At 09:23 PM 8/21/2012, mix...@bigpond.com wrote:
Isn't there a balloon attached to the end of the popper? (Which would automatically function as a safety valve).
No, if there really were a rapid increase in pressure, rapid enough, the balloon fitting would not pass the gas fast enough and the cylinder could rupture, pieces flying. That's why I suggested, in one post, scoring the cylinder so that it would break in a predictable way, immediately relieving the pressure and sending a large piece in particular direction.
Just an idea.
