Gadgetory

most of our data is transferred using radio waves but there's a new type of technology in town that uses light instead here's how it works so how do you transmit data using only lights well it starts with this ceiling unit that plugs into the internet via ethernet and also hooks up to an ordinary LED light information is then sent to that light we can't really tell it looks like it's just on but in fact that light is flickering millions of times a second and that is beaming out the data to this receiver down here this receiver decodes those flickering lights and interprets it as the data that is actually being sent here you can see we are streaming a video from this light bulb onto this television the proof that comes when I put my hand over the receiver and stop that light from getting through and that will actually prevent the streaming from happening you can see behind me it's now frozen up but what about when you've got lots of different lights in the room won't there be interference well the pneumocard product for this year will recognize which light it's supposed to be receiving data from and not receive information from any other's information over radio spectrum isn't going away anytime soon but this is an interesting look at a possible alternative what do you think let me know i'm luke west oficina to check out cnet.com but loads more from mobile or Congress