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1. hambur+(OP)[view] [source] 2025-06-27 03:11:34
Seems prudent to achieve fully robotic datacenters on earth before doing it in space. I know, I’m a real wet blanket.
replies(2): >>Robotb+w5 >>HPsqua+Av
2. Robotb+w5[view] [source] 2025-06-27 04:35:47
>>hambur+(OP)
If mass is going to be as cheap as is needed for this to work anyway, there's no reason you can't just use people like in a normal datacenter.
replies(1): >>little+Aa
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3. little+Aa[view] [source] [discussion] 2025-06-27 06:01:22
>>Robotb+w5
Space is very bad for the human body, you wouldn't be able to leave the humans there waiting for something to happen like you do on earth, they'd need to be sent from earth every time.

Also, making something suitable for humans means having lots of empty space where the human can walk around (or float around, rather, since we're talking about space).

replies(1): >>switkn+nI
4. HPsqua+Av[view] [source] 2025-06-27 09:45:10
>>hambur+(OP)
The economics don't work the same on earth.
replies(2): >>_w1tm+xF >>hambur+Gm2
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5. _w1tm+xF[view] [source] [discussion] 2025-06-27 11:38:59
>>HPsqua+Av
What makes the economics better in space?

Are there any unique use-cases waiting to be unleashed?

replies(1): >>HPsqua+3G
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6. HPsqua+3G[view] [source] [discussion] 2025-06-27 11:45:29
>>_w1tm+xF
Regular maintenance methods are cheap on earth and infeasible in space.

Keep in mind economics is all about allocation of scarce resources with alternative uses.

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7. switkn+nI[view] [source] [discussion] 2025-06-27 12:10:22
>>little+Aa
Underwater welder, though being replaced by drone operator, is still a trade despite the health risks. Do you think nobody on this whole planet would take a space datacenter job on a 3 month rotation?

I agree that it may be best to avoid needing the space and facilities for a human being in the satellite. Fire and forget. Launch it further into space instead of back to earth for a decommission. People can salvage the materials later.

replies(1): >>little+kR
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8. little+kR[view] [source] [discussion] 2025-06-27 13:35:20
>>switkn+nI
The problem isn't health “risk”, there are risks but there are also health effects that will come with certainty. For instance, low gravity deplete your muscles pretty fast. Spend three month in space and you're not going to walk out of the reentry vehicle.

This effect can be somehow overcome by exercising while in space but it's not perfect even with the insane amount of medical monitoring the guys up there receive.

replies(1): >>Robotb+JR
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9. Robotb+JR[view] [source] [discussion] 2025-06-27 13:38:18
>>little+kR
Then just provide spin gravity for the crew habitat.
replies(1): >>little+mT
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10. little+mT[view] [source] [discussion] 2025-06-27 13:52:39
>>Robotb+JR
“just”

It's theoretically possible for sure, but we've never done that in practice and it's far from trivial.

replies(2): >>Mobius+g41 >>Robotb+gD1
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11. Mobius+g41[view] [source] [discussion] 2025-06-27 15:22:06
>>little+mT
Good points. Spin “gravity” is also quite challenging to acclimatize to because it’s not uniform like planetary gravity. Lots of nausea and unintuitive gyroscopic effects when moving. It’s definitely not a “just”
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12. Robotb+gD1[view] [source] [discussion] 2025-06-27 19:43:07
>>little+mT
Yeah, “just.”

Every child on a merry go round experiences it. Every car driving on a curve. And Gemini tested it once as well. It’s a basic feature of physics. Now why NASA hasn’t decided to implement it in decades is actually kind of a mystery.

replies(3): >>little+II1 >>bigfat+P62 >>Mobius+vq2
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13. little+II1[view] [source] [discussion] 2025-06-27 20:34:25
>>Robotb+gD1
1g of acceleration is enormous compared to a child in a merry go round actually.

> And Gemini tested it once as well.

From Wikipedia:

They were able to generate a small amount of artificial gravity, about 0.00015 g

So yes, you need an effect 60 000 times stronger than this.

And you want that to be relatively uniform over the size of an astronaut so you need a very big merry go round.

Nuclear fission is also a basic feature of physics, that doesn't mean engineering a nuclear power plant is straightforward.

replies(1): >>Robotb+eL1
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14. Robotb+eL1[view] [source] [discussion] 2025-06-27 20:57:20
>>little+II1
It’s not, actually. I’ve swung my kids around at multiple gees.
replies(1): >>jjmarr+752
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15. jjmarr+752[view] [source] [discussion] 2025-06-28 00:06:08
>>Robotb+eL1
Kids enjoy having their head and feet at different levels of gravity.

When was the last time you spun yourself around in a desk chair?

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16. bigfat+P62[view] [source] [discussion] 2025-06-28 00:36:06
>>Robotb+gD1
If it’s that straightforward, why haven’t you done it?
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17. hambur+Gm2[view] [source] [discussion] 2025-06-28 05:37:26
>>HPsqua+Av
No, they don’t work the same. They are much more difficult in every way in space.
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18. Mobius+vq2[view] [source] [discussion] 2025-06-28 06:41:52
>>Robotb+gD1
Relevant Scott Manley video: https://youtu.be/nxeMoaxUpWk?si=QOO9KJCGS_Q8JeyR

Relevant tom Scott video: https://youtu.be/bJ_seXo-Enc?si=m_QjHpLaL8d8Cp8b

There is a lot of research, but it’s not as simple as operating under real gravity. Makes many movements harder and can result in getting sick.

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