Category Archives: What is new

Katherine Goble and the Euler’s Method: Numerical Integration of Differential Equations. Part I.

This blog was inspired by the beautiful 2016 movie Hidden Figures (based on the book of the same name by M. L. Shetterley) which tell the drammatic story of three talented black women scientist that worked as “human computers” for … Continue reading

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The Calculation of the Lattice Energy: The Born-Haber Cycle

My blog in italian on this topics is very popular and for this reason I decided to add an English translation (when I have some free time, I will also translate the text in the Figure and Table). So be … Continue reading

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Modelling Natural Shape II: (Easter) Eggs

When you start with a portrait and search for a pure form, a clear volume, through successive eliminations, you arrive inevitably at the egg. Likewise, starting with the egg and following the same process in reverse, one finishes with the portrait. PABLO PICASSO Easter … Continue reading

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I primi 150 Anni della Tavola Periodica degli Elementi

Il 6 di Marzo del 1869 il chimico russo Dmitri Ivanovich Mendeleyev presento’ alla Societa’ di Chimica Russa, una comunicazione dal titolo La dipendenza delle proprieta’ degli elementi chimica dal peso atomico. In questa storica comunicazione, Mendeleev pesento’ una tabella in … Continue reading

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The Lissajous-Bowditch Curves

Try to glue a small mirror to an end of a bent piece of wire fixed to a stable platform and let the laser beam of a laser pointer reflect on it. Entangled spires of an ephemeral dragon of light will … Continue reading

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Berechnung der Konstante von Madelung

Die gesamte Coulomb-Potentialenergie eines Kristalls ist die Summe der einzelnen Terme der elektrostatischen Potentialenergie zum Laden von Ionen   e und  getrennt nach Entfernung . Die Summe erstreckt sich auf alle im Festkörper vorhandenen Ionenpaare für alle kristallinen Strukturen. Die … Continue reading

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Frosinone and the Ciociaria

I am European of Italian origin. I very proud of my origin but, unfortunately, my carrier put me in a orbit that does intersect my country only during the vacation time. In these close encounters, my landing site is Frosinone. … Continue reading

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