‘Space-Time Cloak’ to Conceal Events

The study, by researchers from Imperial College London, involves a new class of materials called metamaterials, which can be artificially engineered to distort light or sound waves. With conventional materials, light typically travels along a straight line, but with metamaterials, scientists can exploit a wealth of additional flexibility to create undetectable blind spots. By deflecting certain parts of the electromagnetic spectrum, an image can be altered or made to look like it has disappeared.

Previously, a team led by Professor Sir John Pendry at Imperial College London showed that metamaterials could be used to make an optical invisibility cloak. Now, a team led by Professor Martin McCall has mathematically extended the idea of a cloak that conceals objects to one that conceals events.

“Light normally slows down as it enters a material, but it is theoretically possible to manipulate the light rays so that some parts speed up and others slow down,” says McCall, from the Department of Physics at Imperial College London. When light is ‘opened up’ in this way, rather than being curved in space, the leading half of the light speeds up and arrives before an event, whilst the trailing half is made to lag behind and arrives too late. The result is that for a brief period the event is not illuminated, and escapes detection. Once the concealed passage has been used, the cloak can then be ‘closed’ seamlessly. Continue reading …

Related Posts

Tizen 2.0 Alpha code and SDK released The source code and the SDK for Tizen 2.0 alpha has been released. Tizen is a Linux distribution for mobile platforms cobbled together with parts from...
Ubuntu is not a community distribution That should be obvious to anybody who's been following the development of Ubuntu, but for those who have not, here's the deal: Ubuntu is not a communi...
Distributed data analysis with plain UNIX commands and Docker Swarm Editor: For setting up the Docker Swarm cluster used in this article, the author uses Docker Machine. Keep that in mind because the pre-stable version...
Using Decision Trees to predict infant birth weights In this article, I will show you how to use decision trees to predict whether the birth weights of infants will be low or not. We will use the birthwt...
Solution for crashing KDE applications on Linux Mint 17.1 Cinnamon On one of my test systems, I have Linux Mint 17.1 Cinnamon installed. However, I still like to use KSnapshot, the screenshot application for KDE. A...
Cenatic campaign: ten reasons for using open source in education Using open source software offers schools a unique opportunity to advance the information society that is fair and free, says Cenatic, Spain's resour...

We Recommend These Vendors and Free Offers

ContainerizeThis 2016 is a free, 2-day conference for all things containers and big data. Featured, will be presentations and free, hands-on workshops. Learn more at ContainerizeThis.com

Launch an SSD VPS in Europe, USA, Asia & Australia on Vultr's KVM-based Cloud platform starting at $5:00/month (15 GB SSD, 768 MB of RAM).

Deploy an SSD Cloud server in 55 seconds on DigitalOcean. Built for developers and starting at $5:00/month (20 GB SSD, 512 MB of RAM).

Want to become an expert ethical hacker and penetration tester? Request your free video training course of Online Penetration Testing and Ethical Hacking

Whether you're new to Linux or are a Linux guru, you can learn a lot more about the Linux kernel by requesting your free ebook of Linux Kernel In A Nutshell.


One Comment

  1. Pingback: Tweets that mention ‘Space-Time Cloak’ to Conceal Events — LinuxBSDos.com -- Topsy.com

Leave a Comment

Your email address will not be published. Required fields are marked *

*