george dark wrote: Cameron Begg wrote: Scott Ashkenaz wrote... snip George wrote snip I examine the bottle carefully, using such clues as cap placement, orientation of any printing or labels, and seek out what was intended by the manufacturer to be the bottom. Often this is a relatively flat area. If I place the bottle on a stationary, flat surface with that side down, gdark@dfw.net Snip, snip, snip. While this theory may seem to work some of the time, lengthy experimentation has led me to conclude that it is somewhat flawed. I have gone to great expense, countless hours and spent the best part of 7 government grants to elicit a favorable solution. It is my contention that most bottles have 2 bottoms if one uses the arguement of a flat area as constituting such. My thesis on the subject can be viewed at the National Society for a Flat Earth home page at http:/www.Flathead.com/index/public/theory/bottle/?/thesis/~ Don't be alarmed if your search leads you to a site that resembles a Vintage car forum as the Society is somewhat secretive due to bad publicity in the past. Just keep scrolling down the 14834 page till you get to the section on Dynamic Balance and its about 50 pages past that. If you have the time go down another 30 pages and read the thesis on Symbiotic relationships of empty sauce bottles {i.e. their habit of sharing the same shelf space on tops of Kitchen cupboards} Luke in Oz