1 / 15

Workshop on Transmission of Information Dresden 18.6.2013

Fakultät Mathematik und Naturwissenschaften, F achrichtung Physik. Kosmogonie in the Middle Ages and in Modern Physics Michael Kobel Institut für Kern- und Teilchenphysik Technische Universität Dresden. Workshop on Transmission of Information Dresden 18.6.2013.

gaetan
Télécharger la présentation

Workshop on Transmission of Information Dresden 18.6.2013

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Fakultät Mathematik und Naturwissenschaften, Fachrichtung Physik Kosmogonie in the Middle Ages and in Modern PhysicsMichael Kobel Institut für Kern- und Teilchenphysik Technische Universität Dresden Workshop on Transmission of InformationDresden 18.6.2013

  2. Cosmology and Human Curiosity • Camille Flammarion (1842-1925), Astronomer • Wrote about 50 popularbooksormanuscripts, startingas 16-year oldwith a 500 page „Cosmologie Universelle“ • 1880: Yes, indeed, if humankind — from humble farmers in the fields and toiling workers in the cities to teachers, people of independent means, those who have reached the pinnacle of fame or fortune, even the most frivolous of society women — If they knew what profound inner pleasure await those who gaze at the heavens, then France, nay, the whole of Europe, would be covered with telescopes instead of bayonets, thereby promoting universal happiness and peace." Illustration in „L'Atmosphère. Météorologiepopulaire “ (Paris, 1888): „Un missionnaire du moyen âge raconte qu'il avait trouvé le point où le ciel et la terre se touchent ...  “ Michael Kobel

  3. Today‘s View of the History of the Universe BigBang Forceshave separated Nuclei form Stars form Inflationary Expansion Protons and Neutrons form Atoms form today 1 Billion years 376 000 years 13.8 Billion years Time afterBig Bang 10-10s 10-35s 10-5s 3 min Energy =Temperature 150 MeV 1013TeV 1TeV 1eV 1meV 0,25meV 0,1MeV 3 Energy of CERN’s LHC Collider

  4. Threeexamples from Cosmology • expansion of the Universe • Higgs-Field and Higgs-Particles: why and how • CosmicMicrowave Radiation: The Sound of the Universe Michael Kobel

  5. Standard model of cosmology • Friedmann–Lemaître–Robertson–Walker (1920-1930) • Georges Lemaître (1894-1966)Expansion of the universe: • Few variables • Size a + itschancewith time • Densityr + itschangewith time • Pressure p • naturalscaleparametersG,c,L • Hubble: Measurement of Expansion 1929 • Distantobjectsmoveawayfaster(today‘ s plot) Abbé G. Lemaître (1894 - 1966)‏ Albert Einstein (1879 - 1955)‏ http://einestages.spiegel.de/static/topicalbumbackground/24682/der_priester_mit_dem_urknall.html Michael Kobel

  6. Transmission of information • 2-dim model of expansion(C.H.Lineweaver,T.M.Davis, Scientific American, March 2005) Michael Kobel

  7. Threeexamples from Cosmology • expansion of the Universe • Higgs-Field and Higgs-Particles: why and how • CosmicMicrowave Radiation: The Sound of the Universe Michael Kobel

  8. Symmetry and Mass • Solution:SpontaneousSymmetryBreaking (Nambu 1960)happening 10-12 sec after Big Bang • Givesmass to forcecarriers (W und Z)Brout&Englert, Higgs, Hagen&Guralnik&Kibble (1964) • Can givemass also to all otherparticlesWeinberg (1967), Salam(1967) • Symmetries of Electromagneticand Strong Interactions • requiremasslessforcecarriers • allowparticlemasses (identical in symmetrymultiplet) • Symmetry of Weak Interaction • Requiresmasslessforcecarriers • Requires in additionmostotherparticlesmassless Michael Kobel

  9. Popularanalogy: A party (David Miller, UCL) More:http://home.web.cern.ch/about/updates/2013/05/basics-higgs-boson http://www.youtube.com/user/minutephysicshttp://www.youtube.com/watch?v=ASRpIym_jFM http://www.youtube.com/watch?v=IqAWqwh3Etw Michael Kobel

  10. International Masterclasses(centrallyorganized in Dresden for IPPOG) • Public Measurement of Higgs particleswith real CERN DataCERN Masterclasses www.physicsmasterclasses.org www.teilchenwelt.de : New in 2013

  11. Threeexamples from Cosmology • Expansion of the Universe • Higgs-Field and Higgs-Particles: why and how • CosmicMicrowave Radiation: The Sound of the Universe Michael Kobel

  12. The CosmicMicrowavebackground Michael Kobel

  13. Acustic Analogy: overtones of instruments

  14. Analysis of Overtones • Scientific Planck Satelliteresults, March 2013http://sci.esa.int/science-e/www/object/index.cfm?fobjectid=51551 • Tools for the Public to reproducethissoundbychanging the composition of the universeand moreeducationalresources • http://map.gsfc.nasa.gov/resources/camb_tool • http://map.gsfc.nasa.gov/resources/edresources1.html Michael Kobel

  15. Transmission of Information • Levels of information • Scientific publicationlevel • Equations, images, diagrams, all mostly for specialists • Undergraduatelevel • Fully quantitative, equations for simplifiedsituations • „Scientific American“ level • Semi-quantitative, Simple Diagrams, Scientific analogies • Public level • Not quantitative, (too?) simple analogies, few/nodiagrams • Unscientificlevel • Esoteric, biased, oftenhostile to science • How to avoid the danger of Information loss • Adjust to the targetaudience • Useimageswhichemphasisemost relevant information • Chose analogies from everydaylife; don‘ t hidetheirlimitations • Letaudiencebecomeactivethemselves: Confucius (551 BC - 479):"I hear and I forget. I see and I remember. I do and I understand." Michael Kobel

More Related