Spectral data

Dear user Deglr6328, I've got a similar request to the previous poster. For science purposes, we would need the fairly accurate emission spectra of several types of light source, and we are not physicists who can easily measure them ourselves. If you can help us in this regard, or if you want further information about what exactly we need the spectra for, please mail me at wilkie (whirlpool) cgg dot ms dot mff dot cuni dot cz Many thanks! A.W. —Preceding unsigned comment added by Alexander Wilkie (talk • contribs) 09:01, 14 October 2008 (UTC)[reply]

Spectrum in ascii format?

Dear Deglr6328, thank you for your useful contribution of the spectra, is it possible obtain a ascii format copy of the HeNe spectrum? would be glad if you could send it to konradb at gmx dot at Thank you! —Preceding unsigned comment added by Konze (talk • contribs) 08:56, 13 September 2008 (UTC)[reply]

Shock wave

Dear sir,

You have changed the shock wave to its erroneous state. I know that you like to vandalize. Look it is not proper to vandalize, you have very little knowledge of shock wave or compressible flow. Perhaps you should read my book before try to edit my parts. You should read my remarks in the talk section before you make any changes. If you believe that you are right, than you should identify your self and get prize for you new discoveries. I like to know why you think any of the mistakes in shock wave should be remained.

My name is Genick Bar-Meir and you can email me at barmeir at gmail.comor check www.potto.org.

If you do not stop vandalizing I will be forced to ask the administrator for help.

Deglr6328 - taking care of this, don't bother (unless you want to). Maury 18:38, 1 February 2007 (UTC)[reply]

Oh yeah, wasn't I supposed to be contacting someone about the copyright status of some image? Argonne maybe? LNLL? Maury 19:05, 1 February 2007 (UTC)[reply]

Thanks very much for your kind words Maury! someone deleted http://en.wikipedia.org/w/index.php?title=Special:Log&page=Image:Fiber_optic_bundle.jpg that image (fiber optics) and I gave up trying to keep it in the article. oh well.--Deglr6328 05:40, 2 February 2007 (UTC)[reply]

polycarbonate NIR spectrum - sample thickness?

Deglr6328,

This is my first attempt to do something other than browse/view Wikipedia content, so please be kind. I have a comment regarding the NIR absorbance spectrum for polycarbonate, and this comment may apply to other spectra you have contributed. In the polycarbonate spectrum, the vertical axis is % transmission, but no pathlength/material thickness figure is given. Hence, this is really a relative absorbance spectrum. If the path length is available, it would be really useful if it were indiccated on the spectrum.

Thanks for your contribution, which has been helpful to me already.

Cheers, eqpi

Cool I'm so glad the information was of use to you! I used a pair of plastic saftey goggles from UVEX to get that transmittance spectrum. Here they are [1]. Unfortunately they dont provide any information on the thickness of the lenses. Tell you what, tomorrow I will measure them and let you know here. --Deglr6328 05:04, 14 February 2007 (UTC)[reply]

The path length of the polycarbonate was 2.3 mm. Hope that helps! --Deglr6328 21:35, 14 February 2007 (UTC)[reply]

I have been disturbed by the streak of people I run into on the internet and real world, so my curiosity makes me want to meet another wikipedia editor. My edits have always been anonymous, and I study neuroscience, organic chemistry, and physics for the most part. My aim/aol mail is priestknowledge... I've been at a loss for how to enact my beliefs as of late, and I haven't been able to find those of like mind. I'm wondering what your life experiences are like for comparison. Maybe strike up some significant conversation while I'm at it. —Preceding unsigned comment added by Priestofknowledge (talk • contribs) 07:37, 20 November 2009 (UTC)[reply]

Peter Pan

On Image:Contaminated Peter Pan peanut butter.jpg, you've failed to provide a source for the image. If you created the image yourself (and I suspect that's probably the case), just say so on the image description next to your "yummy but deadly" comment. In that case, you also might want to change the license tag from {{GFDL}} to {{GFDL-self}}. SchuminWeb (Talk) 08:50, 17 February 2007 (UTC)[reply]

It is under gfdl-self.--Deglr6328 23:57, 17 February 2007 (UTC)[reply]

Gay Germ Theory

Hey it's me, Drowssap Looc. I added a notes section using cite.php. This should make it easy for other people to clean up their referencing. I've already used it for my stuff. It would be great if that article started looking like the Autism page on wiki... I won't hold my breath. —The preceding unsigned comment was added by Drowssap Looc (talk • contribs) 02:56, 18 February 2007 (UTC).[reply]

GA on Nova

Well we did it, we passed GA on Nova. Now for HiPER... Maury 00:12, 27 February 2007 (UTC)[reply]

