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
A Certain Smile A Certain Smile A Certain Smile (known in French as Un certain sourire), written in a two-month period then published in 1956, is Françoise Sagan's second book. It tells of a student's love affair with a middle-aged man. The novel is about Dominique, a bored twenty-year-old law student at the Sorbonne in mid-1950s Paris. The back of the 1986 Penguin English translation describes Dominique as young, thin and cynical. Dominique, a student in Paris has a lover, Bertrand, who one day introduces her to his businessman uncle Luc and his wife Françoise. Both Luc and Dominique are aware of their