Is it really necessary to send humans to those places just to get the knock-on benefits? Couldn’t we do those things directly, without going there?

It seems to me that, today, those who have the money to spend on these endeavors would only do so if there were perceived short-term benefits to themselves. That means they plan to exploit the resources, or increase their own power somehow.

I know the good engineers that make this happen are doing it for the challenge and in the pursuit of knowledge, and I know that’s why we poors support it, but that doesn’t “pay the bills.” What is the motivation behind the money? Why are they really doing this?

  • reddit_sux
    21·
    9 days ago

    To your point 5, one of the biggest problem in space is cooling heat producing systems. There are 3 ways of heat transfer:

    1. Conduction - through contact of heat conducting systems like metals.
    2. Convection - through movement of heat transfer fluids like water or air.
    3. Radiation - through infrared radiation.

    In space there is only radiative method available which is very inefficient. The moon getting cold on the dark side is due to it lacking atmosphere to hold the heat. One of the reason convection method of heat transfer not available.

    Particle collider uses liquid helium to keep superconducting magnets on. Also to cool the collider.

    Cooling would absolutely not work on moon. Low gravity may give different results of particle experiment and might be helpful.

    • AA5B
      2·
      8 days ago

      In space there is only radiative method available

      But on the moon you’d also have conductive, and be able to connect directly to a massive heat sink

      • TheStaffmaster
        2·
        8 days ago

        This, but you can also build a traditional heat sink (panels) and let the fact that it’s very cold do the work for you. Yes, it would be radiative and that’s slow, but again, two weeks of night. You’d have the time for it to hit optimal temps.

    • TheStaffmaster
      1·
      8 days ago

      I was referring to that being a supplemental benefit. LiHe cooling would still be the main method, just that having that extra radiative “boost” would help do so with increased efficiency/speed. (even if it’s a small boost)

      • reddit_sux
        1·
        7 days ago

        The ground on moon doesn’t work as a heat sink just like on earth. It can however act as an insulator.

        • AwesomeLowlander@sh.itjust.worksEnglish
          1·
          7 days ago

          Are you saying we can’t use the ground as a heat sink on earth? You’re aware this is a perfectly routine technology in use in a lot of places?

      • SaveTheTuaHawk@lemmy.caEnglish
        11·
        8 days ago

        also a heat source. It hits 250F. Belief in moon bases and mining is inversely proportional to STEM education. This is Elmo’s base of Stans.

        We are supposed to carry about human endeavors in temperature extreme 2X earth where there is no possible human activity.

        Much more practical to start mining the poles of the Earth.