Wednesday, January 5, 2011

Limen

Approximate absolute sensitivities, expressed in everyday terms:

  • Vision – A candle flame seen at 30 miles on a dark, clear night
  • Hearing – The tick of a watch under quiet conditions at 20 feet
  • Taste – One teaspoon of sugar in two gallons of water
  • Smell – One drop of perfume diffused into the entire volume of a three-room apartment
  • Touch – The wing of a bee falling on your cheek from a distance of one centimeter

Via: Mind Hacks

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