The present is the key to the paleo-past: Charles R. Knight’s reconstruction of extinct beasts for the Field Museum, Chicago

2021 ◽  
Author(s):  
Renee M. Clary

ABSTRACT Although he was legally blind, Charles R. Knight (1874–1953) established himself as the premier paleontological artist in the early 1900s. When the Field Museum, Chicago, commissioned a series of large paintings to document the evolution of life, Knight was the obvious choice. Knight considered himself an artist guided by science; he researched and illustrated living animals and modern landscapes to better understand and represent extinct life forms within their paleoecosystems. Knight began the process by examining fossil skeletons; he then constructed small models to recreate the animals’ life anatomy and investigate lighting. Once details were finalized, Knight supervised assistants to transfer the study painting to the final mural. The Field Museum mural process, a monumental task of translating science into public art, was accompanied by a synergistic tension between Knight, who wanted full control over his artwork, and the museum’s scientific staff; the correct position of an Eocene whale’s tail—whether uplifted or not—documents a critical example. Although modern scientific understanding has rendered some of Knight’s representations obsolete, the majority of his 28 murals remain on display in the Field Museum’s Evolving Planet exhibit. Museum educators contrast these murals with contemporary paleontological knowledge, thereby demonstrating scientific progress for better public understanding of the nature of science.

2020 ◽  
Vol 13 (1) ◽  
pp. 3-15
Author(s):  
Arunachalam Vasanthanathan ◽  
Uthirakumar Siddharth ◽  
Manivannan Vignesh ◽  
Radhakrishnan Pravin

Background: Nature has always played a vital role in the evolution of life forms. The design of products in accordance with nature’s design, popularly known as biomimicry, had played a vital role in pushing the technology and product effectiveness to the next level. Humans have long sought to mimic not just the design, but also the methodology adopted by certain animals. For example, the walking technique of vertebrates has been effectively mimicked for a quadruped robot to make a system more efficient by consuming less power. Thus indirectly, nature acts as a driving factor in pushing technological growth. Methods: The principle objective of this paper is to provide an overview of popular bio mimicked products inspired by nature. This paper emphasizes a wide variety of products developed in the field of materials inspired by nature. Results: Wall-climbing robots, Sonar, X-ray imaging, Sandwich and Honeycomb structures are some of the popular products and designs inspired by nature. They have resulted in better designs, better products with improved efficiency and thus have proven to be better alternatives. Some products and designs such as Samara drone, Riblet surfaces, DSSCs, Biomimetic Drills and Water turbines have plenty of scopes to replace conventional products and designs. Conclusion: While plenty of products, structures and designs have successfully replaced older alternatives, there is still a large scope for biomimicry where it could potentially replace conventional products and designs to offer better efficiency.


Author(s):  
Maria Chuy ◽  
Marlene Scardamalia ◽  
Carl Bereiter ◽  
Fleur Prinsen ◽  
Monica Resendes ◽  
...  

In 1993 Carey and Smith conjectured that the most promising way to boost students’ understanding of the nature of science is a “theory-building approach to teaching about inquiry.” The research reported here tested this conjecture by comparing results from two Grade 4 classrooms that differed in their emphasis on and technological support for creating and improving theories. One class followed a Knowledge Building approach and used Knowledge Forum®, which together emphasize theory improvement and sustained creative work with ideas. The other class followed an inquiry approach mediated through collaborative project-based activities. Apart from this, the two classes were demographically similar and both fell within the broad category of constructivist, inquiry-based approaches and employed a range of modes and media for investigative research and reports. An augmented version of Carey and Smith’s Nature of Science Interview showed that the Knowledge Building approach resulted in deeper understanding of the nature of theoretical progress, the connections between theories and facts, and the role of ideas in scientific inquiry.


