A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
The average car produces a pound of pollution every 25 miles!
18
The ball on top of a flagpole is called a 'truck'.
24
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
The cigarette lighter was invented before the match.
210
Jumbo jets use 4,000 gallons of fuel to take off.
19