• _NoName_@lemmy.ml
    link
    fedilink
    arrow-up
    1
    ·
    4 months ago

    Material phase changes are like a cheat code for humanity. Reusable chemical handwarmers are also black magic. You just click a metal plate inside and all of a sudden it’s a hot solid.

    NightHawkInLight made a video showing how you can mix two different salts together and it’ll create a packet that stays at 65 degrees for hours.

    Video in question