Leo Goodman, professor emeritus of sociology and statistics, dies at 92

Leo Goodman, trailblazer in statistics and social sciences, dies at 92

A graphical illustration shows a forearm and hand showing a thumbs up sign. The forearm has what appears to be a transparent electrical chip on it.

High-five or thumbs-up? New device detects which gesture you want to make

 Posterized faces with different expressions of emotion.

The 16 facial expressions most common to emotional situations worldwide