Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Insights Assessing the Physics in Edmond Hamilton's "The Second Satellite" - Comments

  1. Jul 7, 2017 #1


    User Avatar
    Gold Member

  2. jcsd
  3. Jul 8, 2017 #2


    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    If we assume a retrograde orbit, and taking into account that the Earth is rotating under the orbit, I can get a trajectory that passes over Sweden and just skims Australia with a 6 hour orbital period. However that same orbit does not pass over California or Long island.
    With a 6 hr orbit, it will return to being over any given point of the surface every four orbits. So we can look to see if it might pass over these two points in one of the other three orbits. Alas, such is not the case. the only orbit that crosses over the US goes from the SE coast to crossing the Canada border somewhere around Montana and N. Dakota.
  4. Jul 12, 2017 #3
    For those interested, here is the audiobook
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted