Boomerang Story: a Surprising the Object Certainly Had Some of the Key Discovery in Poland,2019’ Characteristics of a Boomerang in Shape and Form
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Here It Comes Again!
Here It Comes Again! Boomerangs Someone once said that if you understand the principles governing the flight of boomerangs, there is nothing about aeronautics you won’t understand. The Australian Aborigines 10,000 years ago created an incredibly complex flying device that operates because of the interaction of many scientific principles and laws including. Bernoulli’s Principle-The pressure of a fluid, such as air, decreases as its velocity over a surface increases. (Generates lift from curved upper surface of boomerang.) Newton's First Law of Motion-An object continues in a state of rest or in motion in a straight line unless it is acted upon by an unbalanced force. (Describes flight of nonreturning boomerangs and why gyroscopic precession is necessary for returning boomerangs.) Newton's Second Law of Motion-The acceleration of an object is directly proportional to the force acting upon it and inversely proportional to the object's mass. (Describes the amount of lift produced from the underside of a boomerang.) Newton's Third Law of Motion-For every action force there is an opposite and equal reaction force. (Produces lift from the underside of the boomerang.) Gyroscopic Precession-Torque on the axis of rotation of the flying boomerang causes it to precess or change its direction. (Causes the boomerang to circle. Note: Nonreturning boomerangs do not experience this effect.) Drag-Drag forces (friction with air) slow boomerang flight. (By slowing the boomerang, drag gradually reduces lift.) Gravity-Gravity's attraction brings the boomerang back to Earth. (Causes boomerang to lose altitude. Boomerangs, or "booms" as they are called Grade Level by enthusiasts, are curved sticks of wood or plastic that either return to the thrower or This lesson is designed for middle to junior travel in straight paths for long distances. -
“Politics” and “Religion” in the Upper Paleolithic: a Voegelinian Analysis of Some Selected Problems
“Politics” and “Religion” in the Upper Paleolithic: A Voegelinian Analysis of Some Selected Problems DRAFT ONLY Barry Cooper University of Calgary Paper prepared for APSA Annual Meeting Seattle WA September, 201 2 Outline 1. Introduction 2. Philosophy of consciousness 3. “Politics” 4. “Religion 5. Conclusions 3 “Politics” and “Religion” in the Upper Paleolithic 1. Introduction The Voegelinian analysis referred to in the title refers primarily to two elements of the political science of Eric Voegelin. The first is his philosophy of consciousness, systematically developed first in Anamnesis.1 The second is his concept of compactness and differentiation of experience and symbolization. It will be necessary to touch upon a few other Voegelinian concepts, notably his understanding of “equivalence,” but for reasons of space only a summary presentation is possible. A second preliminary remark: the terms “Religion” and “Politics” are in quotation marks because their usage in the context of the Upper Paleolithic is anachronistic, though not entirely misleading. The meaning of these terms is commonsensical, not technical, and is meant to indicate what Clifford Geertz once called “oblique family-resemblance connections” among phenomena.2 Third, as a matter of chronology the Upper Paleolithic conventionally refers to the period between 50,000 and 10,000 years ago (50KYBP- 1 Voegelin refined his analysis of consciousness in the last two volumes of Order and History. These changes are ignored on this occasion. 2 Geertz, Life Among the Anthros, ed. Fred Inglis (Princeton: Princeton University Press, 2010), 224. 4 10KYBP). It corresponds in Eurasian periodization approximately to the Later Stone Age in Africa. -
Human Origin Sites and the World Heritage Convention in Eurasia
World Heritage papers41 HEADWORLD HERITAGES 4 Human Origin Sites and the World Heritage Convention in Eurasia VOLUME I In support of UNESCO’s 70th Anniversary Celebrations United Nations [ Cultural Organization Human Origin Sites and the World Heritage Convention in Eurasia Nuria Sanz, Editor General Coordinator of HEADS Programme on Human Evolution HEADS 4 VOLUME I Published in 2015 by the United Nations Educational, Scientific and Cultural Organization, 7, place de Fontenoy, 75352 Paris 07 SP, France and the UNESCO Office in Mexico, Presidente Masaryk 526, Polanco, Miguel Hidalgo, 11550 Ciudad de Mexico, D.F., Mexico. © UNESCO 2015 ISBN 978-92-3-100107-9 This publication is available in Open Access under the Attribution-ShareAlike 3.0 IGO (CC-BY-SA 3.0 IGO) license (http://creativecommons.org/licenses/by-sa/3.0/igo/). By using the content of this publication, the users accept to be bound by the terms of use of the UNESCO Open Access Repository (http://www.unesco.org/open-access/terms-use-ccbysa-en). The designations employed and the presentation of material throughout this publication do not imply the expression of any opinion whatsoever on the part of UNESCO concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. The ideas and opinions expressed in this publication are those of the authors; they are not necessarily those of UNESCO and do not commit the Organization. Cover Photos: Top: Hohle Fels excavation. © Harry Vetter bottom (from left to right): Petroglyphs from Sikachi-Alyan rock art site. -
