A small airplane can fly backwards.
75
Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0
The cigarette lighter was invented before the match.
210
About 39,000 gallons of water are used to produce the average car!
14
The ball on top of a flagpole is called a 'truck'.
24
Sony researchers have developed a refrigerator that only opens when you smile.
9
Henry Ford produced the model T only in black because the black paint available at the time was the fastest to dry.
33

