From the circumference of the earth and the period of one revolution, we can estimate angular velocity of its spin. We then use this as an initial condition is the spin equivalent of Newton's f=ma equation.

Torque=Inertia*angular acceleration

Since angular acceleration = d/dT * angular velocity, we can solve the above equation for the angular velocity of the earth as a function of time T. Since there is no torgue applied to the earth, the solution is that the angular velocity equals a constant. Therefore we can predict that the angular velocity will be the same every day.

Then assuming that the sun will not supernovae in the near future, it will continue to rise everyday from our perspective.

This is a rather simplistic proof. But it represents the usual type of math/physics proof- proof by theoretical prediction and experimental verification.

• Ahhh, but - - bladesinger - February 6, 2002 - 16:22 UTC
  • Proof from data analysis - yanniru - February 7, 2002 - 14:42 UTC
    • That's one down - bladesinger - February 7, 2002 - 21:42 UTC
      • Yes - yanniru - February 7, 2002 - 21:58 UTC
        • Okay, now what about... - bladesinger - February 7, 2002 - 22:51 UTC
          • I want to go back in the high IQ group again...please? - something - February 8, 2002 - 04:31 UTC
            • Premises are given - yanniru - February 8, 2002 - 14:35 UTC
              • Yup - bladesinger - February 12, 2002 - 02:17 UTC
                • Depends on your definition of proof - yanniru - February 12, 2002 - 14:54 UTC
            • Gee. How am I supposed to take that? - bladesinger - February 12, 2002 - 02:13 UTC
              • Yes maybe - something - February 13, 2002 - 05:33 UTC
                • Whatever. - bladesinger - February 13, 2002 - 18:03 UTC
          • There's plenty of possible events - harvey1 - February 9, 2002 - 00:51 UTC
• May we assume Newton's religion is now yours - something - February 7, 2002 - 06:04 UTC
  • Yes - yanniru - February 7, 2002 - 22:00 UTC
    • Why? - bladesinger - February 7, 2002 - 22:52 UTC
      • It's full of the unknown and the unproven - yanniru - February 9, 2002 - 14:28 UTC
    • In regard to that ( very fine mush) - something - February 8, 2002 - 20:50 UTC
      • Like objects tend to war against each other - yanniru - February 9, 2002 - 14:44 UTC