Technology Portable laser scanner creates colour 3D images of surfaces or objects. Lidar uses lasers to create 3D images, but these can be hard to interpret because they are black and white.

The printed world isn’t flat. That’s the main takeaway of ‘Imprimer Le Monde’ (‘Print the World’), a mind-bending exhibition at the Centre Pompidou, where a striking selection of 3D-printed objects ...