Carbon dioxide diffuses out of the tissues and into the blood, where it is dissolved in the plasma. While some of the carbon dioxide remains dissolved in the plasma, most carbon dioxide diffuses into our red blood cells.
A screencast is a digital movie in which the setting is partly or wholly a computer screen, and in which audio narration describes the on-screen action. It's not a new idea.
Record Screen with a Button. This free screen recorder is web-based, meaning you don't have to download screencast software to your computer to do the recording. Instead, you just open this free online screen recorder in your web. Export videos to MP4, WMV, AVI, FLV, MPEG, VOB, ASF and GIF.