How Urine Can Be Used to Make Gunpowder (and Other Interesting Pee Facts)

It turns out that something that is (usually) flushed down the toilet can actually be recycled into a number of useful products. Comprised of water, calcium, chloride, potassium, sodium, magnesium, urea, creatinine, nitrogen, uric acid, ammonium, sulphates and phosphates, urine’s beneficial ingredients can be separated from its waste, and used to make fertilizer, medicine, brain cells and, yes, gunpowder.

Throughout history, some smart and adventurous people with strong stomachs have devised a number of ingenuous uses for their pee.