Cognitive Radios are aware of their surroundings and bandwidth availability, and are able to dynamically tune the spectrum usage based on location, nearby radios, time of day and other factors.
This provides for more efficient use of the spectrum as well as reducing power consumption.
Varied devices will be able to detect other radios around them and work together to optimize the use of spectrum….read more
For all her faults, Siri is a useful companion. Sometimes. But she defaults to Apple Maps. Thankfully it’s rather simple to trick Siri into giving you directions with Google Maps instead. No jailbreak required.
As shown in the video above, instead of saying, “Take me to the nearest Best Buy,” tell Siri “Take me to the nearest Best Buy via transit.” Those two little extra words prompts Siri to open a screen which displays transit apps. Simply click the button next to Google Maps to bypass Apple Maps altogether. It’s that easy.( more..)
Google’s original premise was to be a super simple, stripped down search engine.
It became famous for delivering 10 highly accurate blue links on a white screen. It also had a playful “I’m Feeling Lucky” option that would take you straight to a web page. Read more..
Americans tend to think of free speech as allowing us to say just about anything we want, minus shouting “fire” in a crowded theater or threatening violence. But does that mean you have the same rights on a social network, specifically Twitter? Hey, it’s not a government entity, it’s a company. So does this free speech blanket apply? Years ago when the FCC still held weight, George Carlin famously recounted the “7 words you can’t say on TV” – is there a similar list of things you can’t say on Twitter…. (More)
If you live in the West the answer to the question ‘How much freedom do you really have online?’ is probably ‘quite a lot’. But this month I learned that the freedom TO speak doesn’t always lead to being free AFTER you speak, when I met journalists and campaigners at the 7th annual Internet Governance Forum (IGF), held in Baku, Azerbaijan.
The edge of technology is when it enables you to do something that you couldn’t do before. It’s one thing to put your imagination down onto a piece of paper, or into a computer program, but what if you could hold it in your hands? This is the vision of 3D printing. Digital designs can be turned into real objects using various kinds of plastic. This technology is not new, but bringing the machine home with you is — the people behind MakerBot started the company with a goal of making 3D printing more accessible….(more)