Scienziati E Tecnologi Marchigiani Nel Tempo
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Hunting the White Elephant. When and How Did Galileo
MAX-PLANCK-INSTITUT FÜR WISSENSCHAFTSGESCHICHTE Max Planck Institute for the History of Science PREPRINT 97 (1998) Jürgen Renn, Peter Damerow, Simone Rieger, and Michele Camerota Hunting the White Elephant When and how did Galileo discover the law of fall? ISSN 0948-9444 1 HUNTING THE WHITE ELEPHANT WHEN AND HOW DID GALILEO DISCOVER THE LAW OF FALL? Jürgen Renn, Peter Damerow, Simone Rieger, and Michele Camerota Mark Twain tells the story of a white elephant, a present of the king of Siam to Queen Victoria of England, who got somehow lost in New York on its way to England. An impressive army of highly qualified detectives swarmed out over the whole country to search for the lost treasure. And after short time an abundance of optimistic reports with precise observations were returned from the detectives giving evidence that the elephant must have been shortly before at that very place each detective had chosen for his investigations. Although no elephant could ever have been strolling around at the same time at such different places of a vast area and in spite of the fact that the elephant, wounded by a bullet, was lying dead the whole time in the cellar of the police headquarters, the detectives were highly praised by the public for their professional and effective execution of the task. (The Stolen White Elephant, Boston 1882) THE ARGUMENT In spite of having been the subject of more than a century of historical research, the question of when and how Galileo made his major discoveries is still answered insufficiently only. It is mostly assumed that he must have found the law of fall around the year 1604 and that only sev- 1 This paper makes use of the work of research projects of the Max Planck Institute for the History of Science in Berlin, some pursued jointly with the Biblioteca Nazionale Centrale in Florence, the Istituto e Museo di Storia della Scienza, and the Istituto Nazionale die Fisica Nucleare in Florence. -
Ron Hartman and the Lucerne Valley Meteorites by Robert Verish Ron Hartman and the Lucerne Valley Meteorites
Meteorite Times Magazine Contents by Editor Featured Monthly Articles Accretion Desk by Martin Horejsi Jim's Fragments by Jim Tobin Meteorite Market Trends by Michael Blood Bob's Findings by Robert Verish IMCA Insights by The IMCA Team Micro Visions by John Kashuba Meteorite Calendar by Anne Black Meteorite of the Month by Editor Tektite of the Month by Editor Terms Of Use Materials contained in and linked to from this website do not necessarily reflect the views or opinions of The Meteorite Exchange, Inc., nor those of any person connected therewith. In no event shall The Meteorite Exchange, Inc. be responsible for, nor liable for, exposure to any such material in any form by any person or persons, whether written, graphic, audio or otherwise, presented on this or by any other website, web page or other cyber location linked to from this website. The Meteorite Exchange, Inc. does not endorse, edit nor hold any copyright interest in any material found on any website, web page or other cyber location linked to from this website. The Meteorite Exchange, Inc. shall not be held liable for any misinformation by any author, dealer and or seller. In no event will The Meteorite Exchange, Inc. be liable for any damages, including any loss of profits, lost savings, or any other commercial damage, including but not limited to special, consequential, or other damages arising out of this service. © Copyright 2002–2011 The Meteorite Exchange, Inc. All rights reserved. No reproduction of copyrighted material is allowed by any means without prior written permission of the copyright owner. -
Bernardino Baldi's in Mechanica Aristotelis Problemata Exercitationes
