Entertainment / Literature / Nb: Gallnuts aren???‚¬?„?t actually nuts. They are swellings that form in the bark of an oak tree after it has been stung by an insect laying its eggs. The black seepage from this swellings forms the primary ingredient in medieval manuscript ink in Western Europe, though in some Mediterranean regions, squid ink was used. In poorer monasteries, ash diluted in water might be used as a cheap substitute.
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Technology / Television (TV) / Dual Lnb: A dual LNB has two coax connections. You can operate up to two satellite television receivers with a dual LNB. MORE
Technology / Motors / Electrical Unbalance: In a 3 phase supply, where the voltages of the three different phases are not exactly the same. Measured in % of unbalance. MORE