accurate check
71Anti-spam techniques — To prevent e mail spam (aka unsolicited bulk email), both end users and administrators of e mail systems use various anti spam techniques. Some of these techniques have been embedded in products, services and software to ease the burden on users… …
72Advance-fee fraud — African sting An advance fee fraud is a confidence trick in which the target is persuaded to advance sums of money in the hope of realizing a significantly larger gain.[1] Among the variations on this type of scam are the Nigerian Letter (also… …
73Electronic tuner — Pocket sized Korg chromatic LCD tuner, with simulated analog indicator needle The term electronic tuner can refer to a number of different things, depending which discipline you wish to study. In the Discipline of radio frequency electronics an… …
74Geography in medieval Islam — Islamic geography includes the advancement of geography, cartography and earth sciences under various Islamic civilizations. During the medieval ages, Islamic geography was driven by a number of factors: the Islamic Golden Age, parallel… …
75Valve — This article is about the flow control device. For the game developer, see Valve Corporation. For the electronic component, see Vacuum tube. For other uses, see Valve (disambiguation). These water valves are operated by handles. A valve is a… …
76Chess — This article is about the Western board game. For other chess games or other uses, see Chess (disambiguation). Chess From left to right: a whit …
77Pendulum clock — A pendulum clock is a clock that uses a pendulum, a swinging weight, as its timekeeping element. From its invention in 1656 by Christiaan Huygens until the 1930s, the pendulum clock was the world s most accurate timekeeper, accounting for its… …
78Overdraft — I warn you, Sir! The discourtesy of this bank is beyond all limits. One word more and I I withdraw my overdraft! Cartoon from Punch Magazine Vol. 152, June 27, 1917 An overdraft occurs when money is withdrawn from a bank account and the… …
79biblical literature — Introduction four bodies of written works: the Old Testament writings according to the Hebrew canon; intertestamental works, including the Old Testament Apocrypha; the New Testament writings; and the New Testament Apocrypha. The Old… …
80Rail transport modelling — Rail transport Operations Track Maintenance High speed Gauge Stations …