Boomerang Flight Dynamics
Boomerang Flight Dynamics John C. Vassberg∗ Long Beach, California 90803 Aerodynamics Lecture 30th AIAA Applied Aerodynamics Conference New Orleans, Louisiana 28 June, 2012 Abstract Aerodynamic characteristics and flight dynamics of boomerangs are investigated. A basic aerodynamic model, developed in the 1960’s, is expanded upon using Blade Element Theory. The new aerodynamic model is coupled with a gyroscope model for rudimentary analyses. Some significant findings are made regarding the radius of a boomerang’s circular flight path, the required inclination angle of its axis-of-rotation, its trim state, as well as its dynamic stability. These discoveries provide a basic understanding of how the interplay between aero- dynamic forces and moments, and gyroscopic precession combine to return the boomerang to its rightful owner by way of a circular flight path. A traditional V-shaped boomerang design is developed as a case study for further detailed analyses. Unsteady Reynolds-averaged Navier-Stokes solutions provide accurate aerodynamic characteristics of the subject boomerang. The high-fidelity aerodynamic model is coupled with the equations of motion to provide accurate six-degree-of-freedom simulations of boomerang flight dynamics. Boomerang orientation during its flight trajectory is described by the classical Euler angles. ∗Boeing Technical Fellow, Fellow AIAA, Boomerang Novice Copyright c 2012 by John C. Vassberg. Published by the American Institute of Aeronautics and Astronautics with permission. Vassberg, Aerodynamics Lecture, New Orleans, -
A Typology of the Traditional Games of Australian Aboriginal and Torres Strait Islander Peoples
A Typology of the Traditional Games of Australian Aboriginal and Torres Strait Islander Peoples Ken Edwards Author Ken Edwards has studied health and physical education, environmental science and sports history. He has taught health and physical education at both primary and secondary school level and has been a Head of Health and Physical Education at various schools. Ken completed a Ph.D. through UQ and has been an academic at QUT and Bond University and is now an Associate Professor in Sport, Health and Physical Education at USQ (Springfield Campus). Ken has had involvement in many sports as a player, coach and administrator. Wener ganbony tilletkerrin? What shall we play (at) first (Language of the Western people of Victoria) A Typology of the Traditional Games of Australian Aboriginal and Torres Strait Islander Peoples Ken Edwards Artwork by Aboriginal artist Maxine Zealey (of the Gureng Gureng people in Queensland). Copyright © 2012 by Ken Edwards. All rights are reserved. No portion of this book may be reproduced in any form or by any means without the written permission of the Copyright owner. ISBN 978-0-9872359-0-9 Paper size: 16.5cms X 23 cms Page printing for ebook: Scale to fit A4 Acknowledgements Great excitement existed amongst the players in this game, which was begun in this manner: each player had one of these toys in his hands, standing at a mark on the ground some 30 yards or 40 yards from the disc. The thrower standing on the mark would measure the distance with his eye, and turning round would walk some few yards to the rear, and suddenly turning to the front would run back to the mark, discharging his weitweit with great force at the disc. -
Astronomical Symbolism in Australian Aboriginal Rock Art
Rock Art Research 2011 - Voillme 28, Number 1, pp. 99-106. R. P. NORRIS and D. W. HAMACHER 99 KEYWORDS: Aboriginal - Rock art - Archaeoastronomy - Ethnoastronomy - Australia ASTRONOMICAL SYMBOLISM IN AUSTRALIAN ABORIGINAL ROCK ART Ray P. Norris and Duane W. Hamacher Abstract. Traditional Aboriginal Australian cultures include a significant astronomical component, perpetuated through oral tradition and ceremony. This knowledge has practical navigational and calendrical functions, and in some cases extends to a deep understanding of the motion of objects in the sky. Here we explore whether this astronomical tradition is reflected in the rock art of Aboriginal Australians. We find several plaUSible examples of depictions of astronomical figures and symbols, and also evidence that astronomical observations were used to set out stone arrangements. With these exceptions, astronomical themes do not seem to appear as often in rock art as in oral tradition, although it is possible that we are failing to recognise astronomical elements in rock art. Future research will attempt to address this. Introduction about these constellations. This may indicate either The dark night skies of Australia are an important cultural convergent evolution, reflecting the subjective part of the landscape, and would have been very obvious masculine and feminine appearance of Orion and the to Aboriginal people living a traditional lifestyle. So it Pleiades respectively, or else suggest a much earlier is unsurprising to find that stories of the Sun, Moon, story common to both cultural roots. planets and constellations occupy a significant place in In addition to these narratives, the skies had the oral traditions of Aboriginal Australians. This was practical applications for navigation and time keeping first described by Stanbridge (1857), and since noted (e.g. -
