1337m4n
Alphanumeric Anonymous Stick Man
- Joined
- May 10, 2007
- Messages
- 3,510
Ahoy, Max!
I've discovered a potential problem with your theory. I was wondering if you could clear it up.
On the Wikipedia for "Thermite" it says this:
Point of interest are highlighted in bold. I suppose what I'm trying to say is that I don't think the conspirators could've known with any certainty that their plan was going to succeed.
So I wanted to ask you:
1) Given your knowledge of thermite, do you agree with the Wikipedia assessment?
2a) If "yes" to above, how do you think the conspirators managed to ignite the thermite? Would the impacts and jet fuel have been hot enough?
2b) If "no" to above, why not?
Thanks in advance for the input.
I've discovered a potential problem with your theory. I was wondering if you could clear it up.
On the Wikipedia for "Thermite" it says this:
Ignition of a thermite reaction normally requires supervision by a trained technician, and may require persistent efforts, as ignition can be unreliable and unpredictable. Thermite reactions require very high temperatures for initiation. These temperatures cannot be reached with conventional black powder fuses, nitrocellulose rods, detonators, a suitable pyrotechnic initiator, or other common igniting substances. Even when the thermite is hot enough to glow bright red, it will not ignite as it must be at or near white-hot to initiate the reaction. It is possible to start the reaction using a propane torch if done correctly. The torch can preheat the entire pile of thermite which will make it explode instead of burning slowly when it finally reaches ignition temperature.
Often, strips of magnesium metal are used as fuses. Because metals burn without releasing cooling gases, they can potentially burn at extremely high temperatures. Reactive metals such as magnesium can easily reach temperatures sufficiently high for thermite ignition. However, this method is notoriously unreliable: Magnesium itself is difficult to ignite, and in windy or wet conditions the strip may be extinguished. Also, magnesium strips do not contain their own source of oxygen so combustion cannot occur unless the magnesium strips are exposed to air. A significant danger of magnesium ignition is the fact that the metal is an excellent conductor of heat; heating one end of the ribbon may cause the other end to transfer enough heat to the thermite to cause premature ignition. Despite these issues, magnesium ignition remains popular amongst amateur thermite users, mainly because it can be easily obtained.
The reaction between potassium permanganate and glycerine or ethylene glycol is used as an alternative to the magnesium method. When these two substances mix, a spontaneous reaction will begin, slowly increasing the temperature of the mixture until flames are produced. The heat released by the oxidation of glycerine is sufficient to initiate a thermite reaction. However, this method can also be unreliable and the delay between mixing and ignition can vary greatly due to factors such as particle size and ambient temperature.
Apart from magnesium ignition, some amateurs also choose to use sparklers to ignite the thermite mixture. These reach the necessary temperatures and provide enough time before the burning point reaches the sample. However, this can be a dangerous method, as the iron sparks, like the magnesium strips, burn at thousands of degrees and can ignite the thermite even though the sparkler itself is not in contact with it. This is especially dangerous with finely powdered thermite.
Similarly, finely-powdered thermite can be ignited by a regular flint spark lighter, as the sparks are burning metal (in this case, the highly-reactive rare-earth metals lanthanum and cerium). Therefore it is unsafe to strike a lighter close to thermite.
A stoichiometric mixture of finely powdered iron(III) oxide and aluminium may be ignited using ordinary red-tipped book matches by partially embedding one match head in the mixture, and igniting that match head with another match, preferably held with tongs in gloves to prevent flash burns.
Point of interest are highlighted in bold. I suppose what I'm trying to say is that I don't think the conspirators could've known with any certainty that their plan was going to succeed.
So I wanted to ask you:
1) Given your knowledge of thermite, do you agree with the Wikipedia assessment?
2a) If "yes" to above, how do you think the conspirators managed to ignite the thermite? Would the impacts and jet fuel have been hot enough?
2b) If "no" to above, why not?
Thanks in advance for the input.
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