...spectroscopy broadened it. The universe grew from a sky of stars to a realm of galaxies, to an expanding universe of galaxies. Many people believe that nature, the sun and moon, the star, even human beings never had a beginning. There is an endless, external cycle of birth, life and death that constantly repeats itself and it never began and will never end. In the Book of Genesis in the Bible, it was written that at first the world did not exist and that God is the only one who existed. So He created the world. The universe is the totality of everything that has ever existed. It is so large that it contains billions of stars, and all of the planets, galaxies and all of space. The study of the universe is called Cosmology. Traditional Views about the Universe 1. Geocentric Universe Greeks believed that the earth was a sphere that stayed motionless at the center of the universe or the geocentric (Earth-centered) view. Orbiting the earth were seven wanderers (planetai in Greek) including the sun, the moon and the known planets, Mercury, Venus, Mars, Jupiter and Saturn. Greece was centered as the “Golden Age” of early astronomy. Claudius Ptolemy created the book Almagest, the only surviving comprehensive ancient treatise on astronomy. His geocentric outlook later became the Ptolemaic system in the second century A.D. and dominated western thought for some 2000 years. 2. The Heliocentric System The view of the universe in which the sun is taken to be at the center is called...
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...discovered dozens of planets orbiting other stars, and space probes have explored many parts of our solar system, but so far scientists have only discovered one place in the universe where conditions are suitable for complex life forms: Earth. In this unit, examine the unique characteristics that make our planet habitable and learn how these conditions were created. Surfaces of Mars, Moon, Venus, Earth. Source: NASA Sections: 1. Introduction 2. Many Planets, One Earth 3. Reading Geologic Records 4. Carbon Cycling and Earth's Climate 5. Testing the Thermostat: Snowball Earth 6. Atmospheric Oxygen 7. Early Life: Single-Celled Organisms 8. The Cambrian Explosion and the Diversification of Animals 9. The Age of Mammals 10. Further Reading Unit 1 : Many Planets, One Earth -1- www.learner.org 1. Introduction Earth's long history tells a story of constant environmental change and of close connections between physical and biological environments. It also demonstrates the robustness of life. Simple organisms first appeared on Earth some 3.8 billion years ago, and complex life forms emerged approximately 2 billion years ago. Life on Earth has endured through many intense stresses, including ice ages, warm episodes, high and low oxygen levels, mass extinctions, huge volcanic eruptions, and meteorite impacts. Untold numbers of species have come and gone, but life has survived even the most extreme fluxes. To understand why Earth has been so conducive to life, we need to identify...
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...Module 3 Waves and the Electromagnetic Spectrum Topic: Waves 1. What is a wave? A wave is vibration that travels and all waves are created by something vibrating. Waves transport energy but do not transport mass. 2. Describe the following terms associated with waves: a. amplitude height of wave b. wavelength length of a wave c. frequency number of waves per second (Hz) d. period how long a wave lasts when it arrives at a fixed point (measured in seconds) 3. What are radio waves? An electromagnetic wave of a frequency used for long distant communication. 4. Explain the difference between a transverse wave and a longitudinal wave, and give examples of each. In a longitudinal wave, the vibration travels in the same direction that wave travels. Examples of longitudinal waves include: Sound, p-waves (earthquakes) In a transverse wave, the vibration direction is perpendicular to direction that wave travels. Examples include: Light/electromagnetic, (radio, microwave, xray, etc.), water waves, swaves (earthquakes). The major difference between longitudinal and transverse waves is their direction. Longitudinal waves move left to right while transverse waves move up and down. 5. Compare and contrast: light waves vs. sound waves Light waves are transverse and sound waves are longitudinal. Light waves can travel through a vacuum but sound waves cannot. Speed of light is nearly 300 million m/s while sound has a speed of about 340 m/s...
