unmeasured
41Christadelphians — Main article Literature Bible Companion | Elpis Israel | Christendom Astray …
42Drake equation — This article is about Frank Drake s equation. For the Tub Ring music album, see Drake Equation (album). The Drake equation (sometimes called the Green Bank equation or the Green Bank Formula) is an equation used to estimate the number of… …
43Karl Popper — Infobox Philosopher region = Western Philosophy era = 20th century philosophy color = #B0C4DE name = Sir Karl Raimund Popper CH FRS FBA birth = 28 July 1902 Vienna, Austria death = death date and age|df=yes|1994|9|17|1902|7|28 London, England… …
44Somalia — Somali Republic Jamhuuriyadda Soomaaliya جمهورية الصومال Jumhūriyyat as Sūmāl …
45Causality — (but not causation) denotes a necessary relationship between one event (called cause) and another event (called effect) which is the direct consequence (result) of the first. [http://dictionary.reference.com/search?q=Causality x=35 y=25 Random… …
46Grandfather paradox — The grandfather paradox is a proposed paradox of time travel, first described by the science fiction writer René Barjavel in his 1943 book Le Voyageur Imprudent ( The Imprudent Traveller ).cite book | first = René | last = Barjavel | authorlink …
47Geostatistics — evolved in mineral exploration and mining of minerals, ores, and coals. It is currently applied in disciplines such as petroleum geology, hydrogeology, hydrology, meteorology, oceanography, geochemistry, geography, forestry, environmental control …
48Antler — This article is about the antlers of deer and related species. For other uses, see Antler (disambiguation). Velvet covers a growing antler and provides it with blood, supplying oxygen and nutrients. Antlers are the usually large, branching bony… …
49PID controller — A block diagram of a PID controller A proportional–integral–derivative controller (PID controller) is a generic control loop feedback mechanism (controller) widely used in industrial control systems – a PID is the most commonly used feedback… …
50Epidemiology — For the Community episode, see Epidemiology (Community). Epidemiology is the study of health event, health characteristic, or health determinant patterns in a population. It is the cornerstone method of public health research, and helps inform… …
