Sony researchers have developed a refrigerator that only opens when you smile.
9
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
Castor oil is used as a lubricant in jet planes.
-5
Surgeons who grew up playing video games make 37 percent fewer mistakes.
250
Windmills always turn anti-clockwise. Except for the windmills in Ireland!
184
A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4