Catalyst Volume 17 Issue 3

This issue of Catalyst includes the following articles:

Eyes

Human beings depend on their eyes to provide them with information about their surroundings. This article examines the basic functioning of the eye and at what can be done to maintain function when something goes wrong.

It's a Material World

This article looks at working in materials science and engineering.

Invisible Rays

When the astronomer William Herschel discovered Uranus in 1781, he became the first person since ancient times to identify a new planet. However, he is also known as the ‘accidental’ discoverer of infrared radiation. Is this a fair description? Can such discoveries really happen by accident?

Down House

This article looks at Down House - the home of Charles Darwin.

Electrical Safety

What causes faults in electrical appliances and the wiring installations in homes, and why do people receive electric shocks? How can regulations reduce the risk of electrical faults and electric shocks?

Salt

Human beings need salt (sodium chloride) in their diets to survive, but too much can be toxic. Where does salt come from, and what is it used for?

Evolution in the News

This article examines the evidence for evolution and considers the ongoing conflict between scientists and creationists.

Damian Murphy: Music Technologist

This article introduces Damian Murphy and looks at his career as a music technologist.

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