Investigate 9/11 part II (if we're not all 9/11'd out)

[JanH]

Original thread here

Gases, at the very exit of a conduit, would initially expand in all directions, but the area covered by that is rather small, and the gases would follow u or down, depending upon the density, as you yourself have said.

Now set this Q to your students. Combustion gaes, mainly CO2, heated to whatever temperature you think it is at 600-2000 degree Celsius, and take air at say 30 degree Celsius, then let them calculate the density and explain where it would flow to.

and the air would also he heated to the same degree. Blast experts say it is 'impossible' to say exactly where the gases would have gone. I'll go with them I think.

cannot be all the air. The temperature would set everyone on fire.

Look at the blast from the nozzle of a rocket. Look at its shape. The temperature distribution in such cases has been calculated and mapped for different geometries, a long, long time ago.

Where did you read the blast experts' opinion? I would love to see what formulae they use.

ooooo keep going, I don't quite understand but fascinating nonetheless

MB: "I have poured co2

It would expand in all directions, in part"

What was the temperature of the CO2 you poured?

CO2 would sink, as it has a higher density than air, when the two are at the same temperature. If the CO2 is hotter, there would be some space where the pressure of the poured CO2 would make it spread out, but then it would rise, mix with the surrounding air, and eventually come to a temperature same as air.

Pour liquid nirogen. It sinks and spreads out on the floor of where you have poured it to. Then you can see its cloud rising, because as it gets warmer, its density gets lower than air, and it then rises.

OOhhh just started reading a book called "FUTURE:TENSE...The Coming World Order" (By Gwynne Dyer)

Not that far into it but its scary reading!

This is the general Jist...

"Journalists and historian Gwynne Dyer argues that America must pull out of Iraq, lest the stand off between Islamists and American Neo-conservatives escalates into a new global conflict.
Dyer contends that the terrorist threat is a red herring, and that the radical Islamists' dream of a worldwide jihad against the west is a Fantacy, but the Washington's attempt to revive Pax Americana - its dream of global military dominance - is real "

I really didn't realise the implications of all this....madness!

(I was actually looking for Joolstoo.....I thought this would be of interest.....)

i think that is a very simplistic statement of hers ludaloo. I would suggest that the radical Islamists' dream of a worldwide jihad against the west and America's far right contigent's dream of global military dominance are both true, unfortunately, and that is what is so terrifying.

Oh...It wasn't a statement by him it was the description on the back of the book...sorry...
But yes...I can see where you are comming from there...