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Maths in a minute: Dark matter
... Physicists believe that around 82% of all the matter in the Universe is dark matter . It doesn't interact with light (to be ... do we know it's there? To explain, here's an extract from a Plus article by Martin Rees . The magnificent spiral ...
Marianne  5 Jun 2018  18:45  0 comments

Maths in a minute: Graphs and the degree sum formula
... This is an example of a graph. In maths a graph is what we might normally call a network. It consists of a ...
Marianne  10 May 2018  13:54  0 comments

The maths of randomness: universality
... with probability theory . (You can read more in the previous article .) And there are two guiding principles in ... about fluid mechanics in Going with the flow and Maths in a minute: The NavierStokes equations .) It's a similar story ...
Rachel  10 May 2018  13:43  0 comments

Material maths
... we use, the cars that we drive, the aeroplanes that we fly in and the houses that we live in are all made up of materials. Modern ... In this series of articles Chris Budd looks at the maths of materials, in particular meta materials which can be designed to ...
Marianne  17 Apr 2018  13:55  0 comments

Maths in a minute: Compound interest and e
... that it's connected to one of the most important constants in maths: the number . To see the connection, suppose you borrow at an ...
Marianne  28 Mar 2018  11:41  0 comments

Maths in a minute: The brazil nut effect
... This article is part of our package on the maths of materials, which is based on a talk in Chris Budd's ongoing Gresham College lecture series . You can see a video ...
Marianne  16 Mar 2018  15:41  0 comments

Happy e day!
... the first four digits of one of the most important numbers in mathematics, ... wonderful people of Imaginary . Enjoy! Maths in a minute: Compound interest and e — Compound interest is the ...
Marianne  27 Mar 2018  14:24  5 comments

Maths in a minute: The two envelopes problem
... for HLFF (c) Pressefoto Kreutzer Plus is currently in Heidelberg, Germany, visiting the Heidelberg Laureate Forum 2017 . The Forum gives young researchers in maths and computer science the chance to meet some of the best minds in their ...
Marianne  13 Mar 2018  16:19  33 comments

Maths in a minute: Variance
When faced with a list of numbers we often feel the urge to compute its average to get a rough ... salaries and the vertical axis of measuring how many people in a population receive the corresponding salary. The red curve has a smaller ... (the reason we square it is that we're only interested in the size of the difference and not whether it's positive or negative). Now ...
Marianne  7 Feb 2018  13:45  1 comment

Maths in a minute: The graph isomorphism problem
... Networks are everywhere. We encounter them every day, in the form of the internet, or the social, transport and utility networks we depend upon. Mathematically, a network is an example of a graph : a collection of nodes (also called ...
Marianne  12 Dec 2017  14:33  0 comments