Pumice is the only rock that floats on water.
14
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Out of all the senses, smell is most closely linked to memory.
146
Each day, up to 150 species of life become extinct.
-23
The storage capacity of human brain exceeds 4 Terrabytes.
140