Bernardino Baldi’s In mechanica Aristotelis problemata exercitationes ii Max Planck Research Library for the History and Development of Knowledge Series Editors Jürgen Renn, Robert Schlögl, Bernard F. Schutz. Edition Open Access Development Team Lindy Divarci, Beatrice Gabriel, Jörg Kantel, Matthias Schemmel, and Kai Surendorf, headed by Peter Damerow. Scientific Board Markus Antonietti, Ian Baldwin, Antonio Becchi, Fabio Bevilacqua, William G. Boltz, Jens Braarvik, Horst Bredekamp, Jed Z. Buchwald, Olivier Darrigol, Thomas Duve, Mike Edmunds, Yehuda Elkana, Fynn Ole Engler, Robert K. Englund, Mordechai Feingold, Rivka Feldhay, Gideon Freudenthal, Paolo Galluzzi, Kostas Gavroglu, Mark Geller, Domenico Giulini, Günther Görz, Gerd Graßhoff, James Hough, Manfred Laubich- ler, Glenn Most, Pier Daniele Napolitani, Alessandro Nova, Hermann Parzinger, Dan Potts, Circe Silva da Silva, Ana Simões, Richard Stephen- son, Mark Stitt, Noel M. Swerdlow, Liba Taub, Martin Vingron, Scott Walter, Norton Wise, Gerhard Wolf, Rüdiger Wolfrum, Zhang Baichun. Sources 3 Edition Open Access 2011 Bernardino Baldi’s In mechanica Aristotelis problemata exercitationes Elio Nenci Communicated by Jürgen Renn and Antonio Becchi Edition Open Access 2011 Max Planck Research Library for the History and Development of Knowledge Sources 3 Communicated by Jürgen Renn and Antonio Becchi Translated from Italian into English by Adriano Carugo Copyedited by Lindy Divarci ISBN 978-3-86931-961-2 First published 2011 Printed in Germany by epubli, Oranienstraße 183, 10999 Berlin http://www.epubli.de Edition Open Access http://www.edition-open-access.de Published under Creative Commons by-nc-sa 3.0 Germany Licence http://creativecommons.org/licenses/by-nc-sa/3.0/de/ The Deutsche Nationalbibliothek lists this publication in the Deutsche Na- tionalbibliografie; detailed bibliographic data are available in the Internet at http://dnb.d-nb.de. -
Geological Survey Canada
70-66 GEOLOGICAL PAPER 70-66 ., SURVEY OF CANADA DEPARTMENT OF ENERGY, MINES AND RESOURCES REVISED CATALOGUE OF THE NATIONAL METEORITE COLLECTION OF CANADA LISTING ACQUISITIONS TO AUGUST 31, 1970 J. A. V. Douglas 1971 Price, 75 cents GEOLOGICAL SURVEY OF CANADA CANADA PAPER 70-66 REVISED CATALOGUE OF THE NATIONAL METEORITE COLLECTION OF CANADA LISTING ACQUISITIONS TO AUGUST 31, 1970 J. A. V. Douglas DEPARTMENT OF ENERGY, MINES AND RESOURCES @)Crown Copyrights reserved Available by mail from Information Canada, Ottawa from the Geological Survey of Canada 601 Booth St., Ottawa and Information Canada bookshops in HALIFAX - 1735 Barrington Street MONTREAL - 1182 St. Catherine Street West OTTAWA - 171 Slater Street TORONTO - 221 Yonge Street WINNIPEG - 499 Portage Avenue VANCOUVER - 657 Granville Street or through your bookseller Price: 75 cents Catalogue No. M44-70-66 Price subject to change without notice Information Canada Ottawa 1971 ABSTRACT A catalogue of the National Meteorite Collection of Canada, published in 1963 listed 242 different meteorite specimens. Since then specimens from 50 a dditional meteorites have been added to the collection and several more specimens have been added to the tektite collection. This report describes all specimens in the collection. REVISED CATALOGUE OF THE NATIONAL METEORITE COLLECTION OF CANADA LISTING ACQUISITIONS TO AUGUST 31, 1970 INTRODUCTION At the beginning of the nineteenth century meteorites were recog nized as unique objects worth preserving in collections. Increasingly they have become such valuable objects for investigation in many fields of scienti fic research that a strong international interest in their conservation and pre servation has developed (c. f. -
Report of the United States National Museum
— THE METEORITE COLLECTION IN THE U. S. NATIONAL MUSEUM; A CATALOGUE OF METEORITES REPRESENTED NOVEMBER 1, 1886, By F. W. Clarke. The following catalogue has been prepared mainly to facilitate ex- changes and to aid in the upbuilding of the collection. In addition to the usual information as to title, date of fall, and weight of specimen, it has beeu thought well to give the source from which each example was obtained ; and it may be interesting to note that the meteorites ac- credited to Dr. J. Berrien. Lindsley were mainly received by him from the late Dr. J. Lawrence Smith. In the catalogue of the Shepard col- lection, now on deposit in the Museum, the arrangement of Professor Shepard himself has been followed without change. Including the Shepard meteorites, over 200 falls are now on exhibition, giving the entire collection a very respectable place among the larger collections of the world. The Tucson iron is unique, and therefore a cut of it is inserted. METEORIC IRONS. 