Ever wondered how we can clean wastewater more efficiently? Scientists have discovered that biofilters made from pyrite and sawdust can remove harmful nitrogen compounds through a fascinating mix of bacteria and chemical reactions. Learn how these simple materials could transform wastewater treatment!

Artificial intelligence is now part of our daily lives, with the subsequent pressing need for larger, more complex models. However, the demand for ever-increasing power and computing capacity is rising faster than the performance traditional computers can provide.

To overcome these limitations, research is moving towards innovative technologies such as physical neural networks, analogue circuits that directly exploit the laws of physics (properties of light beams, quantum phenomena) to process information. Their potential is at the heart of the study published by the prestigious journal Nature. It is the outcome of collaboration between several international institutes, including the Politecnico di Milano, the École Polytechnique Fédérale in Lausanne, Stanford University, the University of Cambridge, and the Max Planck Institute.

A pioneering study led by the University of Oxford in collaboration with international partners has applied AI for the first time to count the Great Wildebeest Migration from satellite images. Unexpectedly, the results showed fewer than 600,000 individual wildebeest – less than half the previous estimate of 1.3 million animals. The results have been published today (9 Sept) in PNAS Nexus.