graphite brushes

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• graphite — graphitic /greuh fit ik/, adj. /graf uyt/, n. a very common mineral, soft native carbon, occurring in black to dark gray foliated masses, with metallic luster and greasy feel: used for pencil leads, as a lubricant, and for making crucibles and… …   Universalium

• Graphite — For other uses, see Graphite (disambiguation). Graphite Graphite specimen General Category Native element mineral …   Wikipedia

• graphite — A form of carbon used in making brushes for motors and generators and as a lubricant …   Dictionary of automotive terms

• electric motor — motor (def. 4). [1885 90] * * * Introduction       any of a class of devices that convert electrical energy to mechanical energy, usually by employing electromagnetic phenomena.       Most electric motors develop their mechanical torque by the… …   Universalium

• Microbial electrolysis cell — A microbial electrolysis cell (MEC) is a technology related to Microbial fuel cells (MFC). Whilst MFC s produce an electric current from the microbial decomposition of organic compounds, MEC s partially reverse the process to generate hydrogen or …   Wikipedia

• drawing — /draw ing/, n. 1. the act of a person or thing that draws. 2. a graphic representation by lines of an object or idea, as with a pencil; a delineation of form without reference to color. 3. a sketch, plan, or design, esp. one made with pen, pencil …   Universalium

• Writing implement — A writing implement or writing instrument is an object used to produce writing. Most of these items can be also used for other functions such as painting, drawing and technical drawing, but writing instruments generally have the unique… …   Wikipedia

• Brush (electric) — A brush is a device which conducts current between stationary wires and moving parts, most commonly in a rotating shaft. Typical applications include electric motors, alternators and electric generators. EtymologyFor an electric motor or… …   Wikipedia

• Pencil — This article is about the handwriting instrument. For other uses, see Pencil (disambiguation). HB graphite pencils A pencil is a …   Wikipedia

• Allotropes of carbon — Eight allotropes of carbon: a) Diamond, b) Graphite, c) Lonsdaleite, d) C60 (Buckminsterfullerene or buckyball), e) C540, f) C70, g) Amorphous carbon, and h) single walled carbon nanotube or buckytube. This is a list of the allotropes of carb …   Wikipedia

• Drawing — For other uses, see Drawing (disambiguation). Male nude by Annibale Carracci, 16th century Drawing is a form of visual art that makes use of any number of drawing instruments to mark a two dimensional medium. Common instruments include graphite… …   Wikipedia