4 ms·

Caves.

• nkrisc 8y ago
  Yes, I thought of this. However: humans spend a proportionally tiny amount of time deep in caves as a species and while some caves might have properties similar to an anechoic chamber, I would guess not to the degree an engineered chamber does.
  • justinator 8y ago
    Well to be perfectly honest, most humans spend a proportionally tiny amount in an engineered chamber as well. I find myself in a cave... I dunno: weekly? That is, in part, because I live near many of them, and I'm very curious.
    • nkrisc 8y ago
      Yes, most people spend little time in anechoic chambers. That's my point. That's why the silence in there is unsurprisingly unnerving and unusual to humans. If you're in a cave weekly then you are in a very, very tiny minority of people. That's pretty cool though.
• pitaj 8y ago
  Caves are certainly not anechoic chambers. Anechoic chambers are called that because they have no internal reflection (no echos, an-echoic). Caves may be highly insulated from the rest of the world, but their rock walls are highly reflective. An anechoic chambers sounds weird because there is practically no natural analogue.
• ancientworldnow 8y ago
  As a caver, they're not as quiet as you think. Most caves are filled with the sounds of dripping water, running water, and blowing wind. While you might not be immediately next to one of those sources, they echo quiet a bit. Granted it's still quieter than most environments, but feels less so than things like a heavy snowfall.
  • yial 8y ago
    Did you ever feel the need to get your rabies vaccine as part of your hobby ? If so, was your insurance company willing to pay for it ?