The big problem with HiPER is a lack of outside refs, because the ones I used were sent to me directly by one of the primary investigators. Under normal conditions this would be be a good thing, but... If you have any refs from the print world that would help. And yeah, the cone-in-shell would definitely add to the article, the single picture just doesn't do it. Maury 21:38, 27 February 2007 (UTC)[reply]

Spectra

Thanks for your spectra charts; I enjoyed them! -- Morcheeba 07:40, 9 March 2007 (UTC)[reply]

sure! glad you like them. --Deglr6328 07:49, 9 March 2007 (UTC)[reply]

Image:Incandescent flashlight spectrum.gif listed for deletion

An image or media file that you uploaded or altered, Image:Incandescent flashlight spectrum.gif, has been listed at Wikipedia:Images and media for deletion. Please look there to see why this is (you may have to search for the title of the image to find its entry), if you are interested in it not being deleted. Thank you. Srleffler 01:21, 16 March 2007 (UTC)[reply]

PS. See Talk:Black body#Something is wrong with "the spectrum of an incandescent bulb in a typical flashlight"?! for a discussion of why this is necessary.

Hafnium

Dear Sir, I am intrigued by your hafnium photograph. I work on zirconium and titanium alloys, and occasionnaly on hafnium. Actually, I find the patterns displayed by the colours very interesting. Could you tell me more about the history of the material used for this picture ? Do the colours have their origin in an oxide layer formed at high temperature, and do you know if the lump has been heated over the allotropic transformation temperature (ca. 1750 °C) ? I can be contacted at : nv*at*altern.org

Thank you.

The lump has been heated to liquification and I suspect the colors are created by thin oxide (or nitride?) layers that formed on the surface when it was taken out of vacuum while still somewhat hot.--Deglr6328 06:54, 23 March 2007 (UTC)[reply]

Deionised Water

The HiFog system was selected for the protection of the computer equipment (and other valuable assets) at my company. The system is also used in several other locations where non conductivity of the extinguishant is vital. One of the trials of the system was where it was used to protect a High Voltage AC installation (415 volts). I do not know if they have trialled it for higher voltages. One of the main features is that once the extinguishant has discharged, the protected electrical and electronic equipment can be operational again in just a few hours (presumably excluding the bit that actually set it off in the first place). In view of the value of the assets that these systems are now protecting, I can only assume that the suppliers would not make such boasts wrecklessly, because if they are wrong, we would be suing them for billions. I B Wright 16:15, 1 April 2007 (UTC)[reply]

POTD notification

This is to let you know the Featured Picture you uploaded and/or nominated Image:High Resolution Solar Spectrum.jpg is scheduled to be Picture of the day on May 17, 2007, when it will be featured on the Main Page. Please feel free to edit the caption, which is at Template:POTD/2007-05-17. Congratulations! howcheng {chat} 06:13, 22 April 2007 (UTC)[reply]

Image:Pitch drop experiment.jpg

Thanks for uploading Image:Pitch drop experiment.jpg. I notice the 'image' page specifies that the image is being used under fair use, but its use in Wikipedia articles fails our first fair use criterion in that it illustrates a subject for which a freely licensed image could reasonably be found or created that provides substantially the same information. If you believe this image is not replaceable, please:

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Image:Gas stove blue flame.jpg

Ok, so it says it is used in permission in "this article" - which is a link to [2]. So, presumably it is not being used with permission in the other 3 articles in which it is featured? Not a dog 22:36, 5 May 2007 (UTC)[reply]

Further, nothing here indicates that the image is released under a Creative Commons 2.0 license as you indicated. It states it is under copyright, but used with permission at one Wikipedia article (which I don't think is acceptable - it needs to be released under GDFL, I believe). Not a dog 22:48, 5 May 2007 (UTC)[reply]

I've nominated the image for deletion. Perhaps you can persuade the copyright holder to release it under a CC-BY or CC-BY-SA license so that it will not be deleted. —Remember the dot ^(talk) 22:52, 8 May 2007 (UTC)[reply]

Possibly unfree Image:Chandrasekhara Venkata Raman.gif

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.

