Jumbo jets use 4,000 gallons of fuel to take off.
19
The average car produces a pound of pollution every 25 miles!
18
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
In the early 1960's, Porsche commercially manufactured farm tractors.
24
Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0
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
Energy is being wasted if a toaster is left plugged in after use.
21
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7