Abstract Book
Total Page:16
File Type:pdf, Size:1020Kb

Load more
Recommended publications
-
The Controversy on Photons and the Hanbury-Brown & Twiss Experiment
The Controversy on Photons and the Hanbury-Brown & Twiss Experiment Indianara Lima Silva Universidade Federal da Bahia Abstract: One can think that the hypothesis of existence of the photons was established through the experimental results carried out by Robert A. Millikan (1868- 1953), who confirmed the Einstein's equation of the photoelectric effect in 1915, and by Arthur H. Compton (1892-1962), who showed that for explaining the X-rays scattering by matter it was necessary to consider the corpuscular nature of radiation in 1923. Nevertheless, the history of the photon concept is not as linear as it may seem. Throughout the twentieth century, the demand for the concept of photon was challenged at least by the following physicists: Guido Beck (1903-1988) in his paper Zur Theorie des Photoeffekts published in 1927, Erwin Schrödinger (1887-1961) in Über den Comptoneffect published in 1927, Gregor Wentzel (1898-1978) in Zur Theorie des photoelektrisohen Effekts published also in 1927, John Newton Dodd (1922-2005) in The Compton effect – a classical treatment published in 1983, Janez Strnad (1934 – ) in The Compton effect – Schrodinger’s treatment published in 1986, Willis Eugene Lamb (1913-2008) and Marlan 0rvil Scully (1939 – ) in The Photoelectric Effect Without Photons of 1969, and again by Lamb in his paper Anti-photon published in 1995. On the other hand, never before the need of such a concept was felt as in current times. For instance, The International Society for Optical Engineering has organized conferences since 2003 whose interests is already described in their title, The Nature of Light: What is the Photon? According to the editors of the 2005 conference, “We all know that for centuries light has been playing a crucial role in the evolution of both sciences and technologies and the field is becoming ever more important every day” (Roychoudhuri, Creath and Kracklauer, p. -
Experimental Verification of the Zero-Point Energy of Electromagnetic Waves in the Quantum-Vacuum
Experimental Verification of the Zero-point Energy of Electromagnetic waves in the Quantum-vacuum PACS-classification: 84.60.-h, 89.30.-g, 98.62.En, 12.20.-m, 12.20.Ds, 12.20.Fv by Claus Wilhelm Turtur Germany, Wolfenbüttel, August – 24 – 2011 Adress of the Author: Prof. Dr. Claus W. Turtur University of Applied Sciences Braunschweig-Wolfenbüttel Salzdahlumer Straße 46/48 Germany - 38302 Wolfenbüttel Tel.: (++49) 5331 / 939 - 42220 Email.: [email protected] Internet-page: http://www.ostfalia.de/cms/de/pws/turtur/FundE/index.html Table of Contents 1. Introduction...........................................................................................................................2 2. Philosophical background.....................................................................................................3 2.1. Static fields versus Theory of Relativity ........................................................................3 2.2. A circulation of energy of the electrostatic field ..........................................................10 2.3. A circulation of energy of the magnetostatic field .......................................................14 3. Theoretical fundament of the energy-flux...........................................................................20 3.1. Vacuum-energy in Quantum mechanics.......................................................................20 3.2. Connection with the classical model of vacuum-energy..............................................22 3.3. New microscopic model for the electromagnetic -
Capodistria, Ieri E Oggi
