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
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7
The cigarette lighter was invented before the match.
210
A small airplane can fly backwards.
75
Any modern jet is capable of breaking the sound barrier.
34
Kissenger is a pig-shaped robotic device that lets you kiss someone over the internet.
5