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...Astronomy 2B03: Lecture 2: What’s Out There? * Objects in the universe come in a hierarchy of scales and sizes: * Planets * Stars * Galaxies * The universe as a whole * These scales are so different from one step to the next that they are incredibly hard to comprehend all at once – no “everyday” experience to refer them to * If the Earth were a basketball how big would the moon be? Tennis ball * How many Earths would fit into the Sun? ~ 1 million * How many Jupiter’s would fit inside the Sun? 900 * How many Moons would fit inside the Earth? 50 * If we say the distance from here to Toronto (71 km) represents the distance between the Earth and the Sun, how far are we from Pluto? From Hamilton to Mexico, or from Hamilton to Calgary * If we say the distance from here to Toronto represents the distance between the Earth and the Sun, how far is the Earth from the Moon? From here to the edge of campus (Sterling and Forsyth) * If we say the distance from here to Toronto represents the distance between the Earth and the Sun, how big is the Earth? 3 meters * If we say the distance from here to Toronto represents the distance between the Earth and the Sun, how far is the Sun from the next nearest Star? 1/10th the distance from the Sun to Earth Lecture 3: The Earth: * Our starting point and only home * Both land and water * The only planet to have liquid water at its surface * Atmosphere: dense...
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...hypothesis to be considered scientific it must be testable?it must, in principle, be capable of being proven wrong. Fact: A phenomenon about which competent observers can agree. Theory: A synthesis of a large body of information that encompasses well-tested hypotheses about certain aspects of the natural world. Law: A general hypothesis or statement about the relationship of natural quantities that has been tested over and over again and has not been contradicted. Also known as a principle. Evidence: which serves to either support or counter a scientific theory or hypothesis. Experiment: is a test carried out in order to discover whether a theory is correct or what the results of a particular course of action would be . What did Galileo do to challenge Aristotle?s belief that heavy objects fall faster than lighter objects? Galileo very carefully examined Aristotle?s hypothesis. Then he...
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...Answers to Conceptual Integrated Science End-of-Chapter Questions Chapter 1: About Science Answers to Chapter 1 Review Questions 1 The era of modern science in the 16th century was launched when Galileo Galilei revived the Copernican view of the heliocentric universe, using experiments to study nature’s behavior. 2 In Conceptual Integrated Science, we believe that focusing on math too early is a poor substitute forconcepts. 3 We mean that it must be capable of being proved wrong. 4 Nonscientific hypotheses may be perfectly reasonable; they are nonscientific only because they are not falsifiable—there is no test for possible wrongness. 5 Galileo showed the falseness of Aristotle’s claim with a single experiment—dropping heavy and lightobjects from the Leaning Tower of Pisa. 6 A scientific fact is something that competent observers can observe and agree to be true; a hypothesis is an explanation or answer that is capable of being proved wrong; a law is a hypothesis that has been tested over and over and not contradicted; a theory is a synthesis of facts and well-tested hypotheses. 7 In everyday speech, a theory is the same as a hypothesis—a statement that hasn’t been tested. 8 Theories grow stronger and more precise as they evolve to include new information. 9 The term supernatural literally means “above nature.” Science works within nature, not above it. 10 They rely on subjective personal experience and do not lead to testable hypotheses. They lie outside...
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...Study Guide: Midterm Exam Concentrate your studies in the following areas. Questions for the Midterm Exam will come principally from this material. Lutgens and Tarbuck Textbook: Minerals (Chapter 1) * Know the definition of a mineral. A mineral is a naturally occurring substance that is solid and inorganic representable by a chemical formula, usually abiogenic, and has an ordered atomic structure. It is different from a rock, which can be an aggregate of minerals or non-minerals and does not have a specific chemical composition. The exact definition of a mineral is under debate, especially with respect to the requirement a valid species be abiogenic, and to a lesser extent with regard to it having an ordered atomic structure. * Know the basic definition of a rock. * In geology, rock is a naturally occurring solid aggregate of one or more minerals or mineraloids. For example, the common rock granite is a combination of the quartz, feldspar and biotite minerals. The Earth's outer solid layer, the lithosphere, is made of rock. * Know how atoms of the same element are related. What do they have in common? All atoms of the same element have the same number of protons in the nucleus and consequently have the same atomic number. All atoms of the same neutral element have the same number of electrons as well. Atoms of an element usually have the same number of neutrons as protons. Atoms of the same element that have a different number of neutrons are called isotopes...
