User talk:WalterSpeaksma

August 2020
Hello, I'm Materialscientist. I wanted to let you know that I reverted one of your recent contributions —specifically this edit to Vapor–liquid equilibrium—because it did not appear constructive. If you would like to experiment, please use the sandbox. If you have any questions, you can ask for assistance at the Help desk. Thanks. Materialscientist (talk) 14:38, 27 August 2020 (UTC)

Unspecified source/license for File:C--Users-WSPIE-Desktop-Walter-PicKovatsDifference.jpg
Thanks for uploading File:C--Users-WSPIE-Desktop-Walter-PicKovatsDifference.jpg. The image has been identified as not specifying the copyright status of the image, which is required by Wikipedia's policy on images. Even if you created the image yourself, you still need to release it so Wikipedia can use it. If you don't indicate the copyright status of the image on the image's description page, using an appropriate copyright tag, it may be deleted some time after the next seven days. If you made this image yourself, you can use copyright tags like (to release all rights),  (to require that you be credited), or any tag here - just go to the image, click edit, and add one of those. If you have uploaded other images, please verify that you have provided copyright information for them as well.

For more information on using images, see the following pages:
 * Image use policy
 * File copyright tags

This is an automated notice by MifterBot. For assistance on the image use policy, see Media copyright questions. NOTE: Once you correct this, please remove the tag from the image's page. --MifterBot (Talk • Contribs • Owner) 21:45, 21 May 2021 (UTC)

Unspecified source/license for File:C--Users-WSPIE-Desktop-Walter-PicKovatsDiifference.jpg
Thanks for uploading File:C--Users-WSPIE-Desktop-Walter-PicKovatsDiifference.jpg. The image has been identified as not specifying the copyright status of the image, which is required by Wikipedia's policy on images. Even if you created the image yourself, you still need to release it so Wikipedia can use it. If you don't indicate the copyright status of the image on the image's description page, using an appropriate copyright tag, it may be deleted some time after the next seven days. If you made this image yourself, you can use copyright tags like (to release all rights),  (to require that you be credited), or any tag here - just go to the image, click edit, and add one of those. If you have uploaded other images, please verify that you have provided copyright information for them as well.

For more information on using images, see the following pages:
 * Image use policy
 * File copyright tags

This is an automated notice by MifterBot. For assistance on the image use policy, see Media copyright questions. NOTE: Once you correct this, please remove the tag from the image's page. --MifterBot (Talk • Contribs • Owner) 21:45, 21 May 2021 (UTC)

File source problem with File:C--Users-WSPIE-Desktop-Walter-PicKovatsDifference.jpg
Thank you for uploading File:C--Users-WSPIE-Desktop-Walter-PicKovatsDifference.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 page from which it was taken, together with a brief restatement of the website's terms of use of its content. If the original copyright holder is a party unaffiliated with the website, that author should also be credited. Please add this information by editing the image description page.

If the necessary information is not added within the next seven days, the image will be deleted. If the file is already gone, you can still make a request for undeletion and ask for a chance to fix the problem.

Please refer to the image use policy to learn what images you can or cannot upload on Wikipedia. Please also check any other files you have uploaded to make sure they are correctly tagged. Here is a [ list of your uploads]. If you have any questions or are in need of assistance please ask them at the Media copyright questions page. Thank you. Salavat (talk) 07:32, 22 May 2021 (UTC)

Original research?
At the Teahouse (a couple of months ago), you said "I created a jpeg file in Excel to explain the difference between Kovats index equations". That might be considered Original Research WP:OR. You might want to check with an experienced editor (maybe again at the Teahouse). I just noticed that since I sometimes look at old Teahouse archives for fun. Feel free to ignore this if the issue is no longer relevant! 73.127.147.187 (talk) 07:01, 12 July 2021 (UTC)