It's interesting to see that "zero-gravity" was originally used in a context that actually _was_ a zero (or very small) gravitational field. The normal usage (w

It's interesting to see that "zero-gravity" was originally used in a context that actually _was_ a zero (or very small) gravitational field. The normal usage (where there's plenty of gravity, it's just that things are falling free in it) is deeply frustrating, because it misleads people into a misunderstanding of what gravity is. Similarly "micro-gravity", which is probably even worse.