This week’s show is a series of convergences, but none of them are harmonic. Daniel Heller-Roazen tells us about Pythagoras and the fifth hammer and why Kant and Kepler both considered themselves Pythagoreans. Quintan Ana Wikswo explains why she uses nasty nazi cameras in her art. Nina Mitchell explains what happened when her mind went pop! and Paola Antonelli gives us a tour of her latest MoMA blockbuster Talk To Me. PLUS your host tries to make some money doing experimental medical testing.