Magnetic fields applied to the brain can be used to treat ADHD, improve memory and even control your behavior and sense of morality. But unless you're a neuroscientist, it's hard to see the physiology of this phenomenon, other than trying to interpret colorful brain scans.
The following video accomplishes this beautifully.
Foxes seem to use the Earth’s magnetic field to track down their prey, apparently the only animal to use the field to judge distance as well as direction. A pair of researchers in the U.S. and Germany believe foxes have an innate augmented reality system allowing them to accomplish this.
Putting the right kind of strain on a patch of graphene can make super-strong pseudo-magnetic fields, a new study says. The finding sheds new light on the properties of electromagnetism, not to mention the odd properties of graphene, according to researchers at Lawrence Berkeley National Laboratory. When graphene is stretched to form "nanobubbles," the stress causes electrons to behave as if they were subject to huge magnetic fields, the size of which have never been seen in a lab before. The study is published today in the journal Science.
Michael Crommie, a senior scientist in the Materials Sciences Division at Berkeley Lab and a physics professor at the University of California-Berkeley, says this is a completely new effect that has no counterpart in any other condensed matter system.
By Taylor NewmanPosted 09.24.2009 at 3:50 pm 0 Comments
For patients with conditions like cancer, diabetes and chronic pain, taking drugs orally is often insufficient; a more precise and flexible on/off dosing schedule controlled by an implanted device can provide better treatment based on day-to-day--or minute-by-minute--conditions.
While various methods for regulating drug-dispensing implants exist (including implanted heat sources and electronic chips), a new device with a membrane of magnetic nanoparticles can be controlled simply by applying a magnetic field.
For decades, scientists have debated whether or not gasses could display the same magnetic properties as solids. Now, thanks to some MIT scientists, they know the answer is a freezing cold yes.
MIT researchers have observed magnetism in an atomic gas of lithium cooled down to 150 millionths of a degree above absolute zero. This experiment represents a point of unification between condensed matter research and the field of atomic science and lasers, and could influence areas such as data storage and medical diagnostics.
In keeping with our movie physics theme of the past few weeks, it seems appropriate to take a look at the trailer from the action "science" disaster film The Core. As with Armageddon and its deadly asteroid, The Core starts with an interesting premise -- the possible disappearance of the Earth's magnetic field.