First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
The life boat was patented in 1845!
29
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
Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
144
A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
More than a billion transistors are manufactured every second.
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