Dr Karl was discussing his memoir A Periodic Tale: My Sciencey Memoir, supplemented by audiovisual images of his remarkable life.

How did a shy Polish immigrant kid - Karl Sven Woytek Sas Konkovitch Matthew Kruszelnicki - evolve into the fabulously eccentric Dr Karl? The only child of Holocaust survivors who fled to Australia in 1950, Karl has always forged his own destiny in an idiosyncratic way. Before he became one of the world's favourite scientific storytellers, he ambled through a convoluted cacophony of a career.