Tutorial for making simple jewelry from copper wire, stone and bead from LanAnhHandmade. The method is simple, easy to ...

Map of the Human Heart Let's get straight to the heart of the matter—the heart's job is to move blood. Day and night, the muscles of your heart contract and relax to pump blood throughout your body.

The atlas includes 75 types of heart cells, including cell types in the heart's valves and the muscles that fuel its beats that have never been seen before. It shows how these and other cells ...