jaydeehess
Penultimate Amazing
Watching Kreel post reminds me of the A&E program "Jail". Its fascinating to watch the self inflicted damage those people do to themselves.
Yes, steel regains SOME of the strength it loses as its cools.
HOWEVER, if the steel buckled crept or sagged when hot as happens COMMONLY in office fires, then when it cools it DOES NOT return to its original geometry AND therefore can NOT supply the same structural ability it had.
In addition it does not return to the same molecular state it had prior to being heated UNLESS you take specific steps to ensure that it does(your steel sword makers for eg.). I once cleaned up a cottage after it burned during a forest fire. I was helping the family who owned it as I was a friend of their son. I picked up what had been a .22 cal rifle and aside from the fact that the stock was gone, burned away, the rifle looked like all it needed was a good cleaning. My friend's father told me to try and bend the barrel. I did and bent it into a "U" with little problem. It took about the same amount of strength it would have to bend a wire coat hanger. Tell me again Kreel that steel regains its original strength once it cools and then demonstrate that you can bend a pristine .22 rifle barrel.
Second, the towers were not the giant heat sink you wish it to have been.
First of all the evidence that steel simply conducts heat as well as you suppose, does not exist and in fact the numerous cases of bent steel structural members in numerous office fires absolutely contradicts such nonsense.
Add to this the fact that fires were raging on consecutive floors and thermodynamics dictates that the heat generated in the middle floors would have no chance of being dissipated through the columns to cooler areas. Add in also that this steel was insulated to retard heat flow. On fire floors where insulation was abraded off by the aircraft impact that played much less in slowing heat getting to the steel BUT if that heat was to be dissipated at lower levels, with intact insulation, then the insulation WOULD slow that dissipation of heat out of the steel.
For a heat sink to work it MUST be able to conduct heat AND dissipate it in a cooler zone.
ETA: I was wrong. "JAIL" is on Spike TV
Yes, steel regains SOME of the strength it loses as its cools.
HOWEVER, if the steel buckled crept or sagged when hot as happens COMMONLY in office fires, then when it cools it DOES NOT return to its original geometry AND therefore can NOT supply the same structural ability it had.
In addition it does not return to the same molecular state it had prior to being heated UNLESS you take specific steps to ensure that it does(your steel sword makers for eg.). I once cleaned up a cottage after it burned during a forest fire. I was helping the family who owned it as I was a friend of their son. I picked up what had been a .22 cal rifle and aside from the fact that the stock was gone, burned away, the rifle looked like all it needed was a good cleaning. My friend's father told me to try and bend the barrel. I did and bent it into a "U" with little problem. It took about the same amount of strength it would have to bend a wire coat hanger. Tell me again Kreel that steel regains its original strength once it cools and then demonstrate that you can bend a pristine .22 rifle barrel.
Second, the towers were not the giant heat sink you wish it to have been.
First of all the evidence that steel simply conducts heat as well as you suppose, does not exist and in fact the numerous cases of bent steel structural members in numerous office fires absolutely contradicts such nonsense.
Add to this the fact that fires were raging on consecutive floors and thermodynamics dictates that the heat generated in the middle floors would have no chance of being dissipated through the columns to cooler areas. Add in also that this steel was insulated to retard heat flow. On fire floors where insulation was abraded off by the aircraft impact that played much less in slowing heat getting to the steel BUT if that heat was to be dissipated at lower levels, with intact insulation, then the insulation WOULD slow that dissipation of heat out of the steel.
For a heat sink to work it MUST be able to conduct heat AND dissipate it in a cooler zone.
ETA: I was wrong. "JAIL" is on Spike TV
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