This issue of Catalyst contains the following articles:

The Most Accurate Thermometer in the World

This article looks at how a highly accurate thermometer measures temperatures by finding the speed of sound in a gas.

The mission of the Natural Environment Research Council (NERC) is to gather and apply knowledge, improve understanding and predict the behaviour of the natural environment and its resources. It was established in 1965.

NERC funds and manages research and training in earth system science, advancing knowledge...

Practical Action is a development charity which uses simple technology to fight poverty. The learning resources in this collection look at how issues such as climate change and the need for renewable energy can be tackled. The resources contain background information, teachers' packs, classroom activities, stimulus...