CAPODISTRIA, IERI E OGGI Autrice Martina Seražin Mohorčič Discipline di riferimento Lingua e letteratura italiana (italiano L1), storia Target group Scuola elementare con lingua d’insegnamento italiana in Slovenia - 8 e 9 classe EDUKA2 PER UNA GOVERNANCE TRANSFRONTALIERA DELL’ISTRUZIONE ČEZMEJNO UPRAVLJANJE IZOBRAŽEVANJA EDUKA2 Per una governance transfrontaliera dell’istruzione / Čezmejno upravljanje izobraževanja Progetto finanziato nell’ambito del Programma di Cooperazione Interreg V-A Italia- Slovenia 2014-2020 con il Fondo europeo di sviluppo regionale / Projekt financira Program sodelovanja Interreg V-A Italija-Slovenija s sredstvi Evropskega sklada za regionalni razvoj Work package / Delovni sklop 3.1.3 Condivisione e realizzazione di materiali didattici e azioni pilota di supporto all’insegnamento delle lingue minoritarie e regionali / Skupno načrtovanje in realizacija didaktičnega gradiva in pilotnih aktivnosti za podporo pri poučevanju manjšinskih in regionalnih jezikov Unità didattiche per l’insegnamento dell’italiano nelle scuole con lingua d’insegnamento italiana in Slovenia / Učne enote za potrebe poučevanja italijanščine na šolah z italijanskim učnim jezikom v Sloveniji TITOLO CAPODISTRIA, IERI E OGGI AUTRICE Martina Seražin Mohorčič A CURA DI Sergio Crasnich, Sonja Starc PROJECT MANAGER Zaira Vidau EDITO DA Facoltà di Studi Educativi dell’Università del Litorale GRAFICA E IMPAGINAZIONE Ilaria Comello, Grafica Goriziana– Gorizia Il contenuto della presente pubblicazione non rispecchia necessariamente le posizioni ufficiali -
A Lecture on Nuclear Physics in Primary School
International Conference Nuclear Energy for New Europe 2004 Portorož • Slovenia • September 6-9 [email protected] www.drustvo-js.si/port2004 +386 1 588 5247, fax +386 1 561 2276 PORT2004, Nuclear Society of Slovenia, Jamova 39, SI-1000 Ljubljana, Slovenia A Lecture on Nuclear Physics in Primary School Stane Arh Medvode Primary School Ostrovrharjeva 4, SI-1215 Medvode, Slovenia [email protected] ABSTRACT I am going to propose the contents of a lecture on nuclear physics and radioactivity in primary school. Contemporary technology, medicine and science exploit intensively the discovered knowledge about processes in atoms and in a nucleus. Mankind has gained huge profit from peaceful applications of nuclear reactions and ionizing radiation. We use the products of nuclear industry every day. But about half of the school population never hears a professional explanation about what is going on in nuclear power plants. Only on some secondary schools students learn about nuclear physics. The lack of knowledge about nuclear processes is the main reason why people show great fear when hearing the words: radiation, radioactivity, nuclear, etc. At last it is now time to give some fundamental lessons on nuclear physics and radioactivity also to pupils in primary school. From my four-year teaching experience in primary school I am suggesting a programme of lectures on nuclear physics and radioactivity. At the end of the lessons we would visit the Krško Nuclear Power Plant or the Nuclear Training Centre Milan Čopič. This could be included in the so called natural science day. Pupils come from the eight class (14 years old) of primary school and have no problems following the explanation. -
Jožef Stefan, Master of Transport Phenomena
JOŽEF STEFAN MASTER OF TRANSPORT PHENOMENA I J. Strnad - Faculty of Mathematics and Physics, University of Ljubljana, Ljubljana, Slovenija - DOI: 10.1051/epn/2011201 Jožef Stefan is famous primarily for the Stefan-Boltzmann radiation law. But this remarkable physicist made original contributions in all fields of physics: fluid flow, mechanical oscillations, polarization of light, double refraction, interference and wavelength measurements. He also measured the heat conductivity of gases. He was among the few physicists who promoted Maxwell's electrodynamics theory. n Stefan's life there are two distinct periods. gymnasium and in 1853 he went to the University of ᭡ Jožef stefan During the first Stefan followed many interests Vienna to study mathematics and physics. In his youth he (1835-1893) including literature, whilst the second was devoted loved to sing and took part in choirs which he also organi - I entirely to physics. Stefan was a Slovenian who zed. Under the tutorship of his teacher and together with achieved his scientific successes in Vienna as a citizen of his schoolmates he founded a hand-written Slovenian Austria (aer 1867 Austria-Hungary). literary journal. He wrote poems for it, which were later Jožef Stefan (Fig. 1) was born on March 24, 1835 at St. published in Slovenian journals appearing in Austria. He Peter, nowadays part of Celovec (Klagenfurt) [1]-[5]. His did not overestimate the value of his poems, but he could teachers soon noticed his talents. In 1845 he entered the well have become a Slovenian poet had he not chosen ᭤ Article available at http://www.europhysicsnews.org or http://dx.doi.org/10.1051/epn/2011201 EPN 42/2 17 History JoŽEf stEfaN ᭤ fig. -
