• It cost 7 million dollars to build the Titanic and 200 million to make a film about it .
• The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
• The only 2 animals that can see behind itself without turning its head are the rabbit and the parrot.
• Every time you sneeze some of your brain cells die.
• When you blush, the lining of your stomach also turns red! wow, what about heart?
• It takes about 20 seconds for a red blood cell to circle the whole body.