Announcements
... after the end of nucleosynthesis the universe was a plasma The plasma was denser than the surface of the sun so it was opaque to light ...
... after the end of nucleosynthesis the universe was a plasma The plasma was denser than the surface of the sun so it was opaque to light ...
Introduction to the Big Bang Theory
... - __________________________________: All existing matter, energy & space ...
... - __________________________________: All existing matter, energy & space ...
La teoria del big bang y la formacion del Universo
... billion years ago, which is thus considered the age of the universe. • After the initial expansion, the universe cooled sufficiently to allow the formation of subatomic particles, including protons, neutrons, and electrons. Though simple atomic nuclei formed within the first three minutes after the ...
... billion years ago, which is thus considered the age of the universe. • After the initial expansion, the universe cooled sufficiently to allow the formation of subatomic particles, including protons, neutrons, and electrons. Though simple atomic nuclei formed within the first three minutes after the ...
THE COSMIC DANCE
... This coming together creates of electrons and protons to make Hydrogen gives off light we call… MICROWAVES. This is how we know what the lumps of matter look like At 380,000 years after the Big Bang—The Recombination Era. ...
... This coming together creates of electrons and protons to make Hydrogen gives off light we call… MICROWAVES. This is how we know what the lumps of matter look like At 380,000 years after the Big Bang—The Recombination Era. ...
Big Bang - WordPress.com
... was thrown out in all directions forming stars and galaxies. One piece of evidence for this is that light from distant galaxies is ‘red-shifted’. If time started at the Big Bang how could there be anything before? Other scientists have suggested the idea of an infinite number of Universes all spring ...
... was thrown out in all directions forming stars and galaxies. One piece of evidence for this is that light from distant galaxies is ‘red-shifted’. If time started at the Big Bang how could there be anything before? Other scientists have suggested the idea of an infinite number of Universes all spring ...
1_Introduction
... Universe was denser in the past; if we daringly extrapolate backward to infinite density, that was a finite time ago. ...
... Universe was denser in the past; if we daringly extrapolate backward to infinite density, that was a finite time ago. ...
Nuclear Physics
... An isotope is when atoms of an Element having the same atomic Number but different Neutron and mass number. Hydrogen has 3 isotopes: Hydrogen Deuterium Tritium ...
... An isotope is when atoms of an Element having the same atomic Number but different Neutron and mass number. Hydrogen has 3 isotopes: Hydrogen Deuterium Tritium ...
Astronomy Introduction
... • Astrophysics is a branch of astronomy that deals with the physics of the universe, including physical properties of celestial objects, as well as their interactions and behavior. Examples: galaxies, stars, planets, cosmic microwave background. • Theoretical and observational astrophysics. ...
... • Astrophysics is a branch of astronomy that deals with the physics of the universe, including physical properties of celestial objects, as well as their interactions and behavior. Examples: galaxies, stars, planets, cosmic microwave background. • Theoretical and observational astrophysics. ...
Big Bang and Synthesis of Elements
... Still, no more of complex matter could form at these temperatures. Although lighter particles, called leptons, also existed, they were prohibited from reacting with the hadrons to form more complex states of matter. These leptons, which include electrons, neutrinos and photons, would soon be able to ...
... Still, no more of complex matter could form at these temperatures. Although lighter particles, called leptons, also existed, they were prohibited from reacting with the hadrons to form more complex states of matter. These leptons, which include electrons, neutrinos and photons, would soon be able to ...
Document
... and microwaves. This phenomenon is an important tool used by astronomers to study the motion of objects in space. ...
... and microwaves. This phenomenon is an important tool used by astronomers to study the motion of objects in space. ...
George`s slides
... Since there are no stable mass-5 nuclides, combining He and tritium to get Li requires overcoming the Coulomb repulsion. So almost all of the neutrons end up in He instead! There is another gap at mass-8, so BBN ends with Li, with only trace amounts of Be produced ...
... Since there are no stable mass-5 nuclides, combining He and tritium to get Li requires overcoming the Coulomb repulsion. So almost all of the neutrons end up in He instead! There is another gap at mass-8, so BBN ends with Li, with only trace amounts of Be produced ...
The Big Bang Theory
... extraterrestrial origin that came from all directions at once radiation left over from the Big Bang In June 1995, scientists detected primordial helium in the far reaches of the universe - consistent with an important aspect of the Big Bang theory that a mixture of hydrogen and helium was created at ...
... extraterrestrial origin that came from all directions at once radiation left over from the Big Bang In June 1995, scientists detected primordial helium in the far reaches of the universe - consistent with an important aspect of the Big Bang theory that a mixture of hydrogen and helium was created at ...
presentation02 - School of Physical Sciences
... 1039 times larger than gravity. Fortunately the number of protons equals the number of electrons in the universe. If this were not true, the repulsion between the excess protons (or excess electrons) would overwhelm gravity and there would be no stars, or planets, or galaxies. ...
