Dc Comics

Kryptonite is a green crystal-like material found on Superman's home planet - Krypton. The radiation from the rock weakens Superman. Professor Bill Williams tells us if there are any real life… Audio

Wonder Woman can stop bullets with her Feminum bracelets but, apart from needing the reflexes to achieve this, could any material that's light enough to wear on your wrists do that?  Audio

Rodrigo Martinez Gazoni chats with Bryan Crump about the scientific plausibility of Batman's cape and some of his other gadgets. Audio