An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
Surgeons who grew up playing video games make 37 percent fewer mistakes.
250
A small airplane can fly backwards.
75
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
More than a billion transistors are manufactured every second.
-25
The first hard drive available for the Apple II had a capacity of only 5 megabytes.
46
Windmills always turn anti-clockwise. Except for the windmills in Ireland!
184

