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2. Flammagenitus cloud - Wikipedia

   en.wikipedia.org/wiki/Flammagenitus_cloud

   The 2004 Willow Fire burning near Payson, Arizona, producing a flammagenitus cloud. Firestorm schematic: (1) fire, (2) updraft, (3) strong gusty winds, (A) pyrocumulonimbus cloud. A flammagenitus cloud, [1] also known as a flammagenitus, pyrocumulus cloud, or fire cloud, is a dense cumuliform cloud associated with fire or volcanic eruptions. [2]

3. Oxidizing and reducing flames - Wikipedia

   en.wikipedia.org/wiki/Oxidizing_and_reducing_flames

   When the amount of oxygen increases, the flame shortens due to quicker combustion, its color becomes a more transparent blue, and it hisses/roars. [2] With some exceptions (e.g., platinum soldering in jewelry), the oxidizing flame is usually undesirable for welding and soldering, since, as its name suggests, it oxidizes the metal's surface. [2]

4. 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.

5. Controlled burn - Wikipedia

   en.wikipedia.org/wiki/Controlled_burn

   A controlled burn in Niagara Falls, Ontario where the Burn Boss is watching a back fire (lit first and in the background) move towards a head fire (in the foreground) Back burning or a back fire is the term given to the process of lighting vegetation in such a way that it has to burn against the prevailing wind. This produces a slower moving ...

6. Flame - Wikipedia

   en.wikipedia.org/wiki/Flame

   Flames of charcoal. A flame (from Latin flamma) is the visible, gaseous part of a fire.It is caused by a highly exothermic chemical reaction made in a thin zone. [1] When flames are hot enough to have ionized gaseous components of sufficient density, they are then considered plasma.

7. Centralia mine fire - Wikipedia

   en.wikipedia.org/wiki/Centralia_mine_fire

   The Centralia mine fire is a coal-seam fire that has been burning in the labyrinth of abandoned coal mines underneath the borough of Centralia, Pennsylvania, United States, since at least May 27, 1962. Its original cause and start date are still a matter of debate.