The hunt for Bigfoot, how a beer or two can boost attractiveness and the brain basis of imagination go under the lens this week when Ben and Diana also meet the chemist-turned-rapper behind the contraceptive pill and the "Superheroes of Science" a concept album where science mixes with music. Plus, in an Olympic Kitchen Science, Ben and Dave tune in to a baseball bat's sweet spot... Like this podcast? Please help us by supporting the Naked Scientists)