Electromagnetic
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Olay's electromagnetic FaceWand offers targeted beauty treatment
Tech is beauty, or perhaps beauty is tech, but whichever way you frame it, it's apparently no longer enough to rub cream into your face at night. Now, if you can't maintain a beauty regimen without using a plug-in device, does it really count? That's why Olay is one of a number of blue-chip cosmetics brands that are now showing off products at CES. This time around, the company is boasting about its FaceNavi Smart Wand, which it claims will help save folks money on their skincare routine.
Can the Peloton formula work for weight training?
I've been going to the gym regularly for a few years now, but mostly to spend some time on the elliptical and stationary bike. There are free weights but I've always felt a bit uncomfortable going anywhere near them; they tend to be used by guys who grunt a lot and drop the weights on the floor. I just feel so judged (even if they don't actually care). And I'm not the only person who wants to do some weight lifting but can't for reasons like inconvenience or embarrassment. Tonal, a home weight training system that uses electromagnets, is aimed at people like us.
Tangled 'particle' helps scientists model rare ball lightning
Ball lightning (those bright spheres of light during some thunderstorms) remains mysterious despite decades of study. But how are you supposed to get a better look at it in a lab? Researchers might have discovered how through a happy accident: create a tangled atomic mess. They created a Shankar skyrmion, a quasiparticle whose artificial magnetic field, it turns out, mimics the electrical and magnetic fields of ball lightning. The team applied a magnetic field to a Bose-Einstein condensate (a state of matter for boson gas cooled to near absolute zero), in this case made of rubidium, to get the atoms to spin along the surface of a ball yet twist inside that ball.
Watch the US Navy’s electromagnetic catapult launch a fighter jet
The US Navy's next-gen Electromagnetic Aircraft Launch System (EMALS) has already shown it can hurl weighty dead-loads. Now, after months of trials, it just propelled its first actual aircraft. A jet fighter performed the first EMALS launch and recovery from the USS Gerald R. Ford on Friday.
Future phones will ID devices by their electromagnetic fields
While NFC has become a standard feature on Android phones these days, it is only as convenient as it is available on the other end, not to mention the awkwardness of aligning the antennas as well. As such, Carnegie Mellon University's Future Interfaces Group is proposing a working concept that's practically the next evolution of NFC: electromagnetic emissions sensing. You see, as Disney Research already pointed out last year, each piece of electrical device has its own unique electromagnetic field, so this characteristic alone can be used as an ID so long as the device isn't truly powered off. With a little hardware and software magic, the team has come up with a prototype smartphone -- a modified Moto G from 2013 -- fitted with electromagnetic-sensing capability, so that it can recognize any electronic device by simply tapping on one.
Transmitter tech opens the door to underwater radio
It's easy to take modern wireless communication for granted above ground, but it's useless in areas where the signals can't propagate, like underwater or in caves. DARPA might have a better way: its AMEBA (A Mechanically Based Antenna) team is developing portable ultra-low-frequency (1Hz to 3kHz) and very low frequency (3kHz to 30kHz) transmitters that could penetrate materials like water and stone with basic data. Scuba divers could send text messages to each other, for instance, while search and rescue teams could still contact the outside world while they're in tunnels.
Invisibility 'cloak' hides objects by making them seem flat
Humanity is still some distance away from a real, honest-to-goodness invisibility cloak, but British scientists are that much closer to making it practical. They've developed a coating that uses graded refractive index nanocomposite materials (just rolls off the tongue, really) to reduce an object's electromagnetic signature. Ultimately, it makes curved surfaces seem flat -- electromagnetic waves leave almost as if there were no object at all.
Disney scanner identifies gadgets by their electromagnetic field
If someone placed your naked smartphone on a table alongside two identical models, how would you determine which one is yours? If you're an engineer at Disney Research, you would pull out a little scanner and immediately pinpoint the handset based on the noise it emits. It definitely sounds a little futuristic, but a team of researchers at Disney's innovation labs found that every single piece of technology has its own unique electromagnetic signal, even if they're exactly the same make and model, and built a radio scanner to read them.
Dear Veronica: The magic of electromagnetism!
