A lake filled with water so toxic that it can turn whatever touches it to stone? Sounds like something straight out of a fictional horror story—or a Medusa myth—but guess what, IT’S NOT! At least not according to this article at Smithsonian.com. Lake Natron, located in Tanzania, in east Africa, is comprised of an odd combination of salt, sodium carbonate decahydrate (soda ash), and sodium bicarbonate (baking soda) which makes it extremely alkaline. This means it contains water with ph levels of 10.5 or even higher (um, excuse me, my nerdy is showing). Let[...]