NYC's Metropolitan Transit Authority (MTA) dumps old subway cars into the ocean to serve as artificial reef.
8
People who laugh more are better able to tolerate pain - both physical and emotional.
36
The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
244
Cash machines are as dirty as public toilets.
175
When glass breaks, the cracks move at speeds of up to 3,000 miles per hour.
423
Music is as addictive to the brain as sex and drugs.
27
It's impossible to kill yourself by holding your breath.
22
The average cough comes out of your mouth at 60 miles per hour.
126