Capodistria Il Lungo Esilio
Aldo Cherini Capodistria Il lungo esilio Spoglio di cronaca giornalistica 1945 – 2008 Autoedizione 2008 Quarta revisione 15/08/2008 www.cherini.eu 2 Capodistria può essere considerata un sobborgo della grande città di Trieste dalla quale è separata da un breve tratto di mare. Quando nell’estate del 1945 Capodistria viene a cadere sotto il giogo slavo- comunista, del tutto estraneo ma rivendicata dalla Jugoslavia come terra propria, non pochi capodistriani, allibiti e sconcertati, si rifugiano a Trieste in attesa di tornare al- le proprie case sperando in un rinsavimento nelle assurdità politiche emergenti. Si sa come in realtà ciò non è avvenuto con la conseguenza di un esodo totale e definitivo. La maggioranza degli esuli si ferma a Trieste per più ragioni trovandosi ad af- frontare situazioni incredibili che li trovano impreparati e disuniti anche tra concitta- dini. Sarebbe necessaria la massima unione ma viene a mancare la persona di cari- sma, di riconosciuta autorevolezza, capace di farsi avanti, di farsi ascoltare. Non di certo un monsignore come Edoardo Marzari, già presidente del Comitato di Libera- zione Nazionale durante l’ultimo periodo della guerra, da tutti conosciuto ma politi- camente ingenuo e benemerito in altri campi; neppure Piero Almerigogna, personag- gio di spicco, patriota ma troppo compromesso con il cessato partito fascista; non il dott. Carlo Nobile, socialista, ultimo sindaco regolarmente eletto, ma eravamo nel 1922; non il farmacista Ghino de Favento, presidente del CNL- Comitato di Libera- zione Nazionale cittadino disciolto dagli slavi, non ferrato politicamente. Da ciò lo sbando fin dagli inizi. Mantiene però la sua coesione e autorevolezza sociale il Circolo Canottieri “Libertas” mentre i vecchi gruppi per lo più di impronta religiosa si riassestano in qualche modo nel loro ambito. -
Simplifications and Idealizations in High School Physics in Mechanics: a Study of Slovenian Curriculum and Textbooks
European J of Physics Education Volume 5 Issue 3 2014 Forjan & Slisko Simplifications and Idealizations in High School Physics in Mechanics: A Study Of Slovenian Curriculum And Textbooks Matej Forjan School Centre Novo mesto, Šegova 112, SI-8000 Novo mesto, Slovenia Faculty of Industrial Engineering, Šegova 112, SI-8000 Novo mesto, Slovenia [email protected] Josip Sliško Benemérita Universidad Autónoma de Puebla Abstract This article presents the results of an analysis of three Slovenian textbooks for high school physics, from the point of view of simplifications and idealizations in the field of mechanics. In modeling of physical systems, making simplifications and idealizations is important, since one ignores minor effects and focuses on the most important characteristics of the systems and processes. In high school physics, simplified and idealized models play a fundamental role in learning physics concepts and laws, so it is of crucial importance that textbooks present them carefully. The review shows that in two textbooks more than a half of analyzed simplifications are not properly presented. Keywords: Physics curriculum, textbook analysis, simplified models, idealizations Introduction Research in recent years and decades shows that science subjects in general and physics in particular are becoming less popular and interesting for students (Osborne, Simon and Collins, 2003; Osborne and Collins, 2008; Osborne and Dillon, 2008; Haste, 2012; Saleh, 2012). One of the main reasons for students’ negative attitude is the fact that in school physics teachers are dealing with topics that are quite distant from the student's reality and, as such, are neither relevant to their daily lives nor relevant to the most pressing problems of mankind (Osborne and Dillon, 2008; Zhu and Singh, 2013). -
Pregled Sodobne Fizike Subject Title: Review of Modern Physics
