Castor oil is used as a lubricant in jet planes.
-5
Contrary to popular belief, putting sugar in a car's gas tank will NOT ruin its engine.
25
The cigarette lighter was invented before the match.
210
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
A small airplane can fly backwards.
75
Sony researchers have developed a refrigerator that only opens when you smile.
9