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4hv.org :: Forums :: General Science and Electronics
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random stringey smokey stuff from open-air copper mechanical switch?

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ramses
Fri Feb 01 2008, 04:18PM Print
ramses Registered Member #1208 Joined: Thu Jan 03 2008, 05:30PM
Location: Chesterland, OH
Posts: 154
well i just got a bunch of caps and threw 2 in parallel for 4800uf at up to 300v. hooked it up to my Coil gun and switched with the "touchin' 2 wirez 2gether" method with copper wire and a penny:


this caused a lot of smoke, which went up(smoke tends to do that.)

then a weird stringy thread thing floated down. i recreated the situation and took a picture


I was just kind of wondering what the heck this could be, because it seems to be a solid or a plastic(the state, not the material)that formed from copper vapor. all theories welcome.

since i am retarded, and don't know how to move the pictures(explanation, plz?), they are from top to bottom,

floaty thing
floaty thing (zoomed)
sparks from the shot

1201882401 1208 FT0 100 3440

2

1201882401 1208 FT0 100 3446


sorry about the white border, i can't use paint to save my live!
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atomicthumbs
Fri Feb 01 2008, 06:38PM
atomicthumbs Registered Member #498 Joined: Sun Nov 19 2006, 06:00PM
Location: Bay Area
Posts: 19
Can you pick it up? Show it in your hand. Does it droop or sag when you pick it up or is it rigid?
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Firnagzen
Sat Feb 02 2008, 01:35AM
Firnagzen Registered Member #567 Joined: Tue Mar 06 2007, 10:55AM
Location: Singapore
Posts: 147
How heavy is it? Also, what happens after a while? Disappears, melts, etc?
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ramses
Sun Feb 03 2008, 04:13PM
ramses Registered Member #1208 Joined: Thu Jan 03 2008, 05:30PM
Location: Chesterland, OH
Posts: 154
I can't pick it up, probably because it is so fragile, but it is VERY light and almost translucent. i can't seem to confine it to see what happens to it, and i end up loosing it after like 30 seconds. I hope that cleared that up.
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Conundrum
Sun Feb 03 2008, 06:08PM
Conundrum Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4062
Some sort of low density aerogel?

Regards, -A

"Bother" said Pooh, as he realigned the core manually...
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Spedy
Sun Feb 03 2008, 09:44PM
Spedy Registered Member #964 Joined: Wed Aug 22 2007, 12:39AM
Location: Stockton, CA
Posts: 134
0o I;ve read about metal-based aerogels somewhere, it's very cool that you possibly made some w/ such a simple device.
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ramses
Fri Aug 28 2009, 10:12PM
ramses Registered Member #1208 Joined: Thu Jan 03 2008, 05:30PM
Location: Chesterland, OH
Posts: 154
super, MEGA bump!!!!

I re-created this burning zinc from pennies in my driveway. here are some better pictures, curves tweaked for clarity.
1251497516 1208 FT38377 Cimg4093

1251497516 1208 FT38377 Cimg4095
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big5824
Fri Aug 28 2009, 10:53PM
big5824 Registered Member #1687 Joined: Tue Sept 09 2008, 08:47PM
Location: UK, Darlington
Posts: 240
Is it glowing??? or is that just the flash
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Bored Chemist
Sat Aug 29 2009, 08:51AM
Bored Chemist Registered Member #193 Joined: Fri Feb 17 2006, 07:04AM
Location: sheffield
Posts: 1022
Congratulations!
You have rediscovered "philosopher's wool" The light fluffy form of zinc oxide.
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MinorityCarrier
Sat Aug 29 2009, 06:35PM
MinorityCarrier Registered Member #2123 Joined: Sat May 16 2009, 03:10AM
Location: Bend, Oregon
Posts: 312
Oh, that stuff.

Mix up a batch of zinc dust and sulfer (60:40) ignite it, and in the resulting yellowish smoke cloud you will see a lot of these.
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