Physical Cosmology

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Cosmology: Part 1 Physical Cosmology

Duration: 19:37
Updated: 28 Jun 2013

Cosmology is the study of the origins and eventual fate of the universe. I am only talking about some basic concepts to consider when taking this top down ap...

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Implications of Physical Cosmology

Duration: 6:10
Updated: 31 Jul 2013

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Millennium Simulation: Physical cosmology

Duration: 3:22
Updated: 25 Jan 2013

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All About - Physical cosmology

Duration: 3:05
Updated: 26 Jun 2014

What is Physical cosmology? A report all about Physical cosmology for homework/assignment Physical cosmology is the study of the largest-scale structures and dynamics of the Universe and is concerned with fundamental questions about its formation, evolution, and ultimate fate. For most of human history, it was a branch of metaphysics and religion. Cosmology as a science originated with the Copernican principle, which implies that celestial bodies obey identical physical laws to those on Earth, and Newtonian mechanics, which first allowed us to understand those physical laws. Intro/Outro music: Discovery Hit/Chucky the Construction Worker - Kevin MacLeod (incompetech.com) Licensed under CC:BA 3.0 Text derived from: http://en.wikipedia.org/wiki/Physical_cosmology Text to Speech powered by TTS-API.COM Images are Public Domain

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Dark Matter ; the Undetectable Mass

Duration: 44:28
Updated: 11 Dec 2013

A look at the theory of dark matter -- the undetectable mass thought to make up 96% of the universe, and dark energy -- the unseen force that is expanding the universe. Physicists use the latest cutting-edge technology and conduct groundbreaking experiments in an attempt to discover more about these mysterious forces. In astronomy and cosmology, dark matter is a type of matter hypothesized to account for a large part of the total mass in the universe. Dark matter cannot be seen directly with telescopes; evidently it neither emits nor absorbs light or other electromagnetic radiation at any significant level. Instead, its existence and properties are inferred from its gravitational effects on visible matter, radiation, and the large-scale structure of the universe. According to the Planck mission team, and based on the standard model of cosmology, the total mass--energy of the universe contains 4.9% ordinary matter, 26.8% dark matter and 68.3% dark energy. Thus, dark matter is estimated to constitute 84.5% of the total matter in the universe and 26.8% of the total content of the universe. Dark matter came to the attention of astrophysicists due to discrepancies between the mass of large astronomical objects determined from their gravitational effects and the mass calculated from the "luminous matter" they contain: stars, gas, and dust. It was first postulated by Jan Oort in 1932 to account for the orbital velocities of stars in the Milky Way and by Fritz Zwicky in 1933 to account for evidence of "missing mass" in the orbital velocities of galaxies in clusters. Subsequently, many other observations have indicated the presence of dark matter in the universe, including the rotational speeds of galaxies by Vera Rubin, in the 1960s--1970s, gravitational lensing of background objects by galaxy clusters such as the Bullet Cluster, the temperature distribution of hot gas in galaxies and clusters of galaxies, and more recently the pattern of anisotropies in the cosmic microwave background. According to consensus among cosmologists, dark matter is composed primarily of a not yet characterized type of subatomic particle. The search for this particle, by a variety of means, is one of the major efforts in particle physics today. Although the existence of dark matter is generally accepted by the mainstream scientific community, there is no generally agreed direct detection of it. Other theories, including MOND and TeVeS, are some alternative theories of gravity proposed to try to explain the anomalies for which dark matter is intended to account. In physical cosmology and astronomy, dark energy is a hypothetical form of energy that permeates all of space and tends to accelerate the expansion of the universe. Dark energy is the most accepted hypothesis to explain observations since the 1990s that indicate that the universe is expanding at an accelerating rate. According to the Planck mission team, and based on the standard model of cosmology, the total mass--energy of the universe contains 4.9% ordinary matter, 26.8% dark matter and 68.3% dark energy. Two proposed forms for dark energy are the cosmological constant, a constant energy density filling space homogeneously, and scalar fields such as quintessence or moduli, dynamic quantities whose energy density can vary in time and space. Contributions from scalar fields that are constant in space are usually also included in the cosmological constant. The cosmological constant is physically equivalent to vacuum energy. Scalar fields which do change in space can be difficult to distinguish from a cosmological constant because the change may be extremely slow. High-precision measurements of the expansion of the universe are required to understand how the expansion rate changes over time. In general relativity, the evolution of the expansion rate is parameterized by the cosmological equation of state (the relationship between temperature, pressure, and combined matter, energy, and vacuum energy density for any region of space). Measuring the equation of state for dark energy is one of the biggest efforts in observational cosmology today. Adding the cosmological constant to cosmology's standard FLRW metric leads to the Lambda-CDM model, which has been referred to as the "standard model" of cosmology because of its precise agreement with observations. Dark energy has been used as a crucial ingredient in a recent attempt to formulate a cyclic model for the universe.

