Day turns to night, clouds pass by, construction cranes move left and right and the Atlantic Yards Webcam captures it all in a "photostream", a series of what are called "sequential snapshots", It's one of several places around the web where construction of the Barclays Center is recorded.
Some are connected to the project, others are amateur. On the Barclays Center website, there are updated photos taken from an office building across Atlantic Avenue, including the one taken a few nights ago. Critics, like Tracy Collins, have also chronicled the progress at times. And much of it can be found on the New York Skyscraper blog on Atlantic Yards.