You've got a few friends over on a Friday night. There's good stuff grilling on the barbeque, there's a table full of salads and desserts, there's cold beer in the ... Oh, no!
You forgot to put the beer in the fridge. It's sitting on the porch where you set it down to unlock the door. And it's about 87 degrees out there. You can stick them straight in the freezer, but it'll still be half an hour at least before anyone has a cold brew in their hot little hand. Don't you just wish there was a cooling-down version of the speedy heating-up efficiency of a microwave?
There is! The not-so-dumb folks over at Dumb Little Man
have the answer. If you have a container large enough to hold a few bottles, enough ice to cover them, some table salt, and enough room in your fridge for it all, you can have icy-cold beer in about three minutes! Follow the Dumb Little Man link for full details.
For those who need to know, the reason is this: salt speeds up the melting. When a substance goes from solid to liquid, it absorbs extra heat, keeping the water extra cold. So there. Your grade ten physics teacher was right: the subject is
relevant to your day-to-day life!
[via Matthew Yglesias