The origin and early evolution of animals marks an important event in life's history. This event is historically associated with an important variable in Earth history – oxygen. One view has it that an increase in oceanic oxygen levels at the end of the Neoproterozoic Era (roughly 600 million years ago) allowed animals to become large and leave fossils. How important was oxygen for the process of early animal evolution? New data show that some modern sponges can survive for (...) several weeks at low oxygen levels. Many groups of animals have mechanisms to cope with low oxygen or anoxia, and very often, mitochondria – organelles usually associated with oxygen – are involved in anaerobic energy metabolism in animals. It is a good time to refresh our memory about the anaerobic capacities of mitochondria in modern animals and how that might relate to the ecology of early metazoans. (shrink)

Despite the increase in marine science curriculum in secondary schools, marine science is not generally required curricula and has been largely deemphasized or ignored in relation to earth science, biology, chemistry, and physics. I call for the integration and implementation of marine science more fully in secondary science education through authentic inquiry practices that foster the development of an erotic relationship with the ocean. Such a relationship can provide an opportunity to develop ocean literacy if that means (...) people who engage can actively participate in making more informed choices and advocate for affected parties and the ocean. I show how Simone de Beauvoir's erotic ethic influences the philosophy of the eroticism of the ocean, which is integral in the investigation and promotion of erotic generosities in science education, and using this theory to develop some educational implications for marine science within science education. Ultimately, I argue that the development and nurturing of an erotic ethic in the science education classroom is a valuable way to promote moral and ethical thinking such that students can afford nature, and more specifically in this article, the ocean, equivalent moral considerations in our community and science education. (shrink)

A growing number of geologists, geophysicists, and other Earth scientists now claim that human caused changes in the chemistry of the atmosphere, oceans, and land are so pervasive as to constitute a new geological epoch characterized by humanity’s impact on the planet. They argue that these changes are so profound that future geologists will easily recognize a discernible boundary in the stratigraphy of rock separating this new epoch from the previous geological epoch, i.e., the Holocene. They propose to name (...) this new geological epoch the “Anthropocene,” a term meaning the age of man. Common to this view is the claim that humans are now the ecologically dominant force on Earth. This paper compares the understanding of human self-identity developed by the defenders of the Anthropocene discourse with the understanding of human self-identity developed by radical ecologists. It concludes by arguing that only an ecologically and dialogically informed conception of human self-identity can provide an adequate point of departure for an ecologically benign form of human dwelling on this planet. (shrink)

In the second half of the twentieth century, a surprising change in the notion of scientific truth gained ground when an evolutionary cosmology made the Newtonian world machine into no more than a passing phase of the cosmos, subject to exceptions in the neighborhood of Black Holes and other unusual objects. Physical and chemical laws ceased to be eternal and universal and became local and changeable, that is, fundamentally historical instead, and faced an uncertain, changeable future just as they had (...) in the initial phases of the cosmos.The earth sciences along with biology had become historical in the nineteenth century; and the Big Bang cosmology in effect brought physics and chemistry into line, allowing venturesome intellects to concoct a new all-embracing worldview that recognizes the catalytic role of the observer in defining what is observed, and how different levels of local complexity provoke new and surprising phenomena--including terrestrial life forms, and most notably for us, humanly-constructed symbolic meanings--of which science is only one example.The article then argues that it is time for historians to take note of the imperial role thus thrust upon their discipline by making a sustained effort to enlarge their views and explore the career of humankind on earth as a whole, thus making human history an integral part of the emerging scientific and evolutionary worldview.Tentative suggestions of how this might be addressed, focusing on changes in patterns of communication that expanded the scale of human cooperation, and thus conduced to survival, follow. Dance, then speech, were early breakthroughs expanding the practicable size of wandering human bands; then caravans and shipping allowed civilizations to arise; writing expanded the scale of coordination; warfare and trade harshly imposed best practice across wide areas of Eurasia and Africa and kept the skills of that part of the world ahead of what the peoples of other continents and islands had at their command. Then with the crossing of the oceans after 1492 our One World began to emerge and swiftly assumed its contemporary shape with further improvements in the range and capacity of communication--for example, printing, mechanically-powered transport, instantaneous data transmission--with consequences for human society and earth's ecosystem yet to be experienced.Much remains to be investigated and, in particular, interactions between the history of human symbolic meanings and the history of other equilibria--ecological, chemical, physical--within which we exist needs further study. But with suitable effort, history can perhaps become scientific and the emerging scientific evolutionary worldview begin to achieve logical completeness by bringing humankind within its scope. (shrink)

