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Catalyst Volume 21 Issue 4
This issue of Catalyst includes the following articles:
Archaeologists are using many aspects of science to identify the remains of soldiers who were killed in the First World War.
This article explains how meteorologists use a variety of techniques to seed clouds and induce rainfall.
A practical experiment to make water vapour condense so that it forms a 'cloud in a bottle'.
The study of the wavelengths of light which enables scientists to identify the substances present in the source.
Try This - Make Your Own Spectrometer
A description of how to make a basic spectrometer to analyse light, using a CD to split the light.
This article looks at the use of plant cells to generate electricity via photosynthesis.
The article describes a new design of thermostatic controller which saves energy by learning the consumer's pattern of usage.
This article investigates how ants find their way around. It also explains how the methods for conducting the research are devised and tested.
Tiny Particle, Giant Detector - Neutrinos
The article looks at a giant spectrometer which is being used to measure the mass of the tiny particles called neutrinos.
Catalyst is a science magazine for students aged 14-19 years. Annual subscriptions to print copies of the magazine can be purchased from Mindsets.
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Try This - Make Your Own Spectrometer
A Catalyst article describing how to make a spectrometer to analyse light by using a CD to split the light and some other household items for the rest of the equipment.
This article is from Catalyst: Secondary Science Review 2011, Volume 21, Issue 4.
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Biophotovoltaics
A Catalyst article looking at the use of plant cells to generate electricity via photosynthesis. This branch of science is called biophotovoltaics. The Sun is the ultimate source of energy for almost all life on Earth and harnessing this energy is one of the great scientific and technological challenges....
Energy Control
A Catalyst article about the efficient use of heating systems. Many people complain of being too hot or cold. Coming soon are a new generation of intelligent heating controls which can learn how people live, and then deliver heating efficiently when and where they need it. These devices are known as Wattboxes and...
How Smart Is an Ant?
A Catalyst article about ants. A colony consists of hundreds, even thousands, of ants working diligently and cooperatively, perhaps to kill and carry a large prey item, build a large nest structure or develop and use road-like networks for foraging. Collectively, colonies of social insects can do amazing things and...