cal Aspects of Cosmlogy I

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    THE ANTHROPIC PRINCIPLE

    AND THE PHILOSOPICALASPECTS OF COSMOLOGY

    Prof. Mariusz P. Dbrowski

    Institute of Physics,

    University of Szczecin (Lectures I-V) read to

    students of theology

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    Szczecin Cosmology Group http://cosmo.fiz.univ.szczecin.pl

    Cosmological expansion of the galaxies according to

    Einsteins theory (see above) suggests that the universecould have started with the Big-Bang.

    The gravitational waves background was created soon after the Big-Bang. Its discoverycould be the next prove for the reality of the event. The gravitational waves are also

    produced in astrophysical phenomena such as: coalescing binaries of the neutron starsand the black holes. There exists a space project LISA to detect such waves (see above).

    ITERreaktor

    termojdrowy

    Szczecin Cosmology Group carries on advanced research in large-scale structure of the universe and its past and future evolution. The basic framework of the research isnot only general relativity but also more avangardous unification of interactions theories such as superstring and M-theory. The group has a broad international

    collaboration, e.g. with prof. John D. Barrow (see top right) from Cambridge University a mathematician, the 2005 Templeton Prize winner and the author of manyworlwide-known popular books in physics and cosmology. We also collaborate with rev. prof. Michael Heller (see top right) from Vatican Observatory and Interdisciplinary

    Kopernik Center in Krakw the 2007 Templeton Prize winner a physicist, a philosopher and a theologian.The members of the group are: prof. M.P. Dbrowski, prof.. J. Garecki, prof.. J. Stelmach, A. Balcerzak (M. Sc.) and Dr. T. Denkiewicz.

    For full info about the group see: http://cosmo.fiz.univ.szczecin.pl.

    One of the key assumptions of thesuperstring theory is that all the

    elementary particles at theextremely small scale are not pointobjects, but rather extended and

    continuously vibrating strings. Thescattering of the two strings can be

    described by a pants diagram

    (see right).

    The most convincingevidence for the reality of

    the Big-Bang was thediscovery of the

    electromagnetic cosmicmicrowave background

    (see left). About thefuture evolution of theuniverse one is able to

    learn by observing theexploding supernovae

    (see right).

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    I. Anthropic aspects of

    cosmology.

    1. The man in the Universe.

    Cosmological Anthropic Principles.

    Masses and sizes of the objects in

    the Universe are not arbitrary.

    What does it mean?

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    Heights and masses of the human population

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    Object Radius m Mass kg

    Universe 1026 1051

    Galaxy Milky Way 1021 1041

    Star Sun 109 1030

    planet earth 104 1025

    Man 100 102

    bacterium ! !

    virus ! !

    atom hydrogen 10-10 10-27

    nucleus hydrogen 10-15 10-27

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    Besides, the physical world is full of various

    coincidences,which are required for life to exist.

    Examples (out of hundreds): water shrinks

    at 0-4 Celcius degree, the Earth has the onlyone and quite large natural satellite due to

    which it does not wobble chaotically,

    electrons are light enough compared tothe nuclei etc.

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