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

Black Hole/ Schwarzschild

  1. Feb 11, 2015 #1
    Hello :)
    I had a question , i recently red a lot about black holes and i had a question about the Schwarzschild
    Radius . How does that come that π is not in the equation ? The black hole is a sphere so instinctly one could think that Pi should be in the equations.. ?
    P.S: I'm french and 16 so sorry for the eventuals faults :)
  2. jcsd
  3. Feb 11, 2015 #2


    User Avatar
    Science Advisor
    Gold Member

    In geometry, you start with radius r. π comes in to get circumference, area, volume, etc.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Black Hole/ Schwarzschild
  1. Black hole? (Replies: 1)

  2. Black holes (Replies: 5)

  3. Black hole ? (Replies: 8)

  4. Black hole ? (Replies: 12)