Magnetic materials are always made of metal, but not all metals are magnetic. Iron is magnetic, so any metal with iron in it will be attracted to a magnet. Steel contains iron, so a steel ...
Professor Hrvoje Tkalčić, lead author of the study, says: 'The magnetic field is a fundamental ingredient ... a liquid metal outer core, and a solid metal inner core. When the movement of tectonic ...
The main hazard is to those with pacemakers or metal implants in their body. The University of Massachusetts ... Training Module: this training will take you through the basics of Magnetic fields, its ...
Earth’s outer core is made up of mostly molten iron, a liquid metal. Unpredictable changes in the way it flows cause the magnetic field around the Earth to shift, which then causes the magnetic ...