Wormholes and Einstein
The laser was invented 60 years ago, which sounds like an eternity to me. I can’t remember that far back, because I wasn’t born yet and nor were my parents. But I work with lasers every day, all day long, so I know almost everything about that time. Well, “everything” books and biographies and articles. I would have loved to have been a lab assistant there in 1960 when American physicist Theodore Maiman demonstrated the first operable laser. He saw with his own eyes that the light beam behaved in exactly the same way that Albert Einstein had described in his theory of stimulated emission more than 40 years earlier!