Fakulteta za naravoslovje in Univerza v Mariboru matematiko / Faculty of Natural University of Maribor Sciences and Mathematics OPIS PREDMETA / SUBJECT SPECIFICATION Predmet: Pregled sodobne fizike Subject Title: Review of modern physics Študijski program Študijska smer Letnik Semester Study programme Study field Year Semester Enopredmetna izobraževalna fizika 1 2 Single major Educational Physics Univerzitetna koda predmeta / University subject code: Predavanja Seminar Sem. vaje Lab. Vaje Teren. vaje Samost. delo ECTS Lectures Seminar Tutorial Lab. Work Field work Individ. work 60 30 210 10 Nosilec predmeta / Lecturer: Mitja Slavinec Jeziki / Predavanja / Lecture: slovenski / Slovenian Languages: Vaje / Tutorial: slovenski / Slovenian Pogoji za vključitev v delo oz. za opravljanje Prerequisites: študijskih obveznosti: Predznanje iz klasične in moderne fizike Preknowledge of classical and modern physics Vsebina: Contents (Syllabus outline): Posebna teorija relativnosti. Special theory of relativity. Osnovni načeli, Lorentzova transformacija, skrčenje Postulates, Lorentz transformation, length dolžine in podaljšanje časa, Dopplerjev pojav, contraction and time dilatation, Doppler effect; lastna polna in kinetična energija; poskusi, ki energy; experimental verifications č potrjujejo ena be posebne teorije relativnosti. Semi-quantum mechanics. Uvod v kvantno fiziko. Fotoefekt, Comptonov pojav, interferenčni poskusi s Fotoeffect, Compton effect, interference of particles; curki delcev; nedoločenost lege in gibalne količine, exclusion principle; -
27/2013, Razglasni
Uradni list Republike Slovenije Razglasni del Internet: www.uradni-list.si e-pošta: [email protected] Št. Ljubljana, petek ISSN 1318-9182 Leto XXIII 27 29. 3. 2013 Javni razpisi Št. 430-76/2013/8 Ob-2058/13 Tretji odstavek se spremeni na: Podlagi za pridobitev letnega prometa in bilančne Spremembe vsote sta: – bilanca stanja na dan 31. 12. 2012 in izkaz po- Ministrstvo za notranje zadeve RS je dne 8. 3. 2013 slovnega izida za leto 2012, v Uradnem listu RS, št. 20/13 objavilo javni razpis za – za podjetja, ustanovljena v letu 2013 velja, da se izvajanje programa Tečaj spoznavanja slovenske zgo- upoštevajo podatki na podlagi bilance stanja in izkaza dovine, kulture in ustavne ureditve Republike Slovenije poslovnega izida od dneva ustanovitve do zadnjega za osebe z mednarodno zaščito, št. 430-76/2013, ki se dne preteklega meseca, glede na mesec oddaje vloge financira iz sredstev Evropskega sklada za begunce – na Sklad. letni program 2011 in sredstev Ministrstva za notranje V sedmem odstavku se pogoji, pod katerimi se zadeve. podjetje ne more prijaviti na razpis, v tretji alineji spre- Obveščamo vas, da je skladno s točko 12. Navodil menijo na: prijaviteljem za izdelavo vloge razpisne dokumentaci- – so v težavah na podlagi računovodskih izkazov je predmetnega javnega razpisa, za predmetni javni za leto 2012, skladno z opredelitvijo 2. člena Zakona razpis na internetnem naslovu naročnika: http://www. o pomoči za reševanje in prestrukturiranje gospodarskih mnz.gov.si/, zgornji meni »o ministrstvu«, levi meni družb v težavah. »Javna naročila«, naročnik objavil dokument Spremem- Podjetje je v težavah: ba razpisne dokumentacije, z dne 22. -
Lazar, Irena, Aleksander Panjek in Jonatan Vinkler. Ur. 2020. Mikro In
Nuove tendenze della letteratura italiana in Istria Nives Zudič Antonič UP FHŠ, Oddelek za italijanistiko in Inštitut za medkulturne študije [email protected] Introduzione La produzione letteraria degli autori italiani dell’Istria e di Fiume si è sem- pre caratterizzata per ricchezza e vivacità, dovute all’eclettismo dei pro- tagonisti, ai diversi interessi da essi manifestati e alle tematiche trattate. Difatti, la marginalità geografica della regione nel corso dei secoli si è ri- velata tutto sommato un punto di forza, piuttosto che un ostacolo, perché, se da un lato ha fatto arrivare in loco, a rilento, interessanti stimoli cultu- rali, dall’altro, però, proprio in seguito a questo fatto, ha incrementato una fitta rete di rapporti con i paesi con i quali gli istriani si trovavano natu- ralmente a dialogare. Così, dunque, si sono intensificati i contatti con la Repubblica di Venezia, con l’Impero asburgico e con i maggiori centri di irradiazione letteraria. Man mano che le ragioni storiche e, conseguente- mente, economiche lo esigono, la sostanziale tranquillità viene sovvertita e si crea un ambiente di grande dinamicità che investe più settori della vita letteraria. Tra i nomi di spicco possono venir citati Pier Paolo Vergerio il Vecchio (1370-1444) e il Giovane (1498-1565), Girolamo Muzio (1496-1576), Gian Rinaldo Carli (1720-1795), Pasquale Besenghi degli Ughi (1797-1849), Michele Facchinetti (1812-1852), Giuseppe Picciola (1859-1912) e Giovanni Quarantotto (1881-1977) che davano alla letteratura e alla cultura di queste terre una condizione di privilegio, come spiega Tomizza citando un passo dal suo romanzo Il male viene dal Nord (1984):1 1 Il romanzo rappresenta la parabola della vita del capodistriano Pier Paolo Vergerio il Giovane, giurista, nunzio, e vescovo riformatore del XVI secolo. -
