scholarly journals The Tabulae Eclypsium by Giovanni Bianchini

Author(s):  
José Chabás ◽  
Bernard R. Goldstein

The Tabulae eclypsium by Giovanni Bianchini (d. after 1469) was part of a larger work, the Flores Almagesti, on mathematical astronomy. In his work on eclipses, which hitherto has not been studied in depth, Bianchini compiled new tables, strictly adhering to Ptolemy’s procedures, and explained their use by means of worked examples to facilitate the task of computers. Bianchini’s works were influential among his contemporaries, especially Peurbach and his student Regiomontanus, with whom Bianchini corresponded. For a variety of reasons, Regiomontanus’ works have eclipsed Bianchini’s. In this article, we present one of Bianchini’s major works, with the aim of restoring a more balanced perspective on 15th-century mathematical astronomy in Europe. Published Online (2021-08-31)Copyright © 2021 by José Chabás and Bernard R. Goldstein Article PDF Link: https://jps.library.utoronto.ca/index.php/aestimatio/article/view/37699/28698 Corresponding Author: José Chabás, Universitat Pompeu FabraE-Mail: [email protected]

2021 ◽  
Vol 52 (1) ◽  
pp. 33-52
Author(s):  
C. Philipp E. Nothaft

A common aspect of the practice-oriented side of pre- and early modern mathematical astronomy was the computation of ephemerides, that is, tables that displayed the daily positions of the planets in a synoptic and calendrical format. Even though medieval Europe was no exception in this regard, the existence of ephemerides in this period and region has gone largely unnoticed, owing both to terminological difficulties and the low survival rate of actual specimens. What exists in significant numbers, however, are texts describing different approaches to constructing ephemerides and computing their various entries. The article demonstrates this by discussing ten such texts dating from approximately the middle of the 12th century to just after 1300. Taken in its entirety, this hitherto neglected corpus provides conclusive evidence against a view according to which ephemerides entered European astronomical practice only in the 15th century.


2009 ◽  
Vol 23 (2) ◽  
pp. 129-138 ◽  
Author(s):  
Florian Schmidt-Weigand ◽  
Martin Hänze ◽  
Rita Wodzinski

How can worked examples be enhanced to promote complex problem solving? N = 92 students of the 8th grade attended in pairs to a physics problem. Problem solving was supported by (a) a worked example given as a whole, (b) a worked example presented incrementally (i.e. only one solution step at a time), or (c) a worked example presented incrementally and accompanied by strategic prompts. In groups (b) and (c) students self-regulated when to attend to the next solution step. In group (c) each solution step was preceded by a prompt that suggested strategic learning behavior (e.g. note taking, sketching, communicating with the learning partner, etc.). Prompts and solution steps were given on separate sheets. The study revealed that incremental presentation lead to a better learning experience (higher feeling of competence, lower cognitive load) compared to a conventional presentation of the worked example. However, only if additional strategic learning behavior was prompted, students remembered the solution more correctly and reproduced more solution steps.


1998 ◽  
pp. 61-62
Author(s):  
N. S. Jurtueva

In the XIV century. centripetal tendencies began to appear in the Moscow principality. Inside the Russian church, several areas were distinguished. Part of the clergy supported the specificobar form. The other understood the need for transformations in society. As a result, this led to a split in the Russian church in the 15th century for "non-possessors" and "Josephites". The former linked the fate of the future with the ideology of hesychasm and its moral transformation, while the latter sought support in alliance with a strong secular power.


Author(s):  
George E. Dutton

This chapter introduces the book’s main figure and situates him within the historical moment from which he emerges. It shows the degree to which global geographies shaped the European Catholic mission project. It describes the impact of the Padroado system that divided the world for evangelism between the Spanish and Portuguese crowns in the 15th century. It also argues that European clerics were drawing lines on Asian lands even before colonial regimes were established in the nineteenth century, suggesting that these earlier mapping projects were also extremely significant in shaping the lives of people in Asia. I argue for the value of telling this story from the vantage point of a Vietnamese Catholic, and thus restoring agency to a population often obscured by the lives of European missionaries.


1970 ◽  
Vol 5 (2) ◽  
pp. 291-301
Author(s):  
Yuyun Sunesti

One of the influential factors in the formation of modern society in the Westernworld and subsequently spread to over the world has been the discovery of printing presswhich can be found in the form of printing method, printing company and print media.Since it was firstly used by Gutenberg in about 15th century AD, information which waspreviously delivered through oral medium with a limited audience, then through a methodof printing can be reproduced in large quantities and can be read by more audience, acrossdistance and time. Printing method which encourages the emergence of large printingcompanies and then print media has contributed in transforming modern cultural life ofsociety.In addition, the advent of the printing industries which has transformed intotransnational corporations as well as the emergence of journals and regular newspapersalso contributes significantly in raising public spaces as a medium for discussion andcritical thinking amidst society. Ultimately, this information media transformation brings achange in the state system which is more open and leads to the emergence of ideas ofnationalism which becomes an important milestone in transforming traditional societiesinto modern societies.


Author(s):  
Peter M. Fischer ◽  
Teresa Bürge ◽  
Dominika Kofel

In 2015 the sixth season of the renewed excavations at the Bronze Age city of Hala Sultan Tekke continued in the compound which was ex­posed in Area 6W in 2013–2014. Further evidence of textile process­ing was found. The results of another ground-penetrating radar (GPR) survey in 2014 indicated a new city quarter west of the former. Exca­vations were initiated there in 2015 and parts of the remains of a large compound were exposed. Two occupational phases, Strata 1 and 2, could be determined, both of which were destroyed in a conflagration. Further excavations were carried out in Area A, 550 m to the east of Area 6W and close to the mosque of Hala Sultan Tekke. In 2014 more than 80 circular anomalies were indicated by our geomagnetic survey supported by GPR. Twelve of them were excavated in 2015. Most of them turned out to be backfilled wells of which the fills mainly date from the 13th and 12th centuries BC (Late Cypriot IIC–IIIA). One of the excavated anomalies is interpreted as an offering pit. The preliminary date according to the pottery is roughly the 15th century BC (Late Cypriot IB).


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