A new maser that can work at room temperature and without any powerful magnets could usher in a new age of masing instead of lasing. It may be good timing, as the next generation of lasers could be the most powerful lasers to ever lase. Now this new device could be the simplest maser to ever mase.
Reddit’s IAmA forums can be a regular source of BS, so when we came across this “Ask Me Anything” session in which a 24-year-old electrical engineer (and grad student) shares his experiences with having magnets implanted in his fingertips, we were skeptical. Then we read it, and it was kind of awesome. Moreover, it appears there are lots of people out there interested in the magnetic implant subculture--which apparently is a real thing.
It's long been known that birds have a sense for the Earth's magnetic field and can use it to aid in navigating their long migratory routes across the continents, but researchers at Oxford University and the National University of Singapore think their innate navigation tools are even cooler than once supposed. A new study shows that birds may actually see that magnetic field.
An international team of researchers claims to have figured out a way to use ultrafast bursts of heat, rather than the typical magnetic field, to record a bit of information on a hard drive--a development they say could vastly increase the efficiency and speed of hard drives. They say it could record multiple terabytes per second, hundreds of times faster than current methods.
Call it another victory for German design. Researchers in Dresden have set a new world record for the strongest magnetic field ever manufactured at the High Magnetic Field Laboratory Dresden (HZDR). Using a two-layer, 440-pound copper coil the size of a water bucket, they managed to coax 91.4 teslas from their creation for just a few milliseconds, surpassing the previous record of 89 teslas.
Looking for a source of renewable electricity? Researchers at the University of Toronto have found some serious current emanating from a huge cosmic jet 2 billion light years from Earth. At 1018 amps, the current is the strongest current ever seen, equalling something like a trillion bolts of lightning.
Modern technologies like GPS and cell signal triangulation have made the compass something of a novelty for most people simply trying to navigate their everyday lives. But super-sensitive compasses are necessary for many industrial and scientific applications, like oil and mineral exploration, seismology, or even maritime affairs (in emergencies, anyhow).
Researchers in Buffalo are bringing us a step closer to being controlled by machines. Or magnetized nanoparticles, at least: Heated magnetic nanoparticles targeted to cell membranes could control your behavior, according to a new paper in Nature Nanotechnology.
The researchers, led by University of Buffalo physics professor Arnd Pralle, used magnetic fields to activate neurons in a cell culture and steer the movement of nematode worms.