Hmmm, concerning Roaring Rockets. I'm not so sure this is a science book for little kids as much as just a fanciful tale. (Sometimes one can judge a book by it's cover.) [img]/phpBB/images/smiles/icon_wink.gif[/img]

Ah, haven't heard the terms "gravity boots" or "magnetic boots" in years. In old fashioned (pre-WWII) science fiction as well as 1950's classic sci-fi movies, (such as George Pal's Destination Moon,) the boots are used to keep people stuck on the outside hull of the ship during an E-V-A. (Though they didn't say "E-V-A" in those days. They said, "We've got to go outside the ship and repair meteor damage.")

Chip