As the time line at right shows, hundreds of times in our planet's history the polarity of the magnetic shield ensheathing the globe has gone from "normal," our current orientation to the north ...

This type of magnetic field is known as a geodynamo, and the force field structure that deflects most of the solar wind and forms a protective shield is called the magnetosphere. To understand how ...

Stereotaxis announced the first order for its GenesisX endovascular surgical robotics system utilizing robotic magnetic navigation.