Kleenex tissues were originally used as filters in gas masks.
46
Sony researchers have developed a refrigerator that only opens when you smile.
9
The life boat was patented in 1845!
29
Any modern jet is capable of breaking the sound barrier.
34
More steel in the United States is used to make bottle caps than to manufacture automobile bodies.
55
Scientists in China have built a prototype high-speed maglev train that is theoretically capable of reaching speeds of up to 1,800 mph (2,900 km/h).
1
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
A toaster uses almost half as much energy as a full-sized oven.
33