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Fixed or variable chemical valence of a element
A trip to UZBEKISTAN
Walden performs direct conversion between two enantiomers -Second...
Stereochemistry: how the “Walden inversion” is discovered-First Part
An appreciation of the Liebig Museum and Laboratorium
The Bunsen-Kirchhoff Spectroscope at the Arezzo Antiques Fair
The Chemistry of Sugars: the contribution of Heinrich...
Louis Pasteur : his life
The Stereochemistry of Crystals in a Wine Barrel
Year 1607: the first representation of a chemical...
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  • AmericaTravel

    Magellanic penguins of Magdalena island

    by Roberto Poeti 3 December 2017
    3 December 2017

    The Magdalena island and Magellanic penguins A stage of a journey in the far southern Chilean Patagonia is the hike in the small Magdalena Island, a nature reserve. The island has a length of 2 km and a maximum width of 500 metres.  Is in the middle of the Strait of Magellan and is located about 30 km northeast of …

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  • History of chemistry

    The D.I.Mendeleev Home Museum in St. Petersburg

    by Roberto Poeti 15 November 2017
    15 November 2017

    The Mendeleev Home Museum at the University of St. Petersburg The article contains a collection of photos and documents translated from Russian, kept preserved in Mendeleev Home Museum at the University of St. Petersburg. Many thanks to Marina Bekreneva for translation of original documents.

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  • History of chemistry

    Carl Scheele : the discoverer of oxygen

    by Roberto Poeti 1 November 2017
    1 November 2017

    Carl Wilhelm Scheele I rediscovered the great scientist Carl Scheele, a contemporary of Lavoisier, during a trip that I made in Sweden, and in particular in Stockholm. It is first necessary to say a few words about the village of Skansen. Stockholm is a beautiful city built on many islands, one of which, known as Kungliga Djurgarden (Royal Garden), the …

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  • AmericaTravel

    The Perito Moreno Glacier in Argentina

    by Roberto Poeti 2 August 2017
    2 August 2017

    How is the Perito Moreno glacier The Perito Moreno Glacier is a glacier located in the Los Glaciares National Park in southwest Santa Cruz Province, Argentina. It is one of the most important tourist attractions in the Argentinian Patagonia . The 250 km2 (97 sq mi) ice formation, and 30 km (19 mi) in length, is one of 48 glaciers …

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  • ChinaTravel

    The Great Wall of China

    by Roberto Poeti 30 July 2017
    30 July 2017

    The great wall covered in snow It is estimated that the length of the great wall is about 9000 kilometers. It was built from the 3rd century BC (about 215 BC) by Emperor Qin Shi Huang of the Qin dynasty.   It’s the same Emperor to whom we owe the so-called terracotta army in Xian. Sections of the great wall were …

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  • AmericaTravel

    The Skyscrapers of New York

    by Roberto Poeti 28 July 2017
    28 July 2017

    Many trips For the first time this year I visited the United States. I began traveling at age 17, first alone, then, after the age thirty, in company with my wife. We went away for long periods with our backpacks and without programming . So we have known the countries that today would not be possible to visit as we …

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  • ChinaTravel

    A rich Chinese abode : The Courtyard

    by Roberto Poeti 12 June 2017
    12 June 2017

      Some insight into the Courtyard (Siheyuan) The composition of the courtyard was the base model for residential buildings, palaces, temples,monasteries, family businesses and Government offices. This urban model dates back to the first part of the Western Zhou Period, therefore a history of over 2000 years. The Courtyard could be formed by one or more yards. The home of …

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PROF. ROBERTO POETI

Hi, my name is Roberto Poeti , a former teacher . I decided to create this blog to continue the dialogue on Chemical Scienze, its history and its teaching and to share the experiences of my trips I’ve done now and in the distant past.
“Even Chemistry is a beautiful journey into the knowledge of the matter“

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Recent Posts

  • Fixed or variable chemical valence of a element
  • A trip to UZBEKISTAN
  • Walden performs direct conversion between two enantiomers -Second Part
  • Stereochemistry: how the “Walden inversion” is discovered-First Part
  • An appreciation of the Liebig Museum and Laboratorium

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Roberto Poeti Chimica
  • History of chemistry
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