Penrose Triangle
The Penrose triangle was created by Swedish artist Oscar Reutersvärd in 1934. It was described and later popularized by mathematician Roger Penrose, who described it as “impossibility in its purest form.”
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These Mindbending Optical Illusions Will Break Your Brain
The More You Know
- Bill Murray and Dan Aykroyd dusted off their Ghostbusters costumes to visit a terminally ill child who was a fan of the film and wanted to meet them.
- The world record for the tallest stack of doughnuts totaled more than 3,000.
- North Korea and Cuba are the only places you can't buy Coca-Cola.
- You only breathe out of one nostril at a time.