GMR read heads are used in computer hard drives. But what are their functions? What are they made of? What is giant magnetoresistance? Where does it come from? What does it make possible?
Date: 2010 Duration: 3.45 Produced by: Jean-Yves Pipaud, EPSIM Credits: SOLEIL synchrotron, CNET networks, IBM, Computer History Museum, Seagate, Fotolia
