The Sun has unleashed four colossal bursts of radiation in 48 hours
. On Tuesday, it released the biggest solar flare of 2013 so far, an intense burst associated with a huge eruption of particles. When these eruptions reach Earth, they can interfere with satellites and communications systems on the ground. The IET Electromagnetics Network held a seminar
on 14 January that covered three extreme electromagnetic environments that have the potential to cause devastating damage to widely distributed infrastructure through the interaction of an intense Electromagnetic Pulse (EMP).
Spintronics Discovery - Scientists find new magic in magnetic material. In research that is helping to lay the groundwork for the electronics of the future, University of Delaware scientists have confirmed the presence of a magnetic field generated by electrons
which scientists had theorized existed, but that had never been proven until now. The finding, which is reported in the journal Nature Communications,
expands the potential for harnessing the “spin” or magnetic properties of electrons — adding a fundamental new building block to the pioneering field of spintronics.
Dyson - the British engineering group - has unveiled a device that combines a high-speed hand dryer with hot and cold water outlets. It uses an electromagnetic field
, rather than carbon brushes, to accelerate from standstill to up to 100,000 revolutions per minute within 0.7 seconds. That was about four times the number of revolutions per minute that motors its size typically produced, Sir James said.
. The field of metamaterials involves augmenting materials with specially designed patterns, enabling those materials to manipulate electromagnetic waves and fields in previously impossible ways. Now, researchers from the University of Pennsylvania have come up with a theory for moving this phenomenon onto the quantum scale, laying out blueprints for materials where electrons have nearly zero effective mass.