Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0
A small airplane can fly backwards.
75
More than a billion transistors are manufactured every second.
-25
In 1998, Sony accidently sold 700,000 camcorders that had the technology to see through people's clothes.
87
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
Kleenex tissues were originally used as filters in gas masks.
46
Windmills always turn anti-clockwise. Except for the windmills in Ireland!
184