Any modern jet is capable of breaking the sound barrier.
34
The ball on top of a flagpole is called a 'truck'.
24
About 39,000 gallons of water are used to produce the average car!
14
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 oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
The blueprint for a floating city has just been approved by the largest port construction and design company in China. It's entirely self-sustainable, and extends underwater.
2