5 ms·

Can you say more about using LN2 to clean dusty floors? Asking for a friend.

• myself248 5y ago
  Imagine pouring a bunch of water on the floor that picks up and carries the dust some distance, then 2 seconds later the water is gone and the dust is deposited in its new location. It's fantastically effective for carrying crud out from under difficult-to-move equipment, to somewhere you can easily sweep it up.
  • IgorPartola 5y ago
    This. It carries the dust to the walls and then you just sweep the edges. Just sweep it on the floor and watch it work.
    • _carbyau_ 5y ago
      My wife manages science labs. People can't ride in an elevator with LN2 for fear of displacing all oxygen. I imagine pouring it across the floor had to be careful in some sense! (IE not too much, well ventilated, make sure no one who cares - like lab managers - are around...)
      • myself248 5y ago
        Yeah, picking it up from the supplier, they _really_ want you to be in a pickup truck so it can ride outside. I was able to placate with "The place I'm going to is literally around the block, like half a mile from here, I could walk the dewar there and then walk back for my car if that's better, but honestly I'm just gonna drive with all the windows down", and they grumbled but they did let me leave. I should get a hitch-mount carrier...