Smoke grenades, any advice?
Discussion
northwest monkey said:
tumble dryer said:
It started with 1/2" copper pipe, bashed-in at both ends to 'hold' the pressure and then sat upon a pile of the stuff, with a trail fuse to give us a safe distance. (Easily 10 mtrs) Fuse takes, runs up to pile, pile takes really well, copper tube glows red and ignites weedkiller and sugar inside. (I know this because I actually watched the pipe balloon out before blowing up, from the safety of behind a big tree!) Impressive boom gotta be said. And hole in the ground.
It progressed to 3/4" copper pipe, and a seriously big hole in the ground.
It finished with us all chipping-in to buy everything the shop had left (late 60's, endless summer holidays) and then heading home to steal all the sugar within our respective parents' homes.
...and taking turns to sledgehammer closed both ends of a 12' length of scaffolding tube which we subsequently laid up against a ruined castle wall. (To us, well in the countryside, in reality about a mile away from large town centre and humungous population)
This time we knew it would be a biggie.
It would be fair to say that we underestimated our newly acquired skills.
Never felt the need to progress further.....
Try a 15kg gas canister. More of a small crater than a hole...It progressed to 3/4" copper pipe, and a seriously big hole in the ground.
It finished with us all chipping-in to buy everything the shop had left (late 60's, endless summer holidays) and then heading home to steal all the sugar within our respective parents' homes.
...and taking turns to sledgehammer closed both ends of a 12' length of scaffolding tube which we subsequently laid up against a ruined castle wall. (To us, well in the countryside, in reality about a mile away from large town centre and humungous population)
This time we knew it would be a biggie.
It would be fair to say that we underestimated our newly acquired skills.
Never felt the need to progress further.....
fire extinguishers work well empty them and replace the contents with the aforementioned weed killer mix with a twist
dissolve the weed killer and sugar in hot water until it is like a wallpaper paste constancy and soak up with tissue allow to dry and pack out your fire extinguisher ( this gets around the troublesome premature ignition problem of mixing the weed killer and sugar in powdered form) use the extinguisher hose to contain your fuse and thanks to the concave bottom of the extinguisher you have a nice shaped charge
The Isle of Wight police spent weeks trying to find out who dug the hole in the school playing field using explosives.
then we moved on to making black powder and home made fire works how I made 16 I will never know
citizensm1th said:
northwest monkey said:
tumble dryer said:
It started with 1/2" copper pipe, bashed-in at both ends to 'hold' the pressure and then sat upon a pile of the stuff, with a trail fuse to give us a safe distance. (Easily 10 mtrs) Fuse takes, runs up to pile, pile takes really well, copper tube glows red and ignites weedkiller and sugar inside. (I know this because I actually watched the pipe balloon out before blowing up, from the safety of behind a big tree!) Impressive boom gotta be said. And hole in the ground.
It progressed to 3/4" copper pipe, and a seriously big hole in the ground.
It finished with us all chipping-in to buy everything the shop had left (late 60's, endless summer holidays) and then heading home to steal all the sugar within our respective parents' homes.
...and taking turns to sledgehammer closed both ends of a 12' length of scaffolding tube which we subsequently laid up against a ruined castle wall. (To us, well in the countryside, in reality about a mile away from large town centre and humungous population)
This time we knew it would be a biggie.
It would be fair to say that we underestimated our newly acquired skills.
Never felt the need to progress further.....
Try a 15kg gas canister. More of a small crater than a hole...It progressed to 3/4" copper pipe, and a seriously big hole in the ground.
It finished with us all chipping-in to buy everything the shop had left (late 60's, endless summer holidays) and then heading home to steal all the sugar within our respective parents' homes.
...and taking turns to sledgehammer closed both ends of a 12' length of scaffolding tube which we subsequently laid up against a ruined castle wall. (To us, well in the countryside, in reality about a mile away from large town centre and humungous population)
This time we knew it would be a biggie.
It would be fair to say that we underestimated our newly acquired skills.
