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Psychologist Richard Wiseman posted this Ponzo illusion, telling us all three cars are of the same size. Ponzo illusion, first demonstrated by Italian psychologist Mario Ponzo in 1911., suggests that the way we judge an object’s size is highly dependent on its background. Just browse this site’s #Relative Sizes category and you’ll see many examples […]

More often than not, I receive emails from fans all over the world. While most of them are complimentary, thanking me for maintaining this site and expressing gratuity for regular content, I also receive a complaint here and then (mostly addressing my English). Questions and suggestions fly in as well. One that stood out lately […]