Forums › Forums › Farktography General Chat › This week’s contest › 10-01-08 – Neon
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U-Man.
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October 1, 2008 at 10:57 pm #18718
Elsinore
KeymasterHalogen would be incandescent, right?
October 1, 2008 at 11:00 pm #18719October 1, 2008 at 11:05 pm #18720
orionidParticipantHalogens are weird. They do have a tungsten filiment, but it’s the excitation of the halogen gasses that give them the color temperature. I would probably fail safe though and say that halogens don’t count for this theme… Whis is why my question was whether the eiffel strobes were halogen or noble gas flashes? If they are krypton/argon/xenon etc, then they would be the same as a flashbulb.
October 1, 2008 at 11:19 pm #18721corsec67
ParticipantHalogens are weird. They do have a tungsten filiment, but it’s the excitation of the halogen gasses that give them the color temperature. I would probably fail safe though and say that halogens don’t count for this theme… Whis is why my question was whether the eiffel strobes were halogen or noble gas flashes? If they are krypton/argon/xenon etc, then they would be the same as a flashbulb.
Um, not quite. The Halogens redeposit the evaporated tungsten back on the filament, which allows the lamp to run hotter, which gives the hotter color temperature.
If Halogen lights were gas discharge lighting, then they wouldn’t have a filament from one side to the other. With the filament going from one side to the other means that not a lot of power is going through the gas.
They are pure incandescent lights, with the halogen preserving the filament.
Wikipedia has a good description.
October 1, 2008 at 11:31 pm #18722orionidParticipantHalogens are weird. They do have a tungsten filiment, but it’s the excitation of the halogen gasses that give them the color temperature. I would probably fail safe though and say that halogens don’t count for this theme… Whis is why my question was whether the eiffel strobes were halogen or noble gas flashes? If they are krypton/argon/xenon etc, then they would be the same as a flashbulb.
Um, not quite. The Halogens redeposit the evaporated tungsten back on the filament, which allows the lamp to run hotter, which gives the hotter color temperature.
If Halogen lights were gas discharge lighting, then they wouldn’t have a filament from one side to the other. With the filament going from one side to the other means that not a lot of power is going through the gas.
They are pure incandescent lights, with the halogen preserving the filament.
Wikipedia has a good description.
Thanks for that. That was quite the informative read. As far as the eiffel tower, all I can find is that the strobes were made by philips. Can’t find any details about them. I’ll avoid controversy and save that pic for a more fitting theme.
October 2, 2008 at 12:02 am #18723linguine
ParticipantOctober 2, 2008 at 12:26 am #18724KeymasterWell now that my posting problems are resolved, I’d like opinions on the Northern Lights. Aurora Borealis doesn’t seem to me to fit the definition of “low pressure, gas discharge lighting”
October 2, 2008 at 12:32 am #18725Choc-Ful-A
ParticipantI was in the middle of posting this image when I belated noticed the “no casinos” difficulty. D’oh!
I caught it before I hit the submit button, so I don’t need a moderator clean-up. But do like the crop so I thought I’d at least post it here.
October 2, 2008 at 12:35 am #18726nobigdeal
ParticipantWell now that my posting problems are resolved, I’d like opinions on the Northern Lights. Aurora Borealis doesn’t seem to me to fit the definition of “low pressure, gas discharge lighting”
My .02
If I am not mistaken they are made up mostly of nitrogen & oxygen molecules.
Both are gases.
Both are definitely under low pressure.
So?
Works for me.
I am not a scientist…YMMV
October 2, 2008 at 12:36 am #18727KeymasterThat’s cool, Choc-Ful-A
October 2, 2008 at 12:39 am #18728KeymasterWell now that my posting problems are resolved, I’d like opinions on the Northern Lights. Aurora Borealis doesn’t seem to me to fit the definition of “low pressure, gas discharge lighting”
My .02
If I am not mistaken they are made up mostly of nitrogen & oxygen molecules.
Both are gases.
Both are definitely under low pressure.
So?
Works for me.
I am not a scientist…YMMV
Yeah, I looked on Wikipedia on Aurora Borealis and it mentioned the different colors created by the different elements. I’d been under the impression they were free electrons/protons and not so much heavier elements. Does the plasma globe jpatton posted function the same way?
October 2, 2008 at 12:40 am #18729KeymasterAnd to answer my own question re: plasma globes:
“Tesla called this invention an inert gas discharge tube.”
October 2, 2008 at 2:00 am #18730mopsy
ParticipantI was in the middle of posting this image when I belated noticed the “no casinos” difficulty. D’oh!
I caught it before I hit the submit button, so I don’t need a moderator clean-up. But do like the crop so I thought I’d at least post it here.
Hope you get to use the photo in another contest. Great composition!
October 2, 2008 at 3:16 am #18731SilverStag
ParticipantWow, good stuff so far… keep em coming!
October 2, 2008 at 3:21 am #18732KeymasterYou forgot to mention looking forward to Elsinore’s shot of bugpron on a neon sign 🙂
lol 😆 Alas, the bugs prefer to mate on flowers. Goldenrod is a happening place these days…
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