... 1039 times larger than gravity. Fortunately the number of protons equals the number of electrons in the universe. If this were not true, the repulsion between the excess protons (or excess electrons) would overwhelm gravity and there would be no stars, or planets, or galaxies. ...
DO NOT WRITE ON THIS PAPER Standard 1 Objective 1 Study
... 2. The spectrum of hydrogen on a distant star is red shifted. 3. Stars farthest from Earth with the greatest speed have the greatest red shift. 4. Scientists accept the Big Bang theory because evidence supports it. 5. The big bang started when all matter in the universe burst from a tiny point. 6. A ...
... 2. The spectrum of hydrogen on a distant star is red shifted. 3. Stars farthest from Earth with the greatest speed have the greatest red shift. 4. Scientists accept the Big Bang theory because evidence supports it. 5. The big bang started when all matter in the universe burst from a tiny point. 6. A ...
123mt13-2a
... Photosynthesis in bacteria evolved in direct response to the increasing amount of sunlight available as the sun warmed the presence of the Ozone layer a dwindling food supply fluctuating water levels due to periodic ice ages all of the above are important All of the other options are red herrings as ...
... Photosynthesis in bacteria evolved in direct response to the increasing amount of sunlight available as the sun warmed the presence of the Ozone layer a dwindling food supply fluctuating water levels due to periodic ice ages all of the above are important All of the other options are red herrings as ...
powerpoint - Physics @ IUPUI
... • If everything is ionized all the light gets scattered because there are now an infinite amount of energy levels for the electron. • So, the electrons scatter all the available light. • However, as the universe expands, the gas will cool, and therefore reach a point where the electrons combine with ...
... • If everything is ionized all the light gets scattered because there are now an infinite amount of energy levels for the electron. • So, the electrons scatter all the available light. • However, as the universe expands, the gas will cool, and therefore reach a point where the electrons combine with ...
The origin of elements For life we need some complexity, and
... Why is this, though? Fusion takes place when combining nuclei can make them more energetically bound than they had been. The problem here is that (1) 4 He is by far the most bound of the light elements, so that (2) essentially only hydrogen and 4 He were around after a couple of minutes. Yes, there ...
... Why is this, though? Fusion takes place when combining nuclei can make them more energetically bound than they had been. The problem here is that (1) 4 He is by far the most bound of the light elements, so that (2) essentially only hydrogen and 4 He were around after a couple of minutes. Yes, there ...
The universe - Villanova University
... After 1 million years, temperature around 3000 K, universe is now sufficiently rare to allow a lot of atoms to form, which they do. Photons can now move large distances. Universe is “visible”. ...
... After 1 million years, temperature around 3000 K, universe is now sufficiently rare to allow a lot of atoms to form, which they do. Photons can now move large distances. Universe is “visible”. ...
Slide 1
... as quark-gluon plasma, which is believed to have existed soon after the Big Bang. As the plasma cools it will model the behavior of the universe milliseconds after the big bang. Then we hope to see the “Higgs Boson” and gain some more understanding not only to why those extra chips make us fatter bu ...
... as quark-gluon plasma, which is believed to have existed soon after the Big Bang. As the plasma cools it will model the behavior of the universe milliseconds after the big bang. Then we hope to see the “Higgs Boson” and gain some more understanding not only to why those extra chips make us fatter bu ...
Age, EvoluFon, and Size of the Cosmos
... • Protons and neutrons are able to bind together to form nuclei since their binding energy is now greater than the cosmic background radia+on energy, so the background of light (photons) can’t break th ...
... • Protons and neutrons are able to bind together to form nuclei since their binding energy is now greater than the cosmic background radia+on energy, so the background of light (photons) can’t break th ...
The Big Bang
... exploded out of the big bang did not distribute itself evenly throughout the universe? What evidence supports this hypothesis? According to this theory, how old is the universe? ...
... exploded out of the big bang did not distribute itself evenly throughout the universe? What evidence supports this hypothesis? According to this theory, how old is the universe? ...
Summary for week #2
... Nuclear fission involves splitting heavy nuclei (e.g. uranium) into lighter pieces. Nuclear fusion involves joining together light nuclei (e.g. hydrogen) to make heavier ones. Fusion is hard because electric forces between the protons tend to repel nuclei – we need high temperatures (large average k ...
... Nuclear fission involves splitting heavy nuclei (e.g. uranium) into lighter pieces. Nuclear fusion involves joining together light nuclei (e.g. hydrogen) to make heavier ones. Fusion is hard because electric forces between the protons tend to repel nuclei – we need high temperatures (large average k ...
Formation of the Universe Test Review Packet
... 9.Use the diagram of the electromagnetic spectrum to answer to following questions: a. What wavelength range does human eye see between? b. Which part of the spectrum has longest wavelength? ...
... 9.Use the diagram of the electromagnetic spectrum to answer to following questions: a. What wavelength range does human eye see between? b. Which part of the spectrum has longest wavelength? ...