Catalyst Volume 24 Issue 2

This issue of Catalyst contains the following articles:

The World of Parasitic Plants

This article looks at types of parasitic plants and how they derive their nutrients from the root systems of other plants.

What is Geothermal Energy?

This article looks at how geothermal energy is derived from hot rocks below the Earth's surface and can be used for heating or to generate electricity.

Sonic Husbandry

Music technologist Jez Wells explains how electronic systems can produce sounds which merge the qualities of different musical instruments.

Alfred Russel Wallace

This article looks at the work of Alfred Russel Wallace who developed a theory of evolution in parallel with Charles Darwin.

Talkative Microbes

This article explores how microbes communicate and how, by growing two different microbes together, it is possible to discover new substances which may be useful in medicine.

Making Ice Cream Without a Freezer

This article describes how to make ice cream using a mixture of ice and salt, without the need of a freezer.

Focus on Palladium

This article explains the properties of the metal palladium, and how it can be used for a vast array of objects.

What is a Scientific Conference?

This article reports from the 37th meeting of the International Union of Physiological Sciences (IUPS).

Printing in Three Dimensions

This article looks at 3D printing, a new technology which is rapidly finding applications.

Catalyst is a science magazine for students aged 14-19 years. Annual subscriptions to print copies of the magazine can be purchased from Mindsets.

Resources

Talkative Microbes

This Catalyst article explores how microbes communicate and how, by growing two different microbes together, it is possible to discover new substances which may be useful in medicine. Microbial communication happens by small bioactive molecules which the cells release into and receive from the environment. In this...

Making Ice Cream Without a Freezer

This Catalyst article describes how to make ice cream using a mixture of ice and salt, without the need of a freezer. Detailed instructions and an explanation of how it works is included, as well as a link to a video showing how the process can be sped up using liquid nitrogen.

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Focus on Palladium

What do dental fillings, catalytic converters, mobile phones and jewellery have in common? They all make use of the metal palladium. This Catalyst article explains the properties of this metal, and how it can be used for a vast array of objects.

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What Is a Scientific Conference?

With so many research groups across the world, it can be difficult for scientists to keep on top of the latest developments and findings. As well as publishing in journals (such as Nature or Science), researchers communicate their results at scientific conferences. These range in size from small, specialist...

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