Originally posted by baumusc
http://www.911myths.com/html/black_smoke.html
Black smoke can mean that a rich source of fuel is being consumed. An oxygen starved fire makes no sense in the situation considering there was a gaping hole in the building.Fire is chemisty, an improper mixture of heat, oxygen, and fuel will not combust all the fuel, thus not release the full heat potential stored in the fuel. A poorly combusted fire fails to release the full caloric energy potential of the fuel. An oxygen starved fire will fail to convert the fuel to heat and CO2, instead making carbon monoxide and fine particulate matter from unburned fuel seen as black smoke in carbon based fires. In a properly combusted carbon based fuel fire we see very little smoke, as in the case of a car, a lighter, or a candle. Notice there is very little visible open flame at the oxygen rich perimeter, telling us another component of the fire triangle is also missing, most likely heat since there is supposedly plenty of office fuel within. The heavy smoke to very little visible flame ratio tells you all you need to know about these 'fires'. These fires could not create the theoretical assumed temps claimed by the official theory, and even if they did the mechanics of the collapses tell us they are being taken apart as they decend which the fires above would have no effect upon once the collapse began.
While we are on the topic of fire, I'd like your explaination of why there were molten steel in the sub levels of WTC 1 and WTC2 that burned for 6+ weeks.