It’s charged with moving a small magnet to drag a ball bearing through the sand to draw patterns under the command of G-code generated with the Sandify tool.

Another theory suggests that it is the work of sand termites or ants. Referring to the polka-dot patterns near the Grand ...

As a plane soars over the high desert of southern Peru, the dull pale sameness of the rocks and sand organize and change ... lines take shape to form simple geometric designs: trapezoids, straight ...