The aurorae are one of the wonders of the natural world. Using some simple apparatus, they and related phenomena can easily be reproduced in the classroom.

Civil engineer John Burland talks about the perils and practicalities of supporting some of the world’s most iconic buildings.

We all know what a kilogram is – or do we? Researchers worldwide are working to define precisely what this familiar unit is.

Contrary to the popular saying, deep waters are often far from still – which is just as well for marine life. Activities using simple water tanks are a good way to find out about the physics at work beneath the waves.