Updated Retailers are slashing the prices of the older Kindle models this week.
The Chinese phone maker's US debut may feature a powerful new set-top, but don't expect it to break the bank.
Researchers have developed a Bluetooth-like system that can extend the life of mobile devices by getting those with bigger batteries to contribute more power when communicating.
Interview Astronaut Chris Hadfield talks virtual reality, social networks and his favourite ever space walk.
No more lugging around your desktop ultrasound machine whenever you want to peer inside people's organs.