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• #98527
jerk mackerel from Beckton
Also a good band name
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• #98528
https://en.m.wikipedia.org/wiki/Dust_explosion
Have a look at the notable incidents dents in flour mills
I can give you details of how to do one at home which gives a big pop and covers your lawn in flour. Amusing 4 year olds and bemusing my wife.
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• #98529
please proceed...
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• #98530
failed
This is key. Dust explosions are huge when they go well, but it's technically difficult to make them go well on purpose. Deflagration is relatively easy but not that impressive, detonation is hard but devastating.
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• #98531
please proceed...
Beyond the Press have a "don't try this at home" instructional
https://www.youtube.com/watch?v=PU5jOT-5hlc
And for lols they did magnesium too
https://www.youtube.com/watch?v=ZdRs99l9pS0
And liquid droplet clouds
https://www.youtube.com/watch?v=sv0tGx80yLk
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• #98532
Custard powder is better.
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• #98533
Another entry on a list for watching those vids...
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• #98534
My old chemistry teacher was a bit of a character.
He always had home made fireworks in his pockets and more than once we had to evacuate the classroom after he'd not bothered using the fume cupboard to make poisonous gas.
One lesson he decided to demonstrate how powder could explode and blew a few ceiling tiles off making flour explode and then did the same with, for whatever reason, powdered dried mushrooms.
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• #98535
My old chemistry teacher kept mars bars in his pockets, with which he would try and persuade young boys to do things like help him calibrate his rectal thermometer. But he also liked to throw lumps of sodium into buckets of water every so often and make volcanoes out of piles of aluminium shavings, so he too was a bit of a character.
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• #98536
Who knew that flour could be so dangerous?
Coeliacs
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• #98537
I'm listening
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• #98538
My chemistry teacher showed us how to make (although I'm not convinced it was) mustard gas.
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• #98539
My Dad used to be a baker. He had a coal fire oven and demonstrated the dangers of flour by throwing a handful into the furnace of the coal fire. Full on inferno ensued.
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• #98540
Ah yes, that was one of the ones we had to evacuate the classroom for.
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• #98541
My wife was so ashamed by one of those emails announcing she was the local champ she stopped eating the item in question completely and has never bought it since.
I reckon thats why Sainsburys stopped sending those out.
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• #98542
Depends on whether it was Museli or Buckfast.
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• #98543
We made di-nitrotoluene in one of our lessons (no idea why, for curriculum reasons I think) and our teacher mentioned that it's a precursor to trinitrotoluene (TNT), but that the third NO2 was very difficult to get on.
He didn't mind us trying until he saw one of my mates furiously boiling the hell out of a tube of the stuff with about five bunsen burners aimed at it... no idea if there was any danger of us making it with that process, but a halt was called to proceedings
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• #98544
.
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• #98545
Interestingly a podcast I was listening to specifically drew an comparison between MB and Brand regarding how modern day cancellation does not have anywhere near the same impact today that it once did.
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• #98546
newsagents aicm £5
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• #98547
I’ll try to find the diagram to make flour violently combust.
Meanwhile if you search Amazon for Potassium Nitrate then scroll down
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• #98548
Looks like a lot of people need aluminium powder and iron oxide as well
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• #98549
The first experiment is illegal btw.
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• #98550
aluminium powder and iron oxide
That's one of many possible thermite mixtures. Again, we need to stress the vast difference in effect between deflagration (what thermites do) and detonation. Much research on propellant compositions (solid rocket fuel, artillery shell propellant) is given over to ensuring that they are highly resistant to deflagration to detonation (D2D) transition, following some disastrous magazine explosions in the world wars. Examples of unwanted D2D events include Beirut where poor storage turned what should have been a warehouse destroying fire into a city destroying bomb, and Kentucky Ballistics life threatening .50BMG chamber detonation.
When you watch Russian T72s brewing up, the 20 foot roman candle out of the hatch is the propellant charges (5-10kg per round) deflagrating. The turret toss is the much smaller mass of explosives in the HE and HEAT projectiles detonating.
great name for a band