Language Selection

English French German Italian Portuguese Spanish

Useful cloaking device is one step closer to reality

Filed under
Sci/Tech

Last October saw a major breakthrough in an area of research that, until very recently, was squarely in the realm of science fiction—cloaking technology.

An article published in Science by a team of researchers at Duke University discussed how they had created a device that was able to cloak simple objects from microwave radiation.

While this was a stunning announcement, it wasn't what many Trekkies would think of off the top of their head. The Duke team used metamaterials—synthetic materials whose physical structure interacts with electromagnetic (EM) waves in ways that natural materials do not—to essentially guide microwave radiation at a given frequency around a cavity that held the object. If one looked at it, they would still clearly see the entire setup as microwaves have a much longer wavelength than visible light. Another shortcoming was that while the cloak kept the material invisible from outside viewing, it did nothing to keep EM radiation originating from inside the cavity from getting out. This means that anything emitting EM radiation—heat from a person's body, RF signals from a cell phone/radio, or even a simple flashlight—would be instantly detectable. Now, some new mathematics suggests a way one can get around this issue.

Full Story.

More in Tux Machines

today's leftovers

today's leftovers

  • Why leading DevOps may get you a promotion
    Gene Kim, author of The Phoenix Project and leading DevOps proponent, seems to think so. In a recent interview with TechBeacon's Mike Perrow, Kim notes that of "the nearly 100 speakers at DevOps Enterprise Summits over the last two years, about one in three have been promoted."
  • Cloud Vendors, The Great Disruptors, Face Disruption From Blockchain
  • SWORDY, a local party brawler could come to Linux if Microsoft allow it
    SWORDY is a rather fun looking local party brawler that has just released on Steam in Early Access. It could see a Linux release too, if Microsoft allow it.
  • System Shock remake has blasted past the Linux stretch goal, officially coming to Linux
    The Linux stretch goal was $1.1 million and it's pleasing to see it hit the goal, so we won't miss out now. I am hoping they don't let anyone down, as they have shown they can do it already by providing the demo. There should be no reason to see a delay with Linux now.
  • GammaRay 2.5 release
    GammaRay 2.5 has been released, the biggest feature release yet of our Qt introspection tool. Besides support for Qt 5.7 and in particular the newly added Qt 3D module a slew of new features awaits you, such as access to QML context property chains and type information, object instance statistics, support for inspecting networking and SSL classes, and runtime switchable logging categories.
  • GammaRay 2.5 Released For Qt Introspection
    KDAB has announced the release of GammaRay 2.5, what they say is their "biggest feature release yet", the popular introspection tool for Qt developers.
  • The new Keyboard panel
    After implementing the new redesigned Shell of GNOME Control Center, it’s now time to move the panels to a bright new future. And the Keyboard panel just walked this step.
  • Debian on Seagate Personal Cloud and Seagate NAS
    The majority of NAS devices supported in Debian are based on Debian's Kirkwood platform. This platform is quite dated now and can only run Debian's armel port. Debian now supports the Seagate Personal Cloud and Seagate NAS devices. They are based on Marvell's Armada 370, a platform which can run Debian's armhf port. Unfortunately, even the Armada 370 is a bit dated now, so I would not recommend these devices for new purchases. If you have one already, however, you now have the option to run native Debian.

OSS Leftovers