A small airplane can fly backwards.
75
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
Kleenex tissues were originally used as filters in gas masks.
46
A toaster uses almost half as much energy as a full-sized oven.
33
Surgeons who grew up playing video games make 37 percent fewer mistakes.
250
More than a billion transistors are manufactured every second.
-25
The cigarette lighter was invented before the match.
210