2001 ◽  
Vol 2 (1) ◽  
pp. 103-134
Author(s):  
Gary Backhaus

Anna-Teresa Tymieniecka expands the phenomenological study of meanings (sense-bestowal) into an onto-genetic inquiry by grounding it in a phenomenology of life, including the emotional dimension. This phenomenology of life is informed by the empirical sciences and its doctrines parallel the new scientific paradigm of open dynamic systems. Embedded in the dynamics of the real individuation of life forms, human consciousness emerges at a unique station in the evolutionary process. Tymieniecka treats the constitution of sense as a function of life, and thus the transcendental constitutive function of the cognitive, objectifying intentionality of consciousness, the purview of classical phenomenology, is viewed as a project that is limited in its scope. According to the phenomenology of life, meaning-genesis is exhibited throughout the various stages of structurization in the evolution of life. This paper highlights the transformative function of the “Imaginatio Creatrix,” which is the dynamic process at the human station of evolution that accounts for humanity’s inventive capacities necessary for the construction of a human world. The Imaginatio Creatrix transforms the more primitive stirrings of the human “soul” into subliminal passions of human existential significance. The enactive theory of the mind corroborates Tymieniecka’s rejection of Husserl’s doctrine of passive synthesis. However, Tymieniecka’s study of the creative function offers a key for further advancement in enactive theory. Three sense-bestowing functions of the Imaginatio Creatrix account for the human expansion of life: the Aesthetic/Poetic sense, the Objectifying Sense, and the Moral Sense. The Moral Sense, for Tymieniecka, is not the product of reasoning powers, but rather the fruit of subliminal passions that acquire their moral aspect through trans-actions guided by the “benevolent sentiment.”


2013 ◽  
Vol 21 (S1) ◽  
pp. S9-S13 ◽  
Author(s):  
Lewis Wolpert

Science provides the best way of understanding the world. Public understanding of science is limited: science goes against common sense, the earth moves round the sun. Paranormal beliefs are all too common and they go completely against science, there is a mystical element in our brains. Unlike religion, science is universal and is almost entirely independent of the particular culture in which it is performed. It had is origin in ancient Greece. Whenever a new technology is introduced it is not for the scientists to take an ethical decision about how it should be used, but they must make public the implications.


2005 ◽  
Vol 11 (2) ◽  
pp. 77 ◽  
Author(s):  
Harry F. Recher ◽  
Paul R. Ehrlich

The beginning and end of each geological epoch is marked by a major, often cataclysmic, event affecting Earth?s biophysical environment. Most often major periods in Earth?s history requiring a new epoch to be named are remarkable by the mass extinction of dominant life forms and their eventual replacement by new groups of organisms which then dominate Earth?s ecosystems. Only once in pre-history were these spectacular evolutionary events precipitated by a physical or chemical change to Earth?s atmosphere as a result of biological activity. This occurred early in Earth?s history with the release of ?polluting? oxygen after the evolution of photosynthesis. More frequently, punctuations in the evolution of life have been brought on by some virtually instantaneous disruption to climate by extreme volcanic activity or an asteroid strike, such as that which heralded the end of dinosaurs and the dawn of the age of mammals. In these instances, changes to the capacity of Earth?s atmosphere to absorb and reflect light and heat from the Sun initiated a period of rapid global climate change leaving insufficient time for organisms to migrate or adapt.


2021 ◽  
Vol 9 (11) ◽  
pp. 235-251
Author(s):  
Y. V. Subba Rao

              The current hypothesis leads to the panspermia origin of life, which is based on the scientific principle of electromagnetic force interaction with matter. Electromagnetic force (Sunlight) interacts with inorganic chemistry available to us given out by the stars in the universe plausibly triggers the formation of extra-terrestrial biological molecules of proto cells under abiotic conditions, as evidenced by their presence in meteorites.' Proto cells’ might theoretically give rise to living organisms with a manifested soul, allowing 'Ribose' to be formed from ice grains hit by sunlight for RNA and DNA at the same time. The presence of life's building blocks and other important organic chemicals like ribose in meteorites, including some microscopic life forms that aren't native to Earth, may have led to the 'Panspermia Origin of Life' and the 'Evolution of Life on Earth' which is evidenced by the definition of 'Meteorites' in Vedic Scriptures, such as the "Bhagavad Gita" (3000 BC) and "Brihat Samhita" (520 AD) that they are the souls of righteous people who have returned to earth to be reborn.


2021 ◽  
Vol 12 (14) ◽  
pp. 1975-2002
Author(s):  
Robert M. L. Baker Jr. ◽  
Bonnie Sue Baker ◽  
Jeannie Hall Moller Fontana
Keyword(s):  

Author(s):  
Robin Dunbar

Can we say how life on earth started? The origins of life on earth must predate the earliest fossils, and presumably must be simpler in form than even those earliest fossils. It is very unlikely that we will ever know what these life forms were,...


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