Originally, BMW was an airplane engine manufacturer.
69
A toaster uses almost half as much energy as a full-sized oven.
33
The cigarette lighter was invented before the match.
210
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
Kleenex tissues were originally used as filters in gas masks.
46
Castor oil is used as a lubricant in jet planes.
-5