string theory

Over the last few decades physicists have been developing a curious idea. Perhaps the world we inhabit is a hologram, lacking a crucial feature of the world as we perceive it: the third dimension.

This collection of articles looks at one of the biggest problems in modern physics and at research that aims to solve it.

More than you think! In this episode of our podcast we talk to theoretical physicist David Berman to find out more...

Could there be more than three?

A possible way of resolving the greatest problem of physics.

If, as string theory suggests, the world is made of strings, then what does that mean for a geometry of points? Find out more in this video.

The holy grail for 21st century physics is to produce a unified theory of everything — M-theory is a prime candidate. Find out more in this video.

At the heart of modern physics lurks a terrible puzzle: the two main theories that describe the world we live in just won't fit together.

There are many theories in particle physics that cannot be tested in experiments. Does this make it unscientific? This debate, featuring one of our favourite theoretical physicists, David Tong, explores the question.

Could the world be simpler than our senses suggest?

Interalia is a show by Turner Prize winning artist Grenville Davey and theoretical physicist David Berman.

"[String theory] has led us in strange directions that we couldn't conceive of; it's revealed depths of mathematical structure that we couldn't have anticipated". Watch a video interview with Professor Michael Green, winner of the 2014 Fundamental Physics Prize.