First Antimagnet Developed

Bar magnet with iron filings showing magnetic field pattern. Researchers have designed what they believe to be a new type of magnetic cloak, which shields objects from external magnetic fields, while at the same time preventing any magnetic internal fields from leaking outside. (Credit: © Awe Inspiring Images / Fotolia)

Cloaking Magnetic Fields: First Antimagnet Developed -- Science Daily

ScienceDaily (Sep. 23, 2011) — Spanish researchers have designed what they believe to be a new type of magnetic cloak, which shields objects from external magnetic fields, while at the same time preventing any magnetic internal fields from leaking outside, making the cloak undetectable.

The development of such a device, described as an 'antimagnet', could offer many beneficial applications, such as protecting a ship's hull from mines designed to detonate when a magnetic field is detected, or allowing patients with pacemakers or cochlear implants to use medical equipment.

Read more ....

Magnetic Waves Help Make Sun’s Atmosphere Hotter

Powerful Magnetic Waves Help Make Sun’s Atmosphere Hotter Than Sun Itself -- Discover Magazine

What’s the News: An international team of researchers, led by the National Center for Atmospheric Research, has learned that large magnetic waves are partly to blame for the Sun’s immensely hot corona. The study, published in the journal Nature, also suggests that the waves could be the driving force behind the solar wind.

Read more ....

Strong Magnets With Printed Poles Have Endless Engineering Applications

From Popular Mechanics:

The Brilliant Idea: Magnets printed with multiple poles, opening the door to myriad applications.

Larry Fullerton set out to invent a self-assembling magnetic toy that would fuel his grandchildren’s passion for science. Instead, he invented a way to manipulate magnetic fields that redefines one of the fundamental forces of nature.

Fullerton’s breakthrough tramples the long-held assumption that magnets have two opposing poles, one on each side. He found that if he used heat to erase a magnetic field, he could then reprogram material to have multiple north and south poles of differing strengths. “People look at magnets as having a north pole and a south pole. That limits your thinking,” he says. “I came along from the field of radar and said, ‘Hey, that’s not a magnet—it’s a vector field!’”

Read more ....