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
Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308
Jumbo jets use 4,000 gallons of fuel to take off.
19