François de Dardel

You have discovered enough of myself in reading my homepage. Here a few more things.
	The picture on the left dates from the time Brigitte Bardot was the most acclaimed French actress... Algeciras, Spain. Photo taken by Bernard on our way to the Sahara. On the right, windsurfing in Corsica, 1980.
	This is where I live I grow all sorts of edible and ornamental plants on the terrace.
	Ion exchange If you want to know in what sort of trade I am active, this is a chemical technology called ion exchange. It is mainly used to purify industrial water, but has also many applications in the chemical, mining, petrochemical, pharmaceutical, and food processing industries. I have almost 40 years of experience in ion exchange that I spent advising customers in the entire world, and I offer now consultancy for projects related to industrial water treatment. I can work in four languages: French, English, German, and Spanish.
	Persistence of vision Have you heard about Ray Tracing? No, this is not the latest Californian pop-star, it is a computer technique to create synthetic — or virtual — images. Click on the picture at the left for an example. A serious business. See 175 different pictures I created, with explanations about the whole process of ray tracing, including panoramic pictures. I also made a special chemical page with pictures showing the structure of molecules and crystals.
	Comics (bande dessinée) I am a great fan of comics. I have spent months researching Tintin's cars, Hugo Pratt's Corto Maltese, and I recently added two pages about Ted Benoit, and a general page on my favourite comics artists.
	Hydroculture Another hobby: soilless (hydroponic) culture. Principles and examples. Also in French. My version of hydroculture uses ion exchange fertilization. I have been practicing this type of culture with indoor plants for 40 years.
	La famille Dardel Family history (English & French). Click the picture. Or go to the Dardel Family site. Pictures of the family reunions in Switzerland (1999), Sweden (2002), and Switzerland again (2013). Family documents and links. 420 coats of arms of related families. The August 2013 latest family reunion near Neuchâtel requires a password — that I can supply on request. The Dardel family site also features the complete genealogy of my family, updated quarterly since 1998 (18 generations of Dardels!). An extract of my family tree, in French, shows that I am a descendant of Hugues Capet, king of France, born around 940. This makes a total of 30 generations.
	Left: Winter sports. Picture of the webmaster taken by Caroline in Villars-sur-Ollon. Right: this cartoon was made by Marc Ingrand. Click the small pictures to see them enlarged.
	I changed my good old Vespa for the latest model by Piaggio. The picture on the left with an early Vespa is from the film "Roman Holiday", by William Wyler. In the picture on the right, I am driving the Vespa of my friend Fernando in the region of Zürich, around 1965.
	I also drive occasionnally this Citroën 11 BL Traction Avant, which I bought in 1984. The picture on the left was taken in Bagatelle, a park near Paris, in 2016, the picture on the right at the Mont Saint-Michel in 1984. Click the small images.
	If you have five minutes to spare, why don't you sign my guestbook?

Music: if you have clicked on the violin icon at the top, is J.S. Bach's "The Postillion's horn fugue" (see my music page).

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