1)2 A light year is a) about six trillion miles. b) the distance to the star
... 10)2 Earth's geologic activity is driven by a) heat within the Earth that is left over from formation and created by radioactive decay. b) heat from the sun being absorbed by the surface. c) the moon's tidal forces. 11)2 Evidence from Type I A supernovae indicates that a) our galaxy is expanding b) ...
... 10)2 Earth's geologic activity is driven by a) heat within the Earth that is left over from formation and created by radioactive decay. b) heat from the sun being absorbed by the surface. c) the moon's tidal forces. 11)2 Evidence from Type I A supernovae indicates that a) our galaxy is expanding b) ...
creation of a cosmology: big bang theory _eng
... Lemaître created a cosmology that predicted a universe that was forever in a state of expansion. When this theory was rejuvenated by its republication in the journal Monthly Notices, it brought to the table another similar theory that was devised ten years earlier. Aleksander Friedmann, a Russian ma ...
... Lemaître created a cosmology that predicted a universe that was forever in a state of expansion. When this theory was rejuvenated by its republication in the journal Monthly Notices, it brought to the table another similar theory that was devised ten years earlier. Aleksander Friedmann, a Russian ma ...
PDF - Florida State University
... There is nothing special about out place in the universe The Universe is isotropic – it looks the same in all directions The Universe is homogeneous – any large volume looks the same as any other large volume at the same distance n ...
... There is nothing special about out place in the universe The Universe is isotropic – it looks the same in all directions The Universe is homogeneous – any large volume looks the same as any other large volume at the same distance n ...
universe
... randomly. From the time of the Big Bang, the Universe has been expanding in a uniform manner and direction. • Towards one another (gravity) • Away from one another (momentum from the Big Bang) While objects within the Universe have been expanding, for the most part, in a uniform manner, the motion a ...
... randomly. From the time of the Big Bang, the Universe has been expanding in a uniform manner and direction. • Towards one another (gravity) • Away from one another (momentum from the Big Bang) While objects within the Universe have been expanding, for the most part, in a uniform manner, the motion a ...
The Solar System and our Universe
... • Provided evidence that throughout the universe stars are dying, and new stars & galaxies are constantly forming. ...
... • Provided evidence that throughout the universe stars are dying, and new stars & galaxies are constantly forming. ...
1.1 Fundamental Observers
... universe, and the observer is always at the centre of things.” The power of the hypothesis of homogeneity is that our own observations from Earth are then all we need to test a cosmological model. We therefore have to hope that homogeneity is a reasonable approximation on the largest scales, bearing ...
... universe, and the observer is always at the centre of things.” The power of the hypothesis of homogeneity is that our own observations from Earth are then all we need to test a cosmological model. We therefore have to hope that homogeneity is a reasonable approximation on the largest scales, bearing ...
Project topics
... 1. Equipment and instruments that explore the universe (telescopes, satellites, probes, rockets, shuttles etc.). 2. Electromagnetic spectrum and its importance in astronomy. 3. Spectroscopes and the spectrums of stars. Include information about a spectroscope, spectrums of different gases, the Doppl ...
... 1. Equipment and instruments that explore the universe (telescopes, satellites, probes, rockets, shuttles etc.). 2. Electromagnetic spectrum and its importance in astronomy. 3. Spectroscopes and the spectrums of stars. Include information about a spectroscope, spectrums of different gases, the Doppl ...
PARTS OF THE UNIVERSE
... v Parallax: apparent shift in the position of an object when view from two different locations. v Parallax Example v Can be used to measure the distance of stars from Earth that are relatively close. v Proxima Centauri: closest star to earth v (4.3 light years away – 40 trillion km) ...
... v Parallax: apparent shift in the position of an object when view from two different locations. v Parallax Example v Can be used to measure the distance of stars from Earth that are relatively close. v Proxima Centauri: closest star to earth v (4.3 light years away – 40 trillion km) ...
The Expanding Universe
... energy which consequently became matter and is now everything around us. There were two theories regarding the universe The Steady State Universe: where the universe had always been and would always continue to be in existence. The Created Universe: where at some time in the past the universe was cr ...
... energy which consequently became matter and is now everything around us. There were two theories regarding the universe The Steady State Universe: where the universe had always been and would always continue to be in existence. The Created Universe: where at some time in the past the universe was cr ...
123mt13-2a
... There are a total of 120 points on this exam. Part I: True or False: Circle your answer. 2 pts each ...
... There are a total of 120 points on this exam. Part I: True or False: Circle your answer. 2 pts each ...
Expansion of the Universe
... 1. Scattering of blue and green light - i.e. why the sky appears blue, and why some sunrises or sunsets may appear red. Dust, smoke from forest fires, or other intervening material between the source and the observer can scatter (remove) the higher frequency colors (blue, green, yellow, and orange) ...
