The cigarette lighter was invented before the match.
210
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
More than a billion transistors are manufactured every second.
-25
The first alarm clock could only ring at 4 a.m.
120
Students at MIT developed a wristband that can regulate your “thermal comfort”, which could possibly eliminate the need for central heating and cooling.
17
Windmills always turn anti-clockwise. Except for the windmills in Ireland!
184
There are only 14 blimps in the world.
69