The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
The cigarette lighter was invented before the match.
210
Super Nintendo and Sega Genesis had an online multiplayer mode.
-2
Jumbo jets use 4,000 gallons of fuel to take off.
19
It would take twenty new mid-size cars to generate the same amount of pollution that a mid-size 1960's car did.
20
Energy is being wasted if a toaster is left plugged in after use.
21
Kleenex tissues were originally used as filters in gas masks.
46