Recent content by Jay Hill

  1. J

    Undergrad Hot gas expansion rate into outer space

    Dear Sirs, as hopeless American by heart and mind I'm utterly surprised to find here - out of all places - a institutional THOUGHT CONTROL. The dedicative discussion about some ridiculous "sci"-fi" movies surely is more easy to do compared with the real and most strange phenomena men kind...
  2. J

    Undergrad Hot gas expansion rate into outer space

    It IS irrelevant - unless you anticipate certain things underneath your engine nozzle. Now it's going to disable a certain moon landing skepticism around some friends of mine. The argument here: The gases hit the moon ground (at 10ft height) in less then 2ms (at 15,000ft/s)- allegedly quick...
  3. J

    Undergrad Hot gas expansion rate into outer space

    Good Morning Sirs, it seems to be surprisingly hard to get the numbers of a mystery: How fast expand hot rocket exhaust gases into empty space? Of course aside from its exit velocity! Does the expansion interfere with the impulse direction? I.e. is the impulse omnidirectional effective...