Recent content by jacoblost

  1. J

    High School How strong is gravity in the center of the earth?

    I'm not to informed on this material, but I thought that Newtons theorems have been pretty completely superseded by Einsteins. Under general relativity gravity is defined by the curvature of space-time by a massive object. Thereby all of the Earth's mass should compound the indentation of space...
  2. J

    Graduate Two layered discs rotating at relativistic angular velocities

    Hmm... Somehow, I really don't know how this happens, I think I completely misunderstood the OPs question. Sorry. You're correct. Somehow I understood that both discs were spinning opposite each other and still spinning relative to someone observing. I didnt see the OPs clarification that...
  3. J

    Graduate Two layered discs rotating at relativistic angular velocities

    ^Although I could be wrong, I would disagree. Real world example of relativistic effects: GPS satellites must be corrected for time dilation do to their relative velocity to someone using a GPS device on the earth. IE the clocks of two rotating objects someone on the Earth and GPS satellite...