Wikipedia:Featured picture candidates/Total internal reflection and Snell's window in the surface of a swimming pool

Total internal reflection and Snell's window in the surface of a swimming pool

Voting period is over. Please don't add any new votes. Voting period ends on 2 Mar 2020 at 02:25:03 (UTC)

Original – Total internal reflection by the water's surface at the shallow end of a swimming pool. The broad bubble-like apparition between the swimmer and her reflection (above) is a disturbance of the reflecting surface, which also distorts the image of the ladder (right). Through "Snell's window" (top), we see some of the scene above the water, including the handles of the ladder (right of center). The color-fringing of the light (top) and of the edge of Snell's window is due to variation of the refractive index, hence the critical angle, with wavelength.

Reason: I can't comment on its merits as a sports photo. But as a scientific educational illustration covering a main topic and several subtopics, whether by accident or by design, it's a masterpiece.
Articles in which this image appears: Total internal reflection
FP category for this image: Wikipedia:Featured pictures/Sciences/Others
Creator: Jean-Marc Kuffer

Support as nominator – Gavin R Putland (talk) 02:25, 21 February 2020 (UTC)[reply]
Support – at first the lack of sharpness was off-putting, but it's an underwater photo, so it can only be so sharp. What got me to fall for this is the very top of the photo where the total reflection (the mirror effect) goes away and you can see the other side, and there is someone standing up there. This just perfectly demonstrates what the article tries to say. Bammesk (talk) 04:32, 21 February 2020 (UTC)[reply]
Support - excellent EV, I'd expect to see something like this in a physics textbook. MER-C 14:07, 22 February 2020 (UTC)[reply]
Support – I wish there was more room at Snell's window to add this image. --- C&C (Coffeeandcrumbs) 16:12, 22 February 2020 (UTC)[reply]
Support Geoffroi 17:15, 23 February 2020 (UTC)[reply]

Promoted File:Internal reflection, Anna.jpg --Armbrust ^{The Homunculus} 09:05, 2 March 2020 (UTC)[reply]