Car airbags kill 1 person for every 22 lives that they save.
80
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
More than a billion transistors are manufactured every second.
-25
Castor oil is used as a lubricant in jet planes.
-5
Surgeons who grew up playing video games make 37 percent fewer mistakes.
250
UFO sightings have reduced by over 80% since the introduction of smartphones and public access to HD video.
2
A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4