Medieval technology that its potential was fully achieved. Artesian well (1126) A thin rod with a hard iron cutting edge is placed in the bore hole and repeatedly struck with a hammer, underground water pressure forces the water up the hole without pumping. Artesian wells are named after the town of Artois in France, where the first one was drilled by Carthusian monks in 1126. Central heating through underfloor channels (9th century) In the early medieval Alpine upland, a simpler central heating system where heat travelled through underfloor channels from the furnace room replaced the Roman hypocaust at some places. In Reichenau
Reaction: A Portrait of a Society in Crisis by the Trudeau government. The film summarizes the events of the crisis and contains TV footage of Trudeau speaking, explaining his decision to make use of the War Measures Act. The film captures a group watching the footage in Westmount, a wealthy enclave on the Island of Montreal. The group argues over whether what happened in Quebec could also happen outside of the province. The professors in the group perceive their political weakness as a minority in Quebec. The fears discussed are that the United States will intervene in Canadian affair or that Quebec nationalism will leave them isolated in