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However, there is also independent evidence within these Norwegian eclogites of these flows of hot fluids that were responsible for the rapid metamorphism of the precursor granulites. A sample of related eclogite containing biotite flakes was closely examined and polonium-210 radiohalos were found in it (7 polonium-210 radiohalos in 50 microscope slides, each containing 20-30 biotite flakes).21 This discovery, the first time any radiohalos have been documented in eclogites, is highly significant.Biotite was not in the precursor granulites, so it had to form as a result of both their metamorphism to eclogite and the fluid flows. Of course, these radiohalos could only have been produced in the biotite grains after they formed. Furthermore, because there was no source of either parent uranium-238 or its radioactive decay products within either the eclogites or the precursor granulites, the large quantities of polonium-210 required to generate these radiohalos had to have been transported from external sources into the biotite flakes within these rocks by the hot fluids.22 But the polonium-210 only has a half-life of 138 days, and the radiohalos would only have formed and survived after the temperature in the rocks fell below 150°C. So this drastically restricts the duration of the earthquake-triggered hot fluid flows and associated eclogite metamorphism even more, perhaps to only a few weeks or months! And because the heat flow into the granulites to metamorphose them would have been primarily by convection associated with the fluid flows, rather than just by conduction,23 such a drastically short timescale of only weeks for this eclogite metamorphism is entirely feasible.
Conclusion
Of course, in conventional geological dogma which primarily envisages slow and gradual processes over long ages, even a timescale of ten years is almost too radical and controversial to be readily accepted. However, in the context of accelerated catastrophic erosion, deposition of thick strata sequences, earth movements, plate tectonics and continental collisions during the year-long global Genesis Flood, it is entirely feasible that rapid flows of hot fluids triggered by earthquakes were injected into shear zones within the granulites to transform them into eclogites within weeks. Once again, continued research has provided evidence that confirms the feasibility of another aspect of the Creation-Flood model of Earth history, namely, rapid metamorphism of rocks during the Genesis Flood, consistent with the infallible record of God's Word.
References
- Bucher, K., and M. Frey, 2002. Petrogenesis of Metamorphic Rocks, 7th edition, pp. 67-68, Springer-Verlag, Berlin.
- Snelling, A. A., 1994. "Towards a Creationist Explanation of Regional Metamorphism." Creation Ex Nihilo Technical Journal, 8(1):51-77.
- Snelling, A. A., 1994. "Regional Metamorphism Within a Creationist Framework: What Garnet Compositions Reveal." In Proceedings of the Third International Conference on Creationism, R. E. Walsh (editor), pp. 485-496. Creation Science Fellowship, Pittsburgh, PA.
- Kelley, S., 2005. "Hot Fluids and Cold Crusts." Nature, 435:1171.
- Wain, A. L., D. J. Waters, and H. Austrheim, 2001. "Metastability of Granulites and Processes of Eclogitisation in the UHP Region of Western Norway." Journal of Metamorphic Geology, 19:607-623.
- Austrheim, H., and W. L. Griffin, 1985. "Shear Deformation and Eclogite Formation within Granulite Facies Anorthosites of the Bergen Arcs, Western Norway." Chemical Geology, 50:267-281.
- Boundy, T. M., and D. M. Fountain, 1992. "Structural Development and Petro-fabrics of Eclogite Facies Shear Zones, Bergen Arcs, Western Norway: Implications for Deep Crustal Deformational Processes." Journal of Metamorphic Geology, 10:127-146.
- Austrheim, H., M. Erambert, and T. M. Boundy, 1996. "Garnets Record Deep Crustal Earthquakes." Earth and Planetary Science Letters, 139:223-238.
- Austrheim, H., and T. M. Boundy, 1994. "Pseudotachylytes Generated During Seismic Faulting and Eclogitization of the Deep Crust." Science, 265:82-83.
- Kühn, A., J. Glodny, K. Iden, and H. Austrheim, 2000. "Retention of Precambrian Rb/Sr Phlogopite Ages through Caledonian Eclogite Facies Metamorphism, Bergen Arc Complex, W-Norway." Lithos, 51:305-330.
- Bingen, B., W. J. Davis, and H. Austrheim, 2001. "Zircon U-Pb Geochronology in the Bergen Arc Eclogites and Their Proterozoic Protoliths, and Implications for the Pre-Scandian Evolution of the Caledonides in Western Norway." Geological Society of America Bulletin, 113(5):640-649.
