SmithsonianMag has a story on the science, specifically physics, behind the strange beauty of whisky residue:
Creating the images required a bit of Macgyvering. On their own, the grayish sediment lines are a bit underwhelming compared to the amber liquid that creates them, so Button had to experiment with different glasses and lighting systems. Using flashlights and desk lamps, Button highlights the patterns with different hues. “It creates the illusion of landscape, terrestrial or extraterrestrial,” says Button. To him, many of the images appear celestial, perhaps something that a satellite camera might snap high above Earth. Other images could easily be frigid polar vistas or petri dishes of bacterial colonies.
Every Tuesday is Art Tuesday here at Adafruit! Today we celebrate artists and makers from around the world who are designing innovative and creative works using technology, science, electronics and more. You can start your own career as an artist today with Adafruit’s conductive paints, art-related electronics kits, LEDs, wearables, 3D printers and more! Make your most imaginative designs come to life with our helpful tutorials from the Adafruit Learning System. And don’t forget to check in every Art Tuesday for more artistic inspiration here on the Adafruit Blog!