There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
The average car produces a pound of pollution every 25 miles!
18
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
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
Castor oil is used as a lubricant in jet planes.
-5
The electric chair was invented by a dentist!
122
Sony researchers have developed a refrigerator that only opens when you smile.
9
Contrary to popular belief, putting sugar in a car's gas tank will NOT ruin its engine.
25