3 ms·
In theory, you could produce this in the medieval era if you had mercury. https://en.m.wikipedia.org/wiki/Sprengel_pump https://en.m.wikipedia.org/wiki/Sprenge
by Out_of_Characte 3y ago
In theory, you could produce this in the medieval era if you had mercury.
https://en.m.wikipedia.org/wiki/Sprengel_pump https://en.m.wikipedia.org/wiki/Sprengel_pump
Just imagine some society discovering superconductivity on the cusp of even starting a technological revolution.