Balsa wood is classified as a hard wood!
41
The storage capacity of human brain exceeds 4 Terrabytes.
140
Sound travels about 4 times faster in water than in air.
408
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79