4 ms·

Reminds me of a Lofstrom Loop: http://en.wikipedia.org/wiki/Lofstrom_loop http://en.wikipedia.org/wiki/Lofstrom_loop

• msandford 13y ago
  This idea to me seems a lot more feasible. Read about it years ago and it makes me sad to see that it's not happening.
  • jessaustin 13y ago
    A structure 2000 km (actually, 4000 km) long is envisioned, with internal speeds of 14km/s. We're just not very good at building that sort of thing yet.
    • mjn 13y ago
      At those scales, it's considerably harder than building high-speed rail NYC<->LA, and the latter is usually ruled out as infeasible.