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740 results found.
74 pages of results. 101. Comets And Catastrophes [Journals] [Pensee]
... . T. Wilson have both said that the petroleum came as rain from above. While this is open to discussion, the fact of the matter still is that the chemistry of petroleum found in recent sediments . . . and that found in ancient sediments are not the same. One would still have to explain the ways in which each ... "One can readily imagine a deep layer of tar covering the surface." We might also take note of the fact that L. P. Gaucher, writing in Chemical Technology [1972], argues that the Earth must have received continual rains of oil early in its history, owing to chemical reactions in the primitive atmosphere. When ...
102. Radiometric Dating: Is the "Decay Constant" Constant? [Journals] [Pensee]
... J. F. Emery, et al., Nuclear Science and Engineering 48 (1972): 319. 8. J. L. Anderson, Journal of Physical Chemistry 76 (1972): 3603. 9. J. L. Anderson and G. W. Spangler, Journal of Physical Chemistry 77 (1973): 3114 ... significantly by any possible environmental influence. With the exception of internal conversion and K-capture decay processes which have been shown to be influenced in a minor way as a function of chemical state, radioactive decay constants are assumed in present nuclear theory to be substantially invariable even when the nuclei are subjected to massive environmental changes. Thus much of the earlier ...
103. The Obliteration of Human Signs [Books] [de Grazia books]
... model to consult in paleontology. But the field has not gone far beyond associating some life forms with some rock strata and not even this is done with full microscopy and chemistry on computerized data banks. The leading question, "How many species have existed at a given point in time, or ever, or even at a given place ... 000 years ago. After much reading and discussion, I came to realize some years ago that there was no simple checklist of kinds of disaster - all the forces, chemicals, and conditions that can destroy the biosphere. But before I came to realize it, a long time passed when I could not even think of the need for ...
104. Stellar Thermonuclear Energy: A False Trail? [Journals] [Kronos]
... followed this trail for a long time, tell part of the story: "For the past 15 years we have tried, in collaboration with many colleagues in astronomy, chemistry, and physics, to understand and test the theory of how the sun produces its radiant energy (observed on the earth as sunlight). All of us have ... basic data as the ages of the stars and the [cosmic] abundances of the elements. The parameters of the sun (its age, mass, luminosity, and chemical composition) are better known than those of any other star, and it is in the simplest and best understood stage of stellar evolution, the quiescent main sequence stage ...
105. Velikovsky and Venus: A Preliminary Report on the Pioneer Probes [Journals] [Kronos]
... starting at 2.8 and continuing past 3.8 ) and again in the 8-13-micron region. . . . "In the hot and oxidizing atmosphere of Venus, chemical reactions must be occurring. Mueller, writing on the Origin of the Atmosphere of Venus, ' referred to the instabilities of the hydrocarbon compounds in an anhydrous, oxidizing ... atmosphere burning? Was some extreme chemical reaction taking place that produced a visible glow? Or was the atmosphere reflecting a glow from the ground - volcanic activity, or a chemiluminescent reaction at the surface? " I think we were looking at the fires of hell, ' Dr. Donahue ventured. Whatever was there probably happens all over the ...
106. Viva Lamarck: Renewed Discussion on the Inheritance of Acquired Characteristics [Journals] [Aeon]
... of his ideas. A cumbersome and disjointed style of writing, a penchant for speculation and offering grandiose interpretations of the various natural sciences, a reliance upon outmoded understandings of chemistry and physics, all conspired to render Lamarck's views unpalatable to the majority of his scientific peers.(20) Here again, however, it is well-known that other ... strictly to multicellular life forms and was based on the assumption that no new changes could arise in the germ-plasm once that level of development was reached.(106) A chemically induced mutation, it should be noted, would be an acquired character according to Weismann's original formulations. Years later, upon the discovery of radioactive and chemical mutagens, ...
107. Monitor [Journals] [SIS Review]
... , and obviously knew how to sterilise wounds. The diets of ancient people are often reconstructed from an analysis of their hair but some British archaeologists are now arguing that hair chemistry can change after centuries of burial and such results should be regarded with caution. Syphilis is supposed to have been brought to Europe from the New World after the Columbus ... that of its neighbours Earth and Venus, where has it all gone? One possible explanation was that an early carbon dioxide atmosphere became locked up in carbon sediments due to chemical weathering but unfortunately surveys of the Martian surface have failed to find such sediments. So another suggestion is that impacts during the early days of the Solar System knocked the ...
108. Thoth Vol VIII, No 1: Mar 15, 2004 [Journals] [Thoth]
... from this data we can derive the elemental composition of martian soils and rocks," said Dr. Johannes Brueckner, rover science team member from the Max Planck Institute for Chemistry, Mainz, Germany. The instrument found the most prevalent elements in the soil patch were silicon and iron. It also found significant levels of chlorine and sulfur, ... which of these time capsules to open." Sashimi appears dustier than Adirondack. The dust layer could obscure good observations of the rock's surface, which may give information about chemical changes and other weathering from environmental conditions affecting the rock since its surface was fresh. Also, Sashimi is more pitted than Adirondack. That makes it a poorer candidate ...
109. The Knowledge Industry [Books] [de Grazia books]
... with the press and radio systems. He knew the vast skies there like a Polynesian navigator. His lifelong asthma kept him in a lifelong course in advanced nutrition, organic chemistry, and atmospheric science. Then he read into myth and legend, and there was no stopping him. In every picture he discovered fresh signs. Aside from his ... comparative literature, archaeology (worldwide), geology, fossil paleontology, soil chemistry, electromagnetics, astrophysics, sociology of sex, ecology, climatology, oceanography, theology, chemical and fossil dating, psychology of infancy and of stress, epistemology, the history of science, and political science for the origins of theocracy, bureaucratic system and collective ...
110. Falling Dust and Stone [Books] [de Grazia books]
... From: The Lately Tortured Earth, by Alfred De Grazia Home | Issue Contents PART TWO: EXOTERRESTRIAL DROPS Reasoning from exoterrestrial exploration and the shapes and chemistry of the Earth's crust, and with a strong assist from early human legends, the origins of some material of the Earth's surface is assigned to fall-outs. They range from invisible gases ... further, that tillites may be exoterrestrial deposits occurring in both hot and cold climatic period, wreaking quick destruction upon the biosphere. Cyr and Sun point out that tektites are chemically similar to loess. This would suggest a possible exoterrestrial origin for loess and a coincidence of the two substances. Tektites are jets of fused silica. They range from ...
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