

>> No.5826650

I suppose if you had many years and an unlimited budget to prepare, you could create a shelter deep underground complete with underground farms, etc. I don't think you could make it COMPLETELY self-sufficient, though. Eventually stuff would break that you couldn't fix.

>> No.5826661

>>5826605
Spoil the child spare the effort. Plus the child will probably love you more on your death bed.

>> No.5826662

>>5826661
I hate how aggression manifests, it's a spy eat spy world out there.

>> No.5826667

>>5826662
Though sometimes to me it looks more like Tom and Jerry. I can't complain though, shit's fun regardless.

>> No.5826687

>>5826603
Summer

>> No.5826692

>>5826687
Temperatures dropping again and there's a wind chill factor, i don't think there will be much more time for summer when falls coming so soon.

>> No.5826708

>>5826687
I thought summer was just a myth. I must have missed it the previous couple of years.

>> No.5826709

>>5826708
Winter is the actual factual season.

>> No.5826712

>>5826687
>>5826708

it IS just a myth, moot have confirmed it himself.

>> No.5826726

>>5826712
He said there was just no INCREASE in traffic, that doesn't mean there was no change in traffic. Could be that a significant portion of people only browse 4chan in college, and during the summer they have other things to do.

I certainly wouldn't be here if I didn't have a summer job where I could just sit on my computer all day.

>> No.5827139

Just gotta pump enough fossil fuels into the atmosphere to prevent any radiation from escaping, enough that the radiation we receive from starlight will be more than enough to replace what is lost.

Then, biologically engineer bioluminscent organisms to feed the plant-life.

Earth will be a closed, self-sufficient biosphere powered by starlight.

>> No.5827167

>>5827139

The energy density of starlight is 10^(-15) J/m^3. Just taking a cross section and figuring it becomes a Watt, and comparing it to the 1300 or 10^3 Watts that strike each square meter of Earth's atmosphere from the sun, you're about 1 part in 10^18 off.

Earth's radiation from the atmosphere out into space vastly exceeds 10^(-15) W/m^2; it's about 70% of the incoming, hence about 900 W/m^2. You can't hold the heat in even if you increased Earth's atmospheric insulation by a factor of a trillion. Incoming starlight is just too feeble.

You read too much Tolkien. A Middle Earth lit only by the stars before the ages of the Two Trees and the Lamps, would have frozen solid.