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The Physical Universe in Buddhist Cosmology

Duration: 2:51
Updated: 03 Oct 2013

Welcome! Continuing our studies on Buddhism, our topic in this video is about the big bang, the earth's life span and the galaxy. I am Brian Ruhe, a Buddhist follower and lay teacher. I teach Buddhism and meditation in Vancouver, Canada in adult ed. at several school boards and community centres. I am also available to lead private and professional retreats, and to mentor on a one-to-one basis by Skype. You can call my Skype address at: BrianARuhe . You can join me on Facebook at: Brian Ruhe Vancouver. For more information please do visit my website www.theravada.ca . My latest book "A SHORT WALK ON AN ANCIENT PATH - A Buddhist Exploration of Meditation, Karma and Rebirth", is available in book or ebook form at Amazon.com at: http://www.amazon.com/Short-Walk-Ancient-Path-Exploration/dp/0968395120/ref=s... I was a Buddhist monk in Chiangmai, Thailand and I have been teaching Theravada Buddhism and meditation for 16 years. My first book from 1999, is "Freeing the Buddha," also at Amazon. I follow the Theravada Forest tradition with Ajahn Sona at www.birken.ca .

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Physical Cosmology

Duration: 3:42
Updated: 13 Feb 2013

Think. Create. Inspire. Relax. Become.

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The Making Of Physical Cosmology

Duration: 28:29
Updated: 13 Feb 2013

Think. Create. Inspire. Relax. Become.

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Inflation (cosmology) Cosmology Lecture 9

Duration: 3:07
Updated: 18 May 2014

In physical cosmology, cosmic inflation, cosmological inflation, or just inflation is the expansion of space in the early universe at a rate much faster than the speed of light. The inflationary epoch lasted from 10−36 seconds after the Big Bang to sometime between 10−33 and 10−32 seconds.

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Cosmology Research Team

Duration: 8:01
Updated: 05 Nov 2013

Cosmology is the study of the origins and eventual fate of the universe. Physical cosmology is the scholarly and scientific study of the origin, evolution, structure and dynamics

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Q-Cosmology

Duration: 9:30
Updated: 13 Jun 2013

Cosmology -is the study of the Universe in its totality, and by extension, humanity's place in it. Though the word cosmology is recent (first used in 1730 in...

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God as Ground? Cosmology and Non causal Conceptions of the Divine, Willem Drees

Duration: 61:50
Updated: 13 Jul 2013

Some theistic arguments envisage God as the 'First Cause', as a being preexisting relative to the cosmos, all of created reality. This would answer to some e...

