3 ms·

A "solar panel" does not have to be a photovoltaic panel. A much simpler panel can heat water to use in a steam turbine.

• lm28469 3y ago
  We probably wouldn't even be able to source iron ore at that stage, let alone process it to make any kind of useful turbine, but let's say you make a working steam turbine from wood and clay, a DIY solar powered steam turbine is quite a few steps before modern CPU
  • throwaway11460 3y ago
    Depending on your location, there are places where you can't not find iron. Recycle! Civilization might be lost but all that processed and purified iron didn't disappear, it's just hiding under some dirt.
  • nothercastle 3y ago
    There is so much scrap iron. The quality might not be the best but it’s easy to get with time and hand tools