The ball on top of a flagpole is called a 'truck'.
24
A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
A fully loaded supertanker traveling at normal speed takes a least twenty minutes to stop.
27
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
Originally, BMW was an airplane engine manufacturer.
69
The electric chair was invented by a dentist!
122
The life boat was patented in 1845!
29