There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
Originally, BMW was an airplane engine manufacturer.
69
Surgeons who grew up playing video games make 37 percent fewer mistakes.
250
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
Whale oil was used in automobile transmissions as late as 1973.
56