The Big Bang Theory
... Weak and Strong forces) were indistinguishable (unified field theory). As the universe began to expand and cool, the symmetry is broken and triggered a sudden inflation in the size of universe! Inflation of the universe solves the flatness problem. Take a balloon as example. If the balloon expands i ...
... Weak and Strong forces) were indistinguishable (unified field theory). As the universe began to expand and cool, the symmetry is broken and triggered a sudden inflation in the size of universe! Inflation of the universe solves the flatness problem. Take a balloon as example. If the balloon expands i ...
Origin of Life - BlackSage.com
... • Occurred during seconds 100 to 300 following big bang temperature cools allowing hydrogen to form • Result of temperature of universe dropping below that required for nuclear fusion (4 H to He) forms Helium • Produced a large amount of Helium which is very stable and cannot be converted easily int ...
... • Occurred during seconds 100 to 300 following big bang temperature cools allowing hydrogen to form • Result of temperature of universe dropping below that required for nuclear fusion (4 H to He) forms Helium • Produced a large amount of Helium which is very stable and cannot be converted easily int ...
Final exam solutions - University of Rochester
... _____ Some scientists claim that new universes might be spawned inside black holes. _____ The existence of dark matter is needed to account for the structure seen in the cosmic microwave background. _____ According to the hot big bang model, the cosmic microwave background was formed during the peri ...
... _____ Some scientists claim that new universes might be spawned inside black holes. _____ The existence of dark matter is needed to account for the structure seen in the cosmic microwave background. _____ According to the hot big bang model, the cosmic microwave background was formed during the peri ...
The Black Hole at the Beginning of Time
... fraction of a second after the big bang—using only a few equations (chief among them the ones provided by Albert Einstein) and five independent numbers, or parameters. These parameters include the densities of ordinary matter, dark matter and dark energy (more on these in a moment), along with the a ...
... fraction of a second after the big bang—using only a few equations (chief among them the ones provided by Albert Einstein) and five independent numbers, or parameters. These parameters include the densities of ordinary matter, dark matter and dark energy (more on these in a moment), along with the a ...
GY 112 Lecture Notes - University of South Alabama
... “non-exact sciences”, but they are better considered “philosophical sciences”. Thought and reasoning need both types of science and there are some areas where exactness of physics permits really good interpretations of ancient processes like the origin of the Universe. For example, using physical la ...
... “non-exact sciences”, but they are better considered “philosophical sciences”. Thought and reasoning need both types of science and there are some areas where exactness of physics permits really good interpretations of ancient processes like the origin of the Universe. For example, using physical la ...
Wien`s law - Uplift Education
... (24%). In 1960 it was proposed that sometime during the early history of the Universe, long before any star, Universe was at a sufficiently high temperature to produce helium by fusion. In this process many high energy photons would be produced. The CMB (Cosmic Microwave Background Radiation) radiat ...
... (24%). In 1960 it was proposed that sometime during the early history of the Universe, long before any star, Universe was at a sufficiently high temperature to produce helium by fusion. In this process many high energy photons would be produced. The CMB (Cosmic Microwave Background Radiation) radiat ...
Description
... There is no pre-requisite on the science background. Some multimedia online materials will be incorporated into our study. A non-graded pre-test will be required from each student at the beginning of the course. Course Objectives ...
... There is no pre-requisite on the science background. Some multimedia online materials will be incorporated into our study. A non-graded pre-test will be required from each student at the beginning of the course. Course Objectives ...
Wilmslow Guild Lecture 2008
... In the first phase of the Big Bang, only the lightest elements including hydrogen (74%), helium (23%), lithium (2%), and beryllium (1%) were synthesised. The earliest stars (Population II, i.e. 1st generation), contained none of the heavier elements to start with. These are still visible by observin ...
... In the first phase of the Big Bang, only the lightest elements including hydrogen (74%), helium (23%), lithium (2%), and beryllium (1%) were synthesised. The earliest stars (Population II, i.e. 1st generation), contained none of the heavier elements to start with. These are still visible by observin ...