Argon

Hey, I just ran across Image:Argon ice 1.jpg and I wanted to say thanks for the great image. I realize it didn't get featured, and honestly I might have voted against it also, but that doesn't mean it's not appreciated. Vicarious 19:39, 14 May 2007 (UTC)[reply]

Image:High Resolution Solar Spectrum.jpg

Hi, Image:High Resolution Solar Spectrum.jpg has been nominated for deletion from Commons. You can join in the discussion if you wish at Commons:Deletion requests/Image:High Resolution Solar Spectrum.jpg. Regards, howcheng {chat} 16:22, 17 May 2007 (UTC)[reply]

Possibly unfree Image:Fluorescence in various sized CdSe quantum dots.png

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Fair use rationale for Image:Lichtenberg_discharge_(st_elmos_fire)_on_aircraft_window.jpg

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Fair use rationale for Image:Fluorescence in various sized CdSe quantum dots.png

Thanks for uploading or contributing to Image:Fluorescence in various sized CdSe quantum dots.png. I notice the image page specifies that the image is being used under fair use but there is no explanation or rationale as to why its use in Wikipedia articles constitutes fair use. In addition to the boilerplate fair use template, you must also write out on the image description page a specific explanation or rationale for why using this image in each article is consistent with fair use. Suggestions on how to do so can be found here.

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Image:Lichtenberg discharge (st elmos fire) on aircraft window.jpg

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Wikistress

Hi Deglr6328. You seem to have a lot of interests in common with me, since it happens quite often that I see your name. Anyway, I noticed this edit on glowstick. Please don't leave because of that! I agree that vandalism can be a pain and I wouldn't mind if it were easier to (semi-)block articles, but that's not enough to consider leaving.

Anyway, now that I'm here anyway:

could you comment on Talk:FASOR (laser physics)?
did you get around to calibrating your spectrometer for the various spectra that you measured? If you still have the spectra and a calibration file, but find it too much work to make the plots again, I could do that for you, at least for the plots without annotations. I can write a script that reprocesses all data automatically. If you're interested, it might be better to use email. My address can easily be found on a search engine from the info on my user page.

Han-Kwang 21:31, 10 July 2007 (UTC) (soon on wikibreak, better reply in email or my talk)[reply]

Vandalproof

When adding your name, please read the requirements, and capitalise your username. Ale_Jrb ^talk 09:30, 11 July 2007 (UTC)[reply]

Replaceable fair use Image:Superconductor quench.jpg

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Image:Spectrum of halophosphate

I'd like to use this image in my thesis. I need a real name to cite it. I'm new to wikipedia, and don't know how to work around the name/email problems. Thanks! Abee60 18:01, 3 August 2007 (UTC)[reply]

Image:Occam.jpg

Hi. I see from an Internet Archive Wayback Machine page that you uploaded the subject image here at 06:58, 10 July 2005 (UTC), using category "Images of philosophers" and description "William of Occam {{PD}}", later changed to {{PD-art}}. I was hoping you could shed some light on the source of the subject image, and perhaps contribute to the discussion of it at Commons:User talk:Polarlys#Image:Occam.jpg. Thanks! — Jeff G. (talk|contribs) 21:04, 9 August 2007 (UTC)[reply]

Image:RTGmodule.gif listed for deletion

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Possibly unfree Image:RCA1802 CPU.jpg

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Image copyright problem with Image:ISKRA-4 laser 8 beam target chamber.jpg

Image Copyright problem

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And also: Image:ISKRA-5 12 beam target chamber.jpg Alex Spade 20:32, 29 September 2007 (UTC)[reply]

Possibly unfree Image:RCA1802_CPU.jpg

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Fair use rationale for Image:Bumcivilian(satire).jpg

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Deuterium arc lamp update

Hello, I've just started editing articles on Wikipedia and I've started by expanding the article on deuterium arc lamps that you started last year. I was wondering if you could give me some advice on my update: what do think needs to be added, what should be taken out, etc. Thanks for your help!

eggles37 —Preceding unsigned comment added by Eggles37 (talk • contribs) 00:07, 8 October 2007 (UTC)[reply]

Spinthariscope.jpg

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Image:Meissner effect.jpg

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Fair use rationale for Image:Molotov cocktease.jpg

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Orphaned non-free image (Image:Meissner effect.jpg)

⚠

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Image wanted

Hi. I noticed you commented on this engine image. You may like to comment on the planned new image here Cuddlyable3 (talk) 12:20, 16 July 2008 (UTC)[reply]

Orphaned non-free media (Image:SOHO EIT ultraviolet corona image.gif)

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"Plasmao2n2 spektrum.png"

Hi there, I'm sorry that my response is that late; I did not log in (Commons) for a year... If you are still interested in that picture, feel free to ask Greetings --87.180.94.173 (talk) 08:33, 30 July 2008 (UTC)[reply]

Speedy deletion of Image:Laser speckle.jpg

A tag has been placed on Image:Laser speckle.jpg requesting that it be speedily deleted from Wikipedia. This has been done under section I8 of the criteria for speedy deletion, because it is available as a bit-for-bit identical copy on the Wikimedia Commons under the same name, or all references to the image on Wikipedia have been updated to point to the title used at Commons.