An adequate account of how inferences and discoveries are made in modern biology is a difficult prospect for a philosopher. Do we really deduce conclusions from Darwin’s principles? Once Darwinian biology is integrated with molecular biology, can we deduce the organism from its DNA? What does induction look like in an era where data sets are often too large to be processed by a human being? What is the role of abductive explanatory claims that try to define the biological individual (...) in relation to the microbiome with which it may be associated, or to revise the notion of evolution when the interaction of organism and environment comes to seem much more complex than earlier generations imagined. How should we evaluate “origins of life” experiments conducted in the laboratory, where chemistry shifts to biology and we try to recreate early conditions on earth to which we have no empirical access? How are the carefully controlled conditions in the lab to be brought into productive relationship with the messy, contingent outdoor work of biologists in the field, studying crabs or eelgrass at the edge of the Pacific Ocean, or prairie plants at the end of woods, on the plains of the Midwest. To answer these questions, I sent my graduate student Tano Posteraro to work with Ted Grosholz, a marine biologist at the University of California / Davis, and my undergraduate student Alex Grigas to work with Ruth Geyer Shaw, a population geneticist at the University of Minnesota. They came back with complex and interesting answers to these questions. (shrink)

In the 1930s and 1940s a research school developed among scientists at the Scripps Institution of Oceanography in La Jolla, California. Although that was due in large part to Harald U. Sverdrup, a prominent Norwegian oceanographer who served as Scripps director from 1936 to 1948, this paper emphasizes the adaptive, evolving character of that research school. Conditions at Scripps prior to Sverdrup's arrival influenced his efforts in successfully organizing a group of scientists. Once at Scripps Sverdrup proved to be an (...) able leader, but he also had to adapt to the local scientific culture. Trained in a tradition that emphasized the study of physics, chemistry and meteorology, Sverdrup's emphasis on dynamical oceanography had a powerful impact on his new colleagues. But in the process his understanding of oceanography also evolved. He became more fully aware of the importance of biological and geological investigations, and it was only through close interaction with and reliance on a diverse group of scientists that there emerged an ecological understanding of the oceans that became a hallmark of Scripps oceanography. Emphasizing the importance of adaptation and interaction, and the work of other scientists in addition to a group leader, this paper offers new insights into the formation of research schools. (shrink)

This paper replies to “Can AI Believe?”—an insightful commentary on “Can AI Know?” Addressing the substantive concern, this paper argues that AI systems can possess knowledge-conducive dispositional beliefs, rather than mere dispositions to believe, akin to certain human perceptual and manipulated beliefs. In response to the dialectical concern, it defends the appropriateness of the original dilemmatic reasoning. The commentators’ claim that proponents of innate knowledge deny knowledge’s need for experience is critically examined.

This paper argues that individual propositional knowledge, as traditionally analyzed in terms of true-justified-ungettiered belief, does not require phenomenal experience. Accordingly, those who are satisfied with the traditional conception need to come to terms with the possibility that AI and other zombies that lack phenomenal experience possess knowledge. Alternatively, those who resist attributing knowledge to AI based on the assumption that knowledge requires phenomenal experience need to modify or replace the traditional conception of knowledge to incorporate this requirement.

Cet article datant de l’an 2000 proposait un survol visionnaire de la façon dont des media alors émergeants aux débuts de l’internet questionnaient la prémisse identifiant le succès d’un média avec la maximisation chiffrée de son audience. L’auteur passe en revue des « media intimes », des « media socialisés », des « media souverains » et des « media phatiques » pour dépasser les idées héritées du XX e siècle sur l’utilité et la qualité des mass-médias.

Carl Mika claims in the symposium’s lead essay that we need more myth today. In fact, an “unscientific” attitude can potentially reorient the alienation from the world. For Mika, a philosophical mātauranga Māori incorporates such a way of being in the world. Through it, an unmediated and co-existent relationship with the world can be built up. Some of Mika’s co-symposiasts invite Mika to substantiate aspects about this bold claim. Carwyn Jones nudges Mika to discuss the parallels between tikanga Māori—a system (...) that seeks to incorporate Māori law—and the common-law tradition that is adopted in New Zealand today. W. Julian Korab-Karpowicz agrees with Mika that to understand the world through an indifferent “scientific” investigation is to understand the world only partially, while the Māori scientist Ocean Ripeka Mercier illustrates how she seeks to develop a third space in her work that reconciles the fear of the unknown with the propensity to control the world through knowing. Helen Verran invites Mika to think about whether, and how, his understanding of a philosophical mātauranga Māori can help to facilitate the cultivation of a naturalism that is able to generate a cosmopolitics in New Zealand. (shrink)