Astronomy- The Original Science
... •Newton’s law of gravity explained why all of the planets orbit the most massive object in the solar system---the sun. •Newton once said that “I could see so far because I stood on the shoulders of giants.” He gave credit the observations and ideas of all the scientists who came before him. ...
... •Newton’s law of gravity explained why all of the planets orbit the most massive object in the solar system---the sun. •Newton once said that “I could see so far because I stood on the shoulders of giants.” He gave credit the observations and ideas of all the scientists who came before him. ...
Brane World - University of Southampton
... If the vacuum is full of all this stuff shouldn’t we be pulled gravitationally by it? Since it is uniformily distributed there is no net pull (equal space to all sides) But General Relativity says the energy should uniformily curve space-time… the Universe should be the size of a grapefruit!! There’ ...
... If the vacuum is full of all this stuff shouldn’t we be pulled gravitationally by it? Since it is uniformily distributed there is no net pull (equal space to all sides) But General Relativity says the energy should uniformily curve space-time… the Universe should be the size of a grapefruit!! There’ ...
Stefan-Boltzmann`s law Wien`s law
... Calculation shows that the helium produced by nuclear fusion within stars cannot account for the real amount of helium in Universe (24%). In 1960 it was proposed that sometime during the early history of the Universe, long before any star, Universe was at a sufficiently high temperature to produce h ...
... Calculation shows that the helium produced by nuclear fusion within stars cannot account for the real amount of helium in Universe (24%). In 1960 it was proposed that sometime during the early history of the Universe, long before any star, Universe was at a sufficiently high temperature to produce h ...
DTU_9e_ch18 - University of San Diego Home Pages
... explosively in an event called the Big Bang. The Hubble law describes the ongoing expansion of the universe and the rate at which superclusters of galaxies move apart. The observable universe extends about 13.7 billion ly in every direction from Earth to what is called the cosmic light horizon. We c ...
... explosively in an event called the Big Bang. The Hubble law describes the ongoing expansion of the universe and the rate at which superclusters of galaxies move apart. The observable universe extends about 13.7 billion ly in every direction from Earth to what is called the cosmic light horizon. We c ...
Miss Nevoral - Ms. Nevoral`s site
... separates light into its basic components. It allows the user to view the spectral lines produced by stars and galaxies and to measure their wavelengths. 10. What does the cosmological red shift suggest about the motion of galaxies? The cosmological red shift suggests that galaxies are moving away f ...
... separates light into its basic components. It allows the user to view the spectral lines produced by stars and galaxies and to measure their wavelengths. 10. What does the cosmological red shift suggest about the motion of galaxies? The cosmological red shift suggests that galaxies are moving away f ...
ASTR 1120-001 Final Examination Phil Armitage, Bruce Ferguson
... Cool gas that emits little radiation in elliptical galaxies Unseen mass whose gravity affects the observed motion of gas and stars A force or substance that is causing the expansion of the Universe to accelerate ...
... Cool gas that emits little radiation in elliptical galaxies Unseen mass whose gravity affects the observed motion of gas and stars A force or substance that is causing the expansion of the Universe to accelerate ...
... coming from a different direction than it really is - the star appearsto move slightly in the sky. It's an effect called gravitationallensing. Scientiststhought that they might be able to look at starsjust behind Jupiter to observewarped light rays,but Jupiter turned out to not be massiveenough to d ...
Structure of the Universe
... H, through the Hubble law: We can always get V from the red shift, so if we know d or H we can find the other ...
... H, through the Hubble law: We can always get V from the red shift, so if we know d or H we can find the other ...
Show Me God - Clover Sites
... 1. Space Time Theorem: everything can be traced back to a singular beginning of matter and energy – space and time. 2. The Anthropic Principle: that the conditions in the universe were finely tuned to make life possible. It is well known that our existence in this universe depends on numerous cosmol ...
... 1. Space Time Theorem: everything can be traced back to a singular beginning of matter and energy – space and time. 2. The Anthropic Principle: that the conditions in the universe were finely tuned to make life possible. It is well known that our existence in this universe depends on numerous cosmol ...
