PLYMOUTH, England – A professor at a British university dropped a bottle of liquid nitrogen into warm water to create a “cannon” launching 1,650 ping pong balls into the air.
Roy Lowry, associate professor in physical chemistry at Plymouth University, appeared in a video on the school’s YouTube channel explaining how nitrogen in its gas form occupies more space than it does as a liquid.
Lowry illustrates his point in the video by dropping a bottle of liquid nitrogen into a bin of warm water and quickly dumping 1,650 ping pong balls into the bin.
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(Photo courtesy of Plymouth University/YouTube video screenshot)
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