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
The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60
There are only 14 blimps in the world.
69
All GPS units sold in the civilian market have to be programmed to deactivate themselves if they detect they are travelling faster than 1200 MPH or are above 60,000 feet in altitude to prevent them being used in intercontinental ballistic missiles.
2
Super Nintendo and Sega Genesis had an online multiplayer mode.
-2
Whale oil was used in automobile transmissions as late as 1973.
56
It would take twenty new mid-size cars to generate the same amount of pollution that a mid-size 1960's car did.
20