PEEPER on Instagram: "Follow us (@PEEPER) for more! 👀 In this optical illusion, known as induced motion or vection, a stationary woman on a median appears to glide forward like on a conveyor belt due to marathon runners streaming past her in the opposite direction on both sides. The brain relies on relative motion cues: the background (runners) moving backward tricks it into perceiving the foreground (woman) as advancing. This exploits how our visual system prioritizes contextual movement over

Invention on Instagram: "The shepherds leap technique from the Canary Islands is a remarkable example of human adaptation to rugged volcanic landscapes. Known locally as salto del pastor, it was developed by herders who needed to cross steep slopes, ravines, and uneven ground while managing their livestock. The core tool is a long wooden pole fitted with a metal tip on the end, allowing the user to anchor the pole securely into the earth and guide their movement downward. The technique requires