This paper analyses Bohr’s complementarity framework and applies it to biosemiotic studies by illustrating its application to three existing models of living systems: mechanistic biology, Barbieri’s version of biosemiotics in terms of his code biology and Markoš’s phenomenological version of hermeneutic biosemiotics. The contribution summarizes both Bohr’s philosophy of science crowned by his idea of complementarity and his conception of the phenomenon of the living. Bohr’s approach to the biological questions evolved – among other things – from the consequences of (...) an epistemological lesson of quantum theory and in light of complementarity of observer as a priori living creature and ex post scientific explanation of the living. In a manifestation of the phenomenon of the living, each model of living system and its description makes accessible – from its own presuppositions, contexts and concepts – some features which are not accessible from the others. Nevertheless, for a general understanding of that phenomenon, incompatible sophisticated approaches are equally necessary. Bohr’s epistemology of complementarity turns out to be a heuristic and methodical framework for testing the extent to which biosemiotics can become one of the special sciences or its potential as a cross-disciplinary branch of study. (shrink)

Článek se zabývá demystifikací dodnes panující legendy o ikoně světové vědy, nositeli Nobelovy ceny za objev štěpení těžkých jader, chemiku Otto Hahnovi. Desítky let byl považován za vzor německé slušnosti, zodpovědnosti a příklad antinacistického vědce, který nekolaboroval se zločinným režimem na jeho válečné mašinérii. Teprve od devadesátých let 20. století se dostávají k rukám historiků archivní materiály, jež umožňují získat ucelenou představu o Hahnově působení v době nacistického Německa a o jeho aktivním zapojení ve válečném uranovém výzkumu, jehož výsledkem mělo (...) být sestrojení jaderných reaktorů a bomb. (shrink)

Příspěvek se zaměřuje na zavádějící příběh o tzv. kodaňské interpretaci kvantové mechaniky, již jako údajně nerozpornou či jednotnou vytvořili a sdíleli na základě tzv. kodaňského ducha kvantové teorie její tvůrci v roce 1927. Článek bude vycházet z role, kterou v tomto příběhu sehráli především N. Bohr a W. Heisenberg. První část příspěvku seznamuje s variacemi toho, co se v literatuře považuje za kodaňskou interpretaci. Druhá část odhaluje, že zatímco kvantová mechanika vznikla ve dvacátých letech 20. století, kodaňská interpretace je veskrze (...) problematickým a především Heisenbergovým produktem z let padesátých. Jednou z hlavních motivací, kvůli níž vystoupil s tzv. kodaňskou interpretací, byla obrana vůči množícím se kritikám obhájců kvantové teorie. Jelikož mezi členy tzv. kodaňské školy nepanovala žádná jednotná či nerozporná interpretace kvantové mechaniky, zaměřuje se poslední část příspěvku na několik vybraných rozdílů hlavně mezi Bohrovým a Heisenbergovým výkladem kvantové teorie. (shrink)

Phenomenology and Quantum theory have defined themselves against the subject-object tradition of thought and against the modern objectivistic attempt to unify explanation of reality or being. Scientific technology and calculative way of thinking have prevailed over meditative and qualitative thinking in modern times. Despite scientific efforts to eliminate any inconsistency caused by metaphysical speculations and systems, in everyday life and science we encounter such phenomena which cannot be explained unambiguously and fully on the basis of purely conventional criteria. This paper (...) focuses on Bohr's framework of complementarity. The idea enables us exploring and describing a given phenomenon in such manner that we get adequate knowledge of the same phenomenon or subject of interest only by completing incompatible descriptions. (shrink)

The study deals with an existential role of preunderstandings in the works of the leading founders of quantum theory. First, the study introduces Heidegger’s hermeneutic-phenomenological approach to the concept of understanding. Second, this concept is applied to various ways of thinking with which physicists approached the solutions of scientific puzzles and constructions of new assumptions in the development of quantum theory. The article seeks to contribute to the debate in the methodology and philosophy of science and points out that the (...) role of preunderstandings is still underestimated. (shrink)

The essay deals with Nazi uranium research in the context of Jungkʼs bestseller Brighter Than a Thousand Suns (1956). The first part of the article introduces the reader to Jungk himself, as well as to the historical-political context that crucially influenced his moralising positions in favour of the German uranium scientists (they did not build nuclear weapons for Hitler) and at the same time against the Allied scientists (they built nuclear weapons and used them). Based on historical sources (gradually made (...) available since the 1970s), the second part of the study discusses the Nazi Uranium Clubʼs efforts to produce a uranium reactor and nuclear weapons. German scientists worked for the Nazi regime voluntarily and intensively and were fascinated by the research. The third part reveals the origins of the post-war legend of the supposedly innocent German scientists, their decades-long alibism, and the criticism of Jungkʼs bestseller by the Allied command, the scientists, and eventually Jungk himself, who put faith in the interviews in which German scientsts proclaimed their activities had been nothing but peaceful. (shrink)