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Re: ZetaTalk and Spaceguard UK (D8)


The GIVENS:

Greg and Bill are saying that their math, Newton, explains why something
that is a million trillion metric tons can orbit the Earth at only 1023
m/s or so.  Because:

    Inverse Square      F = G*M1*M2/r^2
    Centrifugal Force   F = M2*v^2

       where M1=Earth=5.9763e+24 kg
             M2=Moon=7.3508e+22 kg
              r=distance=3.844E8

       and G*M1*M2/r^2 = M2*v^2
       giving G*M1/r = v^2
       thus v = sqrt(GM1 / r)

       so F1=F2

    Constant as m * p^2/d^3 is constant for all orbits.
       where  m = mass of primary
              d = distance
              p = period

I'm asserting that the force of gravity has not been taken into
consideration as it is not used in THE SAME manner in all the
equations.  They are saying the the math is right because it balances on
paper.  I'm saying it does not jibe with reality.  This produces some
interesting results, where the Moon could theoretically orbit at the
same distance as Satellites, at the same velocity (see next post).