The cigarette lighter was invented before the match.
210
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7
A small airplane can fly backwards.
75
More than a billion transistors are manufactured every second.
-25
A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
The first alarm clock could only ring at 4 a.m.
120
There are only 14 blimps in the world.
69
The Queen Mary - the grandest vessel of her day - had many of her vital components made by car manufacturer Skoda!
23