Originally posted by sonhouseBump! You guys should really look at this cool video!
One thing I got out of this piece is how high up it was in orbit and still had significant drag from the wispy atmosphere, 650 kilometers high! (400+ miles). I didn't think there was much that high but it is enough to cut into the thrust developed by solar sai ...[text shortened]... . So the gist of that is they must have to be over a thousand km up to even start working well.
Originally posted by joneschrYeah, I checked back and it has gone into the ether...
What video - at the link you posted I see an article but no video?