You can hear the difference between hot and cold water

Water is viscous. With heat, the viscosity drops. And you can hear the difference in its splash.

Notable Replies

  1. I can tell the difference hearing the cold water turn warm after I turn on the shower

  2. This is also true for petroleum and solvent contamination in water even at low levels, but it's hard to quantitatite that (it comes across like dowsing to someone who doesn't spend time with contaminated water) but I've been pretty sure when clean looking water is not clean, well before I got the lab data back. It just sloshes wrong.

  3. The image that came to my mind was hot tea being poured.

  4. hecep says:

    You can hear the difference between hot and cold water when someone jumps into the shower. The resulting screams are quite distinct from each other.

  5. Of course you can.

    It's an "Ah, ah, ah" sound under hot water, and more of a high-pitched yip if you're standing under cold.

    ETA: dammit, @hecep.

Continue the discussion bbs.boingboing.net

35 more replies

Participants