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
Castor oil is used as a lubricant in jet planes.
-5
Whale oil was used in automobile transmissions as late as 1973.
56
In the early 1960's, Porsche commercially manufactured farm tractors.
24
Jumbo jets use 4,000 gallons of fuel to take off.
19
Energy is being wasted if a toaster is left plugged in after use.
21
Originally, Nintendo was a playing card manufacturer.
70