The cigarette lighter was invented before the match.
210
A small airplane can fly backwards.
75
Whale oil was used in automobile transmissions as late as 1973.
56
Originally, BMW was an airplane engine manufacturer.
69
Attics were invented in Attica.
43
Technically speaking, crystal glass is actually a Liquid that flows very slowly.
43
The blueprint for a floating city has just been approved by the largest port construction and design company in China. It's entirely self-sustainable, and extends underwater.
2