unit a assessment 2 - d
... 4. How does the sun impact the Earth both positively and negatively? a. http://imagine.gsfc.nasa.gov/docs/science/know_l1/sun.html b. http://www.nbcnews.com/science/tag/sun http://www.sciencedaily.com/news/space_time/sun/ c. http://www.windows2universe.org/sun/sun.html Colorado Academic Standards in ...
... 4. How does the sun impact the Earth both positively and negatively? a. http://imagine.gsfc.nasa.gov/docs/science/know_l1/sun.html b. http://www.nbcnews.com/science/tag/sun http://www.sciencedaily.com/news/space_time/sun/ c. http://www.windows2universe.org/sun/sun.html Colorado Academic Standards in ...
The IR Universe
... Spitzer has found optically invisible galaxies so distant that we see them as they were only 3 billion years after the Big Bang. These galaxies are obscured by silicate dust, suggesting that planets could have formed even at this early time in the history of the Universe. ...
... Spitzer has found optically invisible galaxies so distant that we see them as they were only 3 billion years after the Big Bang. These galaxies are obscured by silicate dust, suggesting that planets could have formed even at this early time in the history of the Universe. ...
THE DOPPLER EFFECT
... attraction among the galaxies. We do not presently know whether there is enough mass in the universe to cause enough attraction to halt the expansion eventually. But perhaps more interesting than the distant future of the universe is what its present expansion implies about its past. Extrapolating b ...
... attraction among the galaxies. We do not presently know whether there is enough mass in the universe to cause enough attraction to halt the expansion eventually. But perhaps more interesting than the distant future of the universe is what its present expansion implies about its past. Extrapolating b ...
Introduction to Electromagnetism
... Neutrinos are significant – though they have tiny mass, there are very many of them (over 1090), but still they are less than 30% of dark matter Probably WIMPS – Weakly Interacting Massive Particles – not yet discovered... ...
... Neutrinos are significant – though they have tiny mass, there are very many of them (over 1090), but still they are less than 30% of dark matter Probably WIMPS – Weakly Interacting Massive Particles – not yet discovered... ...
Unit 3 - Section 9.7 2011 Universe Origin
... were moving away from each other at a rate constant to the distance between them. In 1929, he produced Hubble’s Law: The Universe is expanding at a constant rate as determined by the linear proportional relationship between recessional velocity (i.e., rate at which an object is moving away from Eart ...
... were moving away from each other at a rate constant to the distance between them. In 1929, he produced Hubble’s Law: The Universe is expanding at a constant rate as determined by the linear proportional relationship between recessional velocity (i.e., rate at which an object is moving away from Eart ...
Bill Nye – Outer Space Worksheet
... Students will understand the scale of size, distance between objects in the universe. ...
... Students will understand the scale of size, distance between objects in the universe. ...
幻灯片 1 - 中国科学院理论物理研究所
... The nonvanishing and a very small dark energy density poses a serious challenge to string theory. Since in string theory, as in a quantum field theory, dark energy is understood as vacuum energy generated by quantum fluctuations. ...
... The nonvanishing and a very small dark energy density poses a serious challenge to string theory. Since in string theory, as in a quantum field theory, dark energy is understood as vacuum energy generated by quantum fluctuations. ...
Reading Selections for ID1113, p
... a. the movement of galaxies away from the Earth I also think this is an answer b. the expanding movement of the universe best answer; see paragraph 6 c. the gravitational attraction of stars 2. This text can be seen in terms of: Perhaps the question should be, “This text presents…” a. a sugges ...
... a. the movement of galaxies away from the Earth I also think this is an answer b. the expanding movement of the universe best answer; see paragraph 6 c. the gravitational attraction of stars 2. This text can be seen in terms of: Perhaps the question should be, “This text presents…” a. a sugges ...
Unit 6: Space - Galena Park ISD
... measure distances and sizes in the universe. (8.8D) Light travels at 300,000 kilometers per second. This is known as the speed of light. It takes a ray of light about 8 minutes to go from the Sun to Earth. Because of the vast distances between stars and other objects in space, distances are measured ...
... measure distances and sizes in the universe. (8.8D) Light travels at 300,000 kilometers per second. This is known as the speed of light. It takes a ray of light about 8 minutes to go from the Sun to Earth. Because of the vast distances between stars and other objects in space, distances are measured ...
word document - FacStaff Home Page for CBU
... In the last section we looked at the stars that surround us. They were many in number and many in type. In this last section we try to organize and relate all of these stars to each other and to us. In doing this we will reach out into space and time as far as we possibly can. In Section A we consid ...
... In the last section we looked at the stars that surround us. They were many in number and many in type. In this last section we try to organize and relate all of these stars to each other and to us. In doing this we will reach out into space and time as far as we possibly can. In Section A we consid ...
PDF - Current Science
... Edwin Hubble is credited with the discovery that distant galaxies appear to be receding from us: we live in an expanding universe. We now know that this expansion is at an ever-increasing rate – the universe is accelerating! We live in a hot Big-Bang universe that has been changing over cosmic time ...
... Edwin Hubble is credited with the discovery that distant galaxies appear to be receding from us: we live in an expanding universe. We now know that this expansion is at an ever-increasing rate – the universe is accelerating! We live in a hot Big-Bang universe that has been changing over cosmic time ...
Activity 2 The Signature of the Stars
... The slope of this line is called the Hubble constant, H0. Write the equation for this line using H0 as your slope. What does it tell you about the relationship between the speed of galaxies ...
... The slope of this line is called the Hubble constant, H0. Write the equation for this line using H0 as your slope. What does it tell you about the relationship between the speed of galaxies ...
