Place any number of dots on a two-dimensional plane—say, a piece of paper—and measure the distance between each pair. If you rearrange the dots, how many pairs could be positioned exactly the same ...

Chinese scientists have uncovered differences between American and Chinese vaginal microbiomes, revealing that a bacterium closely linked to bacterial vaginosis and preterm birth is more prevalent and ...

A famed physicist’s scribbles reveal the answer to a quintessential dilemma: When dining out, is it better to stick with an old favorite, or try something new? Nobel Prize–winning physicist Richard ...

TV resolutions can be a confusing jumble of letters and numbers. There's very little consistency between the terms, and anyone who doesn't regularly surf spec lists could understandably be baffled by ...