KarlGaff

Welcome to Wikimedia Commons, KarlGaff!

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-- Wikimedia Commons Welcome (talk) 17:02, 2 December 2021 (UTC)

FP Promotion

★ This image has been promoted to Featured picture! ★ The image File:Non-Biting Diptera Midge Larva.jpg, that you uploaded is now assessed as one of the finest pictures on Wikimedia Commons, the nomination is available at Commons:Featured picture candidates/File:Non-Biting Diptera Midge Larva.jpg. Thank you for your contribution. If you would like to nominate, please do so at this nomination page.

/FPCBot (talk) 21:01, 20 January 2022 (UTC)

Hi KarlGaff! Just wanted to reach out to invite you to particpate in Wiki Science again this year! We highly valued your previous contributions. You can upload here to be in with the chance of winnging prizes and global recognition! Cailínréalta (talk) 15:12, 15 November 2023 (UTC)

FP Promotion

★ This image has been promoted to Featured picture! ★ The image File:Canadian Pond Weed Leaf Tip.jpg, that you uploaded is now assessed as one of the finest pictures on Wikimedia Commons, the nomination is available at Commons:Featured picture candidates/File:Canadian Pond Weed Leaf Tip.jpg. Thank you for your contribution. If you would like to nominate, please do so at this nomination page.

/FPCBot (talk) 05:00, 24 January 2022 (UTC)

Quality Image Promotion

Your image has been reviewed and promoted Congratulations! Caesium Chloride.jpg, which was produced by you, was reviewed and has now been promoted to Quality Image status. If you would like to nominate another image, please do so at Quality images candidates. We also invite you to take part in the categorization of recently promoted quality images. Comments  Support Good quality. --Velvet 07:59, 24 March 2022 (UTC)

--QICbot (talk) 05:20, 27 March 2022 (UTC)

Quality Image Promotion

Your image has been reviewed and promoted Congratulations! Lipid Islands on Soap Bubble.jpg, which was produced by you, was reviewed and has now been promoted to Quality Image status. If you would like to nominate another image, please do so at Quality images candidates. We also invite you to take part in the categorization of recently promoted quality images. Comments  Support Good quality. --GRDN711 18:23, 20 April 2022 (UTC)

--QICbot (talk) 05:21, 23 April 2022 (UTC)

FP Promotion

★ This image has been promoted to Featured picture! ★ The image File:Lipid Islands on Soap Bubble.jpg, that you uploaded is now assessed as one of the finest pictures on Wikimedia Commons, the nomination is available at Commons:Featured picture candidates/File:Lipid Islands on Soap Bubble.jpg. Thank you for your contribution. If you would like to nominate, please do so at this nomination page.

/FPCBot (talk) 05:00, 26 April 2022 (UTC)

Quality Image Promotion

Your image has been reviewed and promoted Congratulations! Shear Flow Vortices.jpg, which was produced by you, was reviewed and has now been promoted to Quality Image status. If you would like to nominate another image, please do so at Quality images candidates. We also invite you to take part in the categorization of recently promoted quality images. Comments Good quality. --D-Kuru 09:59, 27 April 2022 (UTC)

--QICbot (talk) 05:24, 30 April 2022 (UTC)

FP Promotion

★ This image has been promoted to Featured picture! ★ The image File:Caesium Chloride.jpg, that you uploaded is now assessed as one of the finest pictures on Wikimedia Commons, the nomination is available at Commons:Featured picture candidates/File:Caesium Chloride.jpg. Thank you for your contribution. If you would like to nominate, please do so at this nomination page.

/FPCBot (talk) 13:00, 4 August 2022 (UTC)

POTD Notification

⭐ The file you uploaded, is on the main page! ⭐ The file File:Lipid Islands on Soap Bubble.jpg, that you uploaded, is on the main page today. Thank you for your contributions to this project.

//EatchaBot (talk) 00:00, 21 August 2022 (UTC)

FP Promotion

★ This image has been promoted to Featured picture! ★ The image File:Shear Flow Vortices.jpg, that you uploaded is now assessed as one of the finest pictures on Wikimedia Commons, the nomination is available at Commons:Featured picture candidates/File:Shear Flow Vortices.jpg. Thank you for your contribution. If you would like to nominate, please do so at this nomination page.

