In the latest installment of the animated interview series The Experimenters, physicist Richard Feynman gives a fascinating account of his childhood, explaining how his father interested him in science, his mother's reaction to his experiments, and the one time he had trouble understanding a concept in math.

This series from Blank on Blank, which adds animation to audio interviews with various innovators, had proved both charming and enlightening, taking us inside the minds of Buckminster Fuller and Jane Goodall. Here, we have the added benefit of seeing just what about solid geometry threw off Feynman: how the shapes were represented on paper and chalkboards. It's especially interesting given that Feynman himself was always looking to explain physics concepts in ways that were clear and interesting. This installment uses audio from a 1966 interview and was animated by Paul Ruttledge.