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  2. Colored fire - Wikipedia

    en.wikipedia.org/wiki/Colored_fire

    Colored fire is a common pyrotechnic effect used in stage productions, fireworks and by fire performers the world over. Generally, the color of a flame may be red, orange, blue, yellow, or white, and is dominated by blackbody radiation from soot and steam.

  3. Pyrotechnic colorant - Wikipedia

    en.wikipedia.org/wiki/Pyrotechnic_colorant

    Sodium compounds glow yellow in a flame. A pyrotechnic colorant is a chemical compound which causes a flame to burn with a particular color . These are used to create the colors in pyrotechnic compositions like fireworks and colored fires .

  4. Flame test - Wikipedia

    en.wikipedia.org/wiki/Flame_test

    [9] [10] [11] [6] When using a splint, one must be careful to wave the splint through the flame rather than holding it in the flame for extended periods, to avoid setting the splint itself on fire. The use of a cotton swab or melamine foam (used in “eraser” cleaning sponges) as a support has also been suggested.

  5. Pressure measurement - Wikipedia

    en.wikipedia.org/wiki/Pressure_measurement

    Gauge pressure is zero-referenced against ambient air pressure, so it is equal to absolute pressure minus atmospheric pressure. A tire pressure gauge is an example of gauge pressure measurement; when it indicates zero, then the pressure it is measuring is the same as the ambient pressure.

  6. Fire pit - Wikipedia

    en.wikipedia.org/wiki/Fire_pit

    A fire pit. The defining feature of fire pits is that they are designed to contain fire and prevent it from spreading. A fire pit can vary from a pit dug in the ground (fire hole) to an elaborate gas burning structure of stone, brick, and metal. Certain contemporary fire pit styles include fire bowls that can either be set in the ground or ...

  7. Color-tagged structure - Wikipedia

    en.wikipedia.org/wiki/Color-tagged_structure

    Similarly, a structure is yellow-tagged if it has been moderately damaged to the degree that its habitability is limited (only during the day, for example). A green-tagged structure may mean the building is either undamaged or has suffered slight damage, although differences exist at local levels when to use a green tag.

  8. Is It Safe To Burn a Backyard Fire Pit Once a Week? - AOL

    www.aol.com/safe-burn-backyard-fire-pit...

    Fire pits that are gas fired (meaning they use compressed natural gas or propane for fuel) tend to be safer alternatives to wood-burning fire pits as long as the unit is operating properly ...

  9. Fire glass - Wikipedia

    en.wikipedia.org/wiki/Fire_glass

    Fire glass (also fire pit glass, fire rocks, fire beads or lava glass) is a type of tempered glass, chunks of which are used decoratively on fireplaces. Pieces of the glass are heaped around jets of burning gas, or around liquid ethanol , in order to conceal the jets and reflect the flames. [ 1 ]

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