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4hv.org :: Forums :: General Science and Electronics
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Mystery Photos from TDU

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Spedy
Thu Aug 30 2007, 02:59PM
Spedy Registered Member #964 Joined: Wed Aug 22 2007, 12:39AM
Location: Stockton, CA
Posts: 134
Would the red be neon? I'm not shure, but I've alwaus seen real neon tube glow red..
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Dalus
Thu Aug 30 2007, 03:01PM
Dalus Registered Member #639 Joined: Wed Apr 11 2007, 09:09PM
Location: The Netherlands, Herkenbosch
Posts: 512
Helium, Neon, Argon and Krypton I think.
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Tesladownunder
Thu Aug 30 2007, 04:04PM
Tesladownunder Registered Member #10 Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424
Alright, how about this one?
Are you running out of gases?

TDU
1188489876 10 FT10696 Mystery 73
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Dalus
Thu Aug 30 2007, 07:26PM
Dalus Registered Member #639 Joined: Wed Apr 11 2007, 09:09PM
Location: The Netherlands, Herkenbosch
Posts: 512
I think you used Xenon for the white, Radon for yellow, which gas you used for the green I don't know. Maybe some kind of mixture or a solid chemical on the electrodes.
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Marko
Thu Aug 30 2007, 08:07PM
Marko Registered Member #89 Joined: Thu Feb 09 2006, 02:40PM
Location: Zadar, Croatia
Posts: 3145
I would really hate to use radon for these things.
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Electroholic
Thu Aug 30 2007, 09:42PM
Electroholic Registered Member #191 Joined: Fri Feb 17 2006, 02:01AM
Location: Esbjerg Denmark
Posts: 720
that looks too even to be done with gas.
you didn't use filters, did you?
anyways, sick pictures.
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Tesladownunder
Thu Aug 30 2007, 11:09PM
Tesladownunder Registered Member #10 Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424
Yep, I used filters.
The gases were Nitrogen 74%, Oxygen 21%, Argon 1% etc In other words - air.
So how did I use them and what effect am I trying to recreate from fiction?

TDU
1188515355 10 FT10696 Mystery 74
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Bored Chemist
Fri Aug 31 2007, 05:52AM
Bored Chemist Registered Member #193 Joined: Fri Feb 17 2006, 07:04AM
Location: sheffield
Posts: 1022
74+21+1=?
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Tesladownunder
Fri Aug 31 2007, 11:59PM
Tesladownunder Registered Member #10 Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424
Perhaps it is 78% + 21% + 0.9% + etc, where you are but "downunder" the air has a certain extra percentage of freshness. (Or perhaps I am generating too much ozone).

TDU
1188604763 10 FT10696 Hvicmulticolredwhite00111000
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OZZY
Sat Sept 01 2007, 10:18AM
OZZY Registered Member #511 Joined: Sat Feb 10 2007, 11:36AM
Location: Somerset UK
Posts: 55
The pictures were taken through a rotating colour filter from a disco light. As to what you are trying to re-produce, I have no idea.
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