/FPCBot (talk) 13:01, 13 October 2022 (UTC)

Inquiry

Hi KarlGaff, can you elaborate on the description of This image you uploaded. It is a nice image and thank you for uploading it. The file description says: magnification x100. Is this a microscopic photo? What is being photographed? Is the fluid streaming (moving) on the top half of the image as well? If yes, why is it not interacting with the small circular boundary on the top half? Normally, the top of each vortix moves in the same direction as the stream itself, which according to the file description is from left to right. Therefore these vortices should be clockwise. But according to how they look as well as the file description, these vortices are counterclockwise. Is there an explanation for that? I am trying to use this image in an English Wikipedia article, Here, and your answers can clear things up. Thank you in advance. Bammesk (talk) 23:34, 26 October 2022 (UTC)

Hi @Bammesk

Yes this is photograph captured through a microscope configured for DIC. The sample constitutes a viscous agent and a volatile agent, namely glycerol and ethanol. The boundary on the lower half is an air cavity. Above this we have the viscous medium. Ethanol is injected from the right-hand side and streams along the boundary. The air bubble located above the stream embedded in the viscous medium not yet interacts with the flow. Yes you are right, my mistake, the stream is moving from right to left. KarlGaff (talk) 07:55, 27 October 2022 (UTC)

WSC2021 winner

Your image of the diptera larva under birefringent light is the international winner in the category "microscopy" of Wiki Science Competition 2021. This has been reported on social media, see: Facebook, Instagram, Twitter and LinkedIn.

We are preparing the on-line event when the motivation will be finalized and the prize given. The award ceremony is taking place on Sunday, 18th, from 17:00 to 18:00 Rome time. Please contact me as soon as possible, I need your IBAN information, and also a short description of you and your story. Alexmar983 (talk) 21:42, 9 December 2022 (UTC)

Larva polarized light question

Hello, I just saw your photo of the larva, phenomenal work!

I wanted to ask, why do you use polarized light? Perhaps relatedly, how should I interpret the colors? Do the colors correspond to different orientations of polarized light?

Thanks! Neuroxic (talk) 23:05, 23 April 2023 (UTC)

Thank you. Polarised light makes the invisible, visible. The glowing colours arise from the highly ordered and aligned arrangement of myosin fiber bundles that exhibit birefringence within the muscle tissue.

When polarized light passes through the muscle tissue, it interacts with the proteins and other structures within the fibers. This interaction causes the light to split into different colours based on the orientation of the fibers and the structure of the proteins.

The colours seen under polarized light can provides information about the organization and structure of the muscle tissue.

You can see more of my work at artofsciencephotography.com 89.100.136.82 06:42, 24 April 2023 (UTC)

Wiki Science Competition 2023

Logo for Wiki Science Competition

Dear uploader of European Science Photo Competition 2015 and Wiki Science Competition 2017, Wiki Science Competition 2019 and Wiki Science Competition 2021, we would like to remind you that Wiki Science Competition 2023 has started in almost all the countries.

If you want to take part in WSC2023, please consult this page. Only some national categories are associated to competitions with local prizes.

If you are an expert user, we remind you that images uploaded within the deadline can be included in any case in their national category even if not uploaded with the main interface.

If you already took part in a country that has completed its upload phase (such as Russia), please consider improving the description in English of your files (click on the edit button), since such description is what the international jury will use to evaluate them. World finalists will be finalized after March 2024.

Sorry for bothering you and have a nice wiki.

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Alexmar983 (promotion team and academic committee) using MediaWiki message delivery--18:24, 27 November 2023 (UTC)

Congratulations!

Logo for Wiki Science Competition

Congratulations! Your photo Iron Sulphate Nucleation Point has won 2nd place and Bryophyte Leaf Cells has won 3rd place in the Microscopy category of Wiki Science Competition Ireland 2023! See all the winners here. Please contact us at info [at] wikimedia.ie regarding your prize, thanks! S.Fitzpatrick, Projects and Communications Manager, Wikimedia Community Ireland. Cailínréalta (talk) 14:37, 27 February 2024 (UTC)

FP Promotion

★ This image has been promoted to Featured picture! ★ The image File:Bryophyte Leaf Cells.jpg, that you uploaded is now assessed as one of the finest pictures on Wikimedia Commons, the nomination is available at Commons:Featured picture candidates/File:Bryophyte Leaf Cells.jpg. Thank you for your contribution. If you would like to nominate, please do so at this nomination page.

/FPCBot (talk) 05:02, 10 April 2024 (UTC)