- Jamtveit, B., K. Bucher-Nurminen, and H. Austrheim, 1990. "Fluid Controlled Eclogitization of Eclogites in Deep Crustal Shear Zones, Bergen Arcs, Western Norway." Contributions to Mineralogy and Petrology, 104:184-193.
- Austrheim, H., and T. M. Boundy (1994), op. cit.
- Camacho, A., J. K. W. Lee, B. J. Hensen, and J. Braun, 2005. "Short-lived Orogenic Cycles and the Eclogitization of Cold Crust by Spasmodic Hot Fluids." Nature, 435:1191-1196.
- Kelley, S. (2005), op. cit.
- Camacho, A., J. K. W. Lee, B. J. Hensen, and J. Braun (2005), op. cit.
- Jamtveit, B., H. Austrheim, and A. Malthe-Sorenssen, 2000. "Accelerated Hydration of the Earth's Deep Crust Induced by Stress Perturbations." Nature, 408:75-78.
- Austrheim, H., and T. M. Boundy (1994), op. cit.
- Bjornerud, M., H. Austrheim, and M. G. Lund, 2002. "Processes Leading to Eclogitization (Densification) of Subducted and Tectonically Buried Crust." Journal of Geophysical Research, 107(B10):2252-2269.
- VanHaren, J. L. M., J. J. Ague, and D. M. Rye, 1996. "Oxygen Isotope Record of Fluid Infiltration and Mass Transfer During Regional Metamorphism of Pelitic Schist, Connecticut, USA." Geochimica et Cosmochimica Acta, 60(18):3487-3504.
- Snelling, A. A., 2005. "Radiohalos in Granites: Evidence for Accelerated Nuclear Decay." In Radioisotopes and the Age of the Earth: Results of a Young-Earth Creationist Research Initiative, L. Vardiman, A. A. Snelling, and E. F. Chaffin (editors), chapter 3, pp. 101-207 (especially Table 4, p. 188). Institute for Creation Research, El Cajon, CA, and Creation Research Society, Chino Valley, AZ.
- Snelling, A. A. (2005), op. cit.
- Snelling, A. A., and J. Woodmorappe, 1998. "The Cooling of Thick Igneous Bodies on a Young Earth." In Proceedings of the Fourth International Conference on Creationism, R. E. Walsh (editor), pp. 527-545. Creation Science Fellowship, Pittsburgh, PA.
* Dr. Snelling is an associate professor in the Geology Department at ICR.
[body_edit] =>Where thick sequences of sedimentary rock layers have been deposited in large basins, the deepest layers at the bottoms of the sequences may subsequently have become folded by earth movements when subjected to elevated temperatures and pressures that were sufficient to transform them into metamorphic rocks. Thus the clay particles in shales and the mineral grains in sandstones were metamorphosed into the new minerals found today in schists and gneisses. Geologists conventionally envisage these metamorphic processes as having required millions of years.1
In contrast, creation geologists maintain that just as thick sequences of sedimentary rocks were rapidly deposited and movements of the tectonic plates of the earth's crust occurred rapidly during the year-long Flood catastrophe, these associated metamorphic processes were likewise rapid. The hot waters that saturated the deeply buried sedimentary and other rocks, and/or that flowed rapidly through them, were responsible for the rapid mineral transformations.2,3
Norwegian Metamorphic Rocks
Conventional geologists were surprised recently by documented evidence for rapid metamorphism.4 Along the southwest coast of Norway, in the Bergen area, former igneous (intrusive) rocks were radically transformed into high-grade metamorphic rocks known as granulites by the high pressures exerted on them deep in the earth's crust late in the Precambrian.5 During a subsequent continental collision in the Silurian, hot fluids penetrated along closely-spaced shear zones, where rocks are believed to have deformed plastically as they moved sideways against each other, and transformed most of the granulites into another metamorphic rock called eclogite.6
These eclogites are strikingly beautiful, coarse-grained, and characterized by large pink garnets in a green matrix, rich in pyroxene. They are conventionally believed to have formed at depths of some 60 km and temperatures of around 700°C.7 However, these Norwegian eclogites paradoxically exhibit features more commonly associated with tectonic processes at lower temperatures closer to the earth's surface.8,9 Furthermore, rubidium-strontium radioisotope dating of the granulite lenses immediately adjacent to these eclogites yields an "age" closer to that of the untransformed granulite,10,11 even though the temperatures supposedly required for formation of the eclogites should have obliterated that earlier "age."12 Thus it has been suggested that the Norwegian granulite-eclogite transformation must have occurred during short-lived fluid flow events over less than a million years.13
A Radical Short Timescale
However, a drastically shorter timescale has now been proposed,14 one that "will make many geologists draw breath!"15 An ultraviolet laser was used to measure profiles of argon-argon radioisotope "ages" across individual mineral grains in the untransformed granulite lenses.16 In this technique the abundance of argon-40 (which forms from the radioactive decay of potassium-40) supposedly indicates the elapsed time since the temperature was last high enough for the argon (a gas) to diffuse rapidly through these minerals and escape at the boundaries between grains. The "ages" thus obtained not only confirmed the earlier rubidium-strontium "dates," but demonstrated just how little the granulite lenses had been affected by the later formation of the immediately adjacent eclogites.
