The ball on top of a flagpole is called a 'truck'.
24
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
Contrary to popular belief, putting sugar in a car's gas tank will NOT ruin its engine.
25
The first hard drive available for the Apple II had a capacity of only 5 megabytes.
46
Sony researchers have developed a refrigerator that only opens when you smile.
9