An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
The cigarette lighter was invented before the match.
210
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
More than a billion transistors are manufactured every second.
-25
Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0
Sony researchers have developed a refrigerator that only opens when you smile.
9
The average car produces a pound of pollution every 25 miles!
18