Recent content by JayS0

  1. J

    Oxygen Extracted from Martian Atmosphere - a first

    so throw it away!
  2. J

    Why is life so much more resilient than machines?

    Living things are comprised of cells which (mostly) have some self-repair ability, and if they are not repairable, replacement cells can be grown by reproduction. Machines such as cars don't have this innate ability.
  3. J

    Graduate Is this evidence that Venus originally had a nitrogen atmosphere?

    Has MESSENGER found evidence that Venus originally had a nitrogen atmosphere, and might have been more habitable, and the present amount of CO2 was released by some cataclysm afterwards? https://phys.org/news/2020-04-lucky-messenger-upends-long-held-idea.html
  4. J

    Undergrad Heating/cooling moon tunnels, why and how?

    I suppose that the waste heat of a moon base inside the tunnel will heat it and cooling will be the problem. A lot of waste heat has to be dumped by the NASA Space Shuttle and the ISS.
  5. J

    Undergrad Heating/cooling moon tunnels, why and how?

    So that humans can live in them.
  6. J

    High School Could floating cities on Venus extract resources profitably?

    put them into a fuel cell or just burn them together; there's your water. :smile:
  7. J

    High School Could floating cities on Venus extract resources profitably?

    Advantages: abundant sunlight, good air pressure, some protection from radiation, atmosphere could be mined for carbon and nitrogen Disadvantages: have to protect against acid, can't use resources on the surface, can't "live off the land", have to bring our own oxygen and hydrogen, or extract...
  8. J

    Why do compilers have an extra step between translation and execution?

    interpreted code runs more slowly because it is converted to machine code as it runs but interpreted code is good for proto-typing, when you want to make lots of changes and test quickly compiled code runs faster because it has all been converted to machine code already, and optimised for...
  9. J

    Did complex animals evolve at deep sea volcanic vents?

    We see complex animals such as crabs living near deep sea volcanic vents. (Reference: https://ocean.si.edu/ocean-life/invertebrates/hydrothermal-vent-creatures) This is causing speculation that similar life may be living near deep sea volcanic vents on other world such as Europa. Did these...