From PPN to Late Neolithic (Part II Is Refering to Copper Age) We Start
Acta Terrae Septemcastrensis, XVIII, 2019 DOI: 10.2478/actatr-2019-0002 Are there cities and fairs in the neolithic? Part I – from PPN to late Neolithic (Part II is refering to Copper Age ) Gheorghe Lazarovici Cornelia-Magda Lazarovici Keywords: fortifications, defensive ditches, palisades, fairs, proto-urban, bastions, temples, sanctuaries, conclaves Abstract: In this study we have resumed the problem of Neolithic settlements with a complex architecture (defense systems with ditches, palisades, towers, bastions; residential buildings; cult constructions; social constructions) which support the idea of a proto-urban organization since the PPN. We have analyzed current definitions of cities and fairs, which mainly reflect situations from classical antiquity and the Middle Ages, but they cannot be applied to prehistoric realities, which, according to interdisciplinary research, offer another perspective. We also believe that religion too has played an important part in these sites, some of them being real centers of worship. We start our study with some definitions from Dexonline. CITY, cities, 1. A complex form of human settlement, with multiple municipal facilities, usually with administrative, industrial, commercial, political and cultural functions. An important human settlement with a large population, with businesses and institutions, which is an industrial, commercial, cultural, political and administrative center. City (Hung. város, Bg. Serb. varoš, city; Turk. varoš, suburb, alb. varróš, ngr. varósi). The association of a large number of houses and courtyards lined up along the streets. Fair, 1. once city: villages and fairs. From the above definitions, an important function has been forgotten, the religious function. We consider it important, because in Prehistory, and especially in the Pre-Pottery Neolithic (PPN), just as the first “cities” appeared, there were monumental temples and sanctuaries (Schmidt 1995; 2000; Hauptmann, Schmidt 2000; Schmidt K. -
Sing! 1975 – 2014 Song Index
Sing! 1975 – 2014 song index Song Title Composer/s Publication Year/s First line of song 24 Robbers Peter Butler 1993 Not last night but the night before ... 59th St. Bridge Song [Feelin' Groovy], The Paul Simon 1977, 1985 Slow down, you move too fast, you got to make the morning last … A Beautiful Morning Felix Cavaliere & Eddie Brigati 2010 It's a beautiful morning… A Canine Christmas Concerto Traditional/May Kay Beall 2009 On the first day of Christmas my true love gave to me… A Long Straight Line G Porter & T Curtan 2006 Jack put down his lister shears to join the welders and engineers A New Day is Dawning James Masden 2012 The first rays of sun touch the ocean, the golden rays of sun touch the sea. A Wallaby in My Garden Matthew Hindson 2007 There's a wallaby in my garden… A Whole New World (Aladdin's Theme) Words by Tim Rice & music by Alan Menken 2006 I can show you the world. A Wombat on a Surfboard Louise Perdana 2014 I was sitting on the beach one day when I saw a funny figure heading my way. A.E.I.O.U. Brian Fitzgerald, additional words by Lorraine Milne 1990 I can't make my mind up- I don't know what to do. Aba Daba Honeymoon Arthur Fields & Walter Donaldson 2000 "Aba daba ... -" said the chimpie to the monk. ABC Freddie Perren, Alphonso Mizell, Berry Gordy & Deke Richards 2003 You went to school to learn girl, things you never, never knew before. Abiyoyo Traditional Bantu 1994 Abiyoyo .. -
Astronomical Symbolism in Australian Aboriginal Rock Art
Accepted in Rock Art Research (2010) Astronomical Symbolism in Australian Aboriginal Rock Art Ray P. Norris1 and Duane W. Hamacher1 1Department of Indigenous Studies, Macquarie University, NSW 2109, Australia Corresponding author e-mail: [email protected] Abstract Traditional Aboriginal Australian cultures include a significant astronomical component, perpetuated through oral tradition and ceremony. This knowledge has practical navigational and calendrical functions, and sometimes extends to a deep understanding of the motion of objects in the sky. Here we explore whether this astronomical tradition is reflected in the rock art of Aboriginal Australians. We find several plausible examples of depictions of astronomical figures and symbols, and also evidence that astronomical observations were used to set out stone arrangements. However, we recognise that the case is not yet strong enough to make an unequivocal statement, and describe our plans for further research. Keywords: Aboriginal Australian, rock art, archaeoastronomy, ethnoastronomy 1. Introduction The dark night skies of Australia are an important part of the landscape, and would have been very obvious to Aboriginal people around their campfires before the British occupation. So it is unsurprising to find that stories of the Sun, Moon, planets, and constellations occupy a significant place in the oral traditions of Aboriginal Australians. This was first described by Stanbridge (1857), and since noted by many other authors (e.g. Mountford 1976; Haynes 1992; Johnson 1998; Cairns & Harney 2003; and Norris & Norris 2009). The focus of most of these works is on the correspondence between constellations, or celestial bodies, and events or characters in traditional Aboriginal oral traditions. For example, in many Aboriginal cultures the European constellation of Orion is associated with young men, particularly those who are hunting or fishing (e.g. -
