An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
More than a billion transistors are manufactured every second.
-25
The average car produces a pound of pollution every 25 miles!
18
Surgeons who grew up playing video games make 37 percent fewer mistakes.
250
About 39,000 gallons of water are used to produce the average car!
14
The electric chair was invented by a dentist!
122