2017-01-15 14:51
If you want to learn about general relativity, there are unfortunately few alternatives other than very complicated textbooks or vague dumbed-down popularization that explains nothing... In… Read More
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Nature Loves Math Blog
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What use is math ? Its use is best seen in physics where it's a powerful extension of our thinking and allows us to a better understanding of the laws of nature.
2016-02-14 23:55
The (foolish) purpose of this post is to tackle the concept of tensor, while trying to keep it accessible to the widest audience possible. For the layman (or specialist from another field of… Read More
2016-02-14 23:40
If you are here, then it's because you don't like formulas and complicated calculations too much, but you're still curious about what is a tensor.
So we will do a quick tour of the concept… Read More
2012-07-15 11:42
« Eternity is really long, especially near the end. » Woody Allen (1935 - )
What is infinity ? How to grasp such a concept, by definition so immense that nothing can contain it ?… Read More
2012-02-01 19:21
What is a fraction ? It seems easy to answer this question with the concept of proportion, but we will see that rational numbers possess some quite extraordinary properties.
Cet article Abou… Read More
2011-06-08 19:30
In 1959 was published in the journal Pride of the American College Public Relations Association an essay entitled Angels on a Pin, by Alexander Calandra, professor of physics at Washington U… Read More
2011-02-20 19:35
« The most desperate are the most beautiful lament »
(Alfred de Musset, La nuit de Mai, 1835)
A mathematician’s lament (2002) is an article from Paul Lockhart, a first-clas… Read More
2011-01-22 22:13
A quantity of -2 objects, a marathon runner finishing -3rd, numbers smaller than nothing ?! What do negative numbers mean ? The answer to that question is easy only to those who are used to… Read More
2011-01-05 00:54
The Icosien game is a graph theory game. It was invented in 1857 by Sir W.R.Hamilton (1805-1865), a great mathematician to whom we owe - among other things - a reformulation of mechanics' fo… Read More
2010-12-10 19:44
« Put your hand on a stove for a minute and it will feel like an hour. Sit with a pretty girl for an hour and it will fly like a minute. That’s relativity. »
This famous qu… Read More
2010-11-26 23:53
« God made the integers, all the rest is the work of man » Léopold Kronecker (1823-1891). There is no satisfying definition of the general concept of number. However, lots… Read More
2010-11-14 22:23
« We are like dwarfs on the shoulders of giants. »
This famous metaphor, attributed to Bernard de Chartres, a XIIth century philosopher, reused by Newton and Pascal among others… Read More
2010-10-29 13:16
In its modern interpretation, the principle of relativity is profoundly linked to the group structure of Lorentz transformations.
We will describe the equivalence relation between the two, a… Read More
2006-06-07 11:16
Medium : for amateurs« We are like dwarfs on the shoulders of giants. »This famous metaphor, attributed to Bernard de Chartres, a XIIth century philosopher, reused by Newton and… Read More
2006-06-07 11:16
Neutral : for everyoneLevel 4 of the game "Icosian"The Icosian 1 game is a graph theory game. It was invented in 1857 by Sir W.R.Hamilton (1805-1865), a great mathematician to whom we owe … Read More
2006-06-07 11:16
Medium : for amateurs« Eternity is really long, especially near the end. » Woody Allen (1935 - )The lemniscate, symbol of infinitySource favim.comWhat is infinity ? How to grasp… Read More
2006-06-07 11:16
Easy : for the curiousSundial of Saint Rémy de ProvenceSource : Wikipedia Commons« Put your hand on a stove for a minute and it will feel like an hour. Sit with a pretty girl fo… Read More
2006-06-07 11:16
Medium : for amateursThe Vitruvian man, by Leonardo Da VinciSource Luc ViatourWhat is a fraction ?It seems easy to answer this question with the concept of proportion, but we will see that r… Read More
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