Originally Posted By: Orac
Consider what is going to happen ... if you cant work it out genius put two wheels on a pivot start them spinning and touch the two wheels together and watch what happens.


If thewheels are on different axils and rotating in opposite directions (I.e. one clockwise and one anti-clockwise) the surfaces that come together will be stationary relative to eachother. Nothing violent happens, I suspect.

Of course, I'm not suggesting that two planets, coming together in this way, would lack violence; just wondering about the analogy.

There never was nothing.