Oszillierende Weltmodelle versus Urknallmodelle. Das oszillierende Weltmodell Friedmanns,die Ablehnung der Anfangssingularität durch russische Kosmologen und die Zustimmung der katholischen Kirche zur Urknalltheorie Lemaîtres und Hawkings

The Russian mathematician and physicist Friedmann and the Belgian priest and physicist Lemaître were the first to consider non‐static world models in the framework of Einstein's general theory of relativity. Friedmann seemed to favour a periodic, oscillating cosmological model. His investigations were taken up by Russian cosmologists in the 1960s. They stated that the singularities present in many of the Friedmann‐Lemaître cosmological models seemed to be artificial and were ascribed to the assumption of a highly symmetric distribution of cosmic matter. Their disapproval of singularities seems to be in accord with Soviet ideological requirements during that time like atheism and dialectic materialism. They had to retract their statements after Hawking had proved his singularity theorems and after the microwave background had been discovered. Hawking followed the line of thought which was initiated by Lemaître in the early 1930s. Lemaître had combined for the first time quantum physics and relativistic cosmology and had developed his idea of the primeval atom, a beginning of the universe in a dense state with just one quantum containing the whole mass of the universe. Pope Pius XII brought together this primeval atom and God as the Creator of the universe and declared in 1951 that big bang cosmology is compatible with the Bible. Not surprisingly Hawking was awarded the Pius XI medal by the Vatican in 1975 for his contributions to big bang cosmology.     

Erfahrung,Weltbild und Erkenntnis bei Nikolaus Cusanus

To explain the interaction of stillness and motion of thought, Nicholas Cusanus formulated his renowned comparison with a cosmographer, which through five gateways, corresponding to the five senses, receives information about the world in the form of messages. What follows therefrom is not directly an analysis of the world but of the Creator, whom the philosopher mirrors in himself as a creator of scientific symbols. Cusanus was repeatedly suspected of Pantheism. What is crucial, however, for the critique of reasonning is the parallelism, that God's omnipresence in his creation corresponds to a universal capacity of the human mind to perceive everything by means of a hypothetical otherness (alteritate coniecturali). Therefrom proceeds the general projection that everything can be seen in mathematical terms. Mathematical calculating, working with figures, reducing to units, leads Cusanus to God's creative power as much as to the functioning of the intellect. However, his renowned mental experiments on the minimum and maximum were purely in pursuit of the goal of describing the fluid frontiers of defined thought. This is also true of his cosmology. Cusanus argued mathematically in order to prove the non-mathematical and the non-realistic.     

La théorie des éléments de Christophorus Clavius et l'idée du globe terraqué

Christophorus Clavius' Theory of the Elements and the Idea of the Terraqueous Globe. The need to reconcile Aristotle's theory of elementary spheres with the evidence of earth above sea level – the so‐called ‘terra firma’ – induced an important conceptual shift. As a consequence anti‐Aristotelian arguments were brought to the fore in order to be incorporated into the very same Aristotelian tradition. The German Jesuit Christophorus Clavius played a momentous role in this process. He introduced the idea of the terraqueous globe into the Scholastic cosmology, modifying the logical frame of Aristotelian physics. The present work analyses Clavius' theory as well as the procedures he considers to reach his purpose. He used a combinatorial approach to study the relations occurring between the four elements – earth, water, air and fire – and analysed their relations from a physical perspective, proposing a possible structure of the sublunary world.     

Silvesterbesinnung und Weihnachtsartikel. Jahresendzeitreflexionen großer Physiker des 20. Jahrhunderts

The article deals with the relationship between science and religion (esp. Christian faith) in two articles of physicists Max Planck and Pascual Jordan. The relationship of the two factors is reflected in the treatment of time, a subject that comes up because both articles were written on the occasion of the year's end or even the end of a decade. By analysing the two perspectives on time it is possible to distil the distinctive ideas of Planck and Jordan on religion and how a religious should be related to a scientific world view. From this two different models of a positive relationship of science and religion can be formulated which transcend the framework of present discussions on the subject. In conclusion a possible role of science of religions in the dialogue between science and religion is described.     

Die Centrosophia des Athanasius Kircher SJ: Geometrisches Paradigma und geozentrisches Interesse

The main subject of the paper is to give an example of what could be called, in the history of philosophy and science, reinforcement of traditional topics or paradigms of explanation in order to give explanatory support to or to coooborate the defence of old or the solution of new problems. In the 17th century nearly all positions in the natural science are dependent from theological and philosophical (metaphysical) presuppositions, especially all positions which belong to types of the scientia universalis (Yves de Paris, S. Izquierdo, A. Kircher). To defend the finiteness of the world and the geocentric position of the earth, the Jesuit A. Kircher (1602–1680) returns to an old topic of cosmological speculation, to the geometria speculativa, in order to demonstrate the absolute perfect and finite structure of the world as an analogon of the absolute perfect and finite structure of the cercle or, better, the sphere (globe). He shows this in his Iter exstaticum (Rome 1656) and in his Mundus subterraneus (Amsterdam 1665). The paper discusses only a central part of the Mundus subterraneus titled ‘Centrosophia’: here we find all typical arguments for the phenomenon of reinforcement of old topics and paradigms. God is the center or the non-dimensional point (punctum) of the cosmic sphere (which is the sphere of all being) and he is in consequence the principle of all geometrical (ontological) parts of this figure. Kircher transmits the evidence of the perfect geometric relation between center and circumference modo analogico to the relation God (creator) and world. Together with this well known and often used analogy he develops a new theory: the theory of the dignity of the subterranean parts of the earth and the earth as earth, as the unic and ideologically exclusive place in all reality that gives mankind the fundament to develop its own implications. The high estimation of the earth sets free an unprejudiced view of what the subterranean area really is: Kircher thinks here in organologic categories — the subterranean world is an analogon of the world as such and this world is a great animal. Kircher develops in the limits of his traditional geocentric position an new non-traditional theory of the inner side of the world.