If you think that this notice was placed here in error, you may contest the deletion by adding {{hangon}} to the top of the page that has been nominated for deletion (just below the existing speedy deletion or "db" tag), coupled with adding a note on [[ Talk:Image:Laser speckle.jpg|the talk page]] explaining your position, but be aware that once tagged for speedy deletion, if the article meets the criterion it may be deleted without delay. Please do not remove the speedy deletion tag yourself, but don't hesitate to add information to the article that would would render it more in conformance with Wikipedia's policies and guidelines. Lastly, please note that if the article does get deleted, you can contact one of these admins to request that a copy be emailed to you. ░▒▓Frogger3140▓▒░ (talk) 22:52, 8 October 2008 (UTC)[reply]

Xenon Flash Lamp article needs work

Hi, I noticed that you have commented in the past on the Xenon Flash Lamp article. I have built many hundreds of flashlamps, and various power supplies for them. After reading that article I feel that it needs some improvement, as some info doesn't make any sense, and one section is almost unreadable. I have proposed some changes, but I would like to get some input from others before I implement them. I'm fairly new a Wikipedia, and not sure how to include things like the references I've listed. Any comments you would like to leave on the Xenon Flash talk page would be appreciated. ThanksZaereth (talk) 19:39, 5 November 2008 (UTC)[reply]

Image source problem with Image:Taser.jpg

Image Copyright problem

Thanks for uploading Image:Taser.jpg. I noticed that the file's description page currently doesn't specify who created the content, so the copyright status is unclear. If you did not create this file yourself, you will need to specify the owner of the copyright. If you obtained it from a website, then a link to the website from which it was taken, together with a restatement of that website's terms of use of its content, is usually sufficient information. However, if the copyright holder is different from the website's publisher, their copyright should also be acknowledged.

If you have uploaded other files, consider checking that you have specified their source and tagged them, too. You can find a list of files you have uploaded by following this link. Unsourced and untagged images may be deleted one week after they have been tagged, as described on criteria for speedy deletion. If the image is copyrighted under a non-free license (per Wikipedia:Fair use) then the image will be deleted 48 hours after 21:36, 28 December 2008 (UTC). If you have any questions please ask them at the Media copyright questions page. Thank you. Sherool (talk) 21:36, 28 December 2008 (UTC)[reply]

Image tagging for File:Taser.jpg

Thanks for uploading File:Taser.jpg. The image has been identified as not specifying the source and creator of the image, which is required by Wikipedia's policy on images. If you don't indicate the source and creator of the image on the image's description page, it may be deleted some time in the next seven days. If you have uploaded other images, please verify that you have provided source information for them as well.

For more information on using images, see the following pages:

This is an automated notice by OrphanBot. For assistance on the image use policy, see Wikipedia:Media copyright questions. 08:22, 1 January 2009 (UTC)[reply]

Fair use rationale for File:Moons shodow in muons.gif

Thanks for uploading or contributing to File:Moons shodow in muons.gif. I notice the file page specifies that the file is being used under fair use but there is not a suitable explanation or rationale as to why each specific use in Wikipedia constitutes fair use. Please go to the file description page and edit it to include a fair use rationale.

If you have uploaded other fair use media, consider checking that you have specified the fair use rationale on those pages too. You can find a list of 'file' pages you have edited by clicking on the "my contributions" link (it is located at the very top of any Wikipedia page when you are logged in), and then selecting "File" from the dropdown box. Note that any non-free media lacking such an explanation will be deleted one week after they have been uploaded, as described on criteria for speedy deletion. If you have any questions please ask them at the Media copyright questions page. Thank you. Stifle (talk) 16:42, 25 February 2009 (UTC)[reply]

File:Pakoras3.jpg listed for deletion

An image or media file that you uploaded or altered, File:Pakoras3.jpg, has been listed at Wikipedia:Files for deletion. Please see the discussion to see why this is (you may have to search for the title of the image to find its entry), if you are interested in it not being deleted. Thank you. – Quadell ^(talk) 01:27, 9 April 2009 (UTC)[reply]

CSV data file for http://en.wikipedia.org/wiki/File:Chemoluminescent_lightstick_spectral_curves.png

Hi, Is there anyway you could post the csv file for http://en.wikipedia.org/wiki/File:Chemoluminescent_lightstick_spectral_curves.png? It is no longer on the talk page. Thanks Simvastatin (talk) 02:31, 5 May 2009 (UTC)Simvastatin[reply]

-- I'm afraid not. Someone deleted the information and it is now lost. Just one of the many reasons I left Wikipedia. -Deglr6328

