The first alarm clock could only ring at 4 a.m.
120
Henry Ford produced the model T only in black because the black paint available at the time was the fastest to dry.
33
A small airplane can fly backwards.
75
Energy is being wasted if a toaster is left plugged in after use.
21
In 1998, Sony accidently sold 700,000 camcorders that had the technology to see through people's clothes.
88
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
The cigarette lighter was invented before the match.
210