PPT-Theories of the Universe

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. The lack of transparency introduced by poorly anchored math ematical models the psychological persuasiveness of stories and the way the profession neglects relevant issues are suggested as explanations for how what we perhaps should see as displays gravity. and . the . acceleration of the Universe I. . Francisco S. N. Lobo . Centro de . Astronomia. e . Astrofísica. . da . Universidade. de . Lisboa. http. ://cosmo.fis.fc.ul.pt/~flobo/. 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 . From t=0 to the CBR Era. The CBR. Universe hotter & denser in the past. For T high enough - ionized & opaque – blackbody. and. Currently T=2.726 K. z(opaque. . transparent)~1100 K. Lecture 2; . April 9 2013. Previously.. On Astro-2. The goal of cosmology is to understand how the universe formed and evolved.. How can we build a theory of the universe valid at all times in every place? . 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 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. 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. Are we close to the end of science?. Exam Wednesday, May 8, 1:30-4:30, here. Open book, open note, open internet. Electronic submission encouraged,. You need to bring your own . laptop.But. blue books available if you do not want to use a laptop.. Origin of the Universe. Big Bang Theory in 90 Seconds. How long ago did the universe form according to the Big Bang Theory?. Describe the Big Bang . Theory.. What discovery by Edwin Hubble led to the development of the Big Bang Theory?. 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?. Dewayne E Perry. ARiSE. , ECE, UT Austin. perry@ece.utexas.edu. Theories D & E. I begin with two simple theories:. A theory about design – D. A theory about empirical evaluation – E. And a theory about how to model theories. Explore the curiosities of our galaxy!Too often, textbooks obscure the beauty and wonder of outer space with tedious discourse that even Galileo would oppose. Astronomy 101 cuts out the boring details and lengthy explanations, and instead, gives you a lesson in astronomy that keeps you engaged as you discover what\'s hidden beyond our starry sky.From the Big Bang and nebulae to the Milky Way and Sir Isaac Newton, this celestial primer is packed with hundreds of entertaining astronomy facts, charts, and photographs you won\'t be able to get anywhere else.So whether you\'re looking to unravel the mystery behind black holes, or just want to learn more about your favorite planets, Astronomy 101 has all the answers--even the ones you didn\'t know you were looking for.