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
Sony researchers have developed a refrigerator that only opens when you smile.
9
The blueprint for a floating city has just been approved by the largest port construction and design company in China. It's entirely self-sustainable, and extends underwater.
2



