Google Glass has been hacked so that it can be controlled by brainwaves. By combining the smart glasses with an electroencephalography (EEG) headset, the software makes it possible to take a picture without moving a muscle. London-based start-up This Place said the tech could be utilised in high-pressure hands-free situations – such as during surgery. It has released the MindRDR software for free in the hope that developers will adapt it for other uses. Google made it clear that it does not support the app.