#fivemin-widget-blogsmith-image-362996{display:none;} .cke_show_borders #fivemin-widget-blogsmith-image-362996, #postcontentcontainer #fivemin-widget-blogsmith-image-362996{width:570px;display:block;} try{document.getElementById("fivemin-widget-blogsmith-image-362996").style.display="none";}catch(e){} I'm at CES this week (are you watching our coverage?) but before we set up shop in Sin City, I picked out a few great questions from your guys about electromagnetism! Specifically, if an EMP can take down a drone, and if we humans are susceptible to electromagnetism in smaller doses. Devindra Hardawar has the intel on if we should be wearing our tin-foil coats 24-7 or not! Subscribe in iTunes, RSS or YouTube!
Watch the US Navy test its electromagnetic jet fighter catapult
The US Navy's next-gen electromagnetic catapult for aircraft carriers works! Well, OK, the military hasn't exactly used it to launch an actual fighter jet yet, but a recent test has proven that it can handle 80,000 thousands of pounds of steel. The Navy has been testing the Electromagnetic Aircraft Launch System or EMALS for months aboard the Gerald R. Ford carrier, but this is the first time a "dead-load" (or a weighted steel sled that weighs up to 80,000 pounds) is involved. Its advantages over traditional catapults that use steam instead of electromagnetic energy include smoother acceleration and its ability to place less stress on the aircraft -- plus, it was designed to work even with more advanced carriers that the military will surely use in the future. It will take a long time before any plane goes near the system, though: the Navy has already retrieved the sled above from the depths of the James River to conduct more dead-load launches.
Testing for electromagnetic interference at Samsung's EMC lab (video)
Samsung's EMC Laboratory is right in the middle of its huge "Digital City" compound in Suwon, Korea. This site goes through roughly 4,000 products a year, with different rooms tasked with testing different sections of Samsung Electronics' admittedly broad range. What you see above is a 75 by 59 feet chamber set up for the electromagnetic interference test, with three antennas pointed at a yet-to-be-released TV (not shown in the photo for obvious reasons). All of this is simply to gauge precisely how much interference the product outputs, to ensure it doesn't exceed certain levels. Do read on if you want more detail -- we've also got a video tour waiting for you.
Hydra evolved: Sixense Stem launches on Kickstarter, we go hands-on with a prototype (video)
Sixense might not be a household name, but its electromagnetic motion sensing technology crops up in the darndest places. The 1:1 tracking technology is used in medical rehabilitation and Japanese arcade games, but it's most widely known as the wizardry behind the Razer Hydra motion controller. Now the company is gearing up to release a spiritual successor to the Hydra, the Sixense Stem System. Like the Hydra, Stem offers six degrees of motion-tracking freedom, albeit without the wires or Razer branding. It isn't necessarily more accurate, but it is more comprehensive -- it's a modular system that offers up to five trackable modules, or "Stems," that attach to game controllers, VR headsets, accessories or even appendages. We caught up with Sixense president and CEO Amir Rubin to learn more about the Stem's Kickstarter launch and the company's first foray into the consumer product space.
Navy awards weaponized railgun manufacturing contract to BAE Systems
Just over 18 months after making its video debut, the Navy's electromagnetic railgun has a manufacturer. BAE Systems -- known for e-ink-powered tank camouflage, autonomous spiderbots and machine-gun-mounted lasers -- won the government contract and hopes to have phase-two prototypes ready "as early as next year." While the current design is capable of firing one shot, the Office of Navy Research hopes for six to ten shots per minute. If that doesn't scare you, consider this: The pulse-driven projectiles travel at Mach 6 and can hit targets over 100 nautical miles away. Don't worry, it's not too late to rethink that career of sailing the high seas as a pirate and get to work on that accounting degree instead.
ZeroN slips surly bonds, re-runs your 3D gestures in mid-air
Playback of 3D motion capture with a computer is nothing new, but how about with a solid levitating object? MIT's Media Lab has developed ZeroN, a large magnet and 3D actuator, which can fly an "interaction element" (aka ball bearing) and control its position in space. You can also bump it to and fro yourself, with everything scanned and recorded, and then have real-life, gravity-defying playback showing planetary motion or virtual cameras, for example. It might be impractical right now as a Minority Report-type object-based input device, but check the video after the break to see its awesome potential for 3D visualization.
Man illuminates electromagnetic waves using coffee cans and LEDs, Christmas-colored science ensues
Electromagnetic radiation is all around us, but we're largely unaware that our bodies are constantly bathed in waves of the stuff because our eyes aren't equipped to see most of it. Dr. Gregory Chavat decided to give us a glimpse of an EM waveform, however, by using a coffee can radar system, a couple of LEDs, and long-exposure photography. The setup consisted of a radar emitter made out of one coffee can and a second can with a couple of LEDs attached to serve as a tethered receiver antenna. Those LEDs were then set to that light up red or green to illuminate the EM wave peaks and valleys. By moving the receiver closer and further away from the emitter while taking a long exposure photo, the good doctor was able to capture the wavefront radiating on film, and let you see the unseen with a bit of Christmas-colored flair. Check the video below for a fuller explanation, and hit the more coverage link to learn how to build a coffee-can radar and perform some basement black magic yourself.
