You-fool
#16
Posted 08 October 2007 - 03:37 PM
Nearly all these how-to-make-flash videos disappeared by now! Think itīs a step in the right direction!
#17
Posted 08 October 2007 - 08:55 PM
#18
Posted 08 October 2007 - 09:12 PM
Keep mannequins and watermelons away from fireworks..they always get hurt..
#19
Posted 09 October 2007 - 05:16 AM
http://www.metacafe....e_a_flash_bomb/
#20
Posted 09 October 2007 - 07:11 AM
there is some really irresponsible stuff on You Tube, gives fireworks a bad name.
Quite rightly!! And i'v said this before,we shouldn't be posting links to these kinds of idiotic,irresponsible and dangerous acts.
He laughs about it !! Hope he had a trip to A&E
dean
#21
Posted 24 October 2007 - 09:42 PM
#22
Posted 25 October 2007 - 02:45 PM
Can I just check here please, are you saying storing things in plastic bags is bad?alu powder, plastic bag, static charge, 404 error...
IPP page 31, in the section "Black Powder (BP) via the Precipitation Method", under the title "Safety Notes" says:
All black powders are sensitive to friction and sparks. Black powder must never be stored in glass jars or metal cans with press fit lids (like paint cans). Old black powder cans are ideal. Ziploc bags are also commonly used.
So I bought some Ziplock plastic bags exactly for this purpose.
#23
Posted 25 October 2007 - 03:29 PM
Can I just check here please, are you saying storing things in plastic bags is bad?
IPP page 31, in the section "Black Powder (BP) via the Precipitation Method", under the title "Safety Notes" says:
So I bought some Ziplock plastic bags exactly for this purpose.
It's possible to buy anti static ziplock bags for storing electronic components, might be a better bet?
#24
Posted 25 October 2007 - 03:35 PM
No, zip-loc bags should be fine for black powder. Although BP is very sensitive to flame and 'physical sparks' eg hot metal or a glowing ember, it is usually fairly insensitive to static electricity and a small zip-loc doesn't hold much charge. See here for a demo:Can I just check here please, are you saying storing things in plastic bags is bad?
http://www.pyrosocie...hl=static tests
Storing flash powder in plastic bags probably isn't a good idea, but frankly storing it at all is madness. I tend to prefer paper bags for stars as it allows them to 'breathe' and finish drying if needed.
One thing to consider though is that if there was to be an accident in your workshop, eg if a rocket ignited while ramming, you would probably want to have your composition in a container that would shield it from the shower of sparks. I suppose for a small quantity of BP, a ziplock bag in a biscuit tin would be fine, but it's what lead me down the elaborate path discussed here:
http://www.pyrosocie...ng black powder
Edited by BrightStar, 25 October 2007 - 04:14 PM.
#25
Posted 25 October 2007 - 04:22 PM
#26
Posted 25 October 2007 - 08:22 PM
I think the first comment from user Nevrosert has this spot on... apparently, dangerous or illegal activity is not something that YouTube considers grounds for removal...
Edited by BrightStar, 25 October 2007 - 09:10 PM.
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