NowCommons: File:Ampoule.jpg

File:Ampoule.jpg is now available on Wikimedia Commons as Commons:File:Ampoule pharmaceutique.JPG. This is a repository of free media that can be used on all Wikimedia wikis. The image will be deleted from Wikipedia, but this doesn't mean it can't be used anymore. You can embed an image uploaded to Commons like you would an image uploaded to Wikipedia, in this case: [[File:Ampoule pharmaceutique.JPG]]. Note that this is an automated message to inform you about the move. This bot did not copy the image itself. --Erwin85Bot (talk) 03:33, 22 May 2009 (UTC)[reply]

File:White LED.png is now available as Commons:File:White LED.png. --Erwin85Bot (talk) 10:53, 23 August 2009 (UTC)[reply]

File:Nick Holonyak Jr.jpg is now available as Commons:File:Nick Holonyak Jr.jpg. --Erwin85Bot (talk) 19:39, 29 October 2009 (UTC)[reply]

File source problem with File:Galileo hga ribs.gif

File Copyright problem

Thanks for uploading File:Galileo hga ribs.gif. I noticed that the file's description page currently doesn't specify who created the content, so the copyright status is unclear. If you did not create this file yourself, you will need to specify the owner of the copyright. If you obtained it from a website, then a link to the website from which it was taken, together with a restatement of that website's terms of use of its content, is usually sufficient information. However, if the copyright holder is different from the website's publisher, their copyright should also be acknowledged.

If you have uploaded other files, consider checking that you have specified their source and tagged them, too. You can find a list of files you have uploaded by following this link. Unsourced and untagged images may be deleted one week after they have been tagged, as described on criteria for speedy deletion. If the image is copyrighted under a non-free license (per Wikipedia:Fair use) then the image will be deleted 48 hours after 03:31, 26 July 2009 (UTC). If you have any questions please ask them at the Media copyright questions page. Thank you. CountingPine (talk) 03:31, 26 July 2009 (UTC)[reply]

File:Video_contact_angle.gif

This image has been spotted in the following publication without attribution but is declared GPL here? "Controlled Probe Surface Chemistry for Nanoscale Contact Deformation", by Catherine A Tweedie, Georgios Constantinides, Gregory S Blackman, and Krystyn J Van Vliet, Mater. Res. Soc. Symp. Proc. Vol. 1021, 2007, page 1021-HH06-01 -- figure 2 (inset) User2589 (talk) 21:06, 22 October 2009 (UTC)[reply]

I assure you that I created that image on a VCA device and I could easily do another one to prove it. I am afraid Tweedie et. al. and Materials Research Society are in obvious violation of the GFDL. I don't have access to the paper but I would love to know whether the image is merely being used illustratively (in which case, I could really care less about it) or if it is actually being passed off as their own research, in which case I would suggest the validity of Ms. Tweedie's research and her degree may be called into question. --Deglr6328 (talk) 08:04, 6 November 2009 (UTC)[reply]

Intensity corrected spectra discrepancy

Regarding http://en.wikipedia.org/wiki/File:Spectrum_of_blue_flame.png I don't understand why the intensity corrected spectra is different than the uncorrected. In particular, the 510nm peak is significantly attenuated. Is this due to PMT spectral sensitivity? I thought 'corrected' simply meant 'calibrated'. Also, why would 'correction' add noise? Is that curve from a separate measurement, or just the original data multiplied by another curve? What is the correction curve which the uncorrected is being multiplied against? 69.108.2.81 (talk) 21:54, 13 November 2009 (UTC)[reply]

Fair use rationale for File:Large helical device shot.gif

Thanks for uploading or contributing to File:Large helical device shot.gif. I notice the file page specifies that the file is being used under fair use but there is not a suitable explanation or rationale as to why each specific use in Wikipedia constitutes fair use. Please go to the file description page and edit it to include a fair use rationale.

If you have uploaded other fair use media, consider checking that you have specified the fair use rationale on those pages too. You can find a list of 'file' pages you have edited by clicking on the "my contributions" link (it is located at the very top of any Wikipedia page when you are logged in), and then selecting "File" from the dropdown box. Note that any non-free media lacking such an explanation will be deleted one week after they have been uploaded, as described on criteria for speedy deletion. If you have any questions please ask them at the Media copyright questions page. Thank you. Sfan00 IMG (talk) 23:36, 8 December 2009 (UTC)[reply]

Proposed deletion of 4 pi laser

The article 4 pi laser has been proposed for deletion because of the following concern:

Unreferenced for 3½ years, fails WP:V.

While all contributions to Wikipedia are appreciated, content or articles may be deleted for any of several reasons.

You may prevent the proposed deletion by removing the {{dated prod}} notice, but please explain why in your edit summary or on the article's talk page.

