https://youtu.be/eW2Z_8mAzSs Did you know that the most widely used substance in the entire world, after water, is concrete?? You'd think it was paper or plastic or wood even, but more concrete is used every single day across the world than any of those materials... and for what it's worth, it's considered one of the least
  • ohwhatfollyisman@lemmy.worldEnglish
    1·
    4 months ago

    they tried building walls with this material first, but realised pavements would be a better idea because they only had coffee grounds.