Geocentric vs. Heliocentric
... Ptolemy’s system provided the intellectual framework for all discussion of the universe for nearly 1600 years!! So in a very true sense, this idea was stupendously successful even though we now know that it was incorrect. ...
... Ptolemy’s system provided the intellectual framework for all discussion of the universe for nearly 1600 years!! So in a very true sense, this idea was stupendously successful even though we now know that it was incorrect. ...
Back ground information
... Visible light has more energy and smaller wavelengths than infrared radiation and is divided into the different colors humans see. Moving from longer wavelengths (less energy) to shorter wavelengths (more energy) one finds red, orange, yellow, green, blue, and violet. The color of the light emitted ...
... Visible light has more energy and smaller wavelengths than infrared radiation and is divided into the different colors humans see. Moving from longer wavelengths (less energy) to shorter wavelengths (more energy) one finds red, orange, yellow, green, blue, and violet. The color of the light emitted ...
Study Guide Ch10,11 and 12
... 10. Describe the different types of active galaxies, and the mechanisms proposed to explain their energy output and other characteristics. 11. Briefly relate the story of the discovery of quasars 12. Describe the current explanation of quasars and their energy sources. ...
... 10. Describe the different types of active galaxies, and the mechanisms proposed to explain their energy output and other characteristics. 11. Briefly relate the story of the discovery of quasars 12. Describe the current explanation of quasars and their energy sources. ...
PHYS 175 Fall 2014 Final Recitation Ch. 16 The Sun
... time are both aspects of a single spacetime, and the perception of that spacetime is dependent upon the observer’s frame of reference. While special relativity only takes into account relative motion (not gravity), it correctly predicts many observed distortions of mass, length and time. Ch. 22 The ...
... time are both aspects of a single spacetime, and the perception of that spacetime is dependent upon the observer’s frame of reference. While special relativity only takes into account relative motion (not gravity), it correctly predicts many observed distortions of mass, length and time. Ch. 22 The ...
THE DOPPLER EFFECT
... But perhaps more interesting than the distant future of the universe is what its present expansion implies about its past. Extrapolating backward in time using the known laws of physics, the universe must have been denser and denser at earlier and earlier times. At some point, it must have been extr ...
... But perhaps more interesting than the distant future of the universe is what its present expansion implies about its past. Extrapolating backward in time using the known laws of physics, the universe must have been denser and denser at earlier and earlier times. At some point, it must have been extr ...
Where do we come from?
... If the universe had remained dense, it wouldn’t have cooled enough for nuclei, atoms, galaxies, and us to form. (Speaking to an audience of humans, I make no apologies for my human chauvinism.) ...
... If the universe had remained dense, it wouldn’t have cooled enough for nuclei, atoms, galaxies, and us to form. (Speaking to an audience of humans, I make no apologies for my human chauvinism.) ...
Study Guide - Universe Exam key 2014-15 v2
... c) How are color and temperature related? Red to blue = cooler to hotter d) How is luminosity and temperature related in the Main Sequence stars? They are equal e) In what two ways are the stars Sirius B and Regulus alike? Similar in temperature ...
... c) How are color and temperature related? Red to blue = cooler to hotter d) How is luminosity and temperature related in the Main Sequence stars? They are equal e) In what two ways are the stars Sirius B and Regulus alike? Similar in temperature ...
Study Guide: Chapters 32-‐34 FROSH CHAPTER 32 1. What is
... 49. The Milky Way galaxy contains interstellar matter that may form new _______________. ...
... 49. The Milky Way galaxy contains interstellar matter that may form new _______________. ...
Lecture 02a: Setting a context for us in the Universe
... Take home message: a good idea of our place in space, and how the building blocks of life came to be. ...
... Take home message: a good idea of our place in space, and how the building blocks of life came to be. ...
Outline 8: History of the Universe and Solar System
... • No, gravitational forces have slowed down the galaxies since the Big Bang. • (Note: Recent observations suggest this was the case for the first 2/3 of the Universe’s history. The expansion rate now seems to have increased for the last 1/3 of the Universe’s history. This is explained by “dark phant ...
... • No, gravitational forces have slowed down the galaxies since the Big Bang. • (Note: Recent observations suggest this was the case for the first 2/3 of the Universe’s history. The expansion rate now seems to have increased for the last 1/3 of the Universe’s history. This is explained by “dark phant ...
Cosmo: Student`s Workbook
... Ptolmaic and the Medieval. It was a perfectly sensible model in that it satisfied the senses. The Earth was regarded as stationary and nailed in at the centre of the Universe. All heavenly bodies were thought to rotate around the Earth fixed in crystal spheres. The outermost sphere held the stars. T ...
... Ptolmaic and the Medieval. It was a perfectly sensible model in that it satisfied the senses. The Earth was regarded as stationary and nailed in at the centre of the Universe. All heavenly bodies were thought to rotate around the Earth fixed in crystal spheres. The outermost sphere held the stars. T ...
News Release - האוניברסיטה העברית
... some ten billion years ago (about three billion years after the Big Bang which first established the Universe). “The large galaxies, as they appear in this early stage, indeed created stars at a very rapid rate, but this does not appear to be at all a result of galactic mergers,” says Prof. Dekel. T ...
