linear sliding bearing
31Rolamite — is a technology for very low friction bearings developed by Sandia National Laboratories in the 1960s. Invented by Sandia engineer Donald F. Wilkes and patented by him on June 24, 1969 [cite web|last=Wilkes|first=Donald F.|title=US Patent… …
32chemistry — /kem euh stree/, n., pl. chemistries. 1. the science that deals with the composition and properties of substances and various elementary forms of matter. Cf. element (def. 2). 2. chemical properties, reactions, phenomena, etc.: the chemistry of… …
33printmaking — /print may king/, n. the art or technique of making prints, esp. as practiced in engraving, etching, drypoint, woodcut or serigraphy. [1925 30; PRINT + MAKING] * * * Art form consisting of the production of images, usually on paper but… …
34List of snowboard tricks — Snowboard tricks are aerials or maneuvers performed on snowboards for fun, or in competitions. Most often, these maneuvers are performed on obstacles such as jumps, halfpipes, quarterpipes, hips, handrails, funboxes, or ledges, or on the surface… …
35GEOGRAPHICAL SURVEY — Names The name Ereẓ Israel (the Land of Israel) designates the land which, according to the Bible was promised as an inheritance to the Israelite tribes. In the course of time it came to be regarded first by the Jews and then also by the… …
36Window — This article is about the part of a building. For the Microsoft operating system, see Microsoft Windows. For other uses, see Window (disambiguation) and Windows (disambiguation). Pair of windows, Old Ship Church, Hingham, Massachusetts …
37railroad — /rayl rohd /, n. 1. a permanent road laid with rails, commonly in one or more pairs of continuous lines forming a track or tracks, on which locomotives and cars are run for the transportation of passengers, freight, and mail. 2. an entire system… …
38Pneumatic motor — The Victor Tatin airplane of 1879 used a compressed air engine for propulsion. Original craft, at Musée de l Air et de l Espace …
39Relief — For other uses, see Relief (disambiguation). A Persian mid relief (mezzo rilievo) from the Qajar era, located at Tangeh Savashi in Iran, which might also be described as two stages of low relief. Relief is a sculptural technique. The term relief… …
40Electricity — (from the Greek word ήλεκτρον, (elektron), meaning amber, and finally from New Latin ēlectricus , amber like ) is a general term that encompasses a variety of phenomena resulting from the presence and flow of electric charge. These include many… …