This paper argues that the field of chemistry underwent a significant change of theory in the early twentieth century, when atomic number replaced atomic weight as the principle for ordering and identifying the chemical elements. It is a classic case of a Kuhnian revolution. In the process of addressing anomalies, chemists who were trained to see elements as defined by their atomic weight discovered that their theoretical assumptions were impediments to understanding the chemical world. The only way to normalize (...) the anomalies was to introduce new concepts, and a new conceptual understanding of what it is to be an element. In the process of making these changes, a new scientific lexicon emerged, one that took atomic number to be the defining feature of a chemical element. (shrink)

Reductionism remains the dominant philosophical framework of modern science. Within reductionism, the universe is conceived as a probabilistic and deterministic system guided solely by the laws of physics and mathematics. Under the guidance of reductionist thought, the development of the modern atomic theory and quantum mechanics has drastically changed science, medicine, and philosophy. In particular, the standard model of particle physics remains the crowning achievement of over three hundred years of reductionist thought in both physics and chemistry. Yet developments (...) within chemistry suggest a new paradigm is required to overcome the limitations of reductionism and provide chemists a more fruitful model. This article will argue that a version of relational ontology provides an avenue for elucidating and predicting chemical and atomic phenomena. In relational ontology, the ontological status of an enduring entity in any moment is viewed as a composite of its own inherited properties and the influences of other entities, especially those closely related to it within a system. This view encompasses the causal aspects of the world without denying its dynamic and creative nature while providing a richer understanding of chemistry and other scientific fields. (shrink)

William Newman construes the Scientific Revolution as a change in matter theory, from a hylomorphic, Aristotelian to a corpuscular, mechanical one. He sees Robert Boyle as making a major contribution to that change by way of his corpuscular chemistry. In this article it is argued that it is seriously misleading to identify what was scientific about the Scientific Revolution in terms of a change in theories of the ultimate structure of matter. Boyle showed, especially in his pneumatics, how empirically (...) accessible, intermediate causes, as opposed to ultimate, mechanical ones can be explored and identified by experiment. Newman is right to observe that Boyle constantly sought intimate links between chemistry and the mechanical philosophy. However, by doing so he did not thereby significantly aid the cause of attaining experimental knowledge of chemical phenomena and the support that Boyle’s chemistry provided for the mechanical philosophy was weaker than both Boyle and Newman imply. Boyle was intent on articulating and defending a strict, mechanical account of the ultimate structure of matter to be sure, but his contributions to the new experimental science in general, and chemistry in particular, are best seen as distinct from that endeavour.Keywords: Chemistry; Mechanical philosophy; Corpuscular philosophy; Experiment; Robert Boyle; William Newman. (shrink)

During the mid-1970s the extraordinarily dangerous style of free solo climbing emerged in the collective practice of a small community of “Stonemaster” climbers actively developing new climbing routes and the new “free” style of roped climbing in what is now Joshua Tree National Park, California. While its emergence might be interpreted as an affectively-driven, macho embodied social semiotic or ethnomotricity, in actuality the evolution of free soloing in the case of Stonemaster-era climbing at Joshua Tree may be more accurately understood (...) as the logical consequence of an intensive regime of practice in which climbers developed a near absolute bodily familiarity with certain climbing routes. Eventually, the reasonableness of climbing with little and even no protection on a subset of these routes became self-evident and conventional. Free soloing, in the semiotic perspective of the later Peirce, manifested as a Normal Logical Interpretant in the Joshua Tree landscape. It embodied the living definition of self-controlled conduct, and the Symbols it cultivated testified persuasively to the growth of a creative corporeal intelligence actualizing near absolute degrees of free will. (shrink)

The aim of this paper is to engage with the interplay between representational content and design in chemistry and to explore some of its epistemological consequences. Constraints on representational content arising from the aspectual structure of representation can be manipulated by design. Designs are epistemologically important because representational content, hence our knowledge of target systems in chemistry, can change with design. The significance of this claim is that while it has been recognised that the way one conveys information (...) makes a difference to the inferences one can draw from representations in spite of the invariance of informational content, the present paper argues that in chemistry and biochemistry it is often the case that designs have cognitive priority relative to informational content. (shrink)

