Re: What is a photon

Paul B. Andersen wrote:

Quote about the pressure within the Earth:
  "F = G*m*D*pi*4*R/3
   Now when R or the radius of the Earth is zero, which is the case when
   the m is at the centre of the Earth, then F = 0. Now pressure is
   force per unit area, so pressure at the centre of the Earth is also
   zero. Where the pressure is zero, the temperature is also zero,
   or near zero."
 
Do you, Bertitaylor, like Arindam, claim that the pressure at the centre
of the Earth is zero and the temperature is near 0 K.?

that equation is not the domain you are using. It appears you guys are
self taught with no proper education.