1. Scriba, Oswego County, N. Y. Fouud about 1834. Fragment, 9.15 grammes. By exchange from S. C. H. Bailey. 2. Burlington, Otsego County, N. Y. Ploughed up previous to 1819. Weight of specimen, 76.87 grammes. By exchange from Prof. C. U. Shepard. 3. Lockport, Niagara County, N. Y. Ploughed up earlier thau 1845. Slice weigh- ing 155 grammes. By exchange from the cabinet of Yale College. 4. Jenny's Cheek, Wayne County, W. Va. Found in 1884. Several small frag- ments, 25.5 grammes in all; largest fragment, 15.3 grammes. -
Galileo, Ignoramus: Mathematics Versus Philosophy in the Scientific Revolution
Galileo, Ignoramus: Mathematics versus Philosophy in the Scientific Revolution Viktor Blåsjö Abstract I offer a revisionist interpretation of Galileo’s role in the history of science. My overarching thesis is that Galileo lacked technical ability in mathematics, and that this can be seen as directly explaining numerous aspects of his life’s work. I suggest that it is precisely because he was bad at mathematics that Galileo was keen on experiment and empiricism, and eagerly adopted the telescope. His reliance on these hands-on modes of research was not a pioneering contribution to scientific method, but a last resort of a mind ill equipped to make a contribution on mathematical grounds. Likewise, it is precisely because he was bad at mathematics that Galileo expounded at length about basic principles of scientific method. “Those who can’t do, teach.” The vision of science articulated by Galileo was less original than is commonly assumed. It had long been taken for granted by mathematicians, who, however, did not stop to pontificate about such things in philosophical prose because they were too busy doing advanced scientific work. Contents 4 Astronomy 38 4.1 Adoption of Copernicanism . 38 1 Introduction 2 4.2 Pre-telescopic heliocentrism . 40 4.3 Tycho Brahe’s system . 42 2 Mathematics 2 4.4 Against Tycho . 45 2.1 Cycloid . .2 4.5 The telescope . 46 2.2 Mathematicians versus philosophers . .4 4.6 Optics . 48 2.3 Professor . .7 4.7 Mountains on the moon . 49 2.4 Sector . .8 4.8 Double-star parallax . 50 2.5 Book of nature . -
Pres2014-0193.Pdf
552.6 0200 I 40.............. ... A GUIDE Tv THE COLLECTION OF METEORITES IN THE DEPARTMENT OF MINERALOGY IN THE BRITISH MUSEUM (NATURAL HISTORY), CROMWELL ROAD, SOUTH KENSINGTON. PRINTED BY ORDER OF THE TRUSTEES. 1882. P 22250 TABLE OF CONTENrrS. :: 9 PAHllS On Meteorites . 5 Catalogue of the Collection :-1. AERO&IDERITES 23 II. AEROSIDEROLITES 27 III. AEROLITES. 28 Ind,ex to the Collection . 35 The Collection of Meteorites will be found on the First Floor, in the Pavilion at the end of the Mineral Gallery: the smaller specimens are arranged in the two central table·cases, and the larger ones on separate stands. The position of any Meteorite of which a name is known can be found by help of the Alphabetical Index and of the Catalogue. 568577 ON l\lETEORITES. The Capitals rifer to cOITespondin.!J Letters on the Cases, and iudicate tlie pal,ticulll1' llane of glalSs behind which a portion of the or(r;illal JIeteorite zedl befoulld. The Numbers rifer to those in the first c07umn of thc Gllta70.!Jue, pa.r;cs 23-34, and also to correspond in,If iYumbers p7aced with the specimens. TILL the beginning of the present century, the fall of stones from the sky seemed an event so strange that neither scientific men nor the mass of the people could be brought to credit its possibility. Such faJls are, indE'ed, recorded by the early w)'itE'J's of lllany nations, Hebrew, Chinese, Greek and Roman; hut the ,,'itnesses of these events bave been in general laughed at for their delusions: perhapfl this is less to be wondered at when ,'Ie remember that the witnesses of a fall have been usually few in llumber, unaccustomed to exact observation, and have had a common tendency towards exaggeration and superstition. -
And the Origins of Modern Meteorite Research URSULAB
