Ch. 21 notes-1
... substance formed which is probably the main source of comets. The Future of the Universe One possibility: The universe will continue to expand, as it is doing now. The stars will run out of fuel, burn out, and the universe will be cold and dark Second possibility: The force of gravity will begin t ...
... substance formed which is probably the main source of comets. The Future of the Universe One possibility: The universe will continue to expand, as it is doing now. The stars will run out of fuel, burn out, and the universe will be cold and dark Second possibility: The force of gravity will begin t ...
Origins of the Universe
... • A theory for the creation of the universe • Scientists believe about 14 billion years ago, the universe was unimaginably compact, small, and dense • Universe began its expansion after a giant explosion, coined the Big Bang • It began expanding with unimaginable force from a hot, dense state to its ...
... • A theory for the creation of the universe • Scientists believe about 14 billion years ago, the universe was unimaginably compact, small, and dense • Universe began its expansion after a giant explosion, coined the Big Bang • It began expanding with unimaginable force from a hot, dense state to its ...
Problem Set # 8: The Last Problem Set Due Wednesday, December
... mass. It has a luminosity L = 0.00014Lsun , where Lsun is the Sun’s luminosity. Like the Sun, Proxima Centauri is powered by the fusion of hydrogen into helium. If the Sun’s lifespan is t = 10 billion years, what is the lifespan of Proxima Centauri? Is this longer than or shorter than the Hubble tim ...
... mass. It has a luminosity L = 0.00014Lsun , where Lsun is the Sun’s luminosity. Like the Sun, Proxima Centauri is powered by the fusion of hydrogen into helium. If the Sun’s lifespan is t = 10 billion years, what is the lifespan of Proxima Centauri? Is this longer than or shorter than the Hubble tim ...
music A 21st Century Perspective Updated: Dennis Warren
... atoms and molecules-in any conscious way, • TRANSCENDENCE: The dancing superstrings in the ratio of 3:4 polymeter is our resolvent for General Relativity and Quantum Mechanics incompatibilityMilford Graves-Grand Unification-October 1997 • Rhythm piled atop rhythm, with even the simplest one-celled c ...
... atoms and molecules-in any conscious way, • TRANSCENDENCE: The dancing superstrings in the ratio of 3:4 polymeter is our resolvent for General Relativity and Quantum Mechanics incompatibilityMilford Graves-Grand Unification-October 1997 • Rhythm piled atop rhythm, with even the simplest one-celled c ...
Paradigm Shifts in Cosmology
... of the universe which allows for the expansion or contraction of space. A model of an expanding universe can naturally explain the results of Slipher. Suppose that the surface of an expanding balloon represents the space of our universe. Then, it is easy to imagine that the expansion of the balloon, ...
... of the universe which allows for the expansion or contraction of space. A model of an expanding universe can naturally explain the results of Slipher. Suppose that the surface of an expanding balloon represents the space of our universe. Then, it is easy to imagine that the expansion of the balloon, ...
Document
... Frontiers of Science What is dark energy? Do we know all the forces of nature? How many dimensions are there? Will the universe expansion accelerate forever? How are quantum physics and gravity unified? What is the fate of the universe? Size of ...
... Frontiers of Science What is dark energy? Do we know all the forces of nature? How many dimensions are there? Will the universe expansion accelerate forever? How are quantum physics and gravity unified? What is the fate of the universe? Size of ...
SCE 18 – Part 10
... • As energy in the form of photons converts to particles + antiparticles and back again: ...
... • As energy in the form of photons converts to particles + antiparticles and back again: ...
Light Years and Our Universe
... With the Big Bang, space itself began expanding like the surface of an inflating balloon and all the matter moved along with it. The Big Bang is NOT like an explosion of matter, in otherwise empty space. Space itself began with the Big Bang and carried matter with it as it ...
... With the Big Bang, space itself began expanding like the surface of an inflating balloon and all the matter moved along with it. The Big Bang is NOT like an explosion of matter, in otherwise empty space. Space itself began with the Big Bang and carried matter with it as it ...
physics_cosmic_engine - HSC Guru
... Friedmann proved mathematically that the universe is expanding. However he made some assumptions in order to prove it. Hubble showed that the universe was expanding, by showing that almost all the galaxies are red-shifted, meaning that they are moving away from us. ...
... Friedmann proved mathematically that the universe is expanding. However he made some assumptions in order to prove it. Hubble showed that the universe was expanding, by showing that almost all the galaxies are red-shifted, meaning that they are moving away from us. ...
Document
... has been more and more distance between clusters of galaxies. Galaxies moving farther away from each other is known as the red shift. As light from distant galaxies approach earth there is an increase of space between earth and the galaxy, which makes wavelengths being stretched. ...
... has been more and more distance between clusters of galaxies. Galaxies moving farther away from each other is known as the red shift. As light from distant galaxies approach earth there is an increase of space between earth and the galaxy, which makes wavelengths being stretched. ...
runaway - Astronomy & Astrophysics Group
... pushes white dwarf over the Chandrasekhar limit, causing thermonuclear disruption ...
... pushes white dwarf over the Chandrasekhar limit, causing thermonuclear disruption ...
The Milky Way, Schroedinger`s Cat, and You
... The Hubble Space Telescope is in orbit above the Earth’s atmosphere and so is able to take sharp pictures……but….. ….. it is prohibitively expensive to build telescopes that are based in space A new method called “Adaptive Optics” allows us to sharpen the vision of telescopes that are on the ground, ...
