Artificial+magnet
41Electric motor — For other kinds of motors, see motor (disambiguation). For a railroad electric engine, see electric locomotive. Various electric motors. A 9 volt PP3 transistor battery is in the center foreground for size comparison. An electric motor converts… …
42Reaction Hero — Infobox Album | Name = Rection Hero Type = Remix Album Artist = Little Nobody + Accomplices Released = August 2001 Recorded = Genre = Electronic, hip hop, techno Length = Double CD 140 mins. Label = IF? Records Producer = Andrez Bergen Reviews =… …
43quantum mechanics — quantum mechanical, adj. Physics. a theory of the mechanics of atoms, molecules, and other physical systems that are subject to the uncertainty principle. Abbr.: QM Cf. nonrelativistic quantum mechanics, relativistic quantum mechanics. [1920 25]… …
44Phonograph — Turntable redirects here. For other uses, see Turntable (disambiguation). Edison cylinder phonograph ca. 1899 …
45Earth's magnetic field — Computer simulation of the Earth s field in a normal period between reversals.[1] The tubes represent magnetic field lines, blue when the field points towards the center and yellow when away. The rotation axis of the Earth is centered and… …
46Microscopy — is the technical field of using microscopes to view samples and objects that cannot be seen with the unaided eye (objects that are not within the resolution range of the normal eye). There are three well known branches of microscopy, optical,… …
47Scientific Revolution — The period which many historians of science call the Scientific Revolution can be roughly dated as having begun in 1543, the year in which Nicolaus Copernicus published his De revolutionibus orbium coelestium (On the Revolutions of the Heavenly… …
48Space fountain — The Hyde design for a space fountain A space fountain is a proposed form of space elevator that does not require the structure to be in geostationary orbit, and does not rely on tensile strength for support. In contrast to the original space… …
49Cleveland Clinic — The original Clinic building opened its doors …
50Maxwell's equations — For thermodynamic relations, see Maxwell relations. Electromagnetism …
