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 Magical Index October 29, 2008. A single for "Masterpiece" was released on February 4, 2009. The first opening theme song of "A Certain Magical Index II" is titled "No Buts!" by Kawada and the single was released on November 3, 2010. The second opening theme is titled "See Visions" by Kawada and was released on February 16, 2011. The first ending theme song is titled "Magic∞World" by Maon Kurosaki and the single was released on November 24, 2010, and was used for the first 13 episodes of the season. The second ending theme is titled by Kurosaki and was released on March