A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
Kleenex tissues were originally used as filters in gas masks.
46
More than a billion transistors are manufactured every second.
-25
The Google driverless car has only encountered two accidents. The first it was rear ended at a stop sign, and the second was when a human was behind the wheel.
7
Any modern jet is capable of breaking the sound barrier.
34
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
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