Fast and loud—how to create sonic booms and curious clouds

Growing up beneath the Concorde flight path, I learned early on that if you heard its characteristic roar overhead you had to look far towards the horizon to see it. If you were lucky, you would see Concorde first. You could ...

Polymers render concrete fire-resistant

Self-compacting high-performance concrete (SCHPC) has till now suffered from one weakness – when exposed to fire it flakes and splits, which reduces its loadbearing capacity. Empa scientists have now developed a method ...

Carbon nanotubes grown in combustion flames

An international research team's theoretical simulation of the synthesis of single-walled carbon nanotubes has revealed important details of the mechanisms at play. This could lead to better ways to control the production ...

Biomedical sensors for disease detection made simple

Healthcare researchers are increasingly focused on the early detection and prevention of illnesses. Early and accurate diagnosis is vital, especially for people in developing countries where infectious diseases are the leading ...

Chest strap heart rate monitor

A team of Empa scientists has, together with industrial partners, developed a novel chest strap device for the long-term monitoring of patients with heart and circulatory problems. What is special about the new system is ...

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