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...NATURE OF MAN HISTORY AND PHILOSOPHY OF SCIENCE IN 10 MODULES E. Kolawole Ogundowole, Ph.D., D.Sc. Professor & Head of Philosophy Department University of Lagos. Akoka, Lagos. Nigeria Correct Counsels Limited Research. Counselling. Publishing. Book Supply First published 2003 Correct Counsels Ltd. P. O. Box 53 Akoka, Lagos. C E. Kolawole Ogundowole, 2003 ISBN: 978 -37004 - 0 – 5 This book is copyright. All rights reserved under the Copyright La Enquiries should be addressed to the Publishers. Printed in Nigeria by: Mustard Press Enterprises 16, Ogundola Street Sungas-BAriga. PREFACE A few words about the overall objectives of the course is appropriate as a starting point. Historically, philosophy was the first form of theoretical knowledge. As a rational theoretical tool of comprehending the world, philosophy arose in ancient Greece in stiff battle with mythology and religious consciousness. It came out to lay the foundation for the evolvement of scientific consciousness and the emergence and development of the sciences - Mathematics, Astronomy, Physics, Chemistry, Biology, etc. In an environment rife with various and varying superstitions and myths, the study of the History of Science and Philosophy of Science becomes crucial, lest science itself falls within the ambit of mythology and superstition and becomes another form of myth even in the hands of the tutored. The study of the History of Science...
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...HIST Y AN PHILO PHY TORY ND P OSOP Y OF S ENCE SCIE E COMM MON CO OURSE IN ENG E GLISH BBA (I Seme A ester) BA/BS (IV Se Sc emester) 2011 A dmission onwards o UNIV VERSI ITY OF CAL F LICUT SC CHOOL OF DI L ISTANC EDU CE UCATIO ON Calicut Universi P.O. M ity Malappur ram, Kera India 673 635 ala, a 106 School of Distance Education UNIVERSITY OF CALICUT SCHOOL OF DISTANCE EDUCATION BBA (I Semester) BA/BSc (IV Semester) Common Course in English 2011 Admission onwards HISTORY AND PHILOSOPHY OF SCIENCE MODULE I & II Prepared by : House No. 21 “Pranaam” Keltron Nagar, Kolazhi, Thrissur Ms. GAYATHRI MENON .K MODULE III & IV Prepared by: Ms. SWAPNA M.S. Department of English K. K. T. M. Govt. College Pullut, Thrissur Dr. Anitha Ramesh K Associate Professor Department of English ZG College, Calicut © Reserved 2 Scrutinised by : Layout: Computer Section, SDE History and Philosophy of Science School of Distance Education Contents MODULE I ANCIENT HISTORY OF SCIENCE 1. Introduction 2. Origins of Scientific Enquiry 3. European Origins of Science 4. Contributions of Early India 5. Science in China 6. The role of Arabs in the History of Science MODULE 2 7. Science in the Middle Ages MODULE 3 MODERN SCIENCE 8. Newton and After 9. The Advancing Frontiers: Modern Medicine to Nanotechnology MODULE 4 PHILOSOPHY OF SCIENCE 10. Basic concepts in the Philosophy of Science 11. Some Issues in the Philosophy...
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...Courtesy of L E K A R SPECIAL EDITION Authors: Marino, Paul L. Title: ICU Book, The, 3rd Edition Copyright ©2007 Lippincott Williams & Wilkins ISBN: 0-7817-4802-X Authors Dedication Quote Preface to Third Edition Preface to First Edition Acknowledgments Table of Contents Section I - Basic Science Review Basic Science Review Chapter 1 - Circulatory Blood Flow Chapter 2 - Oxygen and Carbon Dioxide Transport Section II - Preventive Practices in the Critically Ill Preventive Practices in the Critically Ill Chapter 3 - Infection Control in the ICU Chapter 4 - Alimentary Prophylaxis Chapter 5 - Venous Thromboembolism Section III - Vascular Access Vascular Access Chapter 6 - Establishing Venous Access Chapter 7 - The Indwelling Vascular Catheter Section IV - Hemodynamic Monitoring Hemodynamic Monitoring Chapter 8 - Arterial Blood Pressure Chapter 9 - The Pulmonary Artery Catheter Chapter 10 - Central Venous Pressure and Wedge Pressure Chapter 11 - Tissue Oxygenation Section V - Disorders of Circulatory Flow Disorders of Circulatory Flow Chapter 12 - Hemorrhage and Hypovolemia Chapter 13 - Colloid and Crystalloid Resuscitation Chapter 14 - Acute Heart Failure Syndromes Chapter 15 - Cardiac Arrest Chapter 16 - Hemodynamic Drug Infusions Section VI - Critical Care Cardiology Critical Care Cardiology Chapter 17 - Early Management of Acute Coronary Syndromes Chapter 18 - Tachyarrhythmias Section VII - Acute Respiratory Failure Acute Respiratory Failure Chapter 19 - Hypoxemia...
