Sound travels about 4 times faster in water than in air.
408
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Cold water weighs more than hot water.
93
Research indicates that plants grow healthier when they are stroked.
173
According to studies, men change their minds two to three times more often than women.
72
Your brain is 80% water.
525
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Diamonds can be shattered with a hammer.
-104