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 Justice A Certain Justice A Certain Justice is an Adam Dalgliesh novel by P. D. James, published in 1997. A three episode 1998 TV mini-series was made based upon the novel. Venetia Aldridge is a brilliant criminal lawyer who is set to take over as the Head of Chambers in Pawlet Court, London. She successfully defends Garry Ashe against the charge of the murder of his aunt but is unprepared when her daughter flaunts her emotional involvement with him. Venetia is murdered in her office soon after her trial. Adam Dalgliesh investigates what appears to be an inside job. Things are