Another month, another brilliant panel, another romp through your mind bending questions. Physicists Tony Padilla and Toby Wiseman, archaeologist Emma Pomeroy and educator Andrew Morris help Chris Smith explain whether electricity in our bodies is the same as in our houses, how we can detect the collision of 2 black holes from here on Earth, and why Graham's number doesn't bear thinking about too deeply... Like this podcast? Please help us by supporting the Naked Scientists