An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
In the early 1960's, Porsche commercially manufactured farm tractors.
24
Jumbo jets use 4,000 gallons of fuel to take off.
19
The first alarm clock could only ring at 4 a.m.
120
Mico headphones read your brainwaves and select music based on your state of mind.
7
The average car produces a pound of pollution every 25 miles!
18
More than a billion transistors are manufactured every second.
-25
Kissenger is a pig-shaped robotic device that lets you kiss someone over the internet.
5