Robert tells Margaret how to scientifically shatter a bridge the T.E. Lawrence way, and how Lawrence crippled the transportation infrastructure of a mighty empire using some guys with camels and sacks of flour.

Part Four: Francis Galton: Inventor of Eugenics
53:28

Part Three: Francis Galton: Inventor of Eugenics
1:16:39

Part Two: Francis Galton: Inventor of Eugenics
1:10:54