Technically speaking, crystal glass is actually a Liquid that flows very slowly.
43
Castor oil is used as a lubricant in jet planes.
-5
Originally, BMW was an airplane engine manufacturer.
69
Whale oil was used in automobile transmissions as late as 1973.
56
Kissenger is a pig-shaped robotic device that lets you kiss someone over the internet.
5
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
The cigarette lighter was invented before the match.
210
There are only 14 blimps in the world.
69