A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
Sony researchers have developed a refrigerator that only opens when you smile.
9
The Google driverless car has only encountered two accidents. The first it was rear ended at a stop sign, and the second was when a human was behind the wheel.
7
The cigarette lighter was invented before the match.
210
More steel in the United States is used to make bottle caps than to manufacture automobile bodies.
55
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
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12