Marianne Freiberger

Article

Playing billiards on doughnuts

The paths of billiard balls on a table can be long and complicated. To understand them mathematicians use a beautiful trick, turning tables into surfaces.
Article
Billiards

Chaos on the billiard table

If you thought that billiards was a harmless game to play in the pub, think again. It's a breeding ground for chaos!

News story

Easy as 1, 2, 3?

The natural numbers, 1, 2, 3, 4, ..., are nice. So what could be nicer than discovering interesting patterns within them?
Article

Polar power

Like spirals and flowers? Then you'll love polar coordinates and the pretty pictures they allow you to draw!
Article

Going with the flow

By the 1970s physicists had successfully tamed three of the fundamental forces using a sophisticated construct called quantum field theory. The trouble was that the framework seemed to fall apart when you looked at very high or very low energy scales. So how could these be thought of as valid theories? It's a question physicists are still grappling with today.
Article

Strong but free

The early 1950s were an experimental gold mine for physicists, with new particles produced in accelerators almost every week. Yet the strong nuclear force that acted between them defied theoretical description, sending physicists on a long and arduous journey that culminated in several Nobel prizes and the exotic concept of "asymptotic freedom".