The Archaeology of Neolithic and Bronze Age Greece
The Archaeology of Neolithic and Bronze Age Greece Tuesdays/Thursdays 11:00 AM – 12:15 PM. Psychology 206 Instructor: Professor Robert Schon email: [email protected] phone: 626-0436 office: Haury 311 office hours: Tuesdays and Wednesdays 1:30 PM – 2:30 PM and by appointment. Course Description: This class will examine the archaeology of the Greek Mainland, the Aegean islands and Crete from the arrival of humans until the end of the Late Bronze Age. Particular attention will be paid to the emergence and florescence of palace-centered societies of Minoan Crete and Mycenaean Greece. In addition to learning the material record of the region, students will hone their skills in critical thinking by exploring the theoretical approaches that inform the way archaeologists working in the area reconstruct the past. Special emphasis will be place on ‘Current Issues’ in Aegean scholarship. Required Texts: 1) The Cambridge Companion to the Aegean Bronze Age, edited by Cynthia W. Shelmerdine. 2) Introduction to Aegean Art, by Philip P. Betancourt. Additional A number of articles will be available on D2L. http://d2l.arizona.edu Readings: In addition, we will be using Professor Jeremy Rutter’s website: http://projectsx.dartmouth.edu/history/bronze_age/ You can find it easily by typing the words Rutter and Aegean into Google. Grades: Your Grades will be based on a midterm exam (20%), a final exam (20%), Ten short (ca. 1 page) response papers (10%) , a term-paper (25%) and attendance & class participation (25%). Turnitin: See below for turnitin.com policies. The Class ID is 3747659. The password is Mycenae. -
Boomerangs Fact Sheet
Boomerangs Fact Sheet Carved Club Boomerang. Image: QM. Introduction Making a Boomerang A boomerang is a throwing stick used by Australian Aborigi- Boomerangs are traditionally made by men and are nal people primarily for hunting. While similar weapons are constructed from a carefully chosen branch or root with the made by cultures all over the world, the consistent history appropriate shape and grain. Having a natural boomerang and variety of Australian examples has meant that most shape in the grain of the wood, means that the tip of the people associate boomerangs with Australia. In contrast boomerang is less likely to break off when it hits the ground. to spears, boomerangs are thrown to spin through the air The branch or root is removed from the tree or bush, and cause damage by clubbing rather than impaling. They usually a mulga, gidgea, mangrove or casuarina, and is do not need to be delivered with the same accuracy as a carved further into shape. It may be heated or moistened to spear, as the area covered by a spinning stick is greater. make the wood more supple, then bent and shaped into the Boomerangs are perfect weapons against large upright final form before being smoothed, greased and decorated. animals such as kangaroos and emus. They are well suited Traditionally, decorations on boomerangs are produced by for use in Australia’s predominantly open forests and grass- carving, burning or painting. Others are clan designs, which lands. only a few related people are allowed to use as they may Varieties identify them or demonstrate ownership of land. -
Aboriginal Plant Use and Technology
Aboriginal Plant use and Technology Stone eel and fish traps Technology Definition: The application of knowledge and an experience to create products and ways of meeting societies needs through the use of resources for particular purposes. The application of knowledge to create technologies is an integral part of the heritage and future of Australia. It is also essential to sustainable development. In traditional Aboriginal societies science and technology were used to manage the environment for the benefit of all people. A great variety of tools, weapons and utensils were used to gather plants for food, fibres and medicine as well as to hunt animals for food and clothing. In the manufacture of these tools and weapons rocks such as obsidian and quartz were attached to wood to create excellent cutting edges. These rocks in fact produce a cleaner, smoother cutting surface than steel. To attach the stones resins were used. The basic pattern of Aboriginal life was similar throughout Australia: small groups of people moved with the seasons over a particular territory. Their knowledge of seasonal changes in the environment and the ecology of plants and animals was very important in the search for food. All people used a similar range of equipment which included: • netting and trapping equipment • digging sticks • cutting and chopping tools • hunting and fighting equipment eg spears, boomerangs • equipment to prepare food e.g. grinding stones • containers eg bowls (coolamons) AUSTRALIAN NATIONAL BOTANIC GARDENS EDUCATION SERVICES, 2000 Some of these were only used in certain parts of Australia e.g. the returnable boomerang was unknown to Aborigines in the north and centre of Australia.