One step is 3.6 million miles
One evening in July, I began to think about blackholes as I was getting into bed.
Some information I thought might have interested you, or things I had kind of wanted you to know.
Big Bang & Escape velocity is the minimum speed required to escape the gravitational field of a planet without ever falling back.
Proposals for...(temporary tattoo projects)
Escape velocity is the minimum speed required to escape the gravitational field of a planet without ever falling back.
