PPT-The Digital Universe Decade

Are you OK Information Universe 2011 Fall Sep 2011 Dookyoon Han Growing Information Universe In 2009 The amount of information created and copied in the world grew by 62 nearly 80000 petabytes1peta 1000000giga 1015. Homogeneous and uniform cosmic expansion . Hubble constant determines scale factor . Hubble diagram was based on a limited distance scale calibrated by Cepheid variable stars in relatively nearby galaxies. Frances Leslie, Susan . Coutin. , Kelly Ward & Marina Corrales. UC Irvine. Purpose. . to transform climate for graduate education by 2020 at UC Irvine.. Funded. . by U.S. Department of Education Fund for the Improvement of Postsecondary Education (FIPSE) to Graduate Division, Fall 2010 . w. here does it end?. Chris North. Cardiff University. The speed of light. c = 299,792,458 m/s. . or 670,616,629 miles per hour. . or 2 million . million. furlongs per fortnight. or ~300,000 km/s. Lecture 3; April . 11 2013. Previously.. On Astro-2. The universe is much larger than the Milky Way (Gpc vs kpc). There are billion of galaxies, the Milky Way is average Joe galaxy. Most galaxies can be classified based on their appearance as . Chapter 38. Reminders. Complete last Mallard. -based reading quiz before class on . Thursday (. Ch 39).. I will be sending out last weekly reflection and sample final . on Thursday. . Final exam Thursday, . Flat Earth Theory. Flat Earth Theory. Date: Ancient Times. Scientists: Babylonians, Egyptians. Theory Description: The world is a flat disk, not a sphere. Evidence: None. As early as the 4. th. century BC, scientists and philosophers, such as Aristotle, realized that the Earth was a sphere. (1927-1937). The next few days we will be focused on the Nanking Decade. . Eventually we will work our way through 1949, and enter China’s present-day Communist Era. . For Today. Class . was divided . It was apparently much flatter in the past:. Inflation!. For definiteness, pick . g. eff. =200 and . k. B. T. = 3. . 10. 15. . GeV. You should memorize this value to about 54 digits or so. How did it happen to be so close to 1?. Hubble Expansion and the Big Bang . The fact that more distant galaxies. have higher . redshifts. . indicates that the universe is expanding. This implies that the universe was born in a huge explosion, or . The universe is the sum of all energy, matter, space and time.. But there. ’. s a difference between the universe we see (the observable universe) . and the universe as it really exists.. This gets complicated….. The . National League (NL) . faced a renewed threat from rival professional circuit, the . American Association (AA).. Tensions quickly developed after the AA franchise from Philadelphia failed to submit their list to the national board, leaving their star players Harry Stover and Louis Bierbauer available as free agents.. The universe is a big place, perhaps the biggest. . –Kurt Vonnegut. Cosmology. Cosmology is the study of the nature of the universe, how the universe began and how it will end, if it does. There is religious cosmology, and scientific cosmology. If the universe was 1 year old . . .. Science/religion – either/or?. How do we predict the conditions of the early universe?. What are the different eras in the early universe?. What key lines of evidence support the Big Bang model?. ITABLE OF CONTENTSTABLE OF CONTENTSINTRODUCTIONDIGITAL DISTRUST HOW DID WE GET HEREGOOGLING INDIFFERENCE TO HARMFACEBOOK UNLIKEDTWITTER146S CHARACTERCREATING SAFE DIGITAL NEIGHBORHOODSTHE SURVEYABOUT