An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
Kleenex tissues were originally used as filters in gas masks.
46
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7
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
The average car produces a pound of pollution every 25 miles!
18
Energy is being wasted if a toaster is left plugged in after use.
21
Whale oil was used in automobile transmissions as late as 1973.
56