Originally, BMW was an airplane engine manufacturer.
69
The cigarette lighter was invented before the match.
210
Technically speaking, crystal glass is actually a Liquid that flows very slowly.
43
Jumbo jets use 4,000 gallons of fuel to take off.
19
Castor oil is used as a lubricant in jet planes.
-5
A small airplane can fly backwards.
75
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7