Posted 27 August 2007 - 11:31 PM
Posted 03 September 2007 - 02:01 AM
He must have spent a damn long time on it (IE a month) to do something like this.
Posted 03 September 2007 - 11:30 AM
Posted 03 September 2007 - 08:55 PM
The film is not neccesarily a fake although there are one or two anomalies.
Commercial coloured smoke formulations do not employ Potassium Nitrate as a fuel, mixtures containing this oxidising agent generally burn too hot to work effectively, most dyes are thermally unstable and at elevated temperatures the smoke would bleach out and appear off-white. The skill (or luck) in this case is in identifying a dye which is not unstable, curiously oranges are usually the best where this characteristic is concerned along with Yellows, Blues are also good but Reds are always difficult to work with.
I would have to say that the dye didn't appear particularly strong in pigment terms, we use dyes and the colour gets absolutely everywhere, smoke production in our factory is no-where near as hygenic and pleasant as this chap makes it look, it is a messy, horrible way to earn a living - I am able to say this having produced over a million smokes over the past ten years. I have encountered just about every production process associated with coloured smoke manufacture, the only cast smokes I have ever seen employ special resin systems, these allow the manipulation of the composition into intricate shapes and also make for a cleaner workplace.
The base burn mixture in any coloured smoke composition is essentially low energy and has a low ignition temperature. To demonstrate a manufacturing process which involves a gas ring is utter madness and I would everyone watching this to disregard the demo as a dangerous gimmick, you could just as easy be watching footage of a burning kitchen and, if this were to be attempted on a regular basis, I am certain that this would be the inevitable outcome.
As many of you know already, the oxidising agent for this job is a Chlorate, check out the EIDAS forum and count the number of accidents involving Chlorates and Sugar over the years - the effects are breathtakingly awful as well. I know this puts me across as a fuddy-duddy but please take my advice and ignore this one chaps.
Posted 04 September 2007 - 04:06 AM
skylighter sell the dyes mixed with all the other things (minus the chlorate) but i would have to sell my first born just to pay the shipping.
Posted 05 September 2007 - 07:34 PM
Neither does any other smoke mix I know of .
Commercial coloured smoke formulations do not employ Potassium Nitrate as a fuel
Lactose is more commonly used in commercial grenades, is this for its cooler temperature or higher safety rating?
Posted 27 October 2007 - 12:04 PM
Sorry to get your hopes up guys, I'm afraid it's a fake. I tested a few variations and frankly they were all awful. Even worse than standard KNSU. The bicard did its job and lowed the reaction several times, as well as making it harder to light, but it just produced the same amount of smoke in triple the time, a fairly pathetic thin cloud. I will collaborate the videos I got to show you the difference.
Heres the video. It isn't very good, but you get the idea http://uk.youtube.co...ITD8c-H6c&eurl=
A comment under your video mentions the Dye, the "fake"-video makers use... Keystone Smoke Dyes. Google for it.
This seems not to be the sollution anyway, as the videos says you can get it in hobby stores...
My first very own firework pictures are online!!!
Posted 27 October 2007 - 09:22 PM
Posted 28 October 2007 - 02:29 AM
Edited by GZ22, 28 October 2007 - 02:40 AM.
Posted 28 October 2007 - 09:12 AM
Posted 28 October 2007 - 10:40 AM
Posted 29 October 2007 - 12:25 AM
Posted 29 October 2007 - 04:02 AM
Posted 10 November 2007 - 11:16 PM
I also posted the video on metacafe. I'd really appreciate it if those who have an account or a few minutes take the time to rate it and back me up with a little scientific knowledge. Thanks
damn shame that the video was a fake. but how did you manage to make it produce that much smoke (in the end clip).
also i wonder if it would be possible to make it coloured by using powder paint. or would it just burn up and be useless.
Posted 11 November 2007 - 01:54 PM
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