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Planar magnetic headphones don’t use the magnet-and-coil driver typical to most cans. Instead, they use a fixed but flexible diaphragm that undulates to create sound. RHA is the first company to concentrate this technology into wireless earbuds (the kind that are tethered to a Bluetooth collar that hands around your neck). The CL2 Planar earphones […]
Enlarge (credit: Corr et al. 2018) In 1545, freshly refitted to carry a greater number of heavy cannon, the warship Mary Rose sailed into battle against a French fleet north of the Isle of Wight. The debate over what happened next is still heated, but the most accepted version is that the added weight of […]
RHA has unveiled the CL2 Planar, a Bluetooth in-ear headphone that the company says is the first to use planar magnetic technology, putting high-quality audio in a small device. I’m not sure what that is, but it’s enough for RHA to price the headphones at $ 900, for those placing preorders. It will debut online […]
Enlarge / No, no. Time crystals aren’t anything like The Dark Crystal. (credit: Jim Henson Studios) Sometimes, a paper contains so many buzzwords it is hard to take it seriously. Time crystals were first mooted in 2012, and a realistic discrete time crystal was observed in 2017. The crystals we are familiar with have a […]
Earth’s magnetic field is decaying at such a rapid rate that scientists think the poles may flip. New research shows the most significant weakening is happening under Africa, in an area called the ‘South Atlantic Anomaly.’ As well as giving us our north and south poles, the magnetic field blankets the Earth, protecting it from […]
Magnetic north changes by as much as 40 miles per year, and that means signage updates. https://media.wired.com/photos/5a61428b8d54c45db9d485cb/master/pass/MagnetRunway-FeatureArt-157741248.jpg
Enlarge / The fast radio burst in question, FRB 121102, is located in the top-right portion of the image. On the left is a large supernova remnant. (credit: Rogelio Bernal Andreo (DeepSkyColors.com)) The Arecibo Observatory may be suffering along with the rest of Puerto Rico, but some of its data made a big appearance in […]
Enlarge (credit: NASA/JPL-Caltech) In the search for new planets, a lot of the focus has been on finding some that reside in what’s called the habitable zone. This is an area between where a planet’s orbit receives enough starlight to keep water liquid, but not so much light that it all boils off as steam. […]
MRI scans provide information about the body without actually touching it. Now two Toronto teens are trying to adapt that approach to search for what is in someone’s blood noninvasively. CBC | Health News
Published time: 22 Oct, 2017 10:00 Edited time: 22 Oct, 2017 10:10 Plasma explosions from the sun over billions of years have all but stripped Mars of its atmosphere. But a new discovery by NASA shows that remnants of the Red Planet’s magnetic field can be found in the form of a rotating ‘tail’. Invisible […]
