A geometrical optical illusion is a type of puzzle in which lines, patterns, and figures mislead the brain about their actual perception. These optical illusions do not always seem correct as they ...

Much attention has been focused on Donald Trump’s use of words — that is, his peculiar style of oratory. But more attention should be paid to another feature of his discourse: his use of numbers.

How are F1 driver numbers decided? After race numbers were dictated by the previous year’s Constructors’ Championship, the FIA changed its rules in 2014 to allow drivers to choose their own permanent ...