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Reducing, neutral and oxidizing oxyacetylene flames. A flame is affected by the fuel introduced and the oxygen available. A flame with a balanced oxygen-fuel ratio is called a neutral flame. The color of a neutral flame is semi-transparent purple or blue. [1] This flame is optimal for many uses because it does not oxidize or deposit soot onto ...
Cool flames were accidentally discovered in the 1810s by Sir Humphry Davy, who inserted a hot platinum wire into a mixture of air and diethyl ether vapor."When the experiment on the slow combustion of ether is made in the dark, a pale phosphorescent light is perceived above the wire, which of course is most distinct when the wire ceases to be ignited.
Flame wars can have a lasting impact on some internet communities where even once a flame war has concluded a division or even dissolution may occur. [ 3 ] The individuals that create an environment of flaming and hostility lead the readers to disengage with the offender and may potentially leave the message board and chat room.
The diffusion flame is also referred to as nonpremixed flame. The burning rate is however still limited by the rate of diffusion. [ 2 ] Diffusion flames tend to burn slower and to produce more soot than premixed flames because there may not be sufficient oxidizer for the reaction to go to completion, although there are some exceptions to the rule.
Fire opal is a transparent to translucent opal with warm body colors of yellow to orange to red. Although fire opals don't usually show any play of color, they occasionally exhibit bright green flashes. The most famous source of fire opals is the state of Querétaro in Mexico; these opals are commonly called Mexican fire opals. [48]
The Will o' the Wisp and the Snake by Hermann Hendrich (1854–1931). In folklore, a will-o'-the-wisp, will-o'-wisp, or ignis fatuus (Latin for 'foolish flame'; [1] pl. ignes fatui), is an atmospheric ghost light seen by travellers at night, especially over bogs, swamps or marshes.
Disaster Girl is a meme photograph featuring a young girl staring at the camera with a structure fire behind her. [ 1 ] [ 2 ] [ 3 ] The girl in the photo, Zoë Roth, was four years old when the photo was taken in 2005.
Nizhny Novgorod Kremlin eternal flame memorializing losses during World War II .. An eternal flame is a flame, lamp or torch that burns for an indefinite time. Most eternal flames are ignited and tended intentionally, but some are natural phenomena caused by natural gas leaks, peat fires and coal seam fires, all of which can be initially ignited by lightning, piezoelectricity or human activity ...