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71Geocaching — International Geocaching Logo Nickname(s) Caching First played May 3, 2000 Clubs Yes Characteristics …
72History of astronomy — History of science …
73Compound interest — The effect of earning 20% annual interest on an initial $1,000 investment at various compounding frequencies Compound interest arises when interest is added to the principal, so that from that moment on, the interest that has been added also… …
74Law of total tricks — In contract bridge, the Law of total tricks (abbreviated as LoTT) is a guideline used to help determine how high to bid in a competitive auction. It is not really a law (because counterexamples are easy to find) but a method of hand evaluation… …
75Wiki journalism — is a form of participatory journalism or crowdsourcing, which uses wiki technology to facilitate collaboration between users. The largest example of wiki journalism is Wikinews. Examples Wikinews was launched in 2004 as an attempt to build an… …
76Mary Lou Fulton Institute and Graduate School of Education — The Mary Lou Fulton Institute and Graduate School of Education (known as FIGSE) at Arizona State University was established in 1954 and disestablished in 2010 by the Arizona Board of Regents. The disestablishment of FIGSE was highly controversial …
77Pytheas — of Massilia (Ancient Greek Πυθέας ὁ Μασσαλιώτης), 4th century BC, was a Greek geographer and explorer from the Greek colony Massilia (today Marseille, France). He made a voyage of exploration to northwestern Europe possibly no earlier than around …
78Comfort zone — This article is about the psychological meaning. For other uses, see Comfort zone (disambiguation). The comfort zone is a behavioural state within which a person operates in an anxiety neutral condition, using a limited set of behaviours to… …
79Argon–argon dating — Argon argon (or 40Ar/39Ar) dating is a radiometric dating method invented to supersede potassium argon (K Ar) dating in accuracy. In this technique, the decay of 40K to 40Ar* (* indicates radiogenic) is used to date geological events,… …
80Napier, Western Cape — This article is about the Town Napier in South Africa. For other meanings, see Napier (disambiguation). Napier, Western Cape The NG Kerk (Dutch reformed church) on the main street of Napier Country …
