Catalyst Volume 16 Issue 2

This issue of Catalyst includes the following articles:

Medical Imaging

Microwaves, infrared, ultraviolet and X-rays are all electromagnetic waves. Some are used to create medical images and others to treat disease. How the electromagnetic spectrum is used by medical physicists to create images of body organs is explored.

Kidneys

The human body has to handle all sorts of variations, balancing its inputs and outputs, if it is to work efficiently. The way the kidney helps to keep things on an even keel is discussed.

Keeping Engines Running Smoothly

This article explores what engine oil is, how it works and how it can be recycled or disposed of. 

Intensive Crop Production Systems

Much of the food that the human beings eat comes from systems in which large numbers of plants or animals are grown under closely controlled conditions, designed to maximise production. This article looks at two intensive crop production systems.

Is Salmon Good for You?

This article investigates if there are any harmful chemicals in farmed fish.

Astronomy - Careers

This article explores careers in astronomy and space science.

Atomic Force Microscope (AFM)

This article looks at using an AFM to image surfaces.

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