To achieve target delivery of drugs to cells and organs, scientists have to be able to transport the molecules of pharmaceutical substances to targets using a controllable carrier. The role of such a ...

Working on a computer to make 3D objects can be a very tricky process with a steep learning curve. Now researchers at Perdue University (Indiana, USA) have developed a new design tool enabling users ...

The human visual system exhibits a remarkable ability to decipher the three-dimensional structure of the world from two-dimensional retinal images. Central to this process is the utilisation of shape ...

A 2D shape is symmetrical if you can draw a line through it and it looks exactly the same either side. This line is called a line of symmetry. Oh that rather smug expression tells me that square knows ...

These are all axisymmetrical shapes, or symmetrical around a vertical axis. Non-symmetrical shapes are more difficult, but ...

This question illustrates fascinating properties of the gravitational force. A single spherical object, such as Earth or a star, has its shape due to gravity. So at first we might expect all objects ...