9762 papers found
The paper wants to illustrate scientific instruments in the collections of the Museum of Politecnico di Torino, distributed in various departments in respect of both historical consistency and didactic use.In particular the attention is focused on scientific instruments for electric and electrotechnical measurements.
In this note we illustrate the main features and the mechanism of the so-called Plana's calendar, a perpetual calendar covering a period of 4000 years. The amount of information provided by Plana's calendar is not limited to the simple correspondence day of the week - date, but include movable Christian feasts.
Professor Angelo Mosso (1846-1910) was an Italian physiologist who worked in the University of Turin in the second half of XIX century. His researches were devoted to record and measure vital and mental processes. He invented many instruments and the signals were recorded on blackened paper on kymograph. A quite important aspect of Mosso's laboratory was the quality of the work done by technician Luigi Corino, which offered the possibility of the best utilization of the potentiality of the instruments. In the storage rooms of ASTUT we preserve many of these instruments with documents,...
Creating of Collection of old scientific instruments of Laboratory for experimental psychology, Faculty of philosophy, University of Belgrade is an attempt to preserve a part of history of science in Serbia. There are around 100 instruments in Collection, which mostly came to Belgrade within German war reparations to Kingdom of Yugoslavia, after the World War I. Most of the instruments were made in workshop of E. Zimmermann, precise mechanic of the first psychology laboratory in the world, founded in 1879 by Wilhelm Wundt in Leipzig. They can be grouped on those aimed for examining visual...
A new system dedicated to the measurement of samples with masses in µg range has been installed at CEDAD-(Centre for Dating and Diagnostics) - University of Salento. The set-up can perform 14C measurements by AMS (Accelerator Mass Spectrometry) on gaseous samples thanks to a new hybrid ion source, capable of accepting both solid and gas samples, simultaneously determining stable carbon and nitrogen isotopic ratio by IRMS (Isotopic Ratio Mass Spectrometer). An Elemental Analyzer (EA) combust organic samples and a gas splitting unit (GHI) split the combustion gases to the two instruments. The...
We presents the results of a radiocarbon dating campaign performed on organic samples from three important prehistoric sites of the Porto Badisco territory (Apulia-Southern Italy): Grotta dei Cervi, Cunicolo dei Diavoli and the village of Portorusso. The dating of a human jaw from Cunicolo dei Diavoli has confirmed the funeral use of the cavity during the Copper Age. On the other hand, AMS radiocarbon dating of a fragment of charcoal extracted from a jug in Macchia a Mare/Zinzulusa style from the Grotta dei Cervi, made it possible to clarify the long debated chronology of this facies....
The radiocarbon dates of some equid remains coming from Grotta dei Cervi - Porto Badisco (Otranto, Apulia, south Italy) - that was for a long time frequented in the Prehistory are here presented. The occurrence of wild equids and the new introduction as domesticate in Italy in Prehistorical time has been the subject of intense debate for years. Until a few years ago, wild equids were thought to be extinct at the end of Pleistocene, not surviving after the last glacial period. The discovery from Grotta delle Mura, south Italy, had already questioned the period when the extinction of these...
This work aimed at comprehensively evaluate the potential and effectiveness of natural Deep Eutectic Solvents (DESs) for the extraction of different natural compounds from archaeological samples. We compared the procedure by DESs, which are now emerging as green and sustainable solvents, with the more conventional solvent extraction protocols, which gave measurable yields of lipid extract. The different techniques were applied on the absorbed residues of small samples of a replica pottery vessel after cooking experiments of animal fats. Direct extraction by DES and derivatization proved...
In this occasion we'd like to point out the value of the results obtained by chemical analysis combined to bioarchaeological and traditional archaeological methods in order to determine the organic content of vessels and their implication in funerary ritual. Furthermore, through identification and contextualization of food and drink remains trapped in funerary sets belonging to four tombs of the indigenous necropolis of Cuma (Napoli) dated to the Iron Age, the research has led to the recognition of functional categories of proto-historical pottery.
Within the framework of the BioMAP Project (BIOcostruzioni Marine in Puglia, - P.O. FESR 2007/2013), new acoustic data were acquired in order to identify and locate Coralligenous Habitats (CHs) along the Apulian continental shelf (South Adriatic Sea – Northern Ionian Sea). The analysis of the multibeam echosounder (MBES) dataset allowed us to identify different morphological expression of CHs. Geomorphometric techniques have been applied on the MBES data in order to (1) figure out relationships between the observed morphologies and the associated habitat distribution and (2) quantify the...