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 ...
Universe and Stars Project Final Due Date
... Include your sources at the end and where you found the information for each slide. (25pts) Each slide should have a picture(s) (25pts) Include at least 2 video clips, no longer than 8 min each. (25pts) Your powerpoint slides must address the following topics ( 100pts): 1. Describe how the Universe ...
... Include your sources at the end and where you found the information for each slide. (25pts) Each slide should have a picture(s) (25pts) Include at least 2 video clips, no longer than 8 min each. (25pts) Your powerpoint slides must address the following topics ( 100pts): 1. Describe how the Universe ...
II. The Universe Around Us
... The Cosmological Principle Considering the largest scales in the Universe, we make the following fundamental assumptions: 1) Homogeneity: On the largest scales, the Universe has the same physical properties Every region has the same physical properties (mass density, expansion rate, visible vs. ...
... The Cosmological Principle Considering the largest scales in the Universe, we make the following fundamental assumptions: 1) Homogeneity: On the largest scales, the Universe has the same physical properties Every region has the same physical properties (mass density, expansion rate, visible vs. ...
Back ground information
... Scientists also look for the oldest stars and other celestial bodies in the universe. By studying these bodies, understanding how long it took them to form, and knowing how old they are, scientists can create a bound for the age of the universe. That is, if the oldest star is so many billion years o ...
... Scientists also look for the oldest stars and other celestial bodies in the universe. By studying these bodies, understanding how long it took them to form, and knowing how old they are, scientists can create a bound for the age of the universe. That is, if the oldest star is so many billion years o ...
21structure1i
... We can use spectroscopy and photometry to get the spectral type and the apparent magnitude (m) of a star We can estimate the absolute magnitude (M) from the spectral type With the two magnitudes we can get the distance: ...
... We can use spectroscopy and photometry to get the spectral type and the apparent magnitude (m) of a star We can estimate the absolute magnitude (M) from the spectral type With the two magnitudes we can get the distance: ...
P1b revision - Portland Place School
... If starlight shows a lengthening of wavelength ( decrease of frequency ) it must mean the star or galaxy is moving away from us. 9. Big Bang theory states the Universe is expanding and at the beginning of time it must have been in a small space. is backed up by observations of red shift in 196 ...
... If starlight shows a lengthening of wavelength ( decrease of frequency ) it must mean the star or galaxy is moving away from us. 9. Big Bang theory states the Universe is expanding and at the beginning of time it must have been in a small space. is backed up by observations of red shift in 196 ...
Big Bang
The Big Bang theory is the prevailing cosmological model for the universe from the earliest known periods through its subsequent large-scale evolution. The model accounts for the fact that the universe expanded from a very high density and high temperature state, and offers a comprehensive explanation for a broad range of observed phenomena, including the abundance of light elements, the cosmic microwave background, large scale structure, and Hubble's Law. If the known laws of physics are extrapolated beyond where they are valid, there is a singularity. Modern measurements place this moment at approximately 13.8 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, and later simple atoms. Giant clouds of these primordial elements later coalesced through gravity to form stars and galaxies.Since Georges Lemaître first noted, in 1927, that an expanding universe might be traced back in time to an originating single point, scientists have built on his idea of cosmic expansion. While the scientific community was once divided between supporters of two different expanding universe theories, the Big Bang and the Steady State theory, accumulated empirical evidence provides strong support for the former. In 1929, from analysis of galactic redshifts, Edwin Hubble concluded that galaxies are drifting apart, important observational evidence consistent with the hypothesis of an expanding universe. In 1965, the cosmic microwave background radiation was discovered, which was crucial evidence in favor of the Big Bang model, since that theory predicted the existence of background radiation throughout the universe before it was discovered. More recently, measurements of the redshifts of supernovae indicate that the expansion of the universe is accelerating, an observation attributed to dark energy's existence. The known physical laws of nature can be used to calculate the characteristics of the universe in detail back in time to an initial state of extreme density and temperature.