An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
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
The life boat was patented in 1845!
29
A fully loaded supertanker traveling at normal speed takes a least twenty minutes to stop.
27
Mico headphones read your brainwaves and select music based on your state of mind.
7
Surgeons who grew up playing video games make 37 percent fewer mistakes.
250
Castor oil is used as a lubricant in jet planes.
-5