@Doubt doubt,
Quote:It is a joke because it is irrelevant. The jet fuel which burns around 500 degrees in open air would have been gone within 5 minutes. that leaves carpet drywall and furniture. Even in the best conditions this could not burn hot enough to weaken steel to any significant degree. In the videos you can clearly see the thick black smoke. this means that the fire was oxygen starved. Also steel is a great conductor of heat which would spread the heat out
1. No one has said the jet fuel caused the steel to weaken.
2. You forget paper and other office items.
3. Man has been melting and working iron for centuries with nothing but a wood fire so your argument that steel can not be weakened in the best of conditions is false.
4. Black smoke is NOT only indicative of an oxygen starved fire. A tire burned in an oxygen rich environment will give off black smoke. Many plastics burned in an oxygen rich environment will also give off black smoke.
5. Steel conducts heat, but not at the rate you think it does. A 6' steel rod put in a propane furnace will get red hot on one end but the other end does not.