The chemistry of cold packs - John Pollard
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YouTubeTED-Ed
The chemistry of cold packs - John Pollard
View full lesson: http://ed.ted.com/lessons/how-do-cold-packs-get-cold-so-fast-john-pollard If you stick water in the freezer, it will take a few hours to freeze into ice. How is it, then, that cold packs go from room temperature to near freezing in mere seconds? John Pollard details the chemistry of the cold pack, shedding light on the ...
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Replying to @Heidi I love zinc as well to help boost your immune system, reduce the duration of colds and help you this cough and cold season. That being said there’s levels to this game and I’m gonna break down the different types of zinc you should try to look for. ##zinc##sick##flu##cold
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