In the early 1960's, Porsche commercially manufactured farm tractors.
24
A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-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
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
Attics were invented in Attica.
43
There's a phone app called RoboRoach that allows you to remotely control a cockroach through a chip that you to manually implant into the unwitting critter.
10
Castor oil is used as a lubricant in jet planes.
-5