Clip: Season 40 Episode 2 | 2m 58s
The world’s first industrial process likely began with the Neanderthals. In this video, watch as NOVA reenacts the Neanderthal technique of pitch extraction through a complex called dry distillation.
The full episode is no longer available for online streaming. Why?
Please continue to enjoy extra(s) from this episode. The full episode is still available for purchase through the "Buy Now" links.