Furthermore, these argon-40 data were then used to estimate what the temperature must have been in the granulite lenses during formation of the eclogites. The estimate—less than 400°C—is dramatically lower than the conventional requirement of around 700°C for formation of the immediately adjacent eclogites. The only way this glaring inconsistency can be reconciled is if the time period over which the heat was applied to these granulites during their adjacent metamorphism to eclogites was drastically shorter than the previously suggested one million years or less. It was calculated that the total heating duration must have been around only 18,000 years to explain the argon-argon "age" profiles in the mineral grains.
However, even more radical is the conclusion from heat-conduction calculations that the individual fluid flow "events," when hot fluids (at 700°C) flowed through the shear zones in the granulites and metamorphosed them to eclogites, had to have lasted just ten years or less, otherwise there would have been significant heating beyond 400°C of the surviving granulite lenses between the shear zones. Furthermore, it was concluded that this is exactly what would be expected if fluid migration was triggered by multiple, spasmodic deformation events associated with earthquakes, in which the hot fluids were repeatedly injected into, and pumped along, the shear zones by earth movements. This is consistent with the evidence of hydraulic fracturing17 and rocks formed by friction melting along fractures18 associated with these eclogite-bearing shear zones.19 Thus this model overturns conventional long-age thinking by evoking a radically different picture for the conditions responsible for eclogite metamorphism, in which the exceedingly rapid metamorphic transformation occurs in only ten years or less!
Confirming Evidence
Such rapid fluid flow events are not without precedent, having been associated with vein formation during regional metamorphism of schists in Connecticut (USA).20
However, there is also independent evidence within these Norwegian eclogites of these flows of hot fluids that were responsible for the rapid metamorphism of the precursor granulites. A sample of related eclogite containing biotite flakes was closely examined and polonium-210 radiohalos were found in it (7 polonium-210 radiohalos in 50 microscope slides, each containing 20-30 biotite flakes).21 This discovery, the first time any radiohalos have been documented in eclogites, is highly significant.
Biotite was not in the precursor granulites, so it had to form as a result of both their metamorphism to eclogite and the fluid flows. Of course, these radiohalos could only have been produced in the biotite grains after they formed. Furthermore, because there was no source of either parent uranium-238 or its radioactive decay products within either the eclogites or the precursor granulites, the large quantities of polonium-210 required to generate these radiohalos had to have been transported from external sources into the biotite flakes within these rocks by the hot fluids.22 But the polonium-210 only has a half-life of 138 days, and the radiohalos would only have formed and survived after the temperature in the rocks fell below 150°C. So this drastically restricts the duration of the earthquake-triggered hot fluid flows and associated eclogite metamorphism even more, perhaps to only a few weeks or months! And because the heat flow into the granulites to metamorphose them would have been primarily by convection associated with the fluid flows, rather than just by conduction,23 such a drastically short timescale of only weeks for this eclogite metamorphism is entirely feasible.
Conclusion
Of course, in conventional geological dogma which primarily envisages slow and gradual processes over long ages, even a timescale of ten years is almost too radical and controversial to be readily accepted. However, in the context of accelerated catastrophic erosion, deposition of thick strata sequences, earth movements, plate tectonics and continental collisions during the year-long global Genesis Flood, it is entirely feasible that rapid flows of hot fluids triggered by earthquakes were injected into shear zones within the granulites to transform them into eclogites within weeks. Once again, continued research has provided evidence that confirms the feasibility of another aspect of the Creation-Flood model of Earth history, namely, rapid metamorphism of rocks during the Genesis Flood, consistent with the infallible record of God's Word.
