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| Backyard Ballistics This forum is dedicated to the safe teaching and responsible handling of high and low explosives. You will not find any information on how to make "bombs" or any such device(s) . Backyard ballistics will teach you the science and the art of pyrotechnics and how to manufacture and use explosives/pyrotechnics safely and responsibly. Backyard ballistics is also a haven for rocketry and pneumatic cannons. All information contained within this forum is for educational purposes ONLY. Totse does not accept responsiblity for any incident involving the use of the information contained within this forum. |
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#1
 2008-04-10, 23:15 |
Silver Cold 
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 Etch a Sketch, Mesh
Does anybody know what the Mesh of the Aluminum Powder you find in an Etch a sketch is..? Also i assume that, that powder can be used, Yes? correct me if I am wrong,
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#2
2008-04-11, 03:21 |
asilentbob
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Re: Etch a Sketch, Mesh
Ugh... seriously... your going to get so little out of it... that you will invariably have more fun with the etch-a-sketch as it originally was.
And aluminum? I thought it was iron shavings... them being more common in magnetic demonstrations...
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#3
2008-04-11, 08:07 |
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Moderator
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directly over the center of th
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Re: Etch a Sketch, Mesh
"The knobs move a stylus (http://en.wikipedia.org/wiki/Stylus) that displaces aluminium powder on the back of the screen, leaving a dark line as the stylus is moved."
http://en.wikipedia.org/wiki/Etch_A_Sketch
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#4
2008-04-11, 20:55 |
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Britain, Britain, Britain
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Re: Etch a Sketch, Mesh
Etch a Sketchs are way too much fun intact to waste them trying to extract what little aluminium they contain. Still I guess if its your only source or you have lots of them... What mesh size are they usually?
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#5
2008-04-11, 21:14 |
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Re: Etch a Sketch, Mesh
Quote:
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Originally Posted by tordek battlehammer
Etch a Sketchs are way too much fun intact to waste them trying to extract what little aluminium they contain. Still I guess if its your only source or you have lots of them... What mesh size are they usually?
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LOL there is no such thing as "only source" especially with Al. OP, just go get an Al rod or bar, or scrap metal and grind it down. Rat tail file ftw. Actually, I have some Mg left, I should go buy some KNO3, it's been AGES since I've made flash powder. |
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