2D shapes can be found printed in a book or you ... Polygons can look quite different, but have the same name. For example, look at these two shapes and count the sides on each.

The perimeter is the distance around the outside of a 2D shape. The distance can be measured in units like millimetres, centimetres, metres and kilometres. To work out the perimeter, add up the ...

Using X-ray pulses to illuminate nanoparticles, researchers decode diffraction patterns to construct detailed three-dimensional images. (Illustration: ETH Zürich / Daniela Rupp) In a 2D-XRD experiment ...

What just happened? Adobe's annual MAX creativity conference is usually packed with innovative ideas, and this year was no exception. A highlight was Project Turntable, an experimental tool that ...