Sunday, April 22, 2012

Forget WiFi and Radio Waves, LiFi Uses Lightbulbs to Connect to the Internet

Whether you're using wireless internet in a coffee shop, stealing it from the guy next door, or competing for bandwidth at a conference, you've probably gotten frustrated at the slow speeds you face when more than one device is tapped into the network. As more and more people - and their many devices - access wireless internet, clogged airwaves are going to make it increasingly difficult to latch onto a reliable signal.


One German physicist, Harald Haas, has come up with a solution he calls "data through illumination" - taking the fiber out of fiber optics by sending data through an LED lightbulb that varies in intensity faster than the human eye can follow. It's the same idea behind infrared remote controls, but far more powerful. More..

Forget WiFi and Radio Waves, LiFi Uses Lightbulbs to Connect to the Internet -- Science & Technology -- Sott.net: http://www.sott.net/articles/show/244434-Forget-WiFi-and-Radio-Waves-LiFi-Uses-Lightbulbs-to-Connect-to-the-Internet

University of Texas researchers design chip allowing mobile devices to see through walls

As unbelievable as it sounds, researchers at the University of Texas at Dallas have created an imager chip for mobile devices which would turn an ordinary cell phone into something which can see through walls, wood, plastics, paper, skin and other objects.

Using the terahertz (THz) band of the electromagnetic spectrum, the wavelengths of which fall between the microwave and infrared bands, the chip could signify a revolution in the surveillance capabilities of mobile phones along with new chips like Broadcom’s BCM4752 which is capable of providing ultra-precise location data.

Combine this with citizen spying applications and the techniques which gently push people to conduct surveillance without them knowing what they’re actually doing, patents from Google which would allow them to collect the data from such chips and the National Security Agency’s (NSA’s) new data center and you have the penultimate surveillance state. More..


University of Texas researchers design chip allowing mobile devices to see through walls - BlackListedNews.com