Sony researchers have developed a refrigerator that only opens when you smile.
9
Windmills always turn anti-clockwise. Except for the windmills in Ireland!
184
The first hard drive available for the Apple II had a capacity of only 5 megabytes.
46
There are only 14 blimps in the world.
69
More than a billion transistors are manufactured every second.
-25
The cigarette lighter was invented before the match.
210
The ball on top of a flagpole is called a 'truck'.
24