The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
The average car produces a pound of pollution every 25 miles!
18
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
Henry Ford produced the model T only in black because the black paint available at the time was the fastest to dry.
33
Energy is being wasted if a toaster is left plugged in after use.
21
The cigarette lighter was invented before the match.
210
Attics were invented in Attica.
43
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308