The cigarette lighter was invented before the match.
210
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7
More than a billion transistors are manufactured every second.
-25
Mico headphones read your brainwaves and select music based on your state of mind.
7
Energy is being wasted if a toaster is left plugged in after use.
21
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47