References
- Bucher, K., and M. Frey, 2002. Petrogenesis of Metamorphic Rocks, 7th edition, pp. 67-68, Springer-Verlag, Berlin.
- Snelling, A. A., 1994. "Towards a Creationist Explanation of Regional Metamorphism." Creation Ex Nihilo Technical Journal, 8(1):51-77.
- Snelling, A. A., 1994. "Regional Metamorphism Within a Creationist Framework: What Garnet Compositions Reveal." In Proceedings of the Third International Conference on Creationism, R. E. Walsh (editor), pp. 485-496. Creation Science Fellowship, Pittsburgh, PA.
- Kelley, S., 2005. "Hot Fluids and Cold Crusts." Nature, 435:1171.
- Wain, A. L., D. J. Waters, and H. Austrheim, 2001. "Metastability of Granulites and Processes of Eclogitisation in the UHP Region of Western Norway." Journal of Metamorphic Geology, 19:607-623.
- Austrheim, H., and W. L. Griffin, 1985. "Shear Deformation and Eclogite Formation within Granulite Facies Anorthosites of the Bergen Arcs, Western Norway." Chemical Geology, 50:267-281.
- Boundy, T. M., and D. M. Fountain, 1992. "Structural Development and Petro-fabrics of Eclogite Facies Shear Zones, Bergen Arcs, Western Norway: Implications for Deep Crustal Deformational Processes." Journal of Metamorphic Geology, 10:127-146.
- Austrheim, H., M. Erambert, and T. M. Boundy, 1996. "Garnets Record Deep Crustal Earthquakes." Earth and Planetary Science Letters, 139:223-238.
- Austrheim, H., and T. M. Boundy, 1994. "Pseudotachylytes Generated During Seismic Faulting and Eclogitization of the Deep Crust." Science, 265:82-83.
- Kühn, A., J. Glodny, K. Iden, and H. Austrheim, 2000. "Retention of Precambrian Rb/Sr Phlogopite Ages through Caledonian Eclogite Facies Metamorphism, Bergen Arc Complex, W-Norway." Lithos, 51:305-330.
- Bingen, B., W. J. Davis, and H. Austrheim, 2001. "Zircon U-Pb Geochronology in the Bergen Arc Eclogites and Their Proterozoic Protoliths, and Implications for the Pre-Scandian Evolution of the Caledonides in Western Norway." Geological Society of America Bulletin, 113(5):640-649.
- Jamtveit, B., K. Bucher-Nurminen, and H. Austrheim, 1990. "Fluid Controlled Eclogitization of Eclogites in Deep Crustal Shear Zones, Bergen Arcs, Western Norway." Contributions to Mineralogy and Petrology, 104:184-193.
- Austrheim, H., and T. M. Boundy (1994), op. cit.
- Camacho, A., J. K. W. Lee, B. J. Hensen, and J. Braun, 2005. "Short-lived Orogenic Cycles and the Eclogitization of Cold Crust by Spasmodic Hot Fluids." Nature, 435:1191-1196.
- Kelley, S. (2005), op. cit.
- Camacho, A., J. K. W. Lee, B. J. Hensen, and J. Braun (2005), op. cit.
- Jamtveit, B., H. Austrheim, and A. Malthe-Sorenssen, 2000. "Accelerated Hydration of the Earth's Deep Crust Induced by Stress Perturbations." Nature, 408:75-78.
- Austrheim, H., and T. M. Boundy (1994), op. cit.
- Bjornerud, M., H. Austrheim, and M. G. Lund, 2002. "Processes Leading to Eclogitization (Densification) of Subducted and Tectonically Buried Crust." Journal of Geophysical Research, 107(B10):2252-2269.
- VanHaren, J. L. M., J. J. Ague, and D. M. Rye, 1996. "Oxygen Isotope Record of Fluid Infiltration and Mass Transfer During Regional Metamorphism of Pelitic Schist, Connecticut, USA." Geochimica et Cosmochimica Acta, 60(18):3487-3504.
