Blue eyes are the most sensitive to light, dark brown the least sensitive.
105
Tae Kwon Do is only around 60 years old.
64
An Australian study found that homework is of little to no academic value to students in elementary and junior high schools.
32
It's impossible to kill yourself by holding your breath.
22
If you get water flowing fast enough, it can cut metal.
354
Only 8% of the world’s currency is physical money. The rest exists only on computers.
20
The Gate Tower Building skyscraper in Japan has a highway passing through its fifth, sixth and seventh floors.
7
Sudbury Valley School allows students to do whatever they want; no curriculum, tests, homework, or even classes unless requested. 82% of students get accepted to college, as opposed to the 63% national public school average.
21