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  2. 1,1,1,2,3,3,3-Heptafluoropropane - Wikipedia

    en.wikipedia.org/wiki/1,1,1,2,3,3,3...

    The United States Environmental Protection Agency allows concentration of 9% volume in occupied spaces without mandated egress time, or up to 10.5% for a limited time. Most fire suppression systems are designed to provide concentration of 6.25-9%. The HFC-227ea fire suppression agent was the first non-ozone-depleting replacement for Halon 1301.

  3. Fire suppression system - Wikipedia

    en.wikipedia.org/wiki/Fire_suppression_system

    An Ansul fire suppression system in a hospital cafeteria. Fire suppression systems are used to extinguish, control, or in some cases, entirely prevent fires from spreading or occurring. Fire suppression systems have an incredibly large variety of applications, and as such, there are many different types of suppression systems for different ...

  4. Pyroclastic rock - Wikipedia

    en.wikipedia.org/wiki/Pyroclastic_rock

    Pyroclasts include juvenile pyroclasts derived from chilled magma, mixed with accidental pyroclasts, which are fragments of country rock.Pyroclasts of different sizes are classified (from smallest to largest) as volcanic ash, lapilli, or volcanic blocks (or, if they exhibit evidence of having been hot and molten during emplacement, volcanic bombs).

  5. Volcanic and igneous plumbing systems - Wikipedia

    en.wikipedia.org/wiki/Volcanic_and_igneous...

    Magma emplacement can take place at any depth above the source rock. [4] Magma emplacement is primarily controlled by the internal forces of magma including buoyancy and magma pressure. [2] Magma pressure changes with depth as vertical stress is a function of the depth. [20] Another parameter of magma emplacement is the rate of magma supply. [2]

  6. Fire protection - Wikipedia

    en.wikipedia.org/wiki/Fire_protection

    Fire protection is the study and practice of mitigating the unwanted effects of potentially destructive fires. [1] [2] It involves the study of the behaviour, compartmentalisation, suppression and investigation of fire and its related emergencies, as well as the research and development, production, testing and application of mitigating systems.

  7. List of fictional elements, materials, isotopes and subatomic ...

    en.wikipedia.org/wiki/List_of_fictional_elements...

    In the "Wages of Fire" episode Big Guy and Rusty the Boy Robot, it is revealed that the BGY-11 is powered by a Cobalt Thorium G power core. Coaxium Star Wars: A material introduced in 2018 film Solo: A Star Wars Story. It was mined on the planet Kessel and used as an extremely potent spacecraft fuel. Computronium: Philosophy and futurism

  8. Pyroclastic flow - Wikipedia

    en.wikipedia.org/wiki/Pyroclastic_flow

    Pyroclastic flows sweep down the flanks of Mayon Volcano, Philippines, in 2018. A pyroclastic flow (also known as a pyroclastic density current or a pyroclastic cloud) [1] is a fast-moving current of hot gas and volcanic matter (collectively known as tephra) that flows along the ground away from a volcano at average speeds of 100 km/h (30 m/s; 60 mph) but is capable of reaching speeds up to ...

  9. Fire blocking - Wikipedia

    en.wikipedia.org/wiki/Fire_blocking

    Fire blocking may also serve as bridging between framing elements, stiffening them against lateral buckling. [4] [5] Fire blocking or firestopping terminology was used interchangeably in code language from its first mention in the 1905 National Building Code (NBC), and requirements were expanded in the 1927 Uniform Building Code (UBC). Building ...