November 11, 2007

Amazing facts

  • Want to try your hand at some paper folding?A dry sheet of paper cannot be folded in half more than 7 times
  • A single bolt of lightning can heat up the atmosphere to 50,000 degrees Fahrenheit
  • A compass never points to the geographic north but to the magnetic north
  • Ancient science? In the 2nd Century B.C Greek astronomer Erstosthenes accurately measured the distance around the earth at about 40,000 km but nobody believed him
  • You do know that light travels faster than sound.But did you know that sound travels 3 times faster through water than through air?

No comments: