accelerator rod
51Illinois — This article is about the U.S. state of Illinois. For other uses, see Illinois (disambiguation). State of Illinois …
52The Time Machine — This article is about the novel by H.G. Wells. For other uses, see The Time Machine (disambiguation). The Time Machine   …
53University of Waterloo — seal Motto Concordia cum veritate Motto in English In harmony with truth Established 1957 …
54Antiproton — Negaton redirects here. For the negatively charged particle in an atom that was once called a negaton, see Electron. Antiproton The quark structure of the antiproton. Classification Antibaryon Composition …
55Copper — For other uses, see Copper (disambiguation) …
56Poppet valve — A poppet valve is a valve consisting of a hole, usually round or oval, and a tapered plug, usually a disk shape on the end of a shaft also called a valve stem. The shaft guides the plug portion by sliding through a valve guide. In most… …
57Cessna 172 — Skyhawk Cessna 172M Role Civil utility aircraft …
58Overhead lines — This article is about the transmission of electrical power to road and rail vehicles. For transmission of bulk electrical power to general consumers, see Electric power transmission. For powerlines mounted on pylons, see overhead power line.… …
597 (number) — Seven redirects here. For other uses, see Seven (disambiguation). 7 −1 0 1 2 3 4 5 6 7 8 9 → List of numbers Integers …
60Railgun — A railgun is a purely electrical gun that accelerates a conductive projectile along a pair of metal rails using the same principles as the homopolar motor.Railguns use two sliding or rolling contacts [http://www.youtube.com/watch?v=M0YRslyGiOI… …
