Title: Color Of Molten Aluminum
curious77 - September 14, 2007 10:01 PM (GMT)
You guys are absolutely wrong about your claims that aluminum can't glow orange. It can. Not much to this one, it just can. I don't know why you think it can't?
Also, claiming it's molten iron is insane. That would mean that you believe the cuts of supports had already occured. Why would it not immediately fall after this?
Also, where was the melted aluminum? The fires were hot enough to melt it. Do you guys claim it never flowed out?
buddy - September 14, 2007 10:13 PM (GMT)
Steven Jones did an actual test trying to get aluminum to glow orange. If you know how to make it glow orange, contact him and I'll bet he'll do another experiment.
http://www.911review.com/articles/jones/ex...hypothesis.html curious77 - September 15, 2007 12:30 AM (GMT)
I looked at your site. He doesn't even try glass? Anyway, you don't need to add anything to aluminum to make it glow.
http://www.jamesyawn.com/castal/how2/foundry6.JPGThis guy fails at basic physics knowledge if he wasn't aware of this.
roscoe - September 15, 2007 04:21 AM (GMT)
| QUOTE (curious77 @ Sep 14 2007, 07:30 PM) |
I looked at your site. He doesn't even try glass? Anyway, you don't need to add anything to aluminum to make it glow.
http://www.jamesyawn.com/castal/how2/foundry6.JPG
This guy fails at basic physics knowledge if he wasn't aware of this. |
What are you trying to prove here?
The samples taken from the rubble have Thermate traces in them.
End of story
Next?
goblin - September 15, 2007 08:34 AM (GMT)
| QUOTE (roscoe @ Sep 14 2007, 11:21 PM) |
The samples taken from the rubble have Thermate traces in them.
End of story
Next? |
Thermate traces?
HeadSpin - September 15, 2007 09:32 AM (GMT)
| QUOTE (curious77 @ Sep 15 2007, 12:30 AM) |
I looked at your site. He doesn't even try glass? Anyway, you don't need to add anything to aluminum to make it glow.
http://www.jamesyawn.com/castal/how2/foundry6.JPG
This guy fails at basic physics knowledge if he wasn't aware of this. |
the aluminium would appear orange in that picture but it is not glowing orange, aluminium has high reflectivity 0.95 which means it reflects 95% of the light hitting it. this means the infra-red radiation given off by the coals (and reflected by the inside of the large can) would be reflected by any molten aluminium.
it is not glowing orange,it is reflecting orange, you could put a mirror inside that can - it would not glow orange, it would just reflect the orange light being emitted from the heat source.
this is what it looks like when its poured out from the same wesbsite:
http://www.jamesyawn.com/castal/foundry/pour.mpgit appears silver because it is now reflecting daylight.
aluminium has an unusually low emissivity rating (0.05), it can glow orange but only at very high temperatures (or in very dark conditions) where the emissivity (glow) radiation outshines the radiation it is reflecting.
thus we can deduce that the substance flowing out of the tower is not aluminium, watch video clip here:
http://video.google.co.uk/videoplay?docid=...earch&plindex=8other information you might find useful
http://www.journalof911studies.com/volume/...elyCollapse.pdf jakeb - September 18, 2007 02:01 PM (GMT)
| QUOTE (HeadSpin @ Sep 15 2007, 09:32 AM) |
| QUOTE (curious77 @ Sep 15 2007, 12:30 AM) | I looked at your site. He doesn't even try glass? Anyway, you don't need to add anything to aluminum to make it glow.
http://www.jamesyawn.com/castal/how2/foundry6.JPG
This guy fails at basic physics knowledge if he wasn't aware of this. |
the aluminium would appear orange in that picture but it is not glowing orange, aluminium has high reflectivity 0.95 which means it reflects 95% of the light hitting it. this means the infra-red radiation given off by the coals (and reflected by the inside of the large can) would be reflected by any molten aluminium. it is not glowing orange,it is reflecting orange, you could put a mirror inside that can - it would not glow orange, it would just reflect the orange light being emitted from the heat source. this is what it looks like when its poured out from the same wesbsite: http://www.jamesyawn.com/castal/foundry/pour.mpgit appears silver because it is now reflecting daylight. aluminium has an unusually low emissivity rating (0.05), it can glow orange but only at very high temperatures (or in very dark conditions) where the emissivity (glow) radiation outshines the radiation it is reflecting. thus we can deduce that the substance flowing out of the tower is not aluminium, watch video clip here: http://video.google.co.uk/videoplay?docid=...earch&plindex=8other information you might find useful http://www.journalof911studies.com/volume/...elyCollapse.pdf |
Of course, there were many more metals present than just aluminum. Copper, for instance.
HeadSpin - September 18, 2007 02:47 PM (GMT)
the colour of the metal indicates a temperature of over 1000C,
that temperature could not have been reached in the tower, it was heavily ventilated and not fully involved, so any heat would quickly conduct through the metal of the building.
besides is there any evidence of that amount of copper that could account for what was seen pouring out of the tower?
jakeb - September 18, 2007 02:48 PM (GMT)
| QUOTE (HeadSpin @ Sep 18 2007, 02:47 PM) |
the colour of the metal indicates a temperature of over 1000C,
that temperature could not have been reached in the tower, it was heavily ventilated and not fully involved, so any heat would quickly conduct through the metal of the building.
besides is there any evidence of that amount of copper that could account for what was seen pouring out of the tower? |
How much poured out?
(A measurement in cubic feet should suffice)
HeadSpin - September 18, 2007 04:34 PM (GMT)
i'd say 10 tons
what's your best guess?
jakeb - September 18, 2007 05:32 PM (GMT)
| QUOTE (HeadSpin @ Sep 18 2007, 04:34 PM) |
i'd say 10 tons
what's your best guess? |
10 tons poured out?
What evidence are you basing this on? Which photos/videos?
And what metal did you determine that it was?
e^n - September 18, 2007 06:26 PM (GMT)
| QUOTE (HeadSpin @ Sep 18 2007, 09:47 AM) |
the colour of the metal indicates a temperature of over 1000C,
that temperature could not have been reached in the tower, it was heavily ventilated and not fully involved, so any heat would quickly conduct through the metal of the building.
besides is there any evidence of that amount of copper that could account for what was seen pouring out of the tower? |
Why do NISTs tests or the Cardington fire tests for example not show this? Steel temperature is a function of fire temperature, the surface area available for conduction and the temperature differences. Do you know any of these?
Rossmancer - September 19, 2007 03:38 PM (GMT)
Hey can someone link me to some sort of reference that thermite traces have been found in the rumble? A lot of people have mentioned it, but I haven't seen it linked before, thanks.
HeadSpin - September 19, 2007 04:00 PM (GMT)
| QUOTE (Rossmancer @ Sep 19 2007, 03:38 PM) |
| Hey can someone link me to some sort of reference that thermite traces have been found in the rumble? A lot of people have mentioned it, but I haven't seen it linked before, thanks. |