Catalyst Volume 20 Issue 2
This issue of Catalyst includes the following articles:
Zeolites are naturally occurring sponge-like materials which can be used as chemical sieves and catalysts.
This article introduces Dorothy Hodgkin and her work as an X-ray crystallographer.
Using zebrafish as a model for human disease in scientific research is the main subject of this article.
This article focuses on how Robert Hooke published his results on the law of springs.
The article looks at the building of molecular 'traps' to mimic the surface of a cell.
This article describes a film giving a variety of reasons for studying science.
The article presents the arguments for and against fluoridation of water supplies.
This article looks at experimenting with fluoride toothpaste on eggshells (as a substitute for teeth).
The Nobel prize for physics 2009 rewards scientists who developed optical fibre systems and CCDs.
This Catalyst article describes a film which has been made to provide a range of reasons for students to study science. During the film high profile scientists, writers and teachers describe how science provides the technologies which are used in everyday life, how it can protect the environment and how it protects...
This Catalyst article looks at the use of fluoride in water supplies. The UK health secretary has announced that more water companies would be encouraged to add fluoride to the water supplies. The article looks at why fluoride is added, what the advantages and risks are and why should it be put into water.
This Catalyst article describes an experiment with fluoride toothpaste on eggshells (as a substitute for teeth). Both teeth and eggs contain calcium compounds which can be attacked by acid. When an egg is put in vinegar the shell is weakened by the acid making it soft and more fragile. When teeth are exposed to...
A Catalyst article about the Nobel Prize for physics 2009 winner Charles Kao, who developed optical fibre systems and CCDs which are the basis of most of today's long distance telephone systems. Kao also developed tiny solid state lasers which work for years without failing. The article also looks at the bringing...