Please consider improving the article to address the issues raised. Removing {{dated prod}} will stop the proposed deletion process, but other deletion processes exist. The speedy deletion process can result in deletion without discussion, and articles for deletion allows discussion to reach consensus for deletion. Stifle (talk) 10:51, 28 April 2010 (UTC)[reply]

Possible featured picture delisting

I've listed an image you uploaded at Wikipedia:Featured picture candidates/delist/First Gold Beam-Beam Collision Events at RHIC. Your input would be welcome. Thanks. Chick Bowen 02:49, 19 September 2010 (UTC)[reply]

File source problem with File:The zeta fusion device.jpg

Thank you for uploading File:The zeta fusion device.jpg. I noticed that the file's description page currently doesn't specify who created the content, so the copyright status is unclear. If you did not create this file yourself, you will need to specify the owner of the copyright. If you obtained it from a website, please add a link to the website from which it was taken, together with a brief restatement of that website's terms of use of its content. However, if the copyright holder is a party unaffiliated from the website's publisher, that copyright should also be acknowledged.

If you have uploaded other files, consider verifying that you have specified sources for those files as well. You can find a list of files you have created in your upload log. Unsourced and untagged images may be deleted one week after they have been tagged per Wikipedia's criteria for speedy deletion, F4. If the image is copyrighted and non-free, the image will be deleted 48 hours after 20:45, 5 December 2010 (UTC) per speedy deletion criterion F7. If you have any questions or are in need of assistance please ask them at the Media copyright questions page. Thank you. J Milburn (talk) 20:45, 5 December 2010 (UTC)[reply]

Possibly unfree File:The zeta fusion device.jpg

A file that you uploaded or altered, File:The zeta fusion device.jpg, has been listed at Wikipedia:Possibly unfree files because its copyright status is unclear or disputed. If the file's copyright status cannot be verified, it may be deleted. You may find more information on the file description page. You are welcome to add comments to its entry at the discussion if you are interested in it not being deleted. Thank you. Calliopejen1 (talk) 15:40, 6 December 2010 (UTC) —Preceding unsigned comment added by 217.225.226.1 (talk) 13:08, 23 February 2011 (UTC)[reply]

Diffraction garting

Dear Sir, when I saw the Wikipedia Page http://en.wikipedia.org/wiki/Diffraction_grating and the large scale diffraction grating there, I wondered where you could buy that. I am looking for a very large grating for an installation in a German Science Center. If you had any hint, which manufactorers there are, that woul help me very much! Greetings, Thomas —Preceding unsigned comment added by 217.225.226.1 (talk) 13:17, 23 February 2011 (UTC)[reply]

The standard sources of diffraction gratings is Horiba http://www.horiba.com/us/en/scientific/products/diffraction-gratings/ (warning, they change names about every two years, also traded under the names of ISA, Jobin Yvon, etc.). Your best bet might be Ebay, either as a grating or in a spectrometer. — Preceding unsigned comment added by Eli Rabett (talk • contribs) 12:48, 3 June 2012 (UTC)[reply]

Orphaned non-free image File:Molotov cocktease.jpg

⚠

Thanks for uploading File:Molotov cocktease.jpg. The image description page currently specifies that the image is non-free and may only be used on Wikipedia under a claim of fair use. However, the image is currently orphaned, meaning that it is not used in any articles on Wikipedia. If the image was previously in an article, please go to the article and see why it was removed. You may add it back if you think that that will be useful. However, please note that images for which a replacement could be created are not acceptable for use on Wikipedia (see our policy for non-free media).

If you have uploaded other unlicensed media, please check whether they're used in any articles or not. You can find a list of "file" pages you have edited by clicking on the "my contributions" link (it is located at the very top of any Wikipedia page when you are logged in), and then selecting "File" from the dropdown box. Note that any non-free images not used in any articles will be deleted after seven days, as described in the criteria for speedy deletion. Thank you. Neelix (talk) 19:38, 9 April 2011 (UTC)[reply]

Proposed Image Deletion

A deletion discussion has just been created at Category talk:Unclassified Chemical Structures, which may involve one or more orphaned chemical structures, that has you user name in the upload history. Please feel free to add your comments. Ronhjones ^(Talk) 22:51, 10 June 2011 (UTC)[reply]

File:Egret all sky gamma ray map from CGRO spacecraft.gif listed for deletion

A file that you uploaded or altered, File:Egret all sky gamma ray map from CGRO spacecraft.gif, has been listed at Wikipedia:Files for deletion. Please see the discussion to see why this is (you may have to search for the title of the image to find its entry), if you are interested in it not being deleted. Thank you. Bulwersator (talk) 09:04, 21 December 2011 (UTC)[reply]

File:Cassini orbiter downlink of huygens probe timeline.jpg listed for deletion

A file that you uploaded or altered, File:Cassini orbiter downlink of huygens probe timeline.jpg, has been listed at Wikipedia:Files for deletion. Please see the discussion to see why this is (you may have to search for the title of the image to find its entry), if you are interested in it not being deleted. Thank you. Bulwersator (talk) 09:05, 4 January 2012 (UTC)[reply]

Non-free rationale for File:Sonoluminescence.jpg

Thanks for uploading or contributing to File:Sonoluminescence.jpg. I notice the file page specifies that the file is being used under non-free content criteria, but there is not a suitable explanation or rationale as to why each specific use in Wikipedia is acceptable. Please go to the file description page, and edit it to include a non-free rationale.

