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Search results for: dinosaur? in all categories
350 results found.
35 pages of results. 51. Controversy: Catastrophism and Evolution, The Ongoing Debate, by Trevor Palmer (Review) [Journals] [SIS Review]
... Cretaceous extinctions suggests a gradual extinction-rate increase for many groups of organisms, followed by a catastrophe lasting a few tens of thousands of years. In the sea, the extinction of planktonic foraminiferal species spanned 300,000 years below, and some 200,000 to 300,000 years above, the Cretaceous-Tertiary boundary [9 10]. The dinosaurs might have suffered a gradual extinction [11], although a sudden extinction is suggested by the Hell Creek Formation in eastern Montana and western North Dakota [12 but see [13]. Dinosaur remains are also found in Maastrichtian (terminal Cretaceous) beds on all continents but none are recorded from overlying Palaeocene beds, a fact supporting ...
52. Book Reviews [Journals] [SIS Workshop]
... such as the possible meteoric origin of some life ingredients and the tectonic plate theory of drifting continents, it is not until half way through the series that he signifies that he has also had the opportunity to consider catastrophic theories. The depth of his consideration must surely be a classic: There have been many suggestions as to what brought the dinosaurs to their end. The more extreme require some kind of global catastrophe. They can be disregarded because, after all, it was only the dinosaurs that disappeared, not the whole of animal life - or even all the reptiles. Catastrophism is thereby utterly dismissed in two short sentences, whereas it takes a lengthy paragraph to argue against ...
53. Gravity and Pterodactyls: More Points to Consider [Journals] [Aeon]
... or land creatures attain the scale of those in the past. Ted Holden's observation that nothing over 35 lbs. can get off the ground in today's world [2 ] seems valid. Holden also calculated that the maximum weight for a land animal in today's world has to be less than 10 tons. [3 ] The weight of some dinosaurs has been estimated as much as 90 tons. The strength of an animal varies according to the area of its muscle cross-section- which means by the square. Its weight varies by the cube, so that it becomes proportionally weaker as it increases in size. A creature 3 times the size of another would be 3 x 3, ...
54. Monitor [Journals] [SIS Workshop]
... be crippled by a ferocious meteor storm and one might occur in 3 or 4 years time. During such a storm meteors occur at up to 10,000 times the normal rate and the events happen several times a century as Earth passes through a particularly active meteor stream EVOLUTION Chinese puzzle Earthwatch Magazine July/August 1995, p. 7 Dinosaur nest sites in southeast China, when compared to fossil sites in North America supposed to be contemporaneous, provide a couple of problems for palaeontologists. The dinosaurs appear to still exist 2 Myrs after they disappeared elsewhere, yet immediately above them are the remains of large mammals far more advanced than expected for that time. Perhaps a dating rethink ...
55. Monitor [Journals] [SIS Workshop]
... comes out in favour of the old identification: Ahhiyawa = Achaian Greeks. (The "Ekwesh" of the Sea Peoples referred to by Ramesses III are considered by many to be one and the same as the Ahhiyawa). M. J. Mellink considers the archaeological evidence and arrives at a similar conclusion to Guterbock. Radiation Death for Dinosaurs sources: SAN FRANCISCO CHRONICLE 1.7 .83 INTERNATIONAL HERALD TRIBUNE 3.7 .83 NEW SCIENTIST 14.7 .83, p. 99 Aristes Yayanos's theory to account for the terminal Cretaceous disaster received wide publicity. Yayanos's paper in NATURE 390, p. 797, proposed that the mass extinctions - particularly affecting the larger ...
56. Quantavolution and Solaria Binaria [Journals] [SIS Internet Digest]
... is, the theory of dynamic physics may eventually treat most or all natural energy operations as originating in electricity. Gravitation has lost prestige as an all-explainer in physics and astronomy, and might conceivably be dispensed with in quantavolution theory. Quantavolutions are catastrophes, but they are constructive as well as destructive. For example, if you prefer mammals to dinosaurs as your pets, then possibly you would regard the comets or meteoroids that struck the Earth at the end of the Cretaceous and put an end to the dinosaurs as a stroke of good luck, a quantavolution that was on the whole favorable from a mammalian and human point of view. When a quantavolution occurs, the phenomena of air ...
57. Our Universe: Unlocking its Mysteries [Journals] [SIS Internet Digest]
... interact electrically if they are within each other's protective plasma sheaths (magnetospheres). Electrical repulsion that is alternatively felt (when planets' plasma sheaths intersect) and then not felt (when the sheaths do not intersect) could circularize orbits relatively quickly. In addition there is strong evidence that gravity and mass itself is dependent on electrical charge. Dinosaurs Are Impossible in Today's Gravity: Another question that relates to the enigma of how Earth is different today from ancient times is the size of the giant dinosaurs. Ted Holden concludes that, given what we now know about mass to muscle ratio, there is no way those huge beasts could have held their heads up, much less walked ...
58. Briefings [Journals] [SIS Review]
... Crew and Gunnar Heinsohn. - R.M .L . Science Rules The word "Velikovskian" has at last passed into the language, and Velikovskian listeners to BBC's Radio 3 were promised something of a treat when the Radio Times write-up of the "Scientifically Speaking" programme for 5th March likened the Alvarez theory of the extinction of the dinosaurs (see "Extinguishing Marks", SISR IV:I , p. 5) to "some Velikovskian catastrophe". Unfortunately, usage of the word, like that of "aggravate", "chronic" et al., is a little lax, and a far from promising start was made in the programme by the reference ...
59. Letters [Journals] [SIS Workshop]
... other body might undergo tippling, or for that matter, both, if the approaching body was also approximately spheroid. If the approaching body was rather more like the bar magnet and elongated in shape (i .e . a comet with appreciable electro-magnetic field) then tippling should always be the case. Nel Kluitman, Campestro, Switzerland. Dinosaur Graveyards Dear Sir, As regards "Death of the Dinosaurs" in Workshop vol.2 no.4 pp.6-7, why do so many commentators make such a mystery of the dinosaur extinction? There is much more evidence for the manner of their extinction than for other theories which scientists seem quite happy to accept as fact, ...
60. Monitor [Journals] [SIS Workshop]
... at some extinction horizons. Now two researchers from Florida have a new volcanic theory which could explain the signs others interpret as due to impacts. They propose that periodic instabilities at the base of the Earth's mantle cause injections of hot magma at the cool base of continents, which would produce the pressures necessary to shock quartz crystals. Polar Region Dinosaurs sources: Discover December 1988, p. 6; New Scientist 8.4 .89, p. 27 New finds of small dinosaurs in Australia indicate that they lived near the South Pole in the early Cretaceous Period. Earlier ideas of warm polar regions in this period have been challenged by the finding of glacially deposited boulders in the ...
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