• Black
  • White
  • Green
  • Blue
  • Red
  • Orange
  • Violet
  • Golden
  • Counter :
  • 625
  • Date :
  • 2/5/2011

Fact of the Day: Human Ear

ear

The human ear is most sensitive to frequencies of 1000-4000 hertz, though young ears can hear 20-20,000 hertz.


Other Links:

Language of the birds: Part 1

Language of the birds: part 2

Fact of the Day: Human Foot

Fact of the Day: Electrons

Fact of the Day: Electrons

Electricity is a fundamental property of matter borne by ...
How to Avoid SAD

How to Avoid SAD

The three troublesome feelings: hopelessness, depression and anxiety start to ...
How to Create Recipe Card Albums

How to Create Recipe Card Albums

Gather your favorite recipes. If you are using your own recipes, type ...
  • Print

    Send to a friend

    Comment (0)