The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Pumice is the only rock that floats on water.
14
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Out of all the senses, smell is most closely linked to memory.
146
The force of a suction cup is calculated using F=AP.
15
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9