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
Mico headphones read your brainwaves and select music based on your state of mind.
7
Originally, BMW was an airplane engine manufacturer.
69
In 1998, Sony accidently sold 700,000 camcorders that had the technology to see through people's clothes.
88