Google gives clear look at Glass

Google has released a video tutorial on how to use its wearable Glass computer, which allows users to see timelines and share pictures using a touch pad.

Operated via voice and touch, Google Glass is set to be a major hit when it comes on the market at the end of the year.

Owners will be able to record video and take pictures of whatever they see and share them on social networks, with rumours growing that Twitter has already designed an app to run on the glasses.