might be that is still contains some moisture. get's superheated and turns to steam.
2006-12-08 16:09:05
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answer #1
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answered by Anonymous
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Same reason popcorn "pops" from a solid kernel into a light fluffy ball. The moisture inside gets heated, pressure builds up, and finally there is a mini explosion as the pressure is released.
The wood may contain moisture, or in the case of pine and spruce, it may still contain sticky sap that also contains moisture. When the heat builds up as the wood burns, it has no place to go, then as the wood burns and gets weaker in the charred areas, it pops out, often pushing a small ember flying away from the log.
2006-12-09 00:23:57
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answer #2
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answered by SteveN 7
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Volatile oils and moisture locked in the wood fibers expand as they heat, and finally "explode" by cracking through the weakest fibers.
Areas that are hottest will expand more than adjacent areas, in which the wood suddenly splits along the grain, also causing a popping sound.
2006-12-09 00:12:49
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answer #3
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answered by Boomer Wisdom 7
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Little pockets of moisture (wood isn't completely dry) that expand into steam----you can hear the hisssssss, but if nowhere to escape, or if the openings are too small, the steam cracks through the wood and escapes. That's what you hear. Also applies to small bugs, grubs, termites, etc in the wood. They get cooked, moisture turns to steam.....hisses.....and pops the wood.
2006-12-09 00:17:36
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answer #4
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answered by zoomat4580 4
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Pockets of moisture turn to steam in the wood, and need to vent to atmosphere. Pressure builds, and a small piece of wood POPS out of the way, and the gas is vented. Similar to popping those plastic packing bubble sheets we all love.
2006-12-09 00:11:26
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answer #5
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answered by Dorothy and Toto 5
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Water contained in the wood. When the wood heats the water above boiling, it turns into gas, and starts accumulating pressure. When this pressure is enough to escape outside, it does so forcefully, creating the mini-explosion "pop" you hear.
2006-12-09 00:09:45
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answer #6
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answered by Maxwell 2
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I think it's caused usually from the wood not being completely dry, and some kinds of wood pop more then others
2006-12-09 00:09:45
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answer #7
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answered by bobbie v 5
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the creation of coals. when wood burns it splits into what are called coals (not to be confused with coal from the ground) and when it pops that is a coal breaking off. coals are good for heating things like when your fire is smoldering and giving a lot of heat but no fire it is because you burned it down to coals
2006-12-09 00:09:55
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answer #8
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answered by Anonymous
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the pressure of the heat building up on the wood makes it crack, causing a popping sound. sort of like an explosion.
2006-12-09 00:10:21
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answer #9
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answered by ilovemymusicc 1
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the fire heats moisture in the pores of the wood causing the crack is the implosion of h20 moleculse and the formation of c02 being created...
2006-12-09 00:14:44
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answer #10
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answered by adidasfan90210 2
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