Never felt the need to progress further.....
fire extinguishers work well empty them and replace the contents with the aforementioned weed killer mix with a twist
dissolve the weed killer and sugar in hot water until it is like a wallpaper paste constancy and soak up with tissue allow to dry and pack out your fire extinguisher ( this gets around the troublesome premature ignition problem of mixing the weed killer and sugar in powdered form) use the extinguisher hose to contain your fuse and thanks to the concave bottom of the extinguisher you have a nice shaped charge
The Isle of Wight police spent weeks trying to find out who dug the hole in the school playing field using explosives.
then we moved on to making black powder and home made fire works how I made 16 I will never know
I shudder to think that my kids, and now grandchildren, have or will ever take or do the same. Though somehow I think those days are long past.
ellroy said:
@turboslippers PIRA didn't use Sodium Nitrite, it was Ammonium Nitrite, such was the use that the Govt changed the amount in fertilizer so that the original ANFO mix they were knocking up would not work, so the bhoys developed ANS as a result which worked well with the new lower concentration levels of Nitrite.
Oh yes, I stand corrected...it was Ammonium Nitrate...tis nearly 30 years ago now!Wow, the fire extinguisher method sounds utterly crazy! That's taking it to a whole new level.
Yes, I was thinking back to how lucky we were that never came to any harm or what the consequences would be these days of such experiments. I cringe now when I remember that, in preparation for the summer scout camp, we went out from the hut one summer evening with a quantity of fertiliser/sugar mix with a view to testing it. We found a small road that had an overpass which was the main abergavenny/hereford road. In the tunnel, there was an excellent bit of missing concrete just ripe for packing in the coke can sized plastic bag of mix. So, in it went and naively we dangled some fuse out of it and lit it (without any charge) in the hope it might do something. When it didn't work...we just left it there! Someone at some point would have found that and wondered what the hell it was...
Can you imagine being caught by the police now, packing a road supporting tunnel with a quantity of explosives??
As thunderflashes were mentioned, there was one experiment we never got to try (due to lack of thunderflashes). This came from my dad's brother who was in the army so I have no idea whether army myth or true. Either way, dad informed me (having not tried it himself) that you get a bucket of paraffin and then heat it over a fire until it's near boiling. Then you lob in a thunderflash (with the fuse lit I assume). Apparently, you get a very cool mushroom cloud effect....anyone ever tried anything so stupid? (or amazing)
Ben
chopper602 said:
Saltpetre (Boots the chemist), sulphur (Boots the chemist), charcoal (bag in the garage) and different quantities of each. Like someone has said earlier, it's a real wonder I reached 16!
As mentioned, dad had a pharmacy with supplies in 20 rooms harking back to ye olde times when stuff was prepared onsite using all manner of ingredients. It was actually him that told us how to make gunpowder and then brought the ingredients home one bonfire night to 'experiment'. Mum was absolutely aghast as she could see her two lovely children completely wide eyed in fascination and amazement that dad was actually going to 'blow stuff up' for bonfire night. As it was he never got the mix right and it was more of a fizzle...Completely digressing again, I spent many happy hours hunting stuff out in his labyrinth. The massive stock of potassium permanganate was a result...that and glycerin made a much more enjoyable was to start a fire.
Then, one day, he asked me to have a fire to get rid of some stuff, using the waste land behind the shop. There was old doors, wooden display cabinets and tonnes of massive cardboard boxes that the bulk deliveries of nappies use to come with. He then, stupidly, allowed me to use anything I could find downstairs to assist in the fire taking hold. The 'Bottle room' was raided and I found two old gallon bottles of Acetone. Then I just picked anything else that had the flammable label and filled various drawers of these display units so I could compare which burned the best.
Needless to say, it was a pretty flipping excellent fire (especially the first 5s when it went up) but dad still recalls the shock/amuesement of seeing me sprinting along the train track in my wellies and and oversized white lab coat, chasing this cartwheeling 2mx1m inferno of a flattened nappy box which had blown away....
happy days
Ben
Amongst many of the stupid things to chuck on a bonfire. At one camp I was on, some fool half filled a cocoa tin with nothing more sinister than water. However he then pressed the lid down really hard, and put it in the red hot embers.