- Snelling, A. A., 2005. "Radiohalos in Granites: Evidence for Accelerated Nuclear Decay." In Radioisotopes and the Age of the Earth: Results of a Young-Earth Creationist Research Initiative, L. Vardiman, A. A. Snelling, and E. F. Chaffin (editors), chapter 3, pp. 101-207 (especially Table 4, p. 188). Institute for Creation Research, El Cajon, CA, and Creation Research Society, Chino Valley, AZ.
- Snelling, A. A. (2005), op. cit.
- Snelling, A. A., and J. Woodmorappe, 1998. "The Cooling of Thick Igneous Bodies on a Young Earth." In Proceedings of the Fourth International Conference on Creationism, R. E. Walsh (editor), pp. 527-545. Creation Science Fellowship, Pittsburgh, PA.
* Dr. Snelling is an associate professor in the Geology Department at ICR.
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Cite this article: Bergman, J. and J. Calkins. 2005. Is the Backwards Human Retina Evidence of Poor Design? Acts & Facts. 34 (10).
[body_edit] =>By Jerry Bergman, Ph.D. and Joseph Calkins, M.D.*
Introduction
The so-called backwards retina is an example of an argument against creationism long ago disproved. Nonetheless, it is one of the most common arguments used by Darwinists to argue that life was not designed. For example, one of the leading American Darwinists, Brown University Professor Kenneth Miller, claimed that a prime example of "poor design" is the fact that light in the human eye has to travel through the neuron layers before it reaches the retina photoreceptors. He argues that this design reflects poorly on an Intelligent Designer and, to Miller, provides clear evidence that no designer exists. Rather, it demonstrates to him that the eye evolved by mutations and natural selection and was not designed. In the words of Miller, an Intelligent Designer would not have placed the neural wiring of the retina on the side facing incoming light. This arrangement scatters the light, making our vision less detailed than it might be, and even produces a blind spot at the point that the wiring is pulled through the light-sensitive retina to produce the optic nerve that carries visual messages to the brain (1999, p. 101).
The blind spot does not reduce vision quality for several reasons. Special tests are normally required to even notice it because the other eye fills in the gap. Furthermore, the brain only uses information from the retina to construct an image and does an excellent job of dealing with other "blind spots" such as shadows, reflection problems, dim light, and dirt on a person's glasses. Shermer claims that the human eye is not just "poorly designed" but the anatomy of the human eye shows that it is anything but "intelligently designed." It is built upside down and backward, with photons of light having to travel through the cornea, lens, aqueous fluid, blood vessels, ganglion cells, amacrine cells, horizontal cells, and bipolar cells, before reaching the light-sensitive rods and cones that will transduce the light signal into neural impulses (2005, p. 186).
Williams adds that not only human eyes, but those of "all other vertebrates, have the functionally stupid upside-down orientation of the retina" and that the "functionally sensible arrangement is in fact what is found in the eye of a squid and other mollusks" (1997, pp. 9-10). An evaluation of this argument reveals it is not only naive, but grossly erroneous.
The Findings of Research
Research by ophthalmologists has clearly shown why the human retina must employ what is called the "inverted" design. An inverted retina is where the photoreceptors face away from the light, forcing the incoming light to travel through the front of the retina to reach the photoreceptors. The opposite placement (where the photoreceptors face the front of the eye) is called a "verted" design. One of the many reasons for the inverted design is, behind the photoreceptors lies a multifunctional and indispensable structure, the retinal pigment epithelium (Martínez-Morales 2004, p. 766). This monolayered tissue contains the black pigment melanin that absorbs most of the light not captured by the retina. This design has the very beneficial effect of preventing light from being reflected off the back of the eye onto the retina, which would degrade the visual image.
The photoreceptors (rods and cones) must also face away from the front of the eye in order to be in close contact with the pigment epithelium on the choroid, which supplies the photoreceptors with blood. This arrangement allows a "steady stream of the vital molecule retinal" to flow to the rods and cones without which vision would be impossible (Kolb 2003, p. 28). The verted design, claimed by Miller to be superior, would place the photoreceptors away from their source of nutrition, oxygen, and retinal (the choroid). This design would cause major problems because rods and cones require an enormous amount of energy for their very high metabolism required in functioning, maintenance, and repair. In addition, because of phototoxicity damage, the rods and cones must completely replace themselves approximately every seven days or so.
