39
DIY cold packs that recharge <65F
(youtu.be)
That's really neat. I'm going to make some of it for my work crew. Seemingly every day going forward is going to be 29C or hotter so this summer is my testing ground for heat protection.
Oh man I wanna make these so bad to pass out to my clients; nights here get down past 65 pretty regularly even on 100 degree days so it would be awesome if they could recharge overnight without needing access to a basement or cooler
Finally, a comm for that one user who hand-makes longbows. This ones for you, comrade.