Spinning Disc illusion

Don't stare too long or you get dizzy..Just answer which disc is turning faster, A or B? My guess goes on B! This works in a same way “Rotating Snakes” and “Rotating Snakes no.2″ Illusions work.Related articlesOptical Illusion of the Week: "Snakes, Ladybugs and Flowers" (psychworld.com)Studying how snakes got legless (bbc.co.uk)Finally Joel saw a snake! - Orlando, FL (travelpod.com)Good reasons