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Latest Galleries :

	Flat Earth Nonsense The so-called 'flat Earth doctrine' debunked in a couple of easy, verifiable steps.
	3D Kleinian escape time Images made with an escape time algorithm. All images were created in Ultrafractal.
	Moebius strip and cross-cap Visual proof that a Moebius strip is homeomorphic to a cross-cap with a disc removed.
	Dodecahedral tesselation of the hypersphere A dissection of the 120 cell in twelve rings of 10 dodecahedra. Two sets of six rings form 2 solid interlocked tori. The film starts by showing the 600 cell, the dual of the 120 cell.
	Connected sums of real projective plane and torus or Klein bottle. Visual proof that the connected sum of a real projective plane and a torus , and the connected sum of a real projective plane and a Klein bottle are homeomorphic.
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	This is a non-profit site. Donations go toward large size prints of my work to help me set up an exhibition.

Dimensions wins the Prix d'Alembert.

Posted on 2010-06-21 12:30

The film "Dimensions", that I made together with Etienne Ghys and Aurélien Alvarez, won the "Prix d'Alembert a bi-annual price given by the French Mathematical Society to the best projects in math vulgarization.

The Mandelbox

Posted on 2010-05-28 11:53

I wrote another article (again only in French, sorry!) about this special kind of 3D fractal.
There now is a small new gallery with some images on this subject..

More hyperbolics...

Posted on 2010-04-22 14:32

I wrote an article (only in French, sorry!) about transformations of tilings of the Poincaré disc. There now is a small new gallery with some images on this subject.
All this is based on work by Vladimir Bulatov.

The Mandelbulb fractal and more...

Posted on 2009-12-05 18:28

Just as I got interested in the techniques for creating fractals in 3D, there was a community of enthusiasts who collaborated through the internet in the search for a 3D version of the Mandelbrot fractal.
The result is not quite the holy grail they were looking for, but the object they named the Mandelbulb is quite fascinating.
So here are two new galleries : my collection of general 3D fractals and Mandelbulbs.
As usual, all the images were created in Ultrafractal.
To know more about the Mandelbulb, read this article (in French) or this version (in Italian).

A film on refraction in water

Posted on 2009-09-17 20:27

I just finished a film together with Xavier Caruso, a mathematician working for the French center for scientific research on the effects of refraction in water. The commentary of the film is in French, no other languages available so far.

Something completely different

Posted on 2009-01-28 19:06

Xantox encouraged and helped me to create a visualisation of a canon by Johann Sebastian Bach. This is one of the many ingenious pieces by Bach: this one sounds just as good played from start to end, played from end to start, or played start to end and end to start simultaneously. Here it is.

The hyperbolic chamber

Posted on 2009-01-05 00:10

This is an article about hyperbolic geometry. Even if you don't like math, you might want to look at the pictures.
Try this for instance.
I also updated my article on the Droste effect.

Hyperbolic Escher

Posted on 2008-08-15 00:08

M.C. Escher only made four "Circle limit" drawings. These are tilings in hyperbolic geometry.
I now have a small gallery of 20 more of these: plain tilings in Euclidian geometry by M.C.Escher, transformed into the hyperbolic variety.