I want to put up a statement that airline pilots can relate to. Maybe I will look in Neville's Restoring Forces essay for something. Is this valid?: "The unattached and separate thin layer of gas (atmosphere) surrounding the Earth's solid and liquid surface is not rotating and is not "velcroed" to the Earth's surface. And that is why it takes the same amount of time for a jet airliner to travel 3,000 miles eastward from Point A to Point B as it does westward from Point B to Point A." __________________________________________________________________ Make your browsing faster, safer, and easier with the new Internet Explorer® 8. Optimized for Yahoo! Get it Now for Free! at http://downloads.yahoo.com/ca/internetexplorer/