'Will I look dumb?' Human-like virtual assistants can deter help-seeking

Virtual assistants have become increasingly sophisticated — and more human-like — since the days when Clippy asked if you needed help with your document. These assistants are intended to make programs and apps easier to use, but research suggests that human-like virtual assistants may actually deter some people from seeking help on tasks that are supposed to measure achievement. 
'Will I look dumb?' Human-like virtual assistants can deter help-seeking

Physicists build muscle for shape-changing, cell-sized robots

Robotics experts have made a robot exoskeleton that can rapidly change its shape upon sensing chemical or thermal changes in its environment. And, they claim, these microscale machines — equipped with electronic, photonic and chemical payloads — could become a powerful platform for robotics at the size scale of biological microorganisms.
Physicists build muscle for shape-changing, cell-sized robots