Starfish can regrow lost arms, and salamanders can sprout new limbs. So why can't we?
110 years ago Albert Einstein published a theory that revolutionized the way we think about the universe. In this video you will be shown how to prove its two postulates using easy-to-understand real-world experiments, and how even the simplest understanding of quantum mechanics can be used to wrap your mind around why time must slow down the faster an object moves.
