1) The word "computer" contains three vowels: O, U, and E.

2) The average person walks the equivalent of three times around the world in a lifetime.

3) The first commercially available digital camera, the Dycam Model 1, was introduced in 1990 and had a resolution of 376 x 240 pixels.

4) The destructive power of cyclones is often attributed to their storm surge, which is a rise in sea level caused by the strong winds and low atmospheric pressure.