An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
A small airplane can fly backwards.
75
More than a billion transistors are manufactured every second.
-25
The first hard drive available for the Apple II had a capacity of only 5 megabytes.
46
Attics were invented in Attica.
43
Sony researchers have developed a refrigerator that only opens when you smile.
9
Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0

