Plus.Maths.org
List by Author: Rachel Thomas
Maths in a minute: Continued fractions 
Continued fractions reveal the good, the bad and the beautiful side of numbers.
Kissing the curve – manifolds in many dimensions 
Following on from our previous article about curvature of lines and surfaces, we now move up to curvature of their higher dimensional equivalent – manifolds.
How does your garden grow? 
The division of plant cells is governed by their shape – just one example of how maths may reveal the fundamental laws underlying biology.
Folding fractions 
Folding a piece of paper in half might be easy, but what about into thirds, fifths, or thirteenths? Here is a simple and exact way for fold any fraction, all thanks to the maths of triangles.
Who's looking at you? 
Observers are, of course, vital in physics: we test our theories by comparing them to our observations. But in cosmology, as Jim Hartle explains, we could be one of many possible observers in the Universe and knowing which one we are is vital in testing our theories.
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.
Writing the unwritable: up-arrow notation 
How to write down unimaginably large numbers using just a few symbols.
