Laboratory experiments on the phenomenon of combustion. In the 2010-2011 school year, among the chemistry laboratory exercises performed by the students, one was dedicated to the study of the phenomenon of combustion. Among the reports submitted by the students I chose one in particular. I present it below in PDF format. Reading it is not only instructive but also very …

The exploration of the western fjords of Norway. The following presentation contains the images of a multi-stage journey between the western and south-western fjords of Norway by bus but above all by boat. Pictures come from: From the Sognefjord fjord. It is the longest fjord in Norway, extending for 204 km, it is characterized by unspoiled nature, mountains and waterfalls. …

The village of Flam in the Sognerfjord fjord. One of the most beautiful excursions that can be done in the fjords of Norway is the one that has the pretty little village of Flam as its epicenter. It sits at the top of the Aurlandsfjorden branch of the great Sognerfjord. The country can be reached by boat from the beautiful …

Many places of worship. I did not imagine that Japan possessed such a large number of religious testimonies. In the big cities dozens of temples scattered among the many neighborhoods, open to worship, each with its garden and its small cemetery of tombstones and volcanic stone stems accompany us on walks to discover the life of the city. Elderly ladies …

The Liebig’s Institute of Chemistry in Giessen After a visit to the Liebig Museum of Giessen in Germany, I decided to put the images and videos I made on my site, together with the information I found in the Museum’s publications, but above all that I gathered from my expert guide, such as Prof Manfred Kroeger who accompanied us during …

Presentation of Lavoisier’s Memoir : “EXPERIMENTS ON ANIMAL RESPIRATION” – year 1777 The main way to introduce the history and epistemology of chemistry into teaching is to use the memoirs, essays and pages of texts written by the protagonists of chemistry as a fundamental tool. I translated into english from French, I think for the first time, the memoir that …

A trip to the island of Bali forty years ago Our trip to the island of Bali in Indonesia was one of the most interesting and intense experiences we had during our tours around the world. The trip took place over forty years ago. The island was considered one of the most exotic destinations, but tourism, which at that time …

Barong dance in a remote Bali village A trip made to Indonesia also took us to the island of Bali. It was 1980, about forty years have passed. Western tourists were rare.  The only presences were those of many young Australians who filled the town Kuta to ride the waves. They remained there, attracted only by the motion of the …

Carl Scheele’s pigments The intense experimental activity of Carl Scheele (1742-1786) embraced the fields of organic and inorganic chemistry, obtaining incredible results in his short life (he died at the age of forty), having the back rooms of the pharmacies where he worked. There are Scheele’s discoveries that have had a great impact, such as the discovery of oxygen on …

An educational proposal for the chemistry laboratory with historical experiences This didactic proposal for the chemistry laboratory is intended for a basic chemistry course. The subject of the research is Prussian blue, the synthesis of Prussian blue is present on many web pages, in various versions. What they have in common is the simplicity of execution. To the synthesis of …