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  2. Ionospheric heater - Wikipedia

    en.wikipedia.org/wiki/Ionospheric_heater

    This gives an energy density in the ionosphere that is less than 1/100 of the thermal energy density of the ionospheric plasma itself. [1] The power flux may also be compared with the solar flux at the Earth's surface of about 1.5 kW/m 2. During aurora generally no ionospheric effects can be observed with the HF pump facilities as the radio ...

  3. Hot-filament ionization gauge - Wikipedia

    en.wikipedia.org/wiki/Hot-filament_ionization_gauge

    This ion current differs for different gases at the same pressure; that is, a hot-filament ionization gauge is composition-dependent. Over a wide range of molecular density, however, the ion current from a gas of constant composition is directly proportional to the molecular density of the gas in the gauge.

  4. Ionosphere - Wikipedia

    en.wikipedia.org/wiki/Ionosphere

    Relationship of the atmosphere and ionosphere. The ionosphere (/ aɪ ˈ ɒ n ə ˌ s f ɪər /) [1] [2] is the ionized part of the upper atmosphere of Earth, from about 48 km (30 mi) to 965 km (600 mi) above sea level, [3] a region that includes the thermosphere and parts of the mesosphere and exosphere. The ionosphere is ionized by solar ...

  5. Minimax Limited - Wikipedia

    en.wikipedia.org/wiki/Minimax_Limited

    The preserved Art Deco gateway from the factory overlooking 'Minimax Corner' Minimax Limited was a British manufacturer of fire extinguishers founded in England in 1903. . Their unique conical fire extinguisher was known as 'The Min

  6. Sura Ionospheric Heating Facility - Wikipedia

    en.wikipedia.org/wiki/Sura_Ionospheric_Heating...

    The Sura Ionospheric Heating Facility, located near the small town of Vasilsursk about 100 km (60 miles) eastward from Nizhniy Novgorod in Russia, is a laboratory for ionosphere research. [1] Sura is capable of radiating about 80 megawatts at 4.3 MHz, increasing to 260 megawatts at 9.5 MHz.

  7. International Reference Ionosphere - Wikipedia

    en.wikipedia.org/wiki/International_Reference...

    For a specified geographic location, time, and date, IRI provides average monthly values for electron density, electron temperature and ion temperature, and the molecular composition of the ions in the range of altitudes from 50 km to 2000 km. [1] The latest standard is IRI-2012. [1] [2] A new version, IRI-2016, has since been released. [3]

  8. Flame detector - Wikipedia

    en.wikipedia.org/wiki/Flame_detector

    A flame detector is a sensor designed to detect and respond to the presence of a flame or fire, allowing flame detection.Responses to a detected flame depend on the installation, but can include sounding an alarm, deactivating a fuel line (such as a propane or a natural gas line), and activating a fire suppression system.

  9. Ionospheric dynamo region - Wikipedia

    en.wikipedia.org/wiki/Ionospheric_dynamo_region

    In the height region between about 85 and 200 km altitude on Earth, the ionospheric plasma is electrically conducting. Atmospheric tidal winds due to differential solar heating or due to gravitational lunar forcing move the ionospheric plasma against the geomagnetic field lines thus generating electric fields and currents just like a dynamo coil moving against magnetic field lines.

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  1. Related searches how hot is the ionosphere fire extinguisher current temperature gauge compared

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