The electric chair was invented by a dentist!
122
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
A fully loaded supertanker traveling at normal speed takes a least twenty minutes to stop.
27
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
Originally, Nintendo was a playing card manufacturer.
70
Any modern jet is capable of breaking the sound barrier.
34
It would take twenty new mid-size cars to generate the same amount of pollution that a mid-size 1960's car did.
20