Chemists do not aim at testing preconceptions or theoretical hypotheses only; they first and foremost produce and determine the object of chemical investigation: they learn through making. They never cease to create and stabilize heterogeneous devices, methods, models, and theories in order to act upon the world. Chemical bodies cannot be studied in isolation; their properties constitutively depend on what surrounds and acts upon them. Starting from the specificity of chemical practices, this paper investigates the meaning of consistency, inconsistency, and (...) that of the ceteris paribus clause, in this domain of science. In so doing, it defends the idea that studying what we call ‘a lack of consistency’ should always include the scrutiny of: the way a particular scientific practice is stabilized, and the ontological or pragmatic assumptions about the entities and processes upon which this practice revolves. (shrink)

Harold Kincaid in Individualism and the Unity of Science postulates a model of unity-without-reduction in order to accurately describe the relation between individualism and macroeconomics. I present this model and apply it to the description of the relation between chemistry and quantum mechanics. I argue that, when it comes to the description of molecular structure, chemistry and quantum mechanics are unified in Kincaid’s sense. Specifically, the two disciplines contribute to the formation of a unified body of knowledge with (...) respect to molecular structure. (shrink)

The paper is focused on some aspects of experimental realism of Ian Hacking, and especially on his manipulability criterion of existence. The problem is here related to chemical molecules, the objects of interest in chemical research. The authors consider whether and to what extent this criterion has been applied in experimental practice of chemistry. They argue that experimentation on is a fundamental criterion of existence of entities in chemistry rather than experimentation with. Some examples regarding studies of structures (...) of complex compounds, taken from organic chemistry, are presented to support the authors' considerations. Chemists' laboratory practice depends strongly on the way that representations of entities on (or with) the experiments are used. The authors show that this point has not been given sufficient attention by the new experimentalists. (shrink)

The importance of watching and understanding color of chemical compounds and linking it to diverse physical and chemical properties is illustrated here using transition metal oxides at the highest achievable oxidation state of a metal. Analyses are based on qualitative thinking supported by Molecular Orbital theory in its simplest implementation. Graphic abstract.

Ocean biology helps regulate global climate by fixing atmospheric CO2 and exporting it to deep waters as sinking detrital particles. New observations demonstrate that particle fragmentation is the principal factor controlling the depth to which these particles penetrate the ocean's interior, and hence how long the constituent carbon is sequestered from the atmosphere. The underlying cause is, however, poorly understood. We speculate that small, particle‐associated copepods, which intercept and inadvertently break up sinking particles as they search for attached (...) protistan prey, are the principle agents of fragmentation in the ocean. We explore this idea using a new marine ecosystem model. Results indicate that explicitly representing particle fragmentation by copepods in biogeochemical models offers a step change in our ability to understand the future evolution of biologically‐mediated ocean carbon storage. Our findings highlight the need for improved understanding of the distribution, abundance, ecology and physiology of particle‐associated copepods. (shrink)

This essay addresses issues concerningexplanation by exploring how explanatorystructures function within contemporarychemistry. Three examples are discussed:explanations of the behavior of gases using theideal gas law, explanations of trends inchemical properties using the periodic table,and explanations of molecular geometry usingdiagrammatic orbital schemes. In each case,the general explanatory structure, rather thanparticular explanations, occupies center stagein the analysis. It is argued that thisquasi-empirical investigation may be morefruitful than previous analyses that attempt toisolate the essential features of individualexplanations. There are two reasons for thisconclusion, (...) each discussed in some detail. First, the traditional analyses rely on highlyprecarious reasoning. Second, empiricallygrounded investigations provide a more naturalconnection to the core aim of analyses ofexplanation, namely to provide a rationale forthe widely expressed preference for explanatorytheories in science. (shrink)

The goal of constructing artificial photosynthetic assemblies is to use sunlight for the generation of hydrogen from water; the hydrogen obtained should be an ideal energy source. The use of surfactant vesicle entrapped‐catalyst coated colloidal semiconductors and sacrificial electron donors for photosensitized water reduction illustrates how chemists mimic photosynthesis.

In the paper it is demonstrated that Bell’s theorem is an unprovable theorem. The unprovable characteristic has, on the chemical side, repercussions for e.g. spin chemistry and the related magneto-reception studies. We claim that the unprovability of this basic mathematics cannot be ignored by the physics and chemical research community. The demonstrated mathematical multivaluedness could be an overlooked aspect of nature.