> Would you agree that fundamental physics does not preclude a functioning nuclear rocket?... What is the primary reason? Yes. No demand. > Would you agree th

> Would you agree that fundamental physics does not preclude a functioning nuclear rocket?... What is the primary reason? Yes. No demand. > Would you agree that fundamental physics does not preclude a functioning nuclear rocket? Fundamental physics also doesn't preclude a nuclear powered ferris wheel the size of the empire state building. There are lots of things that humans can do but don't do. > A live, radioactive (low-level, but still radioactive) exhaust stream is not going to happen in the US in the current culture. This hasn't stopped us from building an enormous fleet of nuclear ICBMs and a rather large fleet of nuclear power plants.