A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
The life boat was patented in 1845!
29
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
Energy is being wasted if a toaster is left plugged in after use.
21
Kissenger is a pig-shaped robotic device that lets you kiss someone over the internet.
5
Originally, BMW was an airplane engine manufacturer.
69
The ball on top of a flagpole is called a 'truck'.
24
