Japanese engineers were asked to redesign the front end of the Bullet Train because it carried enough speed to create a sonic boom whenever it exited a tunnel. Residents could feel the blast from miles away.
11
Blue eyes are the most sensitive to light, dark brown the least sensitive.
105
One human hair can support 3 ounces.
191
Mentally doing a task makes you better at it. Your mind can barely tell the difference.
18
Each year, more than 50,000 people are injured by jewelry in the U.S.
29
The weight of air in a milk glass is about the same as the weight of one aspirin tablet.
63
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
Babies start dreaming even before they're born.
134