Here's a list of the best air fryers you can buy, plus tips and tricks on how to use one, as chosen by Engadget editors.

Light can tie knots—literally. Engineers at Duke University have managed to manipulate laser beams to form intricate 3D patterns called optical knots, using custom-designed optics. These twisted beams ...

The executive interior features five seats in the main cabin with a two place divan in the forward right side, an aft belted lavatory seat adjacent the main entry door and two optional aft jump seats ...