Plus.Maths.org
List by Author: Marianne Freiberger
Something from nothing? 
If you can prove that a statement can't possibly be false, does this mean it's true?
The real numbers and Cauchy sequences 
We take the real numbers for granted, but what are they really?
Stephen Hawking: Milestones of a life in physics 
A quick tour to some of Hawking's most significant achievements.
Cosmic models 
Cosmology has an ambitious goal: to understand the Universe in its entirety. Find out more here.
If our Universe is expanding, then what is it expanding into? 
Since he Universe is all there is, there's nothing for it to expand into. So what does "expansion" mean?
Cosmic peaks 
Some of the Universe's most important secrets are hidden in the shape of a beautiful undulating curve: the power spectrum of the cosmic microwave spectrum. This article explains how.
The cosmic soup 
To understand the why the cosmic microwave background tells us so much about the Universe, you first need to understand what created it: sound waves travelling through the early Universe.
The cosmic afterglow 
The cosmic microwave background is the earliest light we can see in the Universe. So important is this baby picture of the Universe, it's been involved in two Nobel Prizes. Why?
Making penalties fairer 
Is the proposed ABBA rule for penalty shootouts really fairer than the existing rule? Maths shows that it is, and also suggests another, more subtle rule.