We watched the second episode of the "Connections" series titled "Death in the Morning." This episode began with a touchstone with which one could ascertain the purity of gold. This led to the use of coinage as a medium of exchange and the math of money. It explored how the triangular "lateen" sail and stern-post rudder expanded seaborne transportation and trade. It finally showed how the study of clouds in the 1700's led to the development of the nuclear bombs dropped on Hiroshima and Nagasaki in 1945.