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  2. List of longwave radio broadcasters - Wikipedia

    en.wikipedia.org/wiki/List_of_longwave_radio...

    Radio Rossii. Russia. Kostantinogradovka near Blagoveshchensk. Omnidirectional aerial, 257 m high guyed lattice steel mast with cage antenna ( ARRT-antenna) 1,200. 50°30′23.58″N 128°18′32.9″E  /  50.5065500°N 128.309139°E  / 50.5065500; 128.309139  (Blagoveschensk transmitter) Sakartvelos Radio.

  3. Outgoing longwave radiation - Wikipedia

    en.wikipedia.org/wiki/Outgoing_longwave_radiation

    Outgoing longwave radiation (OLR) is the longwave radiation emitted to space from the top of Earth's atmosphere. [1]: 2241 It may also be referred to as emitted terrestrial radiation. Outgoing longwave radiation plays an important role in planetary cooling. Longwave radiation generally spans wavelengths ranging from 3–100 micrometres (μm).

  4. Compagnie générale de la télégraphie sans fil - Wikipedia

    en.wikipedia.org/wiki/Compagnie_générale_de_la...

    One of the company's early achievements was construction of the Sainte-Assise long-wave transmission station, near Melun, through its subsidiary Radio-France. Eight 250 metres (820 ft) towers supported two antennas fed by four 500KW alternators. The station entered operation in 1922.

  5. Longwave - Wikipedia

    en.wikipedia.org/wiki/Longwave

    Longwave. In radio, longwave, long wave or long-wave, [1] and commonly abbreviated LW, [2] refers to parts of the radio spectrum with wavelengths longer than what was originally called the medium-wave broadcasting band. The term is historic, dating from the early 20th century, when the radio spectrum was considered to consist of longwave (LW ...

  6. Electromagnetic radiation and health - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_radiation...

    Environment portal. Ecology portal. v. t. e. Electromagnetic radiation can be classified into two types: ionizing radiation and non-ionizing radiation, based on the capability of a single photon with more than 10 eV energy to ionize atoms or break chemical bonds. [1] Extreme ultraviolet and higher frequencies, such as X-rays or gamma rays are ...

  7. Far infrared - Wikipedia

    en.wikipedia.org/wiki/Far_infrared

    Far infrared. Far infrared (FIR) or long wave refers to a specific range within the infrared spectrum of electromagnetic radiation. It encompasses radiation with wavelengths ranging from 15 μm (micrometers) to 1 mm, which corresponds to a frequency range of approximately 20 THz to 300 GHz. This places far infrared radiation within the CIE IR-B ...

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