If you have uploaded other non-free media, consider checking that you have specified the non-free rationale on those pages too. You can find a list of 'file' pages you have edited by clicking on the "my contributions" link (it is located at the very top of any Wikipedia page when you are logged in), and then selecting "File" from the dropdown box. Note that any non-free media lacking such an explanation will be deleted one week after they have been tagged, as described on criteria for speedy deletion. If the file is already gone, you can still make a request for undeletion and ask for a chance to fix the problem. If you have any questions, please ask them at the Media copyright questions page. Thank you. Sfan00 IMG (talk) 23:29, 2 August 2012 (UTC)[reply]

Possibly unfree File:Midnight bowling.jpg

A file that you uploaded or altered, File:Midnight bowling.jpg, has been listed at Wikipedia:Possibly unfree files because its copyright status is unclear or disputed. If the file's copyright status cannot be verified, it may be deleted. You may find more information on the file description page. You are welcome to add comments to its entry at the discussion if you are interested in it not being deleted. Thank you. —Bkell (talk) 21:12, 26 August 2012 (UTC)[reply]

File:Glowing tobacco plant.jpg listed for deletion on Wikimedia Commons

An image or media file you uploaded or altered, Glowing tobacco plant.jpg, has been listed at Commons Deletion requests.

You can read and participate in the deletion discussion if you are interested or do not wish the file to be deleted. Thank you. Magog the Ogre (t • c) 18:52, 17 September 2012 (UTC)[reply]

File copyright problem with File:Moons_shodow_in_muons.gif

Thank you for uploading File:Moons_shodow_in_muons.gif. However, it currently is missing information on its copyright and licensing status. Wikipedia takes copyright very seriously. It may be deleted soon, unless we can verify that it has an acceptable license status and a verifiable source. Please add this information by editing the image description page. You may refer to the image use policy to learn what files you can or cannot upload on Wikipedia. The page on copyright tags may help you to find the correct tag to use for your file. If the file is already gone, you can still make a request for undeletion and ask for a chance to fix the problem.

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If you have any questions, please feel free to ask them at the media copyright questions page. Thanks again for your cooperation. Sreejith K (talk) 10:47, 6 November 2012 (UTC)[reply]

File:Mystery banchan.jpg listed for deletion

A file that you uploaded or altered, File:Mystery banchan.jpg, has been listed at Wikipedia:Files for deletion. Please see the discussion to see why this is (you may have to search for the title of the image to find its entry), if you are interested in it not being deleted. Thank you. --Addi hockey 10 ^e-mail 03:44, 10 May 2013 (UTC)[reply]

Please clarify my doubt

Dear sir

       My name is vishnu.In wikipedia i read that flurecent tubes are producing ultraviolet radiations in 100nm-200nm range and then converting to white light.Somewere else i read in as longwavelenght UV rays are produced.which one is correct sir.

if it is 100-200nm i am feeling afraid that wont it cause skin cancer. — Preceding unsigned comment added by 117.239.154.114 (talk) 10:11, 24 July 2013 (UTC)[reply]

File:Atmospheric microwave transmittance at mauna kea(simulated).gif listed for deletion

A file that you uploaded or altered, File:Atmospheric microwave transmittance at mauna kea(simulated).gif, has been listed at Wikipedia:Files for deletion. Please see the discussion to see why it has been listed (you may have to search for the title of the image to find its entry). Feel free to add your opinion on the matter below the nomination. Thank you. Sfan00 IMG (talk) 20:34, 2 August 2013 (UTC)[reply]

File:IFE and MFE parameter space.jpg missing description details

Dear uploader: The media file you uploaded as:

File:IFE and MFE parameter space.jpg

is missing a description and/or other details on its image description page. If possible, please add this information. This will help other editors make better use of the image, and it will be more informative to readers.

