Search results for "Lile"

Galileo, God and Mathematics

2005

This chapter explores the relationship between God and the mathematics of Galileo. In the early modern era, the mathematical sciences began to produce potential instruments of power and to supply technically and socially valuable knowledge—for use in engineering, administration, and social control. This ability to produce useful knowledge and potential instruments of power became the critical basis for the existence of the mathematical sciences. In discussing Galileo's thoughts about mathematics and the mathematical sciences, it is necessary to keep in mind that he did not codify them and that he worked—as did many early modern scholars—with conflicting epistemologies. Furthermore, there is…

Cohomology, central extensions, and (dynamical) groups

1985

We analyze in this paper the process of group contraction which allows the transition from the Einstenian quantum dynamics to the Galilean one in terms of the cohomology of the Poincare and Galilei groups. It is shown that the cohomological constructions on both groups do not commute with the contraction process. As a result, the extension coboundaries of the Poincare group which lead to extension cocycles of the Galilei group in the “nonrelativistic” limit are characterized geometrically. Finally, the above results are applied to a quantization procedure based on a group manifold.

Performance assessment of PPP surveys with open source software using the GNSS GPS-GLONASS-Galileo constellations

2020

In this work, the performance of the multi-GNSS (Global Navigation Satellite System) Precise Point Positioning (PPP) technique, in static mode, is analyzed. Specifically, GPS (Global Positioning System), GLONASS, and Galileo systems are considered, and quantifying the Galileo contribution is one of the main objectives. The open source software RTKLib is adopted to process the data, with precise satellite orbits and clocks from CNES (Centre National d&rsquo

Origin of Blue Sapphire in Newly Discovered Spinel–Chlorite–Muscovite Rocks within Meta-Ultramafites of Ilmen Mountains, South Urals of Russia: Evide…

2019

Blue sapphire of gem quality was recently discovered in spinel&ndash

The unnoticed northward expansion of Najas marina subsp. armata (Hydrocharitaceae) in the Mediterranean area: an effect of climate change?

2022

Recent reports of Najas marina L. (Hydrocharitaceae) from Sicily have been interpreted as a confirmation of its presence on the island, where it was earlier mentioned in the 1800s. However the recent finds do not represent “N. marina” (currently N. major All.) but N. marina subsp. armata Horn (= N. delilei Rouy), a different taxon, previously not recorded from Sicily. According to those reports and several new finds presented here, it appears to be invading reservoirs and lakes in southern Sicily and seems to be naturally expanding its range. Climate change is suggested as possible cause of this shift. The same trend appears to be taking place across the whole N Mediterranean area, from Por…

MUOVERSI AI MARGINI DELL'IGNOTO. PER UNA LETTERATURA COME FONTE DI CONOSCENZA

2018

Il saggio indaga i modelli del sapere scientifico nello specifico delle opere di Galileo Galilei, Il Saggiatore, in particolare, analizzandone il registro espressivo, lo stile, le formule metaforiche che rivelano uno stile e un modello di pensiero. La prosa scientifica di Galilei, elogiata da Leopardi, diviene paradigma di chiarezza e di lucidità del discorso argomentativo e saggistico della prosa italiana

Intersezioni. Percorsi attraverso i saperi. Scienza ed etica

2012

"Intersezioni. Percorsi attraverso i saperi" sono dei percorsi interdisciplinari inseriti nel "Nuovo manuale di letteratura" di Luperini, Cataldi, Marchiani, Marchese, che vengono introdotti per potenziare il lavoro di preparazione in vista dell'esame di Stato della Scuola Secondaria di 2° grado. Tali percorsi intrecciano testi letterari e non letterari (compresi documenti iconografici e fotografici) e forniscono dei laboratori di scrittura per la produzione del saggio breve, del tema storico o di ordine generale. In particolare, questo percorso è dedicato al rapporto fra scienza, filosofia e morale nel periodo compreso fra la Rivoluzione copernicana (e la nascita della scienza moderna nel …

Galilée, une soûlographie

2019

Galilée, un signe à tout faire

2014

Que l’on souhaite faire oeuvre de science, prévaloir une opinion, susciter une émotion, valoriser un produit, la vie et l’oeuvre du mathématicien, physicien et astronome italien Galileo Galilei s’acommodent de bien des manières. Comment cette trivialité manifeste participe-t-elle du « mythe » ?

De la transmission à l'altération : Galilée comme carrefour.

2013

International audience; La transmission culturelle est régulièrement considérée comme un phénomène explicitement "continuiste". Or c'est aussi par l’absence, la substitution, le détournement, l’erreur et l’accident que peuvent survivre et prospérer formes et idées.En effet, les "discontinuités", toujours relatives aux milieux, aux acteurs, aux formes et genres... créent des opportunités de communication, de signification, de transmission.Cette position est défendue à partir d'un cadre de réflexion émergeant – la trivialité des êtres culturels – qui permet d'examiner le rôle fondamental des communications quotidiennes dans la préservation de patrimoines matériels et idéels, participant de l’…