Energy is being wasted if a toaster is left plugged in after use.
21
Jumbo jets use 4,000 gallons of fuel to take off.
19
The first alarm clock could only ring at 4 a.m.
120
Sony researchers have developed a refrigerator that only opens when you smile.
9
Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0
Kleenex tissues were originally used as filters in gas masks.
46
The cigarette lighter was invented before the match.
210