A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308
Castor oil is used as a lubricant in jet planes.
-5
A toaster uses almost half as much energy as a full-sized oven.
33
Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
144
Technically speaking, crystal glass is actually a Liquid that flows very slowly.
43
There are only 14 blimps in the world.
69