- hcstonline.org
... 10. Describe one piece of evidence that supports the Big Bang Theory and explain why it supports it. (A5) 11. Explain how scientists can find evidence for something that happened more than 10 billion years ago. (A5) 12. Describe how Hubble’s Law supports the idea that the universe is expanding. (A6) ...
... 10. Describe one piece of evidence that supports the Big Bang Theory and explain why it supports it. (A5) 11. Explain how scientists can find evidence for something that happened more than 10 billion years ago. (A5) 12. Describe how Hubble’s Law supports the idea that the universe is expanding. (A6) ...
Solid State 3, Problem Set 2 Lecturer: Eytan Grosfeld
... for the clean 1D tight-binding chain (use the exact spectrum). 2. Transport on the surface of a topological insulator Electrons confined to the two-dimensional surface of a topological insulator tuned to the Dirac point are described by the continuum limit Hamiltonian H = vσ · p where σa are Pauli m ...
... for the clean 1D tight-binding chain (use the exact spectrum). 2. Transport on the surface of a topological insulator Electrons confined to the two-dimensional surface of a topological insulator tuned to the Dirac point are described by the continuum limit Hamiltonian H = vσ · p where σa are Pauli m ...
Birth, Age and the Future of the Universe
... galaxies in clusters of galaxies are good standard candles (note the relatively small scatter!). As they get fainter they must be more distant, but at the same time their recession velocities increase. ( Linear expansion requires in this logarithmic plot a slope of 0.2, which is shown). ...
... galaxies in clusters of galaxies are good standard candles (note the relatively small scatter!). As they get fainter they must be more distant, but at the same time their recession velocities increase. ( Linear expansion requires in this logarithmic plot a slope of 0.2, which is shown). ...
Modification of Newton`s law of gravity at very large distances
... and acquire a dependence on spatial scales. In particular, the renormalization of the gravitational constant leads to the deviation of the law of gravity from the Newton’s law in some range of scales rmin < r < rmax , in which the gravitational potential shows essentially logarithmic ∼ ln r (instead ...
... and acquire a dependence on spatial scales. In particular, the renormalization of the gravitational constant leads to the deviation of the law of gravity from the Newton’s law in some range of scales rmin < r < rmax , in which the gravitational potential shows essentially logarithmic ∼ ln r (instead ...
The Miracle of Stars or Why We are Here
... There must be light Electromagnetism is the force that governs the radiation of light. It must be present exactly as it is in order to carry energy away from stars so that stars stay in equilibrium long enough to cook the elements and warm our planet. This balance of gravitational collapse, nucl ...
... There must be light Electromagnetism is the force that governs the radiation of light. It must be present exactly as it is in order to carry energy away from stars so that stars stay in equilibrium long enough to cook the elements and warm our planet. This balance of gravitational collapse, nucl ...
Test string theory with primordial gravitational wave
... The assumptions: 1、Inflation is the paradigm of early universe. 2、The higher-order derivative terms in superstring theory is significant. ...
... The assumptions: 1、Inflation is the paradigm of early universe. 2、The higher-order derivative terms in superstring theory is significant. ...
SGES 1302 INTRODUCTION TO EARTH SYSTEM
... Gravitation attraction of the atoms within the stellar nebulla cause it to begin to collapse. As it collapse, it heats up and its density and pressure increase, forming a proto star. Eventually it heats up to extreme temperatures, and the pressure within is high enough to start a fusion reaction (H ...
... Gravitation attraction of the atoms within the stellar nebulla cause it to begin to collapse. As it collapse, it heats up and its density and pressure increase, forming a proto star. Eventually it heats up to extreme temperatures, and the pressure within is high enough to start a fusion reaction (H ...
THE BIG BANG THEORY
... • 1960: spectroscopic studies of stars showed that the helium accounted for 20-30% of the mass of stars, the ...
... • 1960: spectroscopic studies of stars showed that the helium accounted for 20-30% of the mass of stars, the ...
Chapter 30 Review
... Model that says the universe began as a fluctuation in a vacuum and expanded very rapidly for a fraction of a second before settling into a more orderly expansion ...
... Model that says the universe began as a fluctuation in a vacuum and expanded very rapidly for a fraction of a second before settling into a more orderly expansion ...
U7 Review WS KEY
... a. red shift of galaxies c. galactic clusters b. cosmic background radiation d. abundance of light elements (H, He and Li) The first elements that were formed in the universe were? a. hydrogen and lithium c. hydrogen and helium b. lithium and helium d. lithium and beryllium 10. I can describe tool ...
... a. red shift of galaxies c. galactic clusters b. cosmic background radiation d. abundance of light elements (H, He and Li) The first elements that were formed in the universe were? a. hydrogen and lithium c. hydrogen and helium b. lithium and helium d. lithium and beryllium 10. I can describe tool ...
Astrophysics Presentation
... This enables us to study the relationship between the mass and the other properties of stars It is found that there is a simple massluminosity relationship for main sequence stars The luminosity increases with the cube of the mass (this is consistent with other clues about the size, density and mass ...
... This enables us to study the relationship between the mass and the other properties of stars It is found that there is a simple massluminosity relationship for main sequence stars The luminosity increases with the cube of the mass (this is consistent with other clues about the size, density and mass ...
Dark Matter - Otterbein University
... • Tried to “debug” their horn antenna • Couldn’t get rid of “background noise” Signal from Big Bang • Very, very isotropic (1 part in 100,000) ...
... • Tried to “debug” their horn antenna • Couldn’t get rid of “background noise” Signal from Big Bang • Very, very isotropic (1 part in 100,000) ...
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.