Over the years, legendary documentary film maker Ken Burns has put out a lot of movies — but now hes released his very first app, which lets you explore his work on American history in a totally new way. Called simply Ken Burns, the iPad app isnt a movie itself, but instead a collection of clips from past films. What makes the app so engaging is the way these clips are arranged — you can view them chronologically, through a timeline, or via a series of playlists each centered in a particular theme, like race or art. Burns has spent decades chronicling American history, and his enthusiasm shows through a number of introductory clips that are sprinkled throughout the playlists.