<i>Wearable computer </i>

Google has revealed what looking through its 'Project Glass' wearable computer is like for the first time.
The glasses allow wearers to see sat-nav directions, take pictures and reply to emails - but until today Google has refused to show how they actually work.
However, the search giant still won't reveal when the glasses will go on sale or how much they will cost.
“Want to see how Glass actually feels? It's surprisingly simple,” Google said. “Say 'take a picture' to take a picture. Record what you see, hands free. Even share what you see, live. Directions are right in front of you. Speak to send a message, or translate your voice.”
The firm also said all of the footage was captured through Glass.
Project Glass will come in five colours - black, gray, blue, red or white and have removable shades.
The company is negotiating with Warby Parker, an e-commerce start-up company that sells trendy eyeglasses, to help it design more fashionable frames, according to the New York Times.
Google also detailed how the first people to get hold of them.
Potential 'Explorer' early-adopters will have to apply in 50 words or less, including a short video (15 seconds max) and five photographs, to explain what they would do with the early version of Glass.
They will then have to order a $1,500 Project Glass 'Explorer' kit and attend the pick up in New York, LA or San Francisco in person.
“We're looking for bold, creative individuals who want to join us and be a part of shaping the future of Glass,” the firm said.
“We'd love to make everyone an Explorer, but we're starting off a bit smaller. We're still in the early stages, and while we can't promise everything will be perfect, we can promise it will be exciting.”