In psychology and physics, the "Barber Pole Illusion" is a famous visual phenomenon. When a cylinder with diagonal stripes rotates horizontally, the brain perceives the stripes as moving rather than around the cylinder. This happens because the brain prioritizes the motion along the vertical edges of the "aperture" (the pole's frame). A moving-barber-pole illusion | JOV - Journal of Vision
In the Middle Ages, barbers were actually . They didn't just cut hair; they performed tooth extractions, minor surgeries, and most notably, bloodletting . The Red Stripe: Represented the blood from the procedure. barber's pole
Represented the clean bandages used to stem the bleeding. In psychology and physics, the "Barber Pole Illusion"