A number of factors could affect the relation of C-14 concentration to real time. The author discusses the effects on C-14 dates of cosmic ray intensity, geomagnetic field strength, water vapor concentration, and dilution by the biosphere carbon. Published in Origins v. 6, n. 1.
A review of the book, Principles of Isotope Geology. This is an authoritative textbook on radioisotope dating that provides useful background information, regardless of philosophical persuasion. Published in Origins v. 6, n. 1.
The Coconino Sandstone has traditionally been interpreted as wind-deposited, but fossil trackways in this formation point to underwater deposition. Published in Origins v. 5, n. 2.
Review of the article, Biologists, Help! An appeal by a secular scholar for evolutionists to explain why so many fundamental suppositions of evolutionary theory are so poorly supported by the data. Published in Origins v. 5, n. 2.
A review of the book, Puncuated Equilibria: The Tempo and Mode of Evolution Reconsidered. The new theory of punctuated equilibria acknowledges the gaps in the fossil record used by creationists as evidence against evolution, and explains them as due to the nature of the speciation process. However, the new theory applies only to gaps between species, and does not help with the problem of gaps between higher taxa. Published in Origins v. 5, n. 1.
Portions of the DNA information are not present in mRNA transcribed from the DNA, in plants and animals, as opposed to bacteria. The DNA sequences that are missing in the m-RNA are called introns, and seem to be widespread. Published in Origins v. 5, n. 1.
Radiometric dates are subject to uncertainties due to the assumptions inherent in the method and to the effects of non-natural changes in the earth's crust on the third day of creation and during the biblical Flood. Published in Origins v. 4, n. 2.
Tektites are formed from molten target rocks by an extraterrestrial impact. Australian tektites dated at about 700,000 years are found resting on soil dating less than 10,000 years old. This discrepancy is unresolved at present, and provides an opportunity for further research that could be very significant for the question of radiometric dating. Published in Origins v. 4, n. 2.
A review of the book, Variation and Fixity in Nature. The nature of created kinds (baramins) is discussed and evaluated. Published in Origins v. 4, n. 2.
Rabbits have a mechanism for re-processing food after it has fermented in the cecum. This is functionally equivalent to the cud-chewing of cattle, in which fermented food is redirected so that the nutrients produced by bacterial action can be utilized by the mammal. Published in Origins v. 4, n. 2.
The application of the laws of physics and chemistry to the question of the origin of life poses some very basic questions and answers which are evaluated by the author. Published in Origins v. 4, n. 1.
There appears to be no persuasive evidence that the atmosphere has ever differed substantially from its present composition. The presence of oxygen in the earth's original atmosphere would have a dramatic inhibitory effect on the synthesis and accumulation of organic molecules and would virtually rule out the possibility that life arose in this way. Published in Origins v. 3, n. 2.
The Mars Viking Landing failed to find evidence for life on Mars. The Lander found carbon dioxide in the Martian atmosphere but no organic material in the Martian soil. Published in Origins v. 3, n. 2.
A review of the book, How Life Began. The view presented is a kind of theistic evolution. Published in Origins v. 3, n. 2.
Similarities in structure, or homologies, are what one would expect if all of life had been designed by a single Creator. Homologies are not evidence for evolution. Published in Origins v. 3, n. 2.
Several scientists have acknowledged that the evidence for evolution is deficient, and new approaches and information are needed. Published in Origins v. 3, n. 1.
Our study reveals that chemical evolution does not provide a satisfying solution to the question of the origin of life. Published in Origins v. 3, n. 1.
A living mollusk from the eastern Pacific is similar to a Silurian fossil thought to be extinct for millions of years. This "living fossil" (a "Lazarus species") is a major discovery in mollucsan biology. Published in Origins v. 3, n. 1.
Some recent data raises serious questions regarding the plausibility of the model of a reducing atmosphere in early earth history. Published in Origins v. 2, n. 2.
The Glen Rose region of the Paluxy River does not provide good evidence for the past existence of giant men, nor does it provide evidence for the coexistence of such men and the giant dinosaurs. Published in Origins v. 2, n. 2.
