On Dec 31, 2012, at 11:55, David Roberson <dlrober...@aol.com> wrote:
> I am not sure I understand what you are suggesting. Does the piston return > to its beginning point with each cycle? If so, at least a complete loop is > covered which is the requirement. The piston would return to its original position many times; in the case of the lone popper, it would be upright, so that gravity pulls the piston down. > We would be looking for an average over many cycles rather than attempt to extrapolate from a single cycle. Eric