... 1. Scattering of blue and green light - i.e. why the sky appears blue, and why some sunrises or sunsets may appear red. Dust, smoke from forest fires, or other intervening material between the source and the observer can scatter (remove) the higher frequency colors (blue, green, yellow, and orange) ...
Review 1 Solutions
... 1. The night sky is mostly dark because we can only see stars within about 13.8 billion light years of us. T 2. The “rotation curves” that plot stars’ orbital speeds versus their distance from their galaxy’s center initially surprised astronomers by suggesting that large amounts of invisible matter ...
... 1. The night sky is mostly dark because we can only see stars within about 13.8 billion light years of us. T 2. The “rotation curves” that plot stars’ orbital speeds versus their distance from their galaxy’s center initially surprised astronomers by suggesting that large amounts of invisible matter ...
Chapter 7 Review Answers
... at the beginning of the universe (BBT) went. That extra radiation should be present throughout the universe if the BBT was to be true. We believe now that the cosmic background radiation is that extra energy/radiation. The CBR found fits with the predictions consistent with the BBT, supporting the B ...
... at the beginning of the universe (BBT) went. That extra radiation should be present throughout the universe if the BBT was to be true. We believe now that the cosmic background radiation is that extra energy/radiation. The CBR found fits with the predictions consistent with the BBT, supporting the B ...
04 Astrophysics_-_lesson_4 cosmology
... Background radiation In 1960 two physicists, Dicke and Peebles, realising that there was more He than it could be produced by stars, proposed that in the beginning of the Universe it was at a sufficiently high temperature to produce He by fusion. In this process a great amount of highly energetic r ...
... Background radiation In 1960 two physicists, Dicke and Peebles, realising that there was more He than it could be produced by stars, proposed that in the beginning of the Universe it was at a sufficiently high temperature to produce He by fusion. In this process a great amount of highly energetic r ...
ORIGIN OF THE UNIVERSE
... - When all of the helium fuel of the Red Giant has been used. The outer layers explode off into space just leaving the white hot core (very small nearing the end of life) ...
... - When all of the helium fuel of the Red Giant has been used. The outer layers explode off into space just leaving the white hot core (very small nearing the end of life) ...
Chapter 18 - the Universe Begins
... the Big Bang is referred to as the period of ‘inflation’ (see Fig. 18.1). This very young Universe contained extremely hot energy—too hot for even the most basic building blocks of matter to exist. After this time, as the Universe expanded (see Fig. 18.9) and cooled, energy began to condense into ma ...
... the Big Bang is referred to as the period of ‘inflation’ (see Fig. 18.1). This very young Universe contained extremely hot energy—too hot for even the most basic building blocks of matter to exist. After this time, as the Universe expanded (see Fig. 18.9) and cooled, energy began to condense into ma ...
WHERE DO ELEMENTS COME FROM?
... The temperature appeared to be perfectly uniform How could stars and galaxies form if mass was perfectly distributed? ...
... The temperature appeared to be perfectly uniform How could stars and galaxies form if mass was perfectly distributed? ...
B4-PMo-10
... 4) We calculate the quantum effects of the matter-field. Casimir energy of the universe is finitely obtained. The absolute value is consistent with the observation. 5) We introduce fluctuation around the homogeneous part as the statistically-distributed fluctuation. We introduce a statistical averaging ...
... 4) We calculate the quantum effects of the matter-field. Casimir energy of the universe is finitely obtained. The absolute value is consistent with the observation. 5) We introduce fluctuation around the homogeneous part as the statistically-distributed fluctuation. We introduce a statistical averaging ...
Space Study Guide
... As technology increased, scientists made more and more observations that supported the Big Bang Model. 1. In 1929, Edwin Hubble observed that the spectral lines from other galaxies tended to always shift toward the red end of the spectrum. According to the Doppler Effect, causes this change of obser ...
... As technology increased, scientists made more and more observations that supported the Big Bang Model. 1. In 1929, Edwin Hubble observed that the spectral lines from other galaxies tended to always shift toward the red end of the spectrum. According to the Doppler Effect, causes this change of obser ...
Lecture 33
... • The universe had to expand by more than another order of magnitude in order to cool so that neutrons and protons could combine; before that any that formed were immediately broken apart again by high-energy photons. • Thus, starting at t~1 minute, the universe started to allow the creation of the ...
... • The universe had to expand by more than another order of magnitude in order to cool so that neutrons and protons could combine; before that any that formed were immediately broken apart again by high-energy photons. • Thus, starting at t~1 minute, the universe started to allow the creation of the ...
SUFFOLK COUNTY COMMUNITY COLLEGE
... such as Neutron stars, Black holes, and Cosmology. Throughout the course emphasis will be placed on the both of Albert Einstein’s Special and General Theories of Relativity ...
... such as Neutron stars, Black holes, and Cosmology. Throughout the course emphasis will be placed on the both of Albert Einstein’s Special and General Theories of Relativity ...
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.