Meteor;t;cs & Planetary Science 3 1,545-588 (1996) a Meteoritical Society, 1996 Pnnted in USA. Invited Review Ernst Florens Friedrich Chladni (1756-1827) and the origins of modern meteorite research URSULAB. MARVIN Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts 02 138, USA Author's e-mail address: [email protected] (Received 1996 April 16; accepted in revised form 1996 July 3) ~ ~ Abstract-In 1794, Ernst F. F. Chladni published a 63-page book Uber den Ursprung der von Pallas gefun- denen und anderer ihr anlicher Eisenmassen und uber einige damit in Verbindung stehende Naturer- scheinungen in which he proposed that meteor-stones and iron masses enter the atmosphere from cosmic space and form fireballs as they plunge to Earth. These ideas violated two strongly held contemporary beliefs: (1) fragments of rock and metal do not fall from the sky, and (2) no small bodies exist in space beyond the Moon. From the beginning, Chladni was severely criticised for basing his hypotheses on his- torical eyewitness reports of falls which others regarded as folk tales and for taking gross liberties with the laws of physics. Eight years later, the study of fallen stones and irons was established as a valid field of investigation. Today, some scholars credit Chladni with founding meteoritics as a science; others regard his contributions as scarcely worthy of mention. Writings by his contemporaries suggest that Chladni's book alone would not have led to changes of prevailing theories; thus, he narrowly escaped the fate of those scientists who propose valid hypotheses prematurely. However between 1794 and 1798, four falls of stones were witnessed and widely publicized. -
Geometry and Arithmetic in the Medieval Traditions of Euclid's
Geometry and Arithmetic in the Medieval Traditions of Euclid's Elements: a View from Book II Leo Corry – Tel Aviv University Dedicated to my dear friend Sabetai Unguru on his 82th birthday Contents 1. Abstract .......................................................................................................... 1 2. Introduction .................................................................................................... 2 3. Euclid’s Elements - Book II and Geometric Algebra ............................................... 7 3.1. Elements Book II – An Overview ........................................................................................... 7 3.2. Geometric Algebra – An Overview ..................................................................................... 14 3.3. Visible and Invisible Figures ............................................................................................... 18 4. Book II in Late Antiquity and in Islam Mathematics ............................................. 22 4.1. Heron’s Commentary of the Elements ................................................................................ 22 4.2. Al-Khwārizmī and Abū Kāmil .............................................................................................. 27 4.3. Thābit ibn Qurra ............................................................................................................... 35 4.4. Al-Nayrīzī ........................................................................................................................ -
Compiled Thesis
SPACE ROCKS: a series of papers on METEORITES AND ASTEROIDS by Nina Louise Hooper A thesis submitted to the Department of Astronomy in partial fulfillment of the requirement for the Bachelor’s Degree with Honors Harvard College 8 April 2016 Of all investments into the future, the conquest of space demands the greatest efforts and the longest-term commitment, but it also offers the greatest reward: none less than a universe. — Daniel Christlein !ii Acknowledgements I finished this senior thesis aided by the profound effort and commitment of my thesis advisor, Martin Elvis. I am extremely grateful for him countless hours of discussions and detailed feedback on all stages of this research. I am also grateful for the remarkable people at Harvard-Smithsonian Center for Astrophysics of whom I asked many questions and who took the time to help me. Special thanks go to Warren Brown for his guidance with spectral reduction processes in IRAF, Francesca DeMeo for her