Looking for a challenging and stimulating activity? Try solving a pattern-based puzzle posted on Instagram by Optical Illusions. The puzzle presents three patterns and asks you to predict the next ...

These sheets contain drawings and pattern pieces attached to sheets that relate to circular shapes. The patterns are cut from paper and metal. The models include: 1. oblique circular cone, OCCO-PL - ...

This video shows the process of drawing a geometric optical illusion using repeating black shapes arranged in a circular ...