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  2. Radar beacon - Wikipedia

    en.wikipedia.org/wiki/Radar_beacon

    Radar beacon (short: racon) is – according to article 1.103 of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR) [1] – defined as "A transmitter-receiver associated with a fixed navigational mark which, when triggered by a radar, automatically returns a distinctive signal which can appear on the display of the ...

  3. Track while scan - Wikipedia

    en.wikipedia.org/wiki/Track_while_scan

    In track-while-scan mode the radar has the ability to acquire and lock/track multiple targets while simultaneously providing a view of the surrounding airspace, which in turn aids the pilot and or operator in maintaining better situational awareness.

  4. Aviation transponder interrogation modes - Wikipedia

    en.wikipedia.org/wiki/Aviation_transponder...

    The aviation transponder interrogation modes are the standard formats of pulsed sequences from an interrogating Secondary Surveillance Radar (SSR) or similar Automatic Dependent Surveillance-Broadcast (ADS-B) system. The reply format is usually referred to as a "code" from a transponder, which is used to determine detailed information from a ...

  5. Tactical data link - Wikipedia

    en.wikipedia.org/wiki/Tactical_Data_Link

    A tactical data link ( TDL) uses a data link standard in order to provide communication via radio waves or cable used by NATO nations. All military C3 systems use standardized TDL to transmit, relay and receive tactical data. Multi-TDL network ( MTN) refers to the network of similar and dissimilar TDLs integrated through gateways, translators ...

  6. New tools from NOAA and CDC show people their risk from heat ...

    www.aol.com/news/tools-noaa-cdc-show-people...

    Among the new tools is an experimental system from NOAA called “ HeatRisk ,” which provides a seven-day heat forecast for locations across the contiguous U.S. A numerical and color-coded scale ...

  7. Rayon - Wikipedia

    en.wikipedia.org/wiki/Rayon

    Rayon, also called viscose [1] and commercialised in some countries as sabra silk or cactus silk, [2] is a semi-synthetic fiber, [3] made from natural sources of regenerated cellulose, such as wood and related agricultural products. [4] It has the same molecular structure as cellulose.

  8. Spatial ability - Wikipedia

    en.wikipedia.org/wiki/Spatial_ability

    Spatial ability or visuo-spatial ability is the capacity to understand, reason, and remember the visual and spatial relations among objects or space. [1] Visual-spatial abilities are used for everyday use from navigation, understanding or fixing equipment, understanding or estimating distance and measurement, and performing on a job.

  9. Sun's magnetic field may originate closer to the solar surface

    www.aol.com/news/suns-magnetic-field-may...

    The sun's magnetic field, which causes solar storms like the one that hit Earth this month and produced beautiful auroras, may originate at shallower depths in the star's interior than previously ...

  10. DEFCON - Wikipedia

    en.wikipedia.org/wiki/DEFCON

    DEFCON. The defense readiness condition ( DEFCON) is an alert state used by the United States Armed Forces. [1] [2] For security reasons, the US military does not announce a DEFCON level to the public. [1] The DEFCON system was developed by the Joint Chiefs of Staff (JCS) and unified and specified combatant commands. [3]

  11. Terrain awareness and warning system - Wikipedia

    en.wikipedia.org/wiki/Terrain_awareness_and...

    In aviation, a terrain awareness and warning system ( TAWS) is generally an on-board system aimed at preventing unintentional impacts with the ground, termed "controlled flight into terrain" accidents, or CFIT. [1] The specific systems currently in use are the ground proximity warning system (GPWS) and the enhanced ground proximity warning ...