assistance in the spectral classification of our Near Earth Asteroids and Samurdha Jayasinghe and for helping me write my data analysis script in python. I thank Dan Holmqvist for being an incredibly helpful and supportive presence throughout this project. I thank David Charbonneau, Alicia Soderberg and the members of my senior thesis class of astrophysics concentrators for their support, guidance and feedback throughout the past year. This research was funded in part by the Harvard Undergraduate Science Research Program. !iii Abstract The subject of this work is the compositions of asteroids and meteorites. Studies of the composition of small Solar System bodies are fundamental to theories of planet formation. -
Sciences Recent Acquisitions
BLACKWELL’S RARE BOOKS SCIENCES RECENT ACQUISITIONS 1 Blackwell’s Rare Books 48-51 Broad Street, Oxford, OX1 3BQ Direct Telephone: +44 (0) 1865 333555 Switchboard: +44 (0) 1865 792792 Email: [email protected] Fax: +44 (0) 1865 794143 www.blackwell.co.uk/rarebooks Our premises are in the main Blackwell bookstore at 48-51 Broad Street, one of the largest and best known in the world, housing over 200,000 new book titles, covering every subject, discipline and interest, as well as a large secondhand books department. There is lift access to each floor. The bookstore is in the centre of the city, opposite the Bodleian Library and Sheldonian Theatre, and close to several of the colleges and other university buildings, with on street parking close by. Oxford is at the centre of an excellent road and rail network, close to the London - Birmingham (M40) motorway and is served by a frequent train service from London (Paddington). Hours: Monday–Saturday 9am to 6pm. (Tuesday 9:30am to 6pm.) Purchases: We are always keen to purchase books, whether single works or in quantity, and will be pleased to make arrangements to view them. Auction commissions: We attend a number of auction sales and will be happy to execute commissions on your behalf. Blackwell’s online bookshop www.blackwell.co.uk Our extensive online catalogue of new books caters for every speciality, with the latest releases and editor’s recommendations. We have something for everyone. Select from our subject areas, reviews, highlights, promotions and more. Orders and correspondence should in every case be sent to our Broad Street address (all books subject to prior sale). -
Treatise on Land Surveying Methods Using the Surveyor's Cross
2019 IMEKO TC-4 International Conference on Metrology for Archaeology and Cultural Heritage Florence, Italy, December 4-6, 2019 The sixteenth-century find “Treatise On Land Surveying Methods Using the Surveyor’s Cross”, by Francesco Paciotti, military and civil architect to the Duchy of Urbino: the technical evolution of a surveying tool. Raffaella Marotti1 1 School of Conservation and Restoration of Cultural Heritage, Department of Pure and Applied Sciences (DiSPeA), Università degli Studi di Urbino "Carlo Bo", piazza della Repubblica, 13, 61029, Urbino, Italy, [email protected] Abstract - This paper focuses on the autograph Treatise Council Archive) at the Biblioteca Umanistica “On Land Surveying Methods Using the Surveyor’s dell’Università degli Studi di Urbino “Carlo Bo”, Cross” found at the Biblioteca Umanistica represents a primary source of information and data on the dell’Università degli Studi di Urbino “Carlo Bo” design and construction of this topographic tool, which (“Carlo Bo” Urbino University Humanistic Library). aimed to provide specific and precise measurements when The treatise was for many years erroneously included surveying land for the construction of fortifications. among the writings of the Urbino mathematician Furthermore, the treatise is of central importance as it Muzio Oddi (1569-1639), author of Dello Squadro (On bears witness to the wide and peculiar technical-scientific Land Surveying Methods Using the Surveyor’s Cross) of debate that characterised the Duchy of Urbino from the 1625, but through careful bibliographic research has second half of the 15th century to the first half of the 17th now been attributed to the civil and military architect century, making it culturally unique in Europe.