Ball's Out Physics: Episode 3.0 - Centripetal Force, Gravity, and the Sun FE Engineer Brian Mullin

Originally Published on Sep 27, 2015 by Brian Mullin: https://www.youtube.com/channel/UCArB...

Brian Mullin's page is no longer up, but when it was, this is what it said...

"Excellent short video on Gravity and Relativity: https://www.youtube.com/watch?v=W_axe...

Continuing from Episode 2, this episode looks at the relationship between Centripetal Force and Gravity, and how the relationship was used to build the solar system model. When the equations are set equal to each other, the mass of the planet or object that is orbiting the Sun is cancelled it out. This is accepted by mainstream Physics, however this seems to defy the very logic that the equation of Gravity is based on since the force depends on both masses. It appears that this was by design to make the Solar System model work.

Conclusion:
The Solar System model was designed based on one Earth, orbiting one Sun, in one year. Therefore when the derived orbital radius equation from this model is used with a different period (time to complete orbit), what is calculated is the orbital radius that Earth (or an object with equal mass to Earth) would have for that period. If the mass of the object becomes larger or smaller than that of Earth, then the orbital radius, period, and velocity must all change because the force between the object and the Sun would have to change. Just because the math works out does not mean it is logical. The basic premise of the gravity equation is destroyed by cancelling the mass."