Article
Plus Advent Calendar Door #21: How many dimensions are there?
Could there be more than three?
Content about “ Einstein
”
Article
Plus Advent Calendar Door #20: Strings to the rescue?
A possible way of resolving the greatest problem of physics.
Article
Plus Advent Calendar Door #1: Our changing picture of gravity
Open door #1 and scroll through our changing understanding of gravity...
Article
Our changing picture of gravity
To celebrate the recent centenary of the first major test of Einstein's general theory of relativity, we look back over how our picture of gravity has changed.
Article
What is general relativity? Plus asks David Tong
David Tong explains one of the most important equations in science.
Collection
Celebrating general relativity
A hundred years ago, on 25 November 1915, Einstein first presented his general theory of relativity. We explore this famous theory and what it says about the world we live in.
Article
What is a black hole – mathematically?
Pau Figueras explains how Einstein's theories predicted the existence of black holes, and how to describe them mathematically.
Article
What is a black hole – physically?
Small, dark, and very hard to see. This and far more indepth answers to every question you ever wanted to ask about black holes.
Article
What is general relativity?
To celebrate the centenary of the general theory of relativity we asked physicist David Tong to explain the theory and the equation that expresses it. Watch the video or read the article!
Article
Einstein and relativity: Part I
Read about the rocky road to one of Einstein's greatest achievements: the general theory of relativity, which celebrates its centenary this year.
Article
Einstein and relativity: Part II
General relativity, Einstein's rise to international stardom, and his legacy.
Article
Steady on, Einstein
To celebrate the release of more English translations of Einstein's papers, we revisit one of his previously unknown models of the Universe.