My disclaimer was accurate: I am ignorant about these things. I going camping this weekend. Can't think of a better subject to Google while out there (gotta love coverage in California) and learn about.
Isn't googling while camping cheating? :) While you're at it, look up the Chikyu. It's a very neat ship! (and some of the translations on the JAMSTEC website for the Chikyu are amusing: e.g. "Science the Earth")
That aside, they're very good and very reasonable questions.
