One of the coolest things from Hitchhiker’s Guide To The Galaxy was the Babel fish. If you never read the books, it’s a little creature (well, a fish, but whatever) that slips inside your ear and ...

The Babel fish, from Douglas Adams' magnificent Hitchhiker's Guide to the Galaxy, is one of those concepts that sticks in your mind. Much like the fish itself, really; in the book, it's a small yellow ...