The photoreceptors and retinal epithelium absorb an enormous amount of light on a continuous basis when the eyes are open. Because the light is converted largely into heat, the retina must have a very effective cooling system, again provided by the choroidal blood supply directly behind the pigment epithelium. If the pigment epithelium tissue were placed in front of the retina, sight would be seriously compromised. Reversing the retina so that it faces away from the pigment epithelium would also compromise sight to the degree that sight would be impossible because the photoreceptors must be embedded in the retinal pigment epithelium to obtain the nutrients required to function.
This design is extremely critical because the retina requires a high metabolism level due to the continual replacement of the photoreceptors required for vision. Consequently, the retina uses more oxygen and nutrients than almost every other part of the body, requiring an ample blood supply. The verted design would not allow the rods and cones to function properly because of the blood supply required for their high rate of metabolism. If the photoreceptors were in front of the neurons, the blood supply would have to be either directly in the light path of the receptors, or on their side, which would significantly reduce the number of photoreceptors used for sight.
Importantly, placing the retina neural components in front of the photoreceptors does not produce an optical handicap for several reasons. One reason is the neural elements are separated by less than a wavelength of light. Consequently, very little or no scattering or diffraction occurs, and the light travels through this area as if it was at near-perfect transparency. Secondly, when viewed under the microscope, most cells are largely transparent (and it is for this reason stains, such as Eosin-Y and Hematoxylin 2, are needed to better visualize the various cell parts). Consequently, the thin layer of cells in front of the retina rods and cones have a negligible light blocking effect.
In the retina region which has the highest resolution, the central retina (the fovea and, in particular, the foveola), the neurons in front of the photoreceptors are shifted to the side so that light has a direct pathway to them, resulting in the least distortion where it matters most. The high resolution macula also uses cones that are more tightly packed to achieve high resolution color vision. The peripheral retina has lower resolution and consists of mostly rods for black and white vision.
This design is a highly effective method to accurately transmit enormous amounts of data along the optic nerve in a method analogous to the zipping and unzipping of a computer file to facilitate computer file transmission. To function, the transmission must be very rapid because the image needs to be refreshed continuously like a pixel TV image. The eye's design actually appears to be optimized around the physical limits of the visible light spectrum (Calkins 1986).
The pigment epithelium tissue performs numerous other functions critical for retina viability and activity. One is that it phagocytosises ten percent of the mass of each photoreceptor outer segment on a diurnal schedule, and constantly restores the chromophore to 11-cis-retinal from its all-trans configuration, permitting visual pigment synthesis and regeneration (Dowling 1987, p. 198). It also is part of the outer blood-retinal barrier, helps maintain water and ion flow between the neural retina and the choroid, protects against free radical damage, and regulates retinoid metabolism (Martínez-Morales, et al., 2004, p. 766).
This short review covers only a few of the many reasons for the superiority of the existing design of the mammalian retina. Our knowledge now shows that the retina design is superior to what we understood even just a few short years ago. Gratitude rather than impertinence seems the more appropriate response to its ingenious design.
Note: I wish to thank Jody Allen for her review of an earlier draft of this article.
References
- Bergman, Jerry. 2000. "Is the Inverted Human Eye a Poor Design?" Journal of the American Scientific Affiliation. 52(1):18-30, March.
- Calkins, Joseph L. 1986. "Design in the Human Eye." Bible-Science Newsletter. March. pp. 1-2.
- Dowling, John E. 1987. The Retina: An Approachable Part of the Brain. Cambridge, MA: The Belknap Press of Harvard University Press.
- Kolb, Helga. 2003. "How the Retina Works." American Scientist. 91:28-35.
- Martínez-Morales, Juan Ramón, Isabel Rodrigo, and Paola Bovolenta. 2004. "Eye Development: A View from the Retina Pigmented Epithelium." BioEssays. 26:766-777.
- Miller, Kenneth R. 1999. Finding Darwin's God: A Scientist's Search for Common Ground Between God and Evolution. New York: Cliff Street Books.
- Shermer, Michael. 2005. Science Friction: Where the Known Meets the Unknown. New York: Henry Holt/Times Books.
- Williams, George C. 1997. The Pony Fish's Glow and Other Clues to Plan and Purpose in Nature. New York: Basic Books.
