The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60
Sony researchers have developed a refrigerator that only opens when you smile.
9
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
The cigarette lighter was invented before the match.
210
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
Super Nintendo and Sega Genesis had an online multiplayer mode.
-2
Jumbo jets use 4,000 gallons of fuel to take off.
19