Human Body Ingredients via imaginaryfoundation: 'The average human has approximately 100 trillion cells and each cell is made of approximately 100 trillion atoms, each of which were originally created in the center of a star.' Here it is by mass: http:/
Breathe underwater with the same level of ease as a fish with the revolutionary underwater oxygen respirator. This device allows you to swim alongside your underwater chums without having to carry a bulky oxygen tank. It's like fish gills for humans.