An empty can. Interesting setup, basically heat up the can, then turn it upside down into a bath of ice water.
http://www.wired.com/2016/01/make-your-own-tanker-implosion-with-a-soda-can/
An empty can. Interesting setup, basically heat up the can, then turn it upside down into a bath of ice water.
http://www.wired.com/2016/01/make-your-own-tanker-implosion-with-a-soda-can/