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 electric chair was invented by a dentist!
122
Originally, BMW was an airplane engine manufacturer.
69
It takes six months to build a Rolls Royce...and 13 hours to build a Toyota.
93
The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60