Jean-François COLONNA

jean-francois.colonna@polytechnique.edu

CMAP (Centre de Mathématiques APpliquées) UMR CNRS 7641, Ecole Polytechnique, CNRS, 91128 Palaiseau Cedex, France

france telecom, France Telecom R&D

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(CMAP28 WWW site: this page was created on 01/25/2001 and last updated on 01/28/2014 15:12:34 -CET-)

- 2837 different people were visiting this site on 09/28/2004.
- See
*A Virtual Space-Time Travel Machine*in the 1997 March-April issue of*IEEE Computer Graphics and Applications*(About the Cover,*The Art of Science*, page 4-5, Volume 17, Number 2). - See the picture on the cover of 1998 issues of The Visual Computer.
- See the gigantic -40mx20m- Lorenz attractor at
*La Cite des Sciences et de l'Industrie*in Paris in order to celebrate the Year 2000 (currently, the biggest painting in Paris?). Unfortunately, it was dismantled in late 2001 (see the original picture ). - See the following pictures in the new
*Images*exhibition at*La Cite des Sciences et de l'Industrie*in Paris (inaugurated on 06/28/2001):

- See the following pictures in the
*Le Paris du Futur*exhibition at*La Galerie de l'ADAC*in Paris (inaugurated on 03/21/2002):

- See the following pictures in the exhibition at
*Le Centre Culturel Rene Cassin*in Dourdan (inaugurated on 06/01/2002):

- See the following pictures in the exhibition -with Denis Fadier- at UNESCO on the occasion of the celebration of
*World Science Day for Peace and Development*in Paris (inaugurated on 11/12/2002):

- See the following pictures in the exhibition at ENST Bretagne in Brest (inaugurated on 04/02/2003):

- See the following pictures in the exhibition at the Library of the Ecole Polytechnique in Palaiseau (inaugurated on 06/10/2004):

- 2004: the eightyth birthday of Benoît Mandelbrot:

- A private collection in Paris:

- See the following pictures in the exhibition at the Institut Henri Poincare in Paris (inaugurated on 01/22/2005):

- World Year of Physics 2005, see the following pictures in two exhibitions at the Ecole Polytechnique inaugurated
on 05/11/2005
and
on 10/07/2005:

- See the following pictures in the Auguste Detœuf Room at the Ecole Polytechnique (inaugurated on 09/15/2005):

- See my pictures on the Bruxelles City Hall during the "
*Math En Rue*" festival on 10/16/2009:

- See the following pictures in the exhibition at the Atelier Z (fondation Peugeot) in Paris (inaugurated on 10/22/2009):

- See my pictures (as well as the Patrice Jeener's ones) in an exhibition at the Ecole Polytechnique on september 2010:

- See my pictures during the tribute to Benoît Mandelbrot (03/17-18/2011):

- See my pictures in the exhibition at the Library of the Ecole Polytechnique in Palaiseau on september 2013 (inaugurated on 08/26/2013):

[more information]

### Mathematics and Physics:

### Mathematics and Nature:

### Mathematics and Encounters:

### Mathematics and Creation:

See the whole exhibition:

- See my anaglyphs in the exhibition at
*La Nuit desChercheurs 2013*at the Ecole Polytechnique in Palaiseau on 09/27/2013:

- Anaglyph -blue=right, red=left- of a tridimensional representation of a quadridimensional Calabi-Yau manifold.
- Anaglyph -blue=right, red=left- of a tridimensional fractal structure.
- Anaglyph -blue=right, red=left- of a tridimensional fractal structure -the space-time foam?-.
- Anaglyph -blue=right, red=left- of a fractal Möbius strip.
- Anaglyph -blue=right, red=left- of a fractal Klein bottle.
- Anaglyph -blue=right, red=left- of a fractal sphere.
- Anaglyph -blue=right, red=left- of a tridimensional filamentous fractal structure.
- Anaglyph -blue=right, red=left- of a fractal torus.
- Anaglyph -blue=right, red=left- of a fractal 3-foil torus knot.
- Anaglyph -blue=right, red=left- of a fractal 5-foil torus knot.
- Anaglyph -blue=right, red=left- of a fractal 7-foil torus knot.
- Anaglyph -blue=right, red=left- of a fractal hypercube.
- Anaglyph -blue=right, red=left- of a fractal-fractal tree.
- Anaglyph -blue=right, red=left- of an hypercube.
- Anaglyph -blue=right, red=left- of the tridimensional Hilbert Curve -iteration 3-.
- Anaglyph -blue=right, red=left- of the tridimensional Hilbert Curve -iteration 4-.
- Anaglyph -blue=right, red=left- of an artistic view of a tridimensional Sierpinski 'carpet' computed by means of an 'Iterated Function System' -IFS-.
- Anaglyph -blue=right, red=left- of the Lorenz attractor.
- Anaglyph -blue=right, red=left- of a pseudo-quaternionic Mandelbrot set (a 'MandelBulb') -'the children round' or 'the consciousness emerging from Mathematics'- -tridimensional cross-section-.
- Anaglyph -blue=right, red=left- of a close-up on a pseudo-octonionic Mandelbrot set (a 'Mandelbulb') -tridimensional cross-section-.

- On 02/28/1996, the McKinley Group (MagellanInternetDirectory)
gave
*A Virtual Space-Time Travel Machine*a "3-star" overall rating. - On 04/11/1996, NetCarta Corporation
gave
*A Virtual Space-Time Travel Machine*a "Great Site" overall rating. - On 09/18/1996, the Central Registry
gave
*A Virtual Space-Time Travel Machine*a free use of its Registration Service. - On 07/23/1998, the Links2Go Key Resource
gave
*A Virtual Space-Time Travel Machine*an award in the Animation topic. - On 07/11/2000, the Links2Go Key Resource
selected
*A Virtual Space-Time Travel Machine*as a "Key Resource" in the Fractals topic. - Since 11/23/2001, Only-Yellow-Pages global online directory
reference
*A Virtual Space-Time Travel Machine*. - The
*Y2K bug*.

[more information in english, more information in french] - Do you believe that Real Numbers exist for a computer and that floating point computations are safe?

[more information] - Do you believe that floating point computations using
**Java**are*write once, run everywhere*?

[more information in french] *Droit de réponse*to*Science et Avenir*-en français/in french-.

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