Fireball is a ragingly popular, sickly sweet elixir that's taken America by storm. Fireball is also made with propylene glycol, a common ingredient in some antifreezes. That's an unsettling fact, so unsettling that Norway, Sweden, and Finland just recalled the booze. But it's not necessarily as unsettling as it sounds.
You may know that fiber optic cables gather up light and deliver it from one end to the other without letting it shine out the sides. But did you know that you can do much the same thing with water (and better with other liquids)?