... The Hubble Space Telescope is in orbit above the Earth’s atmosphere and so is able to take sharp pictures……but….. ….. it is prohibitively expensive to build telescopes that are based in space A new method called “Adaptive Optics” allows us to sharpen the vision of telescopes that are on the ground, ...
understanding-the
... a. A group of people met together and decided to make it a theory. b. There is no other way to explain the formation of the universe. c. Distant galaxies were observed to be moving away from Earth. d. Edwin Hubble was an honest man. ...
... a. A group of people met together and decided to make it a theory. b. There is no other way to explain the formation of the universe. c. Distant galaxies were observed to be moving away from Earth. d. Edwin Hubble was an honest man. ...
Galileo and Newton
... assumed that all orbits are circular. The fundamental difference is that Copernicus placed the Sun at the center. ...
... assumed that all orbits are circular. The fundamental difference is that Copernicus placed the Sun at the center. ...
The Universe - staff.harrisonburg.k12.va
... What do Quasars indicate…. • If the Big Bang really happened, the oldest objects should be at the edge of the universe. • Quasars are very old objects that give off large amounts of energy located at the edge of the Universe. ...
... What do Quasars indicate…. • If the Big Bang really happened, the oldest objects should be at the edge of the universe. • Quasars are very old objects that give off large amounts of energy located at the edge of the Universe. ...
Hubblecast Episode 68: The Hubble time machine Visual notes 00
... [Dr. J - STUDIO 4] 9. So how do we know what these very distant galaxies look like today? Well, we can’t know for sure. We do know, however, that the Universe, on very large scales, pretty much looks the same everywhere. That means that today these very distant galaxies will look very similar to the ...
... [Dr. J - STUDIO 4] 9. So how do we know what these very distant galaxies look like today? Well, we can’t know for sure. We do know, however, that the Universe, on very large scales, pretty much looks the same everywhere. That means that today these very distant galaxies will look very similar to the ...
The Universe
... What do Quasars indicate…. • If the Big Bang really happened, the oldest objects should be at the edge of the universe. • Quasars are very old objects that give off large amounts of energy located at the edge of the Universe. ...
... What do Quasars indicate…. • If the Big Bang really happened, the oldest objects should be at the edge of the universe. • Quasars are very old objects that give off large amounts of energy located at the edge of the Universe. ...
Astro Review - Blank - Mayfield City Schools
... 6. ___g_ matter not visible through current methods, but observable through gravitational interactions between galaxies 7. ___b_ apparent shift toward longer wavelengths of light when a luminous object moves away from the viewer 8. ___f_ steady but faint microwaves from all over the sky 9. __h_ the ...
... 6. ___g_ matter not visible through current methods, but observable through gravitational interactions between galaxies 7. ___b_ apparent shift toward longer wavelengths of light when a luminous object moves away from the viewer 8. ___f_ steady but faint microwaves from all over the sky 9. __h_ the ...
Inquiring minds want to know
... Two detectors – one near, one far High statistics – challenge for accelerator and detector On and off axis ...
... Two detectors – one near, one far High statistics – challenge for accelerator and detector On and off axis ...
Lecture24
... The CMB was already visible in the data taken by Dunham and Adams of the properties of CN in the interstellar medium …back in 1937 The saw that CN was excited as if it was immersed in a thermal bath of radiation of temperature ...
... The CMB was already visible in the data taken by Dunham and Adams of the properties of CN in the interstellar medium …back in 1937 The saw that CN was excited as if it was immersed in a thermal bath of radiation of temperature ...
Bang To Sol - Transcript
... just about nothing, space zoomed faster than thought to enormous size… good thing too because gravity was about to squeeze that baby universe back into the nothingness it came from. That first zoom happened a whole lot faster than the speed of light and is called inflation. Since then the universe h ...
... just about nothing, space zoomed faster than thought to enormous size… good thing too because gravity was about to squeeze that baby universe back into the nothingness it came from. That first zoom happened a whole lot faster than the speed of light and is called inflation. Since then the universe h ...
helium
... density is around 1000 grams per cubic centimeter. Two important changes are now occurring: No more proton-anti-proton or neutron-anti-neutron pairs ...
... density is around 1000 grams per cubic centimeter. Two important changes are now occurring: No more proton-anti-proton or neutron-anti-neutron pairs ...
Which of the following is the best description of an Sc galaxy? A) a
... Why can't we see radiation produced during the first 300,000 years of the history of the universe? A) it was all absorbed and destroyed soon after it was emitted B) it hasn't reached us yet C) it has been deflected by black holes D) it passed by our part of the universe a few billion years ago ...
... Why can't we see radiation produced during the first 300,000 years of the history of the universe? A) it was all absorbed and destroyed soon after it was emitted B) it hasn't reached us yet C) it has been deflected by black holes D) it passed by our part of the universe a few billion years ago ...
Flatness problem
The flatness problem (also known as the oldness problem) is a cosmological fine-tuning problem within the Big Bang model of the universe. Such problems arise from the observation that some of the initial conditions of the universe appear to be fine-tuned to very 'special' values, and that a small deviation from these values would have had massive effects on the nature of the universe at the current time.In the case of the flatness problem, the parameter which appears fine-tuned is the density of matter and energy in the universe. This value affects the curvature of space-time, with a very specific critical value being required for a flat universe. The current density of the universe is observed to be very close to this critical value. Since the total density departs rapidly from the critical value over cosmic time, the early universe must have had a density even closer to the critical density, departing from it by one part in 1062 or less. This leads cosmologists to question how the initial density came to be so closely fine-tuned to this 'special' value.The problem was first mentioned by Robert Dicke in 1969. The most commonly accepted solution among cosmologists is cosmic inflation, the idea that the universe went through a brief period of extremely rapid expansion in the first fraction of a second after the Big Bang; along with the monopole problem and the horizon problem, the flatness problem is one of the three primary motivations for inflationary theory.