5 results found for physical

In thistalk Harry Kroto explains that molecules have structures that are every bit as real in the mind of the chemists who create them, as are the edifices of brick, steel and concrete designed by architects and built by engineers.

In 1985 an experiment, designed to unravel the carbon chemistry in Red Giant Stars, revealed the existence of C-60 Buckminsterfullerene (the third allotropic form of carbon). The story of the discovery and the way its symmetry relates to the natural ....

Carbon nanotubes, some 1000 times smaller than conventional carbon fibers, have tensile strengths 100x that of steel and conduct electricity like metals. They promise a revolution in structural and electrical engineering.

Michael Garrett discusses the physical properties of gases and demonstrates how air is liquefied. Liquefied gases are a key resource for survival with an amazing range of applications and there are now few industries which are not in some way depende....

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....