3 ms·
How cold would the pipe be in space if it was shaded? Wouldnt that cut the energy needed by a bit?
by eppp 2y ago
How cold would the pipe be in space if it was shaded? Wouldnt that cut the energy needed by a bit?
- perihelions 2y agoIt's more or less impossible to shade a space elevator because the (hot, radiant) earth spans a full hemisphere of its field of view and the sun wanders most of the opposite one. No way to passively reach cryogenic temperatures—let alone the deep-cryogenic ones demanded by high current-density superconductors.