Caltech researchers have developed these two new illusions that reveal how the senses can influence each other—in particular, how sound can give rise to visual illusions. These illusions occur so quickly that they illustrate a phenomenon called postdiction (as opposed to prediction) in which a stimulus that occurs later can retroactively affect our perceptions of an earlier event.
Computerphile
How much would you realistically pay for a pound of potatoes? A few dollars? Well, you won’t believe how much these expensive spuds once fetched at auction. These artisanal vegetables are grown in sandy soil fertilized by seaweed on an island off the Atlantic coast of France. They’re so delicate they must be harvested by hand, and they’re only available 10 days a year. These are the Bonnottes de Noirmoutier, and they are one of a kind.
