hard+coating
121Optical fiber — A bundle of optical fibers A TOSLINK fiber optic audio c …
122Egg (food) — Chicken egg redirects here. For the causality dilemma, see Chicken or the egg. On the left a chicken egg, the egg most commonly e …
123digestive system, human — Introduction the system used in the human body for the process of digestion. The human digestive system consists primarily of the digestive tract (alimentary canal), or the series of structures and organs through which food and liquids pass… …
124industrial polymers, major — Introduction chemical compounds used in the manufacture of synthetic industrial materials. In the commercial production of plastics, elastomers, man made fibres, adhesives, and surface coatings, a tremendous variety of polymers are… …
125Dental caries — This article is about dental caries in humans. To read about dental caries in other animals, please see dental caries (non human). Dental caries Classification and external resources Destruction of a tooth by cervical decay from dental caries.… …
126Head crash — A head crash in a modern drive. Note circular mark on the platter. A head crash is a hard disk failure that occurs when a read–write head of a hard disk drive comes in contact with its rotating platter, resulting in permanent and usually… …
127History of the floppy disk — 8 inch, 5¼ inch, and 3½ inch floppy disks Over the history of the floppy disk a number of different formats were used. Floppy disks have now been largely superseded by other storage media and by network file transfer. Contents …
128Lichtwellenleiter — Kunststoff Lichtwellenleiter LWL Patchkabel konfektionier …
