R
RichD
Guest
Yesterday, after struggling to open a glass jar,
I resorted to a knife to pry it open. Not for the first time.
Which got me wondering, how do they evacuate the
jar, before screwing on the lid?
Another thought, a survey of public science illiteracy,
ask: is the lid stuck because it\'s pressurized, or
evacuated? What would be the proportion of replies?
--
Rich
I resorted to a knife to pry it open. Not for the first time.
Which got me wondering, how do they evacuate the
jar, before screwing on the lid?
Another thought, a survey of public science illiteracy,
ask: is the lid stuck because it\'s pressurized, or
evacuated? What would be the proportion of replies?
--
Rich