The ball on top of a flagpole is called a 'truck'.
24
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
Castor oil is used as a lubricant in jet planes.
-5
The IRS processes more than 2 billion pieces of paper each year.
28
Any modern jet is capable of breaking the sound barrier.
34
Originally, Nintendo was a playing card manufacturer.
70
The Queen Mary - the grandest vessel of her day - had many of her vital components made by car manufacturer Skoda!
23