... some ten billion years ago (about three billion years after the Big Bang which first established the Universe). “The large galaxies, as they appear in this early stage, indeed created stars at a very rapid rate, but this does not appear to be at all a result of galactic mergers,” says Prof. Dekel. T ...
Course Expectations
... 9. The difference between active and inactive galaxies 10. Hubble’s Law is used to calculate the distance to other galaxies 11. The farther away the galaxy is the faster it is moving 12. The Big Bang Theory is currently the most widely accepted and supported explanation for the formation of our univ ...
... 9. The difference between active and inactive galaxies 10. Hubble’s Law is used to calculate the distance to other galaxies 11. The farther away the galaxy is the faster it is moving 12. The Big Bang Theory is currently the most widely accepted and supported explanation for the formation of our univ ...
Origin of Life - BlackSage.com
... • If big bang then there should exist remanentt heat • The cosmic microwave background was predicted in 1948 • 1964-65Arno Penzias and Robert Woodrow Wilson measured the temperature to be approximately 2.725 K which translates to specific background radiation in the microwave range. • This radiation ...
... • If big bang then there should exist remanentt heat • The cosmic microwave background was predicted in 1948 • 1964-65Arno Penzias and Robert Woodrow Wilson measured the temperature to be approximately 2.725 K which translates to specific background radiation in the microwave range. • This radiation ...
Homework 1 - Concord University
... at 1.3 parsec (1 parsec = 3.1×1018 cm). Imagine there are space aliens on αCen, then (i) sketch one, and (ii) comment on what they see going on here when they look at us with high-power telescopes and/or tune in to our TV transmissions (which leave Earth as radio waves). e. [5 points]. The nearest g ...
... at 1.3 parsec (1 parsec = 3.1×1018 cm). Imagine there are space aliens on αCen, then (i) sketch one, and (ii) comment on what they see going on here when they look at us with high-power telescopes and/or tune in to our TV transmissions (which leave Earth as radio waves). e. [5 points]. The nearest g ...
Slide 1
... forever. This motivation evaporated after the discovery by Edwin Hubble that the universe is in fact not static, but expanding; in particular, Hubble discovered a relationship between redshift and distance, which forms the basis for the modern expansion paradigm. According to Gamow this led Einstein ...
... forever. This motivation evaporated after the discovery by Edwin Hubble that the universe is in fact not static, but expanding; in particular, Hubble discovered a relationship between redshift and distance, which forms the basis for the modern expansion paradigm. According to Gamow this led Einstein ...
Search For Dark Matters Essay Research Paper
... help astronomers better comprehend the universe\’s destiny. Eighty-four years after Albert Einstein introduced the world to his theory of general relativity, scientists are seeing that he was right all along about measuring what we now call dark matter. Astronomers supported by the National Science ...
... help astronomers better comprehend the universe\’s destiny. Eighty-four years after Albert Einstein introduced the world to his theory of general relativity, scientists are seeing that he was right all along about measuring what we now call dark matter. Astronomers supported by the National Science ...
file - University of California San Diego
... The forest, Burbidge notes, may represent light not from the quasar itself but from diffuse gas clouds that lie along our line of sight to the quasar and absorb some of its spectrum. "These gas clouds may be in a primordial region, perhaps evolving into a cluster of galaxies around the quasar," Burb ...
... The forest, Burbidge notes, may represent light not from the quasar itself but from diffuse gas clouds that lie along our line of sight to the quasar and absorb some of its spectrum. "These gas clouds may be in a primordial region, perhaps evolving into a cluster of galaxies around the quasar," Burb ...
PHYSICS 113 Assignment #9 SOLUTIONS Chapter 17 13. Starting
... outpouring of energy from quasars?" How would you respond? Since black holes have mass, they have gravity and thus they attract matter towards them. When this matter moves inside the event horizon (also known as the Schwarzschild radius), it is no longer observable. This is because even light is tra ...
... outpouring of energy from quasars?" How would you respond? Since black holes have mass, they have gravity and thus they attract matter towards them. When this matter moves inside the event horizon (also known as the Schwarzschild radius), it is no longer observable. This is because even light is tra ...
Non-standard cosmology
A non-standard cosmology is any physical cosmological model of the universe that has been, or still is, proposed as an alternative to the Big Bang model of standard physical cosmology. In the history of cosmology, various scientists and researchers have disputed parts or all of the Big Bang due to a rejection or addition of fundamental assumptions needed to develop a theoretical model of the universe. From the 1940s to the 1960s, the astrophysical community was equally divided between supporters of the Big Bang theory and supporters of a rival steady state universe. It was not until advances in observational cosmology in the late 1960s that the Big Bang would eventually become the dominant theory, and today there are few active researchers who dispute it.The term non-standard is applied to any cosmological theory that does not conform to the scientific consensus, but is not used in describing alternative models where no consensus has been reached, and is also used to describe theories that accept a ""big bang"" occurred but differ as to the detailed physics of the origin and evolution of the universe. Because the term depends on the prevailing consensus, the meaning of the term changes over time. For example, hot dark matter would not have been considered non-standard in 1990, but would be in 2010. Conversely, a non-zero cosmological constant resulting in an accelerating universe would have been considered non-standard in 1990, but is part of the standard cosmology in 2010.