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...Olympic flag What colour is vermilion a shade of King Zog ruled which country What colour is Spock's blood Where in your body is your patella Where can you find London bridge today What spirit is mixed with ginger beer in a Moscow mule Who was the first man in space What would you do with a Yashmak Who betrayed Jesus to the Romans Which animal lays eggs On television what was Flipper Who's band was The Quarrymen Which was the most successful Grand National horse Who starred as the Six Million Dollar Man In the song Waltzing Matilda - What is a Jumbuck Who was Dan Dare's greatest enemy in the Eagle What is Dick Grayson better known as What was given on the fourth day of Christmas What was Skippy ( on TV ) What does a funambulist do What is the name of Dennis the Menace's dog What are bactrians and dromedaries Who played The Fugitive Who was the King of Swing Who was the first man to fly across the channel Who starred as Rocky Balboa In which war was the charge of the Light Brigade Who invented the television Who would use a mashie niblick In the song who killed Cock Robin What do deciduous trees do In golf what name is given to the No 3 wood If you has caries who would you consult What other name is Mellor’s famously known by What did Jack Horner pull from his pie How many feet in a fathom which film had song Springtime for Hitler Name the legless fighter pilot of ww2 What was the name of inn in Treasure Island What was Erich Weiss better known as Who sailed in the Nina -...
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...FOR BLYTHE Acknowledgments My profound thanks to three dear friends with whom I have the great luxury of working: my editor, Jason Kaufman; my agent, Heide Lange; and my counselor, Michael Rudell. In addition, I would like to express my immense gratitude to Doubleday, to my publishers around the world, and, of course, to my readers. This novel could not have been written without the generous assistance of countless individuals who shared their knowledge and expertise. To all of you, I extend my deep appreciation. To live in the world without becoming aware of the meaning of the world is like wandering about in a great library without touching the books. The Secret Teachings of All Ages ———————————— FACT: In 1991, a document was locked in the safe of the director of the CIA. The document is still there today. Its cryptic text includes references to an ancient portal and an unknown location underground. The document also contains the phrase “It’s buried out there somewhere.” All organizations in this novel exist, including the Freemasons, the Invisible College, the Office of Security, the SMSC, and the Institute of Noetic Sciences. All rituals, science, artwork, and monuments in this novel are real. ———————————— Prologue House of the Temple 8:33 P.M. The secret is how to die. Since the beginning of time, the secret had always been how to die. The thirty-four-year-old initiate gazed down at the human skull cradled in his palms. The skull was hollow, like...
