1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Floating Halo

  1. Sep 12, 2007 #1
    "Floating Halo"

    This is an oversimplification that assumes the earth is perfectly spherical, ignores gravitation pulls from objects other than the earth, assumes that a superstrong material could create a giant structure that can withstand enormous stress and that it's density is constant throughout.

    Imagine a large rigid halo (with a radius greater than the earth's) placed around the earth. The force "pulling" the halo towards the earth would be equal to the force pulling the halo on the opposite side. Would leave the halo "hovering" above the earth in a state of equilibrium? If so, because the centres of gravity of the earth and halo in the same place does this mean that the two objects are in equilibrium with each other? And also how amazing cool would it be to see a seeming straight platform float across the land?
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted

Similar Discussions: Floating Halo
  1. Lamp halo (Replies: 1)

  2. Lamp halo (revisited) (Replies: 14)

  3. Boat float (Replies: 5)