Butterflies in the Rain and More Memories

A drop of rain hitting a butterfly is the equivalent of a bowling ball hitting a human. So how do they survive in the rain? New research reveals a fascinating answer. Jeff and Anthony discuss how the butterfly's natural defenses from rain can be applied to human beings. Then, what if the memory could be stimulated by external means? Anthony and Jeff debate the usefulness of trans-cranial stimulation, based on a new study.