When it finally kettled the spray of hot water, went all over some poor lass giving her some really unpleasant second degree burns and quite a few scars...
I was nothing to do with that, that really was stupid
When it finally kettled the spray of hot water, went all over some poor lass giving her some really unpleasant second degree burns and quite a few scars...
I was nothing to do with that, that really was stupid
back in the dim distant past the sight of the very hot working part of a trip flare flying horizontally along a path used to really upset the RSM
he used to scream about what evil b
ds we were and that if we did not start taking the exercise seriously what would happen to bad boys at least that's what I thought I heard him say over our hysterical giggling.
he used to scream about what evil b
ds we were and that if we did not start taking the exercise seriously what would happen to bad boys at least that's what I thought I heard him say over our hysterical giggling. If you just want to make a big bang, get an empty paint tin, cut a 2p sized hole top and bottom. Fill with propane or LPG and set light to gas escaping from top hole. Best to retire to safe distance. Once gas burns down to perfect mix, you might be surprised by size of the bang. Do not weld lid of paint tin on of course, because that would be silly.
Tango13 said:
When I was a kid my dad offered to show me how dangerous weed killer and sugar was in the hope that it would stop me blowing my fingers off or worse.
I politely declined his offer and went back to throwing full aerosol cans of lighter fluid onto bonfires so I could shoot them with my air rifle
If you put them NEXT to the fire when you shoot them it is quite prettyI politely declined his offer and went back to throwing full aerosol cans of lighter fluid onto bonfires so I could shoot them with my air rifle
http://www.youtube.com/watch?v=E_FrfY0n9-0&ind...
sticks090460 said:
If you just want to make a big bang, get an empty paint tin, cut a 2p sized hole top and bottom. Fill with propane or LPG and set light to gas escaping from top hole. Best to retire to safe distance. Once gas burns down to perfect mix, you might be surprised by size of the bang. Do not weld lid of paint tin on of course, because that would be silly.
Adjusted for era this was my nearest approach to chaos and destruction too.Catering size Nescafe instant coffee powder tin. Fill with town gas from tap by fireplace (for gas poker). Site in garage. Why inside? You get a double noise - the bang then the clang as the lid bounces of the ceiling
regards,
Jet
6th year chemistry was fun. Making nitrocellulose, also IIRC silver nitrate and powdered aluminium had the capacity to blow cupboard doors off.
Then there was the time one of us came up with a recipe for tear gas...and letting it off in the pavilion at half time in the annual masters -v- prefects rugby match.
It proved so effective that the building was unusable for two days! Heads rolled...
Then there was the time one of us came up with a recipe for tear gas...and letting it off in the pavilion at half time in the annual masters -v- prefects rugby match.
It proved so effective that the building was unusable for two days! Heads rolled...
I might have made newspaper smoke "bombs" in my youth. 
http://sciencenotes.org/how-to-make-a-smoke-bomb-w...
http://sciencenotes.org/how-to-make-a-smoke-bomb-w...
carmadgaz said:
Tango13 said:
When I was a kid my dad offered to show me how dangerous weed killer and sugar was in the hope that it would stop me blowing my fingers off or worse.
I politely declined his offer and went back to throwing full aerosol cans of lighter fluid onto bonfires so I could shoot them with my air rifle
If you put them NEXT to the fire when you shoot them it is quite prettyI politely declined his offer and went back to throwing full aerosol cans of lighter fluid onto bonfires so I could shoot them with my air rifle
http://www.youtube.com/watch?v=E_FrfY0n9-0&ind...
That's the effect we used to get.
A friend of my dads is a chemist. Back is the 70's he worked for Polycell and when he wasn't testing new Polyfiller compounds by taking nipple casts of female staff members he used to make nitroglycerin, paint the round door handles with it and wait...
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