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...SENIOR SECONDARY COURSE PHYSICS 1 (CORE MODULES) Coordinators Dr. Oum Prakash Sharma Sh. R.S. Dass NATIONAL INSTITUTE OF OPEN SCHOOLING A-25, INSTITUTIONAL AREA, SECTOR-62, NOIDA-201301 (UP) COURSE DESIGN COMMITTEE CHAIRMAN Prof. S.C. Garg Former Pro-Vice Chancellor IGNOU, Maidan Garhi, Delhi MEMBERS Prof. A.R. Verma Former Director, National Physical Laboratory, Delhi, 160, Deepali Enclave Pitampura, Delhi-34 Dr. Naresh Kumar Reader (Rtd.) Deptt. of Physics Hindu College, D.U. Dr. Oum Prakash Sharma Asstt. Director (Academic) NIOS, Delhi Prof. L.S. Kothari Prof. of Physics (Retd.) Delhi University 71, Vaishali, Delhi-11008 Dr. Vajayshree Prof. of Physics IGNOU, Maidan Garhi Delhi Sh. R.S. Dass Vice Principal (Rtd.) BRMVB, Sr. Sec. School Lajpat Nagar, New Delhi-110024 Dr. G.S. Singh Prof. of Physics IIT Roorkee Sh. K.S. Upadhyaya Principal Jawahar Navodaya Vidyalaya Rohilla Mohammadabad (U.P.) Dr. V.B. Bhatia Prof. of Physics (Retd.) Delhi University 215, Sector-21, Faridabad COURSE DEVELOPMENT TEAM CHAIRMAN Prof. S.C. Garg Former Pro-Vice Chancellor IGNOU, Delhi MEMBERS Prof. V.B. Bhatia 215, Sector-21, Faridabad Prof. B.B. Tripathi Prof. of Physics (Retd.), IIT Delhi 9-A, Awadhpuri, Sarvodaya Nagar Lucknow-226016 Sh. K.S. Upadhyaya Principal Navodaya Vidyalaya Rohilla Mohammadabad, (U.P.) Dr. V.P. Shrivastava Reader (Physics) D.E.S.M., NCERT, Delhi EDITORS TEAM CHAIRMAN Prof. S.C. Garg Former Pro-Vice Chancellor IGNOU, Delhi MEMBERS Prof. B.B. Tripathi Prof...
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...Listen to This 2 听力文本 Lesson Lesson Lesson Lesson Lesson Lesson Lesson Lesson Lesson Lesson Lesson Lesson Lesson Lesson Lesson Lesson Lesson Lesson Lesson Lesson Lesson Lesson Lesson Lesson Lesson Lesson Lesson Lesson Lesson Lesson Lesson Lesson 目 录 1 .............................................................................2 2 .............................................................................9 3 ...........................................................................14 4 ...........................................................................20 5 ...........................................................................26 6 ...........................................................................30 7 ...........................................................................35 8 ...........................................................................41 9 ...........................................................................46 10 .........................................................................52 11 .........................................................................55 12 .........................................................................59 13 .........................................................................65 15 .........................................................................73 16 .........................................................................77 17 ................................................
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...PHYSIC AL CONSTANTS CONSTANT Speed of light Elementary charge Electron mass Proton mass Gravitational constant Permeability constant Permittivity constant Boltzmann’s constant Universal gas constant Stefan–Boltzmann constant Planck’s constant Avogadro’s number Bohr radius SYMBOL c e me mp G m0 P0 k R s h 15 2p"2 NA a0 THREE-FIGURE VALUE 3.003108 m/s 1.60310219 C 9.11310231 kg 1.67310227 kg 6.67310211 N # m2/kg 2 1.2631026 N/A2 1H/m2 8.85310212 C 2/N # m2 1F/m2 1.38310223 J/K 8.31 J/K # mol 5.6731028 W/m2 # K4 6.63310234 J # s 6.0231023 mol21 5.29310211 m BEST KNOWN VALUE* 299 792 458 m/s (exact) 1.602 176 4871402 310219 C 9.109 382 151452 310231 kg 1.672 621 6371832 310227 kg 6.674 281672 310211 N # m2/kg 2 4p31027 (exact) 1/m0c2 (exact) 1.380 65041242 310223 J/K 8.314 4721152 J/K # mol 5.670 4001402 31028 W/m2 # K4 6.626 068 961332 310234 J # s 6.022 141 791302 31023 mol21 5.291 772 08591362 310211 m *Parentheses indicate uncertainties in last decimal places. Source: U.S. National Institute of Standards and Technology, 2007 values SI PREFIXES POWER 1024 1021 1018 1015 1012 109 106 103 102 101 100 1021 1022 1023 1026 1029 10212 10215 10218 10221 10224 THE GREEK ALPHABET PREFIX yotta zetta exa peta tera giga mega kilo hecto deca — deci centi milli micro nano pico femto atto zepto yocto SYMBOL Y Z E P T G M k h da — d c m μ n p f a z y Alpha ...
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