The Myth of the Snowball

I was told that somebody had a snowball thrown at their head and their eye popped out. How could that be? That's got to be shot out of a machine. One child's arm is strong enough to pop an eye out. I've never contemplated the physics of that, but it seems unlikely. We did talk about black holes in the nature of space and time. And if time travel was actually possible in one episode, Dr. Clifford Johnson, I have to look up his title.