* Jerry Bergman is on the Biology faculty at Northwest State College in Ohio. Joseph Calkins is an Ophthalmologist in private practice, formerly Professor of Ophthalmology at Johns Hopkins University.
Cite this article: Bergman, J. and J. Calkins. 2005. Is the Backwards Human Retina Evidence of Poor Design? Acts & Facts. 34 (10).
[typeID] => 2 [visible] => t [pdf] => /i/pdf/imp/imp-388.pdf [publishURL] => backwards-human-retina-evidence-poor-design [publishDate] => 0000-00-00 [authorAsterisk] => f [domainID] => 1 [publication] => [volume] => [issue] => [page] => [author] => Various Authors ) -->Dr. John Baumgardner has more than 30 years of professional experience in large-scale numerical modeling, including 20 years in a computational fluid dynamics group at Los Alamos National Laboratory. Several other researchers who intend to use the computer also have considerable numerical modeling experience. Some of the researchers who plan to use the computer immediately on high-priority projects include Drs. Larry Vardiman, D. Russell Humphreys, Steve Austin, Andrew Snelling, and Dan Criswell.The new computer was paid for by gifts from a generous donor to ICR research last January. However, support for the individual research projects is still needed. If you are interested in donating to the Epiphany project or specifically to any of the associated research projects, please contact Dr. Larry Vardiman at 619/448-0900 or LVardiman@icr.edu. Anticipated computational research topics include modeling of submarine debris flows, submarine cross-bed formation, runaway subduction, rapid mountain uplift, Ice Age climate dynamics, cosmologies without the assumption of the Copernican principle, galactic spiral structure development, limits and costs of natural selection, effects of environmental "noise" on genetic selectibility, effects of near-neutral mutations on long-term genomic stability, genome comparison between human and chimpanzee, as well as many yet to be identified areas of origins research.
[body_edit] =>
Example of computer modeling done by Dr. Larry Vardiman.A new high-speed, 40-processor research computer was delivered to ICR in August and within days began crunching numbers to support new research. ICR is expanding its efforts in numerical simulation and plans to use this computer to perform model development and data analysis in several new areas.
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The computer was custom designed and fabricated by Davis Systems Engineering of Princeton, New Jersey, in collaboration with Dr. John Baumgardner, the new head of ICR's research computing center. It consists of 40 AMD 64-bit Opteron 2 GHz processors, each with 1GB of memory. The unit has the speed of 120 older processors used previously by Dr. Baumgardner in a similar configuration. The multiple processors are connected via gigabit Ethernet through a 24-port crossbar switch. Message Passing Interface (MPI) software allows individual applications to run simultaneously on multiple processors.
The new computer has been named Epiphany, which means to reveal or show forth, particularly to commemorate Jesus as the Christ. Dr. Baumgardner hopes the work on this new resource will lead to breakthroughs in creationist understanding in many fields.
Problems Dr. Baumgardner intends to explore include catastrophic sedimentary processes, regional and global tectonic processes, paleoclimatic/Ice Age studies, early cosmos dynamics with non-Copernican boundary conditions, galaxy dynamics and development, effects of mutation and selection of genomic stability, and detailed human/chimpanzee genome comparison.
Dr. John Baumgardner has more than 30 years of professional experience in large-scale numerical modeling, including 20 years in a computational fluid dynamics group at Los Alamos National Laboratory. Several other researchers who intend to use the computer also have considerable numerical modeling experience. Some of the researchers who plan to use the computer immediately on high-priority projects include Drs. Larry Vardiman, D. Russell Humphreys, Steve Austin, Andrew Snelling, and Dan Criswell.The new computer was paid for by gifts from a generous donor to ICR research last January. However, support for the individual research projects is still needed. If you are interested in donating to the Epiphany project or specifically to any of the associated research projects, please contact Dr. Larry Vardiman at 619/448-0900 or [email protected]. Anticipated computational research topics include modeling of submarine debris flows, submarine cross-bed formation, runaway subduction, rapid mountain uplift, Ice Age climate dynamics, cosmologies without the assumption of the Copernican principle, galactic spiral structure development, limits and costs of natural selection, effects of environmental "noise" on genetic selectibility, effects of near-neutral mutations on long-term genomic stability, genome comparison between human and chimpanzee, as well as many yet to be identified areas of origins research.
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Example of computer modeling done by Dr. Larry Vardiman.











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