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We are delighted to annouce that Professor Marc Burger has been invited to deliver the 2023 Nexus lecture at UNSW in Sydney.

The Mathematical Kangaroo, one of the largest mathematics competitions in the world, took place on 16 March. More than 50,000 Swiss schoolchildren took part in this year’s challenge. To ensure that all the young participants understand the maths problems, the questions are translated into various languages – including, as of this year, Ukrainian. Alexey is a schoolboy from Ukraine. He has taken part in the competition several times in his home country and spoke to us about his experiences.

It doesn’t have to be a hurricane or a tsunami – even a simple running water tap induces a shock wave upon impact with the sink. Understanding such complex and violent fluid flow dynamics has helped scientists to design more efficient turbines and aircrafts, and to better predict weather and climate. Now, with the help of CSCS’s supercomputer "Piz Daint", mathematician Siddhartha Mishra is working to overcome current barriers to simulating and comprehending highly turbulent flows.

The 2023 Walter Saxer Prize goes to Gabriele Visentin for his doctoral thesis and to Rebecca Morger for her Master's thesis. Congratulations!

We are very sad to announce that Professor André Haefliger died on 7 March 2023 at the age of 93.