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  2. Engine order telegraph - Wikipedia

    en.wikipedia.org/wiki/Engine_order_telegraph

    An engine order telegraph or E.O.T., also referred to as a Chadburn, [1] is a communications device used on a ship (or submarine) for the pilot on the bridge to order engineers in the engine room to power the vessel at a certain desired speed.

  3. Telegrapher's equations - Wikipedia

    en.wikipedia.org/wiki/Telegrapher's_equations

    The telegrapher's equations (or just telegraph equations) are a set of two coupled, linear equations that predict the voltage and current distributions on a linear electrical transmission line. The equations are important because they allow transmission lines to be analyzed using circuit theory. [ 1] The equations and their solutions are ...

  4. Telegraphy - Wikipedia

    en.wikipedia.org/wiki/Telegraphy

    Telegraphy. Telegraphy is the long-distance transmission of messages where the sender uses symbolic codes, known to the recipient, rather than a physical exchange of an object bearing the message. Thus flag semaphore is a method of telegraphy, whereas pigeon post is not. Ancient signalling systems, although sometimes quite extensive and ...

  5. Type IX submarine - Wikipedia

    en.wikipedia.org/wiki/Type_IX_submarine

    An engine order telegraph dial located in the engine compartment of U-505. "MT" is Maschinen Telegraf, (Telegraph Machine), and "Bb", indicating Backbord, (Port). The Type IXC was a further refinement of the class with storage for an additional 43 tonnes of fuel, increasing the boat's range.

  6. Electrical telegraph - Wikipedia

    en.wikipedia.org/wiki/Electrical_telegraph

    Hughes telegraph, an early (1855) teleprinter built by Siemens and Halske. Electrical telegraphy is a point-to-point text messaging system, primarily used from the 1840s until the late 20th century. It was the first electrical telecommunications system and the most widely used of a number of early messaging systems called telegraphs, that were ...

  7. How ‘Dengue Detectives’ Are Racing To Prevent A Super ...

    www.aol.com/dengue-detectives-racing-prevent...

    According to the WHO, that includes doing the following if you live in an area where dengue is spreading: Wearing clothes that cover as much of your body as possible. Using mosquito nets that ...

  8. Firing order - Wikipedia

    en.wikipedia.org/wiki/Firing_order

    The firing order of an internal combustion engine is the sequence of ignition for the cylinders. In a spark ignition (e.g. gasoline/petrol) engine, the firing order corresponds to the order in which the spark plugs are operated. In a diesel engine, the firing order corresponds to the order in which fuel is injected into each cylinder.

  9. Telegraph process - Wikipedia

    en.wikipedia.org/wiki/Telegraph_process

    In probability theory, the telegraph process is a memoryless continuous-time stochastic process that shows two distinct values. It models burst noise (also called popcorn noise or random telegraph signal). If the two possible values that a random variable can take are and , then the process can be described by the following master equations : and.