This talk by TEDster Adam Grosser discusses new work on refrigeration without electricity to address problems in the developing world. It erroneously says that a "Crazy Canadian" named Powel Crosely patented an early device but the real inventor was David Forbes Keith of Toronto, Ontario, Canada who filed the patent in 1927 and it was granted in 1929. That device had the danger of exploding and so the more recent work is safer. Please see the 6 minute talk about this hopeful project which is posted below.
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