Originally, Nintendo was a playing card manufacturer.
70
A small airplane can fly backwards.
75
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7
The average car produces a pound of pollution every 25 miles!
18
There are only 14 blimps in the world.
69
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
Whale oil was used in automobile transmissions as late as 1973.
56