MH - > Why not the earths moon or mars ? > ---------------------------------- Kirk - > What is the gravitational force of the 3 bodies? > > What is the velocity of a gas molecule assosciated with a body at that > distance from the sun? > > I believe that is why the 2 lesser bodies have extremely rarified gas > accumulations compared to earth. > Not enough gravity to retain the molecules at that temperature. ---------------------------------- MH - That sounds like the illustration I'm reading in a book called, "Almost Everyone's Guide to Science" by John Gribbin with Mary Gribbin. Chapter 8 - Winds of change discusses Venus, Mars and mostly Earth's atmospheric development such as element components, bacteria, photosynthesis, water, wind, ozone, ice, Earth's orbit & tilt (wobbling gyroscope spin varies from 21.8¡-24.4¡ out of vertical. Today - 23.4¡ and decreasing in which summers are a little cooler and winters a little warmer) and makes mention of John Lovelock's Gaia, etc.
Another book review: January 23, 2000, Sunday BOOK REVIEW DESK Science for Dummies By David Goodstein ALMOST EVERYONE'S GUIDE TO SCIENCE The Universe, Life and Everything. By John Gribbin with Mary Gribbin. http://query.nytimes.com/search/full-page?res=9F04E4D6123AF930A15752C0A9669C8B63 includes CHAPTER ONE - Atoms and elements http://www.nytimes.com/books/first/g/gribbin-guide.html ------------------------ Yahoo! Groups Sponsor ---------------------~--> FREE COLLEGE MONEY CLICK HERE to search 600,000 scholarships! http://us.click.yahoo.com/iZp8OC/4m7CAA/ySSFAA/FGYolB/TM ---------------------------------------------------------------------~-> Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Please do NOT send "unsubscribe" messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
