<ul><li>A team of researchers has developed a new type of bicycle helmet that offers better protection for cyclists.</li><li>The helmet design uses special geometric shapes in a shock-absorbing material to effectively protect the head during accidents.</li><li>The material structure of the helmet, called an auxetic metastructure, contracts inward upon impact, absorbing more energy and reducing the force that reaches the head.</li><li>The helmets can be custom-made using 3D printing, providing better safety and improved comfort for individuals with different head shapes.</li></ul>

This helmet design could make cycling much safer

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