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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 spa

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.

littlestymaar 1y ago
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.
- Robotbeat 1y ago
  Then just provide spin gravity for the crew habitat.
  - littlestymaar 1y ago
    “just” It's theoretically possible for sure, but we've never done that in practice and it's far from trivial.
    - MobiusHorizons 1y ago
      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”
    - Robotbeat 1y ago
      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.
      - littlestymaar 1y ago
        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.
        Robotbeat 1y ago
        It’s not, actually. I’ve swung my kids around at multiple gees.
        jjmarr 1y ago
        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?
      - bigfatkitten 1y ago
        If it’s that straightforward, why haven’t you done it?
      - MobiusHorizons 1y ago
        Relevant Scott Manley video: https://youtu.be/nxeMoaxUpWk?si=QOO9KJCGS_Q8JeyR https://youtu.be/nxeMoaxUpWk?si=QOO9KJCGS_Q8JeyR Relevant tom Scott video: https://youtu.be/bJ_seXo-Enc?si=m_QjHpLaL8d8Cp8b 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.

littlestymaar 1y ago

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.

Robotbeat 1y ago
Then just provide spin gravity for the crew habitat.
- littlestymaar 1y ago
  “just” It's theoretically possible for sure, but we've never done that in practice and it's far from trivial.
  - MobiusHorizons 1y ago
    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”
  - Robotbeat 1y ago
    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.
    - littlestymaar 1y ago
      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.
      - Robotbeat 1y ago
        It’s not, actually. I’ve swung my kids around at multiple gees.
        jjmarr 1y ago
        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?
    - bigfatkitten 1y ago
      If it’s that straightforward, why haven’t you done it?
    - MobiusHorizons 1y ago
      Relevant Scott Manley video: https://youtu.be/nxeMoaxUpWk?si=QOO9KJCGS_Q8JeyR https://youtu.be/nxeMoaxUpWk?si=QOO9KJCGS_Q8JeyR Relevant tom Scott video: https://youtu.be/bJ_seXo-Enc?si=m_QjHpLaL8d8Cp8b 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.