Pictured is a card of buttons prepared by Brenda Eilbracht, of Champaign, on Saturday at the Illinois State Button Society show in Normal. This entry won a third-place award.

Pressing a button appears easy, but the brain needs a probabilistic internal model to control a press. A new theory exposes significant improvements to button design that help gamers and musicians.

Stuck Labs has unveiled a new tactile lift button that remains safely contactless yet is capable of providing two types of feedback without the need for ...