A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
A small airplane can fly backwards.
75
The life boat was patented in 1845!
29
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
Google founders Sergey Brin and Larry Page have expressed their desire to see the search engine become artificial intelligence itself. To achieve that goal, they created the highly-protected “X lab.”
-7
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