User talk:Dnn87

Image source problem with Image:Cs single cryst..JPG
Thanks for uploading Image:Cs single cryst..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.

As well as adding the source, please add a proper copyright licensing tag if the file doesn't have one already. If you created/took the picture, audio, or video then the GFDL-self tag can be used to release it under the GFDL. If you believe the media meets the criteria at Non-free content, use a tag such as or one of the other tags listed at Image copyright tags. See Image copyright tags for the full list of copyright tags that you can use.

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 Fair use) then the image will be deleted 48 hours after 23:16, 10 December 2007 (UTC). If you have any questions please ask them at the Media copyright questions page. Thank you. Chetblong TalkSign 23:16, 10 December 2007 (UTC)

Hi there
Welcome!

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You seem to be having some difficulties with images, as I notice from Caesium. Do you need any help? Perhaps you can read Images for a start. --Rifleman 82 (talk) 16:51, 11 December 2007 (UTC)

Hello.

I think I know how to do it now.

Thanks - Hope my images of the alkali metals are useful(?) :)

Regards Dennis s.k

Hi Dennis

Thanks for your contributions, they are pretty! Two points to note: limited-license images such as for non-profit, educational only are discouraged on wikipedia. Unless you are selling these photos, perhaps you can donate them to Wikipedia under a free license? Secondly, the placement of the images in the elements box departs from the usual format. I think it will be rearranged eventually. But don't worry, that doesn't mean your contributions are not valued. Far from it, in fact.

I can't stay to discuss with you, but some of my friends might pop by to see how you're doing, and try to help you if you need. Cheers! --Rifleman 82 (talk) 14:29, 12 December 2007 (UTC)

Welcome (another one)
Hi Dennis, I see you are active on chemicals pages (well, the alkali metals). Thanks for that, though it may be that you need some help left and right. I left you a welcome message at the top here, it contains many links to documents where style etc. is discussed.

Just to let you know, if you decide to stay, we tend to work here in wikiprojects, where members with overlapping interests work together. See e.g. WikiProject Elements, WikiProject Chemistry, and WikiProject Chemicals. If you have questions, it is a good place to start to contact a couple of editors at the same time. You are of course also welcome to bug me on my talkpage (though I am going on holiday soon, but well, I will still be around). Hope to see you around! --Dirk Beetstra T C 14:32, 12 December 2007 (UTC)

License tagging for Image:Rubidium5.jpg
Thanks for uploading Image:Rubidium5.jpg. You don't seem to have indicated the license status of the image. Wikipedia uses a set of image copyright tags to indicate this information; to add a tag to the image, select the appropriate tag from this list, click on this link, then click "Edit this page" and add the tag to the image's description. If there doesn't seem to be a suitable tag, the image is probably not appropriate for use on Wikipedia.

For help in choosing the correct tag, or for any other questions, leave a message on Media copyright questions. Thank you for your cooperation. --ImageTaggingBot (talk) 13:06, 20 December 2007 (UTC)

Duplicate images uploaded
Thanks for uploading Image:Rb66.jpg. A machine-controlled robot account noticed that you also uploaded the same image under the name Image:Rubidium5.jpg. The copy called Image:Rubidium5.jpg has been marked for speedy deletion since it is redundant. If this sounds okay to you, there is no need for you to take any action.

This is an automated message- you have not upset or annoyed anyone, and you do not need to respond. In the future, you may save yourself some confusion if you supply a meaningful file name and refer to 'my contributions' to remind yourself exactly which name you chose (file names are case sensitive, including the extension) so that you won't lose track of your uploads. For tips on good file naming, see Wikipedia's image use policy. If you have any questions about this notice, or feel that the deletion is inappropriate, please contact User:Staecker, who operates the robot account. Staeckerbot (talk) 14:45, 20 December 2007 (UTC)

Wow
How do you manage to get hold of all of those elements, it must cost a fortune Curttrfc (talk) 22:10, 25 January 2009 (UTC)

Hey Dennis! I think all of these pictures are amazing, but I want to ask, may I please use the Cesium under argon for an 8th grade science project? thanks! S.a.e.g. (talk) 16:51, 29 March 2009 (UTC)

Element collecting
Howdy. I've been looking into cross-namespace links recently, and noted that your wikipedia user page (User:Dnn87) was linked from rhe article "Element collecting". Links from articles to user pages cause a few problems; firstly they don't work on mirrors (copies of wikipedia), and secondly they can unexpectedly expose users to the "plumbing" that we editors use while working on wikipedia.

To avoid this problem, I've changed the link to an 'external link' - the sort that would normally be used to link to material on a website other than wikipedia.

While this fixes the problem with Element collecting, it does bring to light that you are in essence using the wikipedia system as a free host for your picture collection. Wikipedia is not a free web host. Don't get me wrong - I love the pictures and can see the images are potentially of great use in illustrating any number of relevant articles if released under an appropriate license.

Have you considered placing them in wikimedia commons, perhaps? - TB (talk) 19:04, 30 June 2009 (UTC)

Element collecting
Hello, I noticed you have a sizable collection of elements and was wondering if I started doing the same, what are some points of advice you might have? It seems pretty obvious that it wouldn't be good to just leave raw potassium something lying around so how should I keep them safe? Thanks for your time Phil.e. [ Talk ] 04:33, 17 November 2009 (UTC)

http://en.wikipedia.org/wiki/File:Cesium133Cesium.JPG
Hi,

the description to this file is "Massive 1361,1 gram cesium metal ampule made by the former Soviet union. Sample from the Dennis s.k collection." I doubt this since the label and seal on it state that it is produced by the Laboratorium Fresenius in Wiesbaden which is in Western Germany. So I don't see why it should've been made by the former Soviet Union. — Preceding unsigned comment added by 77.21.176.47 (talk) 22:49, 30 October 2011 (UTC)

Possibly unfree File:Rbmetal.JPG
A file that you uploaded or altered, File:Rbmetal.JPG, has been listed at 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 if you are interested in it not being deleted. Thank you. Stefan2 (talk) 21:30, 26 February 2012 (UTC)

A goat for you!
These elements are really cool!

TheBooker66 (talk) 14:03, 29 January 2023 (UTC) 