A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140
Each day, there are over 120 million sexual intercourse taking place all over the world.
301
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
There are more nerve cells in the human brain than there are stars in the Milky Way.
349
If left alone, 70% of birthmarks gradually fade away.
193
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34