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  2. Bag End - Wikipedia

    en.wikipedia.org/wiki/Bag_End

    As such, Bag End represents the familiar, safe, comfortable place which is the antithesis of the dangerous places that they visit. [3] It forms one end of the main story arcs in the novels, and since the Hobbits return there, it also forms an end point in the story circle in each case. [4] Tolkien described himself as a Hobbit in all but size.

  3. Infra (album) - Wikipedia

    en.wikipedia.org/wiki/Infra_(album)

    Infra is a studio album by neo-classical composer Max Richter, released on July 19, 2010, on FatCat Records. [1] The album was reissued on April 25, 2014, on Deutsche Grammophon . Album art

  4. Faraday cage - Wikipedia

    en.wikipedia.org/wiki/Faraday_cage

    In the case of varying electromagnetic fields, the faster the variations are (i.e., the higher the frequencies), the better the material resists magnetic field penetration. In this case the shielding also depends on the electrical conductivity, the magnetic properties of the conductive materials used in the cages, as well as their thicknesses.

  5. Infrared search and track - Wikipedia

    en.wikipedia.org/wiki/Infrared_search_and_track

    AN/AAA-4 IRST under nose of F-4 Phantom The F-4 Phantom had a Texas Instruments AAA-4 infrared seeker [ 4 ] under the nose of early production aircraft F-4Bs and F-4Cs. It was not not installed on later F-4Ds due to limited capabilities, [ 5 ] but retained the bulge and indeed some F-4Ds had the IRST receiver retrofitted in a modified form.

  6. Infrared - Wikipedia

    en.wikipedia.org/wiki/Infrared

    Nearly all the infrared radiation in sunlight is near infrared, shorter than 4 μm. On the surface of Earth, at far lower temperatures than the surface of the Sun, some thermal radiation consists of infrared in the mid-infrared region, much longer than in sunlight. Black-body, or thermal, radiation is continuous: it radiates at all wavelengths.

  7. Bag-of-words model - Wikipedia

    en.wikipedia.org/wiki/Bag-of-words_model

    The bag-of-words model (BoW) is a model of text which uses an unordered collection (a "bag") of words. It is used in natural language processing and information retrieval (IR). It disregards word order (and thus most of syntax or grammar) but captures multiplicity .

  8. Indian MRCA competition - Wikipedia

    en.wikipedia.org/wiki/Indian_MRCA_competition

    The six competing MRCA aircraft. (L-R): Rafale, Typhoon, F-16C/D, F/A-18E/F, JAS 39 Gripen, and MiG-35. [1]The Medium Multi-Role Combat Aircraft (MMRCA) competition in India, also known as the MRCA tender, was a competition to supply 126 multi-role combat aircraft to the Indian Air Force (IAF).

  9. Ultrapure water - Wikipedia

    en.wikipedia.org/wiki/Ultrapure_water

    Ultrapure water (UPW), high-purity water or highly purified water (HPW) is water that has been purified to uncommonly stringent specifications. Ultrapure water is a term commonly used in manufacturing to emphasize the fact that the water is treated to the highest levels of purity for all contaminant types, including: organic and inorganic compounds; dissolved and particulate matter; volatile ...