Researchers take a step towards light-based, brain-like computing chip

A technology that functions like a brain? In these times of artificial intelligence, this no longer seems so far-fetched – for example, when a mobile phone can recognise faces or languages. With more complex applications, however, computers still quickly come up against their own limitations. One of the reasons for this is that a computer … Read more

Ultra-secure form of virtual money proposed

A new type of money that allows users to make decisions based on information arriving at different locations and times, and that could also protect against attacks from quantum computers, has been proposed by a researcher at the University of Cambridge. The theoretical framework, dubbed ‘S-money’, could ensure completely unforgeable and secure authentication, and allow … Read more

Rethinking digital service design could reduce their environmental impact

Human-Computer Interaction researchers from the University of Bristol looked at how much electric energy was used to provide YouTube videos to people globally in 2016, to enable them to estimate the service’s carbon footprint in that year. Their analysis showed it was around 10Mt CO2e (Million Metric tons of carbon dioxide equivalent) – approximately that … Read more