The first alarm clock could only ring at 4 a.m.
120
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
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
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
Kissenger is a pig-shaped robotic device that lets you kiss someone over the internet.
5
The average car produces a pound of pollution every 25 miles!
18