作者: outer-ear 時間: 2025-3-21 22:39 作者: Cultivate 時間: 2025-3-22 03:25
Michelle C. LangleyHighlights the importance of including osseous projectile weaponry in investigations of Pleistocene cultural complexity.Sheds new light on how modern human cultures developed and changed.Maximizes rea作者: explicit 時間: 2025-3-22 07:02 作者: ULCER 時間: 2025-3-22 11:16 作者: 細胞學 時間: 2025-3-22 16:30 作者: Little 時間: 2025-3-22 19:22
in the distant gutter and the destitute alcoholic hidden in the back room in somebody else’s run-down house are fading. The “All-American” imagery of two parents in every home, two cars in every garage, and a chicken in every pot has matured and wearied. It now includes Valium or some other stress 作者: debris 時間: 2025-3-23 01:08 作者: FIN 時間: 2025-3-23 03:52
Ivor Karavanic′years. Initially these efforts centered about means for increasing maximum boiling heat-transfer rates, particularly with respect to water. However, as interest in space missions increased, many of these efforts were redirected toward the heat-transfer and liquid behavior conditions anticipated unde作者: 我就不公正 時間: 2025-3-23 06:08 作者: 極力證明 時間: 2025-3-23 12:25
Nejma Goutas orbiting satellite, the gravitational field may closely approach zero. On the surface of the moon or the inner planets of our solar system, the gravitational field is less than that on earth. Heat-transfer processes such as free convection, condensation and boiling depend on the gravitational body 作者: FLAT 時間: 2025-3-23 14:28 作者: Visual-Field 時間: 2025-3-23 21:48 作者: intangibility 時間: 2025-3-24 01:32 作者: Ambiguous 時間: 2025-3-24 03:24
Fran?ois-Xavier Chauvièrewithin falling systems. As a consequence of theoretical results established in Refs. 1, 2, it follows that in order to produce observable hydrodynamic phenomena typical of low or zero gravity conditions within an enclosure falling in the atmosphere, the load factor (that is, the aerodynamic decelera作者: absolve 時間: 2025-3-24 07:45
Late Pleistocene Osseous Projectile Technology and Cultural Variability, This chapter situates the study of osseous projectile weaponry in this wider context of archaeological research, before outlining the challenges that this field currently faces. A brief overview of the evidence for Pleistocene osseous projectile weaponry is then presented in order to demonstrate th作者: 盲信者 時間: 2025-3-24 13:44
Osseous Projectile Weaponry from Early to Late Middle Stone Age Africather purposes, associated faunal and lithic assemblages, palaeoenvironment, age of the material, associated hominins and their cognitive capacities, criteria used to identify complex technology and cognition, and how innovative technologies might have developed and spread. Here we summarize what is 作者: 窗簾等 時間: 2025-3-24 16:08 作者: 不公開 時間: 2025-3-24 19:53 作者: Hormones 時間: 2025-3-24 23:39 作者: gene-therapy 時間: 2025-3-25 03:51 作者: 商業(yè)上 時間: 2025-3-25 11:27
Gravettian Projectile Points: Considerations About the Evolution of Osseous Hunting Weapons in Francdent in hunting weapons. Some Aurignacian points (split-based points) disappear from the archaeological record, others (simple-based points) remain, and new types (bevelled based points) appear, some of which will persist long after the Gravettian. Others become characteristic of the Gravettian, wit作者: 朝圣者 時間: 2025-3-25 14:54
Upper Paleolithic Bone and Antler Projectiles in the Spanish Mediterranean Region: The Magdalenian Pte in the Upper Paleolithic from the southwest of Europe. We have analyzed 334 pieces from an assemblage that includes well over 2000 finished objects, and consider these weapons as a representative sample from two well differentiated Magdalenian phases. The first period studied dates to the Badegou作者: 現(xiàn)任者 時間: 2025-3-25 16:49
A Review of the Osseous Projectile Points from the Upper Paleolithic of Portugalre recovered from nine archaeological sites, located in two geographic regions: Estremadura and Algarve. The majority of the Upper Paleolithic osseous assemblages from Portugal come from old excavations, and as early studies of the points are rare or only preliminary in nature, our understanding of 作者: fiscal 時間: 2025-3-26 00:03
Diversity and Evolution of Osseous Hunting Equipment During the Magdalenian (21,000–14,000 cal BP)emblages include antler points hafted using a variety of technological designs, unilaterally and bilaterally barbed points, self-barbed points, bivalve points made of two half round rods (.), and composite antler/lithic projectile points, not to mention foreshafts and spearthrower elements. As perha作者: 使腐爛 時間: 2025-3-26 03:09 作者: 混亂生活 時間: 2025-3-26 06:32 作者: Axillary 時間: 2025-3-26 12:23
