In the windmills of your mind
Guess what this is, or suggest a title :-)
Best viewed Large, On Black.
UPDATE (30/11/07), the answer:
There is obviously glass involved, as all of you correctly guessed, and Adrian (DuNnO - The Kit Lens Baby) got really close, being the first to talk about a torchlight and a bulb! So, 24 hours after I posted this photo, I'm revealing to you what this really is:
It's a little shot glass (for raki), half-full of water (we had drank all the raki by then...), set upon a led-torchlight, shot directly from above (35mm lens, ISO:100, f/16, 1/50sec). The room was dim-lit, so no ambient light was recorded with these settings, just the torchlight's leds directly below the glass.
As for the title, I loved the one suggested by Eve (Izatia), as this photo is playing mind tricks on me, giving me the impression of rotation, where there is actually none, as Theophilos (teo58) observed, too.
Thank you all :-)