An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
The IRS processes more than 2 billion pieces of paper each year.
28
The electric chair was invented by a dentist!
122
Sony researchers have developed a refrigerator that only opens when you smile.
9
More than a billion transistors are manufactured every second.
-25
There are only 14 blimps in the world.
69