Definitely. I just meant in terms of efficiency.
Steven Desjardins Department of Chemistry Washington and Lee University Lexington, VA 24450 (540) 458-8873 FAX: (540) 458-8878 [EMAIL PROTECTED] >>> [EMAIL PROTECTED] 10/26/2004 12:14:05 PM >>> ----- Original Message ----- From: "Steve Desjardins" <[EMAIL PROTECTED]> > There are many activities (music) that have no real benefit except that > someone exnjoys it. > > I was a bit puzzled by your comment about jumbo jets. They are > actually pretty efficient even though they use a lot of fuel because > they move so much stuff. They are certainly more efficient than trucks. > The problem is they have to land at airports, whereas trucks can go > anywhere. IIRC, the altitude where jumbo jet pollution happens offsets the efficiency. The same amount of exhausts do a lot more damage up there. Jostein