If you have any questions, please see Help:Image page. Thank you. Message delivered by Theo's Little Bot (opt-out) 16:02, 6 August 2013 (UTC)[reply]

File:Laser hohlraum target energy coupling.jpg listed for deletion

A file that you uploaded or altered, File:Laser hohlraum target energy coupling.jpg, has been listed at Wikipedia:Files for deletion. Please see the discussion to see why it has been listed (you may have to search for the title of the image to find its entry). Feel free to add your opinion on the matter below the nomination. Thank you. Sfan00 IMG (talk) 12:35, 1 November 2013 (UTC)[reply]

Fluorescent spectral diagram

Hi Deglr6328,

I was recently playing with a diffraction grating and decided to take some spectral photos of various lights. The one I took of a cool-white, fluorescent lamp turned out really good. It shows the different peaks very nicely. Upon seeing your diagram of the peaks, I decided to cut a small ribbon from my photo and paste it onto yours, to see how well it lines up with your diagram. Nearly every peak lines up almost perfectly! I thought it looked really good, combining the two, helping the reader to visualize what color the peaks actually are. Of course, because it is your diagram, I wouldn't dare change it without consulting you first. (Not to mention I had to convert it to PNG, because I have no way to edit SVG files.) I do think it adds a nice splash of color to the picture.

If you'd like to see my photo, it is on the Fluorescent lamp page, just above your diagram. If you'd like I could email you a copy of the modification I made. The only difference is that some of the red peaks are in slightly different locations. Zaereth (talk) 21:16, 3 March 2015 (UTC)[reply]

Dear en:user:Deglr6328 I would like to get a copy of the color file used to generate the graph shown at https://en.wikipedia.org/wiki/File:Fluorescent_lighting_spectrum_peaks_labelled.png I have played around and got a graph that is very similar but would like to have the color version (.jpg or .bmp) of the graph. VR sunwukong(at) hughes.net — Preceding unsigned comment added by 67.44.160.136 (talk) 00:12, 12 August 2015 (UTC)[reply]

Hi. I've been watching this page since my question above, and I believe Deglr6328 is no longer active on Wikipedia. I'm not sure what you are looking for, myself. I used this exact graph in my comment above, where I added a little strip of color beneath the graph line, showing the varying intensity of each peak. I copy/pasted this from my photo, here, and the peaks match perfectly, from number 2 to number 16. I'm not sure I can publish it on commons without Deglr's permission. Zaereth (talk) 22:31, 12 August 2015 (UTC)[reply]

ArbCom elections are now open!

Hi,
You appear to be eligible to vote in the current Arbitration Committee election. The Arbitration Committee is the panel of editors responsible for conducting the Wikipedia arbitration process. It has the authority to enact binding solutions for disputes between editors, primarily related to serious behavioural issues that the community has been unable to resolve. This includes the ability to impose site bans, topic bans, editing restrictions, and other measures needed to maintain our editing environment. The arbitration policy describes the Committee's roles and responsibilities in greater detail. If you wish to participate, you are welcome to review the candidates' statements and submit your choices on the voting page. For the Election committee, MediaWiki message delivery (talk) 22:17, 30 November 2015 (UTC)[reply]

File:Atmospheric microwave transmittance at mauna kea(simulated).gif listed for discussion

A file that you uploaded or altered, File:Atmospheric microwave transmittance at mauna kea(simulated).gif, has been listed at Wikipedia:Files for discussion. Please see the discussion to see why it has been listed (you may have to search for the title of the image to find its entry). Feel free to add your opinion on the matter below the nomination.

ATTENTION: This is an automated, bot-generated message. This bot DID NOT nominate any file(s) for deletion; please refer to the page history of each individual file for details. Thanks, FastilyBot (talk) 23:50, 6 September 2016 (UTC)[reply]

File:Henry Moseley.jpg

Do you recall the source of this image?ShakespeareFan00 (talk) 10:06, 24 October 2018 (UTC)[reply]

File:Grand prismatic spring.jpg

An image you nominated File:Grand prismatic spring.jpg has been nominated for delisting because it has been replaced with a higher resolution image. You can see the nomination at Wikipedia:Featured picture candidates/delist/File:Grand prismatic spring.jpg. Bammesk (talk) 03:03, 29 December 2022 (UTC)[reply]

File:NOVA target chamber maintenance.jpg listed for discussion

A file that you uploaded or altered, File:NOVA target chamber maintenance.jpg, has been listed at Wikipedia:Files for discussion. Please see the discussion to see why it has been listed (you may have to search for the title of the image to find its entry). Feel free to add your opinion on the matter below the nomination. Thank you. Whpq (talk) 03:24, 6 January 2023 (UTC)[reply]

File:Bunsen burner.jpg

Do you remember real source of this picture: File:Bunsen burner.jpg. It seem to be uploaded by you around 2005 and I transferred this to Wikimedia Commons. It was marked as the file produced by NASA therefore PD, but now we have to prove it somehow. I couldn't find this picture trough NASA Images search. Polimerek (talk) 09:43, 4 April 2024 (UTC)[reply]