It would take twenty new mid-size cars to generate the same amount of pollution that a mid-size 1960's car did.
20
More than a billion transistors are manufactured every second.
-25
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
Attics were invented in Attica.
43
Whale oil was used in automobile transmissions as late as 1973.
56
Mico headphones read your brainwaves and select music based on your state of mind.
7


