My book for Rocket Propulsion, in a chapter on Launch Vehicles, quotes from Robert Heinlein's "The Moon is a Harsh Mistress".

Everything comes full circle. XD

First, let’s talk about light and gravity. I’ll forewarn you; there’s a mind-fuck coming.

When light goes near a large gravitational source, it slows down and bends. You can see this around most stars, and especially black holes. What makes black holes black is the fact that light doesn’t escape them; the gravity is so strong that light cannot ( Read more... )

Here it goes again!

Ok, so, here’s the basic idea of black hole propulsion: you take your ship, of whatever design necessary, (more on that later) and perch it right on the event horizon of a black hole.


( Read more... )

This is the one I want to start out with. It's an idea I've been working on for ages. I like to call it "Fun with Gravitonics". Tis a simple concept, really, once you get some basics down...

Now, this may all be very basic to some of you; to some, it may be the most novel thing you've ever read. The first group, bear with me. The second group, leave ( Read more... )