You can play and pause the video with the control just below the video pane, to the left.
You can increase or decrease the volume by sliding the bar on the control just below the video pane, to the right.
You can see your location and duration information, and you can jump anywhere in the video, by using the timebars above and below the video pane.
You can resize the video and transcript panes with the controls above the video pane, at the right.
You can find bibliographic information beneath the video pane, as well as in "See More Details" at the top of the screen.
The video player and transcript features are designed to work together to let you explore and drill down in the video to suit your interest and research.