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  2. Vortex engine - Wikipedia

    en.wikipedia.org/wiki/Vortex_engine

    The vortex is begun by briefly turning on a diffuse heater (83) and electrically driving the turbines (21) as fans. This moves mildly heated air into the vortex arena (2). The air must have only a mild temperature difference because large temperature differences increase mixing with cold ambient air and reduce efficiency.

  3. Vortex Aquatic Structures International - Wikipedia

    en.wikipedia.org/wiki/Vortex_Aquatic_Structures...

    In 2021, Vortex launched Dream Tunnel, the world's first fully immersive aquatic attraction at IAAPA Expo. [16] [17] In 2022, Vortex opened World's first Dream Tunnel at Super Aqua Club in Pointe-Calumet, Quebec, Canada. [6] Vortex hired François Lafortune in the newly created role of Chief Commercial Officer in November 2023. [18]

  4. Vortex tube - Wikipedia

    en.wikipedia.org/wiki/Vortex_tube

    The vortex tube, also known as the Ranque-Hilsch vortex tube, is a mechanical device that separates a compressed gas into hot and cold streams. The gas emerging from the hot end can reach temperatures of 200 °C (390 °F), and the gas emerging from the cold end can reach −50 °C (−60 °F). [ 1 ]

  5. Vornado Air - Wikipedia

    en.wikipedia.org/wiki/Vornado_Air

    On August 14, 2014, the CPSC announced a recall of 79,000 Vornado-brand electric heaters (Vornado VH110 Whole Room Vortex electric space heaters) which had been made in China for Vornado Air, LLC, of Andover, and sold for about $60 at several major retail store chains and online sellers. The recall followed 29 reports of units overheating and ...

  6. Ionospheric heater - Wikipedia

    en.wikipedia.org/wiki/Ionospheric_heater

    An ionospheric heater, or an ionospheric HF pump facility, is a powerful radio wave transmitter with an array of antennas which is used for research of plasma turbulence, the ionosphere and upper atmosphere.

  7. Convective storm detection - Wikipedia

    en.wikipedia.org/wiki/Convective_storm_detection

    A supercell is characterized by a mesocyclone, which is usually first observed in velocity data as a tight, cyclonic structure in the middle levels of the thunderstorm. If it meets certain requirements of strength, duration, and vorticity, it may trip the mesocyclone detection algorithm (MDA). Tornadic signatures are indicated by a cyclonic ...