polar automatic weather station
51Radio-frequency identification — (RFID) is a technology that uses radio waves to transfer data from an electronic tag, called RFID tag or label, attached to an object, through a reader for the purpose of identifying and tracking the object. Some RFID tags can be read from… …
52international relations — a branch of political science dealing with the relations between nations. [1970 75] * * * Study of the relations of states with each other and with international organizations and certain subnational entities (e.g., bureaucracies and political… …
53List of inventors — This is a list of inventors. See also: List of scientists, Timeline of invention, List of inventions named after people, List of inventors killed by their own inventions, and . Alphabetical list compactTOC NOTOC A * Vitaly Mikhaylovich Abalakov,… …
54horticulture — horticultural, adj. horticulturist, n. /hawr ti kul cheuhr/, n. 1. the cultivation of a garden, orchard, or nursery; the cultivation of flowers, fruits, vegetables, or ornamental plants. 2. the science and art of cultivating such plants. [1670… …
55December 2004 — December 2004: ← – January – February – March – April – May – June – July – August – September – October – November – December → Contents 1 Events 1.1 Deaths in December …
56de Havilland Canada DHC-6 Twin Otter — DHC 6 Twin Otter A West Coast Air DHC 6 Twin Otter floatplane. Role …
57Biodiversity — Some of the biodiversity of a coral reef …
58Mexico City — This article is about the capital of Mexico, coterminous with the Federal District. For other uses, see Mexico City (disambiguation). Mexico City   City   Ciudad de México City of Mexico …
59Airship — For other uses, see Airship (disambiguation). Dirigible redirects here. For the 1931 film, see Dirigible (film). Not to be confused with Balloon (aircraft) or Blimp. Airship …
60Robotic spacecraft — An artist s interpretation of the MESSENGER spacecraft at Mercury A robotic spacecraft is a spacecraft with no humans on board, that is usually under telerobotic control. A robotic spacecraft designed to make scientific research measurements is… …
