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Joyful duo
(BWV 32)

en français

François de Dardel

These pages are intended to offer openings to the world and to the cyberworld, and to share ideas, interests, experience and culture.

Ray-tracing picture New and updated

The latest changes of these pages
(opens in a new window)

This month, see ray tracing and Art Déco posters.



Site map

Overview and easy access to all pages.

Heartbeat Reactions

In French or English or both, occasionnally in German, one in Europanto. Today they call this a "blog" but I don't keep a real diary. Politics, Terrorism, Environment, Consumerism.
Several articles on food and environment as well as many other topics. See the list of articles spanning twenty years of reactions.

Read what Vaclav Havel wrote about politics.

Eye Wet floor!

Opinions. My view of some aspects of the world (not very politically correct).

Mouth Languages

Expressions to avoid (in French).
And a little English and German.
See my page about faux-amis;
read a film critique in Europanto...
enjoy the intricacies of English and French Pronunciation (examples in French) and full page in English with audio examples;
read what Larry King and George Orwell say about trendy language; and discover examples of "expressions xyloglottes" (this is in French).

Book Literature

A few texts in various languages.

Verse from my favourite poet, Jean Pellerin, and strophes from other, better known writers (mostly French, some in German and Spanish).

La Fontaine (French). 30 illustrated fables and the complete list.

Mercurio seduto Art

My (small) virtual museum. Renaissance and classical paintings, Greek sculpture, 20th Century art, Hermitage (St Petersburg) sculptures and paintings.

Three painters of my family : Fritz and Nils von Dardel, and Valdo Barbey.

Violin Music

Now with 190 MIDI files (mostly classical) from 63 composers, and links to more.
Also with the complete BWV
as well as Mozart's Köchelverzeichnis and Vivaldi's RV.

Descartes Le bon sens

Gesunder Menschenverstand

Vgl.: Goethe

New Ray-tracing

One of my hobbies: realistic virtual images I created using "constructive spatial geometry" with POV. 210 pictures, of which 45 made from a single description file: see my house, inside and outside, with panoramic interactive views.
Also, several other subjects including 30 organic molecules and crystals in 3D.

Portrait Photographs of people and more

Showing several sets (about 800 picts in total), with music if you wish.

Ion exchange resin Ion exchange

This is a technology used for water treatment and other applications. I have spent 38 years of my professional life studying and teaching it, and am available today for consulting jobs.

Several pages on the ion exchange technology.

Lancia Les autos de Tintin

200 cars from Tintin albums, with corresponding photos of the real automobiles, a short quiz and a page about variations between different versions of the albums.

Corto Maltese by Hugo Pratt Corto Maltese

Fascinating Hugo Pratt... 110 pictures.

See also: other comics (my favourite artists).

Robinet Drinking water

Composition and quality. Bottled or tap water?

En français : Eau potable

Windmill Energy

Energy, facts and perceptions. Is biomass a good solution?

Saint-Blaise in Switzerland Dardel family pages

A set of pages for all Dardels in the Universe (!), with pictures of family reunions and several documents. See the 2013 anniversary.
Also a full genealogy of the family (5800 entries... ), 466 coats of arms, and a brief family history.

Coffee Guest book

If you have 5 minutes, why don't you sign my guest book?

Martini Martini Automobiles

They were built in Saint-Blaise (Switzerland) between 1903 and 1934. More than 130 images.

Monastery A Russian Cruise
June 2002

Voyage on the rivers and lakes of Karelia.

Tintin reading the news Other links

Self-explanatory. Some offer access to arts and culture, others give you useful pratical information.

Dardel About myself

Only for the curious.

Holi, Mumbai Holi

Spring festival, India (1 picture only)

Humour Humour

For fun

Hydroculture Hydroculture

Principle and examples

Cuillers Wanted!...

... I am looking for these objects.

Piano Season's greetings
(5 Dec 2020)

I wish you a new year full of peace and happiness!


The principles of heraldry (in French) and a glossary of 600 terms in 5 languages (FR, DE, EN, ES, IT).

English This site is mostly in English and French, many pages in both languages. Small sections in German or Spanish.
All remarks, criticism and suggestions about my web pages are very welcome.
Français Ce site est surtout en anglais ou français, avec de nombreuses pages dans les deux langues. Quelques recoins sont aussi en allemand ou en espagnol.
Toutes remarques, critiques et suggestions sur ces pages sont les bienvenues.
Deutsch Diese Seiten sind hauptsächlich auf Englisch oder Französisch, manchmal in beiden Sprachen. Kleine Abschnitte gibt es auch auf Deutsch und Spanisch.
Bemerkungen, Kritik und Empfehlungen über diese Seiten sind jederzeit willkommen !
Español Este sitio es principalmente en inglés y francés, con varias páginas en ambas lenguas. En algunos rincones se encuentran páginas en alemán y español.
Qualquier comentario, crítica o sugerencia son muy bienvenidos.

You can write to me
(New address April 2018)

This icon (coat of arms of my family) is on most of my pages.
Clicking on it will always return you to this home page.

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