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Fire is the rapid oxidation of a material in the exothermic chemical process of combustion, releasing heat, light, and various reaction products. Slower oxidative processes like rusting or digestion are not included by this definition.
Fire is hot because conversion of the weak double bond in molecular oxygen, O2, to the stronger bonds in the combustion products carbon dioxide and water releases energy (418 kJ per 32 g of O2); the bond energies of the fuel play only a minor role here. At a certain point in the combustion reaction, called the ignition point, flames are produced. The flame is the visible portion of the fire. Flames consist primarily of carbon dioxide, water vapor, oxygen and nitrogen. If hot enough, the gases may become ionized to produce plasma. Depending on the substances alight, and any impurities outside, the color of the flame and the fire's intensity will be different.
Fire in its most common form can result in conflagration, which has the potential to cause physical damage through burning. Fire is an important process that affects ecological systems around the globe. The positive effects of fire include stimulating growth and maintaining various ecological systems.
The negative effects of fire include hazard to life and property, atmospheric pollution, and water contamination. If fire removes protective vegetation, heavy rainfall may lead to an increase in soil erosion by water. Also, when vegetation is burned, the nitrogen it contains is released into the atmosphere, unlike elements such as potassium and phosphorus which remain in the ash and are quickly recycled into the soil. This loss of nitrogen caused by a fire produces a long-term reduction in the fertility of the soil, which only slowly recovers as nitrogen is "fixed" from the atmosphere by lightning and by leguminous plants such as clover.
Fire has been used by humans in rituals, in agriculture for clearing land, for cooking, generating heat and light, for signaling, propulsion purposes, smelting, forging, incineration of waste, cremation, and as a weapon or mode of destruction.
It can be kind of a tricky question and I’m interested in thoughts. Most people, myself included, don’t think twice about firing WW2-era firearms (unless it’s some particularly rare bird) but I’ve noticed when we start getting into WW1 and the early 20th century, there’s already bit more...
Hi gang, long time talk to you all, but I need help. I had a bad fire and damage most of my firearms, between AR's and 1911's and Palomar's guns, Glocks, Springfield's...
So insurance company wants to bring them Into gunsmith to evaluate if repairable or replace. Sad thing my "First gun"(Nicke...
My PulsePoint Respond app showed a dispatch at about 11:52AM today for a fire at the Johnson Creek Gun Club. Does anyone know if that was accurate and, if so, what happened? The call looks like it was a total of about 3¼ hours.
What the heck do you think was going on here? Sounds like a hit. Or maybe just wrong house?? Nobody was home at the time fortunately.
Police: 8 men fire more than 80 shots into home of Colts assistant Parks Frazier
Fun old shotgun, Point it safely down range, hold down the trigger and start pumping.
Functions just fine, never had a problem with it. In fair condition, no cracks in the wood that I can see. Adjustable choke on the end of the barrel still works.
Just time to clear up some space and this one...
You probably already heard of the fires in a park up toward the Santiam pass.
WA state has had issues too. Both probably due to human caused ignitions.
WA is already burning and that could mean another smoky summer
For the past three weeks I have been burning slash piles. Last weekend I...
For sale is a FNP-45 Tactical in FDE. Comes with a Threaded Barrel, Raised Supressor Sights, Burris Fast Fire 2 RMR, 2 x 15 Round Mags, FN Hard Case, FN Lock and Two Mag Holster. I'm the second owner, just purchased a FNX-45 for myself. Crisp bore with a very low round count (less than 100). It...
new in original packaging... unused / never installed. Could be tough to acquire in the not too distant future. This fits AR15s.
$140 cash or trade.
Trade for ammo in .22LR, .357, 10mm, 9mm, 5.56, .308. Willing to consider other trade items
If you would like to see an absolute train wreck, head over to the ATF Facebook page and find the post honoring the four agents killed at the Waco/Brach Davidian compound.
9k comments and over 7k shares so far in the 21 hours since it was posted. The very first comment nailed it....."This is...
Buying a house and need to free up some cash so please, no trades
Marfione custom sigil. Has box/docs. Has a small mark of the copper back plate but not another mark on her. SOLD!!!
Marfione custom socom. As new in box!
1997 socom. Heavy user but still a great knife. $220. No box...
Not the guns fault, but it was responsible. Used to shoot revolvers double action for practice for years before getting my first auto loader. A Kimber from their custom shop many years ago. But I was getting fails to fire when shooting fast. Turned out I was trying shoot faster than the slide...