1.   These are simple small disks made out of magnetic material which are small enough to be carried in a briefcase.

2.   A drawback of induction cooking is that it works only with pots and pans that contain iron or some magnetic material.

3.   The device is made of Terfenol-D, a magnetic material developed by the Navy for use in sonar equipment.

4.   Those impulses are impressed onto a physical medium such as vinyl or magnetic material on the surface of a tape.

5.   Underlying the densities is an technique used to deposit an ultrathin layer of ruthenium, a precious metal similar to platinum, between two layers of magnetic material.

6.   At issue are tiny magnets and magnetic materials that are commonly used in motors for computer hard drives, DVD players and other devices.

7.   He also initiated the first neutron diffraction investigations of magnetic materials.