Sony researchers have developed a refrigerator that only opens when you smile.
9
A toaster uses almost half as much energy as a full-sized oven.
33
Any modern jet is capable of breaking the sound barrier.
34
Whale oil was used in automobile transmissions as late as 1973.
56
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
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
