Energy is being wasted if a toaster is left plugged in after use.
21
Sony researchers have developed a refrigerator that only opens when you smile.
9
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
The first alarm clock could only ring at 4 a.m.
120
Attics were invented in Attica.
43
More than a billion transistors are manufactured every second.
-25
Super Nintendo and Sega Genesis had an online multiplayer mode.
-2