Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0
The IRS processes more than 2 billion pieces of paper each year.
28
Energy is being wasted if a toaster is left plugged in after use.
21
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
Scientists in China have built a prototype high-speed maglev train that is theoretically capable of reaching speeds of up to 1,800 mph (2,900 km/h).
1
Originally, Nintendo was a playing card manufacturer.
70