1.0 video WFCT Day Two: How is Glass Changing? 960 540 iPlayerHD https://iplayerhd.com <iframe src="//iplayerhd.com/player/video/b27f8f65-8b17-4c9e-8ba0-2e9e19ce6799?cbartype=over" allowtransparency="true" frameborder="0" scrolling="no" allowfullscreen mozallowfullscreen webkitallowfullscreen oallowfullscreen msallowfullscreen width="960" height="540"></iframe>