magnet filter element
41Timeline of historic inventions — The timeline of historic inventions is a chronological list of particularly important or significant technological inventions. Note: Dates for inventions are often controversial. Inventions are often invented by several inventors around the same… …
42Sonora — For other uses, see Sonora (disambiguation). Sonora Estado Libre y Soberano de Sonora   State   …
43Crystal radio — Crystal set redirects here. For the Australian rock band, see The Crystal Set. A modern reproduction of an antique crystal set. It is tuned to different stations by moving the sliding contact (right) up and down the tuning coil (red). The device… …
44Tree of Knowledge System — The Tree of Knowledge (ToK) System is a novel, theoretical approach to the unification of psychology developed by professor Gregg Henriques of James Madison University.The outline of the system was published in 2003 in Review of General… …
45Evolutionary history of life — Although evidence of early life is scarce and often difficult to interpret, it appears that life appeared on Earth relatively soon (on the geologic time scale) after the planet had cooled enough for liquid water to be present. The dominant theory …
46Magnetic nanoparticles — are a class of nanoparticle which can be manipulated using magnetic field. Such particles commonly consist of magnetic elements such as iron, nickel and cobalt and their chemical compounds. While nanoparticles are smaller than 1 micrometer in… …
47LIGA-Technik — Das deutsche Akronym LIGA oder LiGA (steht für die Verfahrensschritte: Lithographie, Galvanik und Abformung) bezeichnet ein Verfahren welches auf einer Kombination von Tiefenlithographie, Galvanik und Mikroabformung basiert. Das LIGA Verfahren… …
48Mars Exploration Rover — Künstlerische Darstellung eines Marsrovers Missionsverlauf Die …
49Polarizer — Ein Polarisator ist ein Bauteil, um elektromagnetische Wellen (häufig Licht) mit einer definierten meist linearen Polarisation herzustellen. Inhaltsverzeichnis 1 Funktionsweisen 1.1 Polarisation durch Dichroismus 1.2 Polarisation durch… …
50Liste Des Groupes De Metal Par Date De Formation — Groupes par ordre alphabétique Groupes par pays Groupes par genre Groupes par date de formation Liste des groupes de metal par années: Sommaire 1 Années 60 1.1 1965 1.2 …