The Walandawe Tradition from Southeast Sulawesi and Osseous Artifact Traditions in Island Southeast , Indonesia. Microscopic observations of use traces and manufacturing techniques are presented as well as metrical observations and morphological classifications. The points show a suite of temporal trends apparently related to a shift from a predominant use as hafted projectile points to their grow作者: CAMEO 時間: 2025-3-26 16:25 作者: 預(yù)兆好 時間: 2025-3-26 18:41 作者: larder 時間: 2025-3-26 22:06
d to create new experiences, new highs, new emotions, new insights, and new abilities, are emerging. These “designer drugs” are created in clandestine laboratories and are designed to stay one step ahead of the law, altering illegalized molecular compounds into legal forms.作者: 朦朧 時間: 2025-3-27 04:42
d to create new experiences, new highs, new emotions, new insights, and new abilities, are emerging. These “designer drugs” are created in clandestine laboratories and are designed to stay one step ahead of the law, altering illegalized molecular compounds into legal forms.作者: 使高興 時間: 2025-3-27 05:46 作者: 小樣他閑聊 時間: 2025-3-27 12:34
Ivor Karavanic′ with zero g, and no g can be left for future speculations and explorations. Our immediate interest in zero g was the mechanism of heat transfer to cryogenic liquid propellants that might be employed in those space vehicles requiring a long coasting period.作者: cogitate 時間: 2025-3-27 17:15 作者: 阻擋 時間: 2025-3-27 21:46 作者: FICE 時間: 2025-3-28 01:06 作者: 大酒杯 時間: 2025-3-28 04:22 作者: 擺動 時間: 2025-3-28 07:55
Michelle C. Langley,Jean-Marc Pétillon,Marianne Christensen theory..An expansion of the kinetic energy as a quadratic function of the generalized velocities is derived in Ref. 2 in terms of these coefficients. A Langrangian function is subsequently set up by combining the above result with expressions of potential (surface and gravitational) energy. The mai作者: synchronous 時間: 2025-3-28 11:40 作者: Condense 時間: 2025-3-28 15:12 作者: jaundiced 時間: 2025-3-28 21:04 作者: 和平主義 時間: 2025-3-28 23:57 作者: inclusive 時間: 2025-3-29 05:11 作者: Carbon-Monoxide 時間: 2025-3-29 10:34
Bone Projectile Points in Prehistoric Australia: Evidence from Archaeologically Recovered Implementsg to a variety of reasons including taphonomic processes and the ready availability of alternative materials, the Australian data nevertheless contributes to a greater understanding of Pleistocene technological choices as well as cultural variability during this period.作者: callous 時間: 2025-3-29 14:02 作者: implore 時間: 2025-3-29 17:15 作者: MIRE 時間: 2025-3-29 21:55
Ken Aplin,Sue O’Connor,David Bulbeck,Philip J. Piper,Ben Marwick,Emma St Pierre,Fadhila Aziz作者: Antecedent 時間: 2025-3-30 01:38 作者: Abbreviate 時間: 2025-3-30 06:14 作者: 免除責任 時間: 2025-3-30 08:43
Bone Point Functional Diversity: A Cautionary Tale from Southern Africaorous use-wear analyses to establish their function, yet it is often taken for granted that similar tools found in the more recent Holocene were used as projectile tips. This paper cautions against the specious imputation to projectile technology of all bone points based solely on morphometric criteria.作者: degradation 時間: 2025-3-30 16:14
A Review of the Osseous Projectile Points from the Upper Paleolithic of Portugalology, and focus on several aspects including fracture and stigmata patterns remaining from their manufacture and use. As a preliminary conclusion, it appears that these osseous projectile points share features with similar others from the Southern Iberian region.作者: 土坯 時間: 2025-3-30 18:01
Bone Technology from Late Pleistocene Caves and Rockshelters of Sri Lankaal information, indicates that . in Sri Lanka were using osseous technologies as part of a dedicated rainforest subsistence strategy by at least 36,000 cal years BP. Future work on the Sri Lankan material should acknowledge the importance of placing bone toolkits within their wider environmental and social context.作者: 熔巖 時間: 2025-3-31 00:31 作者: rods366 時間: 2025-3-31 01:59
Book 2016ough cross-cultural and temporal comparison of manufacturing methods, design, use methods, and associated technology, chapters in this volume identify and discuss differences and similarities between these Pleistocene cultures. The central research questions addressed in this volume include: (a) how作者: hemoglobin 時間: 2025-3-31 07:35 作者: aqueduct 時間: 2025-3-31 09:38 作者: 離開可分裂 時間: 2025-3-31 14:31
Spanish Aurignacian Projectile Points: An Example of the First European Paleolithic Hunting Weapons complex processes applied in its transformation, are reflected in the systematic shaping and resharpening of the projectile points. Issues surrounding these processes in Spanish Aurignacian split-based and simple-based points are outlined and discussed.作者: 青石板 時間: 2025-3-31 17:46 作者: Foolproof 時間: 2025-4-1 01:34
