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.
Anycast is a network addressing and routing method in which datagrams from a single sender are routed to any one of several destination nodes, selected on the basis of which is the nearest, lowest cost, healthiest, with the least congested route, or some other distance measure.