I'm not sure how much good physical descriptions are going to be, though.

So we don't have a good description of exactly how they form or what causes them.

They won't last long if we've got a good description of the vehicle.

Yes, that is a good description of what I am.

You know they're a really good description of their character?

He gives us a good cold description at the start.

And what you just said is a pretty good description.

Which is a pretty good description of the universe itself.

The report gives a very good description of the next steps to be taken.

And having had such good descriptions of those things earlier in the story, we miss them.