I used sound waves to make espresso. It could cut coffee-brewing energy use by 75%
theconversation.com
‘Ultrasonic espresso’ made with cold water and high-frequency sound waves uses less energy than the traditional version – and taste tests show it’s just as good.
  • altphoto@lemmy.todayEnglish
    3·
    2 个月前

    First add a spoon of grounds or beans. Fill up your cup with water. Next is the fun part. Shake it for 20 thousand years at a few Hz or scream at your coffee as loud as possible for a few months.

  • mindbleach@sh.itjust.worksEnglish
    2·
    2 个月前

    See also boozehounds turning everclear into gin or whiskey overnight. Ultrasonic baths are going to be A Thing for consumer gizmos, in the near future, and then probably taper off.

  • KingKong33@lemmy.mldeleted by creatorEnglish
    12·
    2 个月前

    Just in time for that energy to be funnelled into a data center!