If you love an image (whether it's yours or someone else's) and want to make sure others get a chance to see it, you can “feature” it by choosing the “Spotlight” button.
When an image is Spotlighted, it receives enhanced visibility in premium spots throughout the site. Spotlighted images are rotated through these higher-visibility positions to ensure the best opportunity for the images to be seen by JPG users.
If you see a great photo that would make a perfect entry for one of our Shoot Out photo contests but it was uploaded by another user, now you can enter that photo in the contest and, if it wins, you get to share in the contest winnings.
Like a photo editor, if you've got an eye for great work, find it and submit it to a contest. If it wins, since you staked the entry fee, you'll take home part of the prize (the rest, of course, goes to the member who shot the image).
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Photo license: © All rights reserved
Caustics (from the Greek kaustikos, kaiein, ‘to burn’) are geometrical entities formed by the singular concentration of curves, which model approximately the behavior of light rays focused by lenses or curved mirrors, leading to very bright regions when they encounter a surface. The light patterns at the bottom of swimming pools are examples of caustics, produced by the refraction on the wavy surface of water. In this computer image are discovered light caustics produced by two consecutive wavy surfaces, as if light was entering a second sea under the sea.
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