braking frequency
91Space elevator safety — There are many safety issues associated with the construction and operation of a space elevator. A space elevator would present a considerable navigational hazard, both to aircraft and spacecraft. Aircraft could be dealt with by means of simple… …
92radioactivity — /ray dee oh ak tiv i tee/, n. Physics, Chem. the phenomenon, exhibited by and being a property of certain elements, of spontaneously emitting radiation resulting from changes in the nuclei of atoms of the element. Also called activity. [1895… …
93x-ray — /eks ray /, n. Also, x ray, X ray. 1. Physics. a. Often, x rays. a form of electromagnetic radiation, similar to light but of shorter wavelength and capable of penetrating solids and of ionizing gases. b. such radiation having wavelengths in the… …
94Colin Morley — Prof Colin Morley updating his laboratory notebook 1980s Colin Morley, FRCP, FRCPCH, FRACP, is a British/Australian academic Neonatologist. He was the Professor Director of Neonatal Medicine at The Royal Women’s Hospital and The Royal Children’s… …
95Light rail — For specific light rail systems, many of which use the words light rail as part of their name, see List of tram and light rail transit systems. Edmonton Light Rail Transit in Edmonton, Alberta, Canada …
96Intelligent transportation system — The term intelligent transportation system (ITS) refers to efforts to add information and communications technology to transport infrastructure and vehicles in an effort to manage factors that typically are at odds with each other, such as… …
97Orthogonality — The line segments AB and CD are orthogonal to each other. Orthogonality occurs when two things can vary independently, they are uncorrelated, or they are perpendicular. Contents 1 Mathematics …
98Accelerometer — An accelerometer is a device for measuring acceleration and gravity induced reaction forces.Single and multi axis models are available to detect magnitude and direction of the acceleration as a vector quantity [http://www.analog.com/en/technical… …
99List of unusual units of measurement — For units of measure primarily used in countries where English is not the main language, see the article specific to that country, a list of which can be found in the systems of measurement article. An unusual unit of measurement is a unit of… …
100Namma Metro — ನಮ್ಮ ಮೆಟ್ರೊ Info Locale Bangalore, India Transit type Rapid transit …
