4B70.25 - Big Expansion Cloud Chamber

Expansion cloud chamber

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PIRA Classification: 4B70.25

Description: A large jug has a saturated atmosphere. A lit match, dropped in the jug, provides nucleation centers. A bicycle pump is attached to a stopper in the opening of the jug and is pumped. The cork will pop, leaving the jug full of 'clouds'.

Special Instructions: None

Condition: Ok

Setup time: 2 minutes

Safety Issues: Watch out for the cork popping.