HumansEugenic America: How to exclude almost everyone Thousands of "unfit" people were forcibly sterilised in the US in the 20th century. Two new books show just how much rigour we need to avoid modern eugenics CultureLab
TechnologyMaterial that can grow when stretched is inspired by Islamic art Geometric patterns based on ancient Islamic designs allow metamaterials to move in ways that could be useful for medical devices and satellite technology News