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  2. Train noise - Wikipedia

    en.wikipedia.org/wiki/Train_noise

    Noise levels can be reduced by installing noise barriers next to the track. [2] Traditional clickety-clack sounds occur as a result of gaps in the rail to allow for thermal expansion. On most railways, the gaps are opposite each other and if the carriages are about the same length as the rails, an even clickety clack sound is generated.

  3. Glossary of North American railway terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_North_American...

    When a train has made a full brake application due to adverse event, or has lost its train air due to a defective valve (a "kicker"), or a broken air line or train separation. The train crew will normally declare that they are "in emergency" over the train radio, thus warning other trains and the dispatcher that there is a problem.

  4. Glossary of rail transport terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_rail_transport...

    Rail transport terms are a form of technical terminology applied to railways. Although many terms are uniform across different nations and companies, they are by no means universal, with differences often originating from parallel development of rail transport systems in different parts of the world, and in the national origins of the engineers and managers who built the inaugural rail ...

  5. Decibel - Wikipedia

    en.wikipedia.org/wiki/Decibel

    The decibel originates from methods used to quantify signal loss in telegraph and telephone circuits. Until the mid-1920s, the unit for loss was miles of standard cable (MSC). 1 MSC corresponded to the loss of power over one mile (approximately 1.6 km) of standard telephone cable at a frequency of 5000 radians per second (795.8 Hz), and matched closely the smallest attenuation detectable to a ...

  6. My French Coach and My Spanish Coach - Wikipedia

    en.wikipedia.org/wiki/My_French_Coach_and_My...

    For their releases in Europe and Australia, the games were renamed My French Coach Level 1: Beginners and My Spanish Coach Level 1: Beginners. [1] French and Spanish language teachers assisted with development of the gameplay for both games, which concentrates on teaching French or Spanish using lessons and minigames. [6]

  7. Diccionario de la lengua española - Wikipedia

    en.wikipedia.org/wiki/Diccionario_de_la_lengua...

    The Diccionario de la lengua española [a] (DLE; [b] English: Dictionary of the Spanish language) is the authoritative dictionary of the Spanish language. [1] It is produced, edited, and published by the Royal Spanish Academy, with the participation of the Association of Academies of the Spanish Language.

  8. List of English–Spanish interlingual homographs - Wikipedia

    en.wikipedia.org/wiki/List_of_English–Spanish...

    This is a list of words that occur in both the English language and the Spanish language, but which have different meanings and/or pronunciations in each language. Such words are called interlingual homographs. [1] [2] Homographs are two or more words that have the same written form.

  9. Public transport timetable - Wikipedia

    en.wikipedia.org/wiki/Public_transport_timetable

    This is a free timetable leaflet distributed in express train and has information about the departure, arrival time of the train and connecting services. For many years the “Kursbuch Gesamtausgabe” ("complete timetable"), a very thick timetable book, was published but its contents are now available on the Deutsche Bahn website [9] and CD ROM.

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