air cushion device
51Water hammer — (or, more generally, fluid hammer) is a pressure surge or wave resulting when a fluid in motion is forced to stop or change direction suddenly (Momentum Change). Water hammer commonly occurs when a valve is closed suddenly at an end of a pipeline …
52Coordinate-measuring machine — A coordinate measuring machine (CMM) is a device for measuring the physical geometrical characteristics of an object. This machine may be manually controlled by an operator or it may be computer controlled. Measurements are defined by a probe… …
53Christopher Cockerell — Memorial to Sir Christopher Cockerell at Hythe …
54Hovercar — A hovercar is a transport vehicle appearing in works of science fiction. It is used for personal transportation in the same way a modern automobile is employed.It is incapable of flying but does elevate itself some distance from the ground… …
55Nanoimprint lithography — is a method of fabricating nanometer scale patterns. It is a simple nanolithography process with low cost, high throughput and high resolution. It creates patterns by mechanical deformation of imprint resist and subsequent processes. The imprint… …
56Metal Gear (weapon) — For the series named after the weapon, see Metal Gear. For the original video game titled Metal Gear, see Metal Gear (video game). From left to right: Metal Gear TX 55, Metal Gear D, and Metal Gear REX. Metal Gear (メタルギア …
57Seismic retrofit — Seismic retrofitting is the modification of existing structures to make them more resistant to seismic activity, ground motion, or soil failure due to earthquakes. Other retrofit techniques are applicable to areas subject to tropical cyclones,… …
58Metal Gear (fictional mecha weapon) — Metal Gear is the name for a series of fictional mecha in the Metal Gear series. [Jeremy Parish, “Metal Gear,” Electronic Gaming Monthly 225 (January 2008): 93.] [ Snakes and Gears: A Metal Gear Overview, Game Informer 182 (June 2008): 107.]… …
59United States Navy — USN redirects here. For other uses, see USN (disambiguation). United States Navy Un …
60McDonnell XF-85 Goblin — XF 85 Goblin XF 85 serial number 46 523 in the …