Artists hack Sony Ericsson's Xperia phones to see the unseen universe, use fire as a flash
For most of us, cellphones are for texting, calling and maybe the occasional tweet, but what happens when you hand them over to some of the world's most creative minds? Giving hackers, artists and intellectuals free reign to mess with the various Xperia phones, Sony found out just how capable its handsets really are. Using a few tweaks and hacks, artists were able to create an installation that breathes fire when you snap a photo, a remote-controlled boat with GPS and a bike that uses colored lights to spell out secret words only visible when captured on camera. When Sony asked astrophysicist Joshua Peek to give it a go, he took full sky maps and telescope image data to build an app with an up-close view of electromagnetic patterns in the sky. To round out the project, musician Annabel Lindquist composed a song based on the sounds of Paris she recorded with an Arc. Now, if they could just mod one to avoid dropped calls, we'd be all set. Videos of their ingenuity in action after the break.
Biofeedback anti-stress pen: a great idea that's not so great at reducing stress
We've all known for quite some time that the pen is mightier than the sword, and now science has given us a pen that is mightier (sort of) than the stress of that TPS report your boss needs right now. A student at Delft University in The Netherlands will receive his PhD this week for research that led him to create just such a pen. Based upon the obvious premise that people play with their writing utensils when anxious, the pen uses motion sensors instead of more conventional means of stress detection. When the pen detects stressful movements, internal electromagnets provide corresponding counter-motion feedback to stop your nervous tics. During experiments, the pen did diminish test subjects' heart rates around five percent, but according to feedback none of them actually "felt" less stressed. The pen isn't yet commercially available, and given its dubious value as an actual stress reliever, we would look to more satisfying methods to aid the relaxation process.
Santa Fe WiFi foe strikes again: sues neighbor for using wireless devices, lives in a car
No, this isn't him, because the real Arthur Firstenberg (with or without a cat) would probably need more than an aluminum helmet to cure his "electromagnetic sensitivity," symptoms of which allegedly include stomach pains and memory loss. In fact, this man -- an active member of the anti-wireless group in Sante Fe -- has taken one step further by suing his bewildered neighbor 25 feet away for refusing to switch off her wireless devices, which he claims has forced him to stay at friends' or live in a car. We'd say just chill out, find some place in the middle of an African desert, and then fly out. Oh, wait. [Photo courtesy of Wally Glenn]
First electromagnetic 'black hole' built on earth, nobody raps about it
An electromagnetic black hole -- which sucks in the light surrounding it -- has been built at Southeast University in Nanjing, China for the first time. The device works like cosmological black holes in that it has gravity which is intense enough to bend the surrounding space-time, causing any matter in the neighborhood to spiral inward and create the hole itself. The earth-built 'black hole' for microwave frequencies is constructed of 60 annular strips of meta-materials (yes, that's the stuff of invisibility cloaks). Each strip is an intricately etched circuit board which seamlessly and smoothly connects to the strips next to it, creating both a shell and absorber section to the device. When an electromagnetic wave hits the device, it is trapped and guided through the shell region toward the core, where it is absorbed. The device, which was created by Tie Jun Cui and Qiang Cheng, converts that absorbed light into heat, meaning that future possible applications could include new ways of harvesting solar energy. Hit the read link for a fuller description of this truly bad dude.
Electromagnetic invisibility a precursor to the real thing?
This could either be that one giant leap, or just another in a long sequence of multidirectional small steps on the Quixotic quest for undetectability. So-called dc metamaterials are the chief culprit for inciting our interest anew, as researchers from Universitat Autònoma de Barcelona have found a way to use them to render metallic objects invisible to low frequency electromagnetic waves. Composed of irregular networks of superconductors, the metamaterials are capable of granting superpowers altering the magnetic field of materials, and in theory, this advance could aid magnetic imaging in medical settings and also help cloak military vessels from magnetic detection. Of course, there's still the whole "oh, now we need a working prototype" conundrum, but hey, at least we've got the gears turning in the right direction.[Via PhysOrg]
