This is so cool!
1.A killer whales heart beats 30 times a minute under water, 60 times a minute on the surface.
2.In ten minutes, a hurricane releases more energy than all the world's nuclear weapons combined!
3.Lions in the wild live for around 12 years.
4.The first household refrigerators cost about $16,000, in today's money!
5.According to Gaming Law, casinos have to stock enough cash to cover all the chips on the 'floor'.
6.A cow gives nearly 200,000 glasses of milk in her lifetime.
7.Cleopatra had four children, namely Caesarion aka Ptolemy Caesar (son of Julius Caesar) and Alexander Helios, Cleopatra Selene II and Ptolemy Philadelphus (children of Mark Antony).
8.Halle Berry?s stunt double, in the movie ?Catwoman?, is a man.
9.You have no sense of smell when you're sleeping!
10.Sound at the right vibration can bore holes through a solid object.