Fire & Blood by George R.R. Martin6/10/2023 ![]() ![]() Place a cold spoon over a candle and you will observe the water vapor condense on the metal. So candle flames are blue at the bottom because that’s where they take up fresh air, and yellow at the top because the rising fumes from below partly suffocate the upper part of the flame.ĩ. A low-oxygen fire contains lots of uncombusted fuel particles and will give off a yellow glow. Oxygen supply influences the color of the flame. Air is 21 percent oxygen combine pure oxygen with acetylene, a chemical relative of methane, and you get an oxyacetylene welding torch that burns at over 5,500 degrees Fahrenheit - the hottest fire you are likely to encounter.ħ. ![]() Conversely, the more oxygen, the hotter the fire. Earth is the only known planet where fire can burn. Assuming stable fuel, heat, and oxygen levels, a typical house fire will double in size every minute.ĥ. ![]()
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