Putting the Quantum to Work: Otto Sackur's Pioneering Exploits in The
Putting the quantum to work: Otto Sackur’s pioneering exploits in the quantum theory of gases Massimiliano Badino and Bretislav Friedrich FHI Abstract: In the wake of the First Solvay Conference (1911), many leading physicists had begun embracing the quantum hypothesis as a key to solving outstanding problems in the theory of matter. The quantum approach proved successful in tackling the solid state, resulting in the nearly definitive theories of Debye (1912) and of Born & von Karman (1912-13). However, the application of the old quantum theory to gases was hindered by serious difficulties, which were due to a lack of a straightforward way of reconciling the frequency-dependent quantum hypothesis with the aperiodic behavior of gas molecules. A breakthrough came from unlikely quarters. Otto Sackur (1880-1914) had been trained as a physical chemist and had almost no experience in the research fields traditionally associated with quantum theory (heat radiation, statistical mechanics, thermodynamics). However, in 1911, he discovered an expression for the absolute entropy of a monoatomic gas. A Dutch high-school student, Hugo Martin Tetrode, reached the same result at about the same time independently. The Sackur-Tetrode equation rendered entropy as an extensive variable (in contrast to the classical expression, cf. the Gibbs paradox) and expressed the thermodynamically undetermined constant in terms of molecular parameters and Boltzmann’s and Planck’s constants. This result was of great heuristic value because it suggested the possibility of deriving the thermodynamic variables of a gas quantum mechanically. At the same time, the Sackur-Tetrode equation offered a conventient means to evaluate the parameters of molecular gases, thus promising a grand unification of quantum theory, thermodynamics, and physical chemistry. -
Nobelova Nagrada Za Fiziko Podeljena Za Odkritje Nevtrinskih Oscilacij ■
december 2015, 4/78. letnik cena v redni prodaji 5,50 EUR naročniki 4,50 EUR upokojenci 3,70 EUR dijaki in študenti 3,50 EUR www.proteus.si ■ Nobelove nagrade za leto 2015 Nobelova nagrada za fiziko podeljena za odkritje nevtrinskih oscilacij ■ V spomin Janez Strnad (4. marca 1934 - 28. novembra 2015) ■ Farmacija Fitoestrogeni in možnosti njihove uporabe ■ Naravoslovna fotografija Rezultati natečaja naravoslovne fotografije za leto 2015 Vsebina 147 153 177 170 ■ stran 150 Nobelove nagrade za leto 2015 Nobelova nagrada za fiziko podeljena za 148 Uvodnik 170 Medicina odkritje nevtrinskih oscilacij Tomaž Sajovic Puščanje krvi - od venesekcije do pijavk Jurij Kurillo Janez Strnad 150 Nobelove nagrade za leto 2015 Nobelova nagrada za fiziko podeljena za 177 Naravoslovna fotografija Letošnjo Nobelovo nagrado za fiziko sta si razdelila Takaaki Kadžita in Arthur B. McDo- odkritje nevtrinskih oscilacij Rezultati natečaja naravoslovne fotografije nald za »odkritje nevtrinskih oscilacij, ki kažejo, da imajo nevtrini maso«. Nagrajenca vodi- Janez Strnad za leto 2015 ta veliki raziskovalni skupini, Kadžita japonsko Superkamiokande, McDonald pa kanadski Petra Draškovič Pelc Nevtrinski observatorij Sudbury. Nevtrinske oscilacije so jasno znamenje, da imajo nevtrini 153 V spomin majhno maso. To pomeni, da bo zagotovo treba spremeniti standardni model delcev, saj je Janez Strnad (4. marca 1934 - 28. 185 Drobne vesti ta predvideval, da imajo nevtrini maso nič. Zdaj je treba raziskovati modele in izbirati naj- novembra 2015) Jože Bole – ob dvajseti obletnici smrti boljše. Dosedanji predlogi kažejo prve uspehe. Aleš Mohorič Rajko Slapnik Prispevek je zadnje besedilo, ki ga je pokojni prof. dr. Janez Strnad pripravil za objavo v 156 Farmacija 185 Naše nebo reviji Proteus.