19 results found for physical

Nuclear magnetic resonance (nmr), a powerful technique for determining molecular structure, has totally revolutionised chemistry. From its inception half a century ago, its potential as an analytical tool for identifying compounds was clear, albeit l....

Winner of the Nobel Prize in Chemistry 1992 'for his contributions to the theory of electron transfer reactions in chemical systems'. We ask Marcus to explain how he works and he replies that he draws pictures in order to visualize problems. On relig....

Solar power technology and recent research

John Murrell discusses the basic physical principles relating to the gaseous, liquid and solid states with the aid of models and demonstrations. Attention is drawn to phase changes and subtle features involving intermediate phases such as liquid crys....

Description of chemical vapour deposition to make large area graphene samples

The wave equation and its physical origin. Power in a wave and its relation to intensity in radiation.

This talk shows how scientists use structural and modelling techniques to help understand the fascinating properties of crystalline materials.