The laws of thermodynamics

Challenge #28 in the Sevens series. Hosted by Dutch Newchurch.
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This is the fourth in the series: ‘Seven Scientific Theories’. Imagine you have been asked to provide one or two creative and inspirational illustrations for a textbook, on the laws of thermodynamics. A fighter jet climbing, on full reheat (first law)? A forest fire (second law)? Liquid helium (third law)? A fireman shovelling coal into a steam engine's boiler (first law)? (The whole series is here: https://www.dpreview.com/forums/thread/4236850 )
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Canon Firing
by BBrooks
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Explosive heat expansion for kinetic energy uses.
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Submitted: Sunday, 11th February, 2018 04:23 (GMT)
Taken: Sunday, 6th August, 2017
Focal length: 80 mm
Shutter speed: 1/400 sec
Aperture: F4
ISO: 400
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