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Cosmic Time - The True Nature Of Time - Science Physics Universe Documentary

Duration: 57:52
Updated: 03 May 2014

Cosmic Time - The True Nature Of Time Science Physics Universe Documentary Cosmic Time - The True Nature Of Time Science Physics Universe Documentary Cosmic Time - The True Nature Of Time Science Physics Universe Documentary Cosmic Time - The True Nature Of Time Science Physics Universe Documentary Cosmic Time,The True Nature Of Time,Nature Of Time,Cosmic,Time Cosmic time (also known as time since the big bang) is the time coordinate commonly used in the Big Bang models of physical cosmology. It is defined for homogeneous, expanding universes as follows: Choose a time coordinate so that the universe has the same density everywhere at each moment in time (the fact that this is possible means that the universe is, by definition, homogeneous). Measure the passage of time using clocks moving with the Hubble flow. Choose the big bang singularity as the origin of the time coordinate. Cosmic time is the standard time coordinate for specifying the Friedmann--Lemaître--Robertson--Walker solutions of Einstein's equations. If instead the present is chosen as the origin, the scale is called the lookback time (or look back time).

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Andreas Albrecht, "The Physical Basis of Probabilities & Applications to Cosmology"

Duration: 9:53
Updated: 26 Apr 2014

fqxi.org The past century in physics seems to lead in a surprising direction: away from physics as a description of objects and their interactions, and towards physics as a description of the evolution of information. Is this the correct way to think about physics and the physical world? What is information? What does the term "information" even mean? What role does information play in quantum gravity, cosmology, thermodynamics, life and consciousness, and what links does it provide between these areas? FQXi's international, interdisciplinary conference on the Physics of Information brought together leading researchers to discuss the significance, meaning, and uses of information in physics.

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Teach Astronomy - Newton's Cosmology

Duration: 1:07
Updated: 06 Jun 2013

http://www.teachastronomy.com/ Newton's theory of gravity set the stage for physical cosmology, a study of the universe based on the idea of laws of physics ...

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George F.R. Ellis, On the Nature of Cosmology Today (2012 Copernicus Center Lecture)

Duration: 104:33
Updated: 18 Aug 2013

Cosmology is today a precision science with masses of high quality data every increasing our understanding of the physical universe, but paradoxically theore...

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Prof. Hans Halvorson - "DOES THE UNIVERSE NEED GOD?"

Duration: 87:40
Updated: 17 Mar 2014

Twentieth century physical cosmology made "the universe" into a precise theoretical object, governed by the laws of the general theory of relativity. But one result of this theoretical consolidation is that "the universe" becomes autonomous: it is neither brought into existence by some supernatural being, nor does its continued existence require any external intervention. Indeed, physical cosmology has no need for the hypothesis of a Creator or Sustainer of the universe. Shouldn't we then conclude that the universe has no need for God? On the contrary, I argue that the absence of God from physical cosmology provides no evidence against the existence of a divine Creator. In fact, if the universe and its laws are the result of a free, creative act of God, then God is not constrained by natural laws, and God should not occur as the explanans in any scientific account of the universe. PROF. HANS HALVORSON is professor of philosophy at Princeton University. He has written extensively on the foundations of quantum physics, philosophy of science, and the relationship between science and theology, with articles appearing in the Journal of Mathematical Physics, Physical Review, The British Journal for Philosophy of Science, and The European Journal for Philosophy of Religion, among others. In 2008 he won a Mellon Foundation New Directions Fellowship, to pursue research in category theory and especially topos theory. Halvorson has received the Cushing Memorial Prize in the History and Philosophy of Physics (2004), Best Article of the Year by a Recent Ph.D. (Philosophy of Science Association, 2001), and Ten Best Philosophy Articles of the Year (The Philosopher's Annual, both 2001 and 2002).

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Select Parameters of Physical and Biblical Cosmology

Duration: 5:28
Updated: 16 Aug 2012

Gary Clifford Gibson reads an essay on selected parameters of cosmology comparing and contrasting scientific and Biblical points.

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science-multilevel-cosmology

Duration: 9:59
Updated: 05 Aug 2012

SCIENCE: MULTILEVEL COSMOLOGY - the beginning and end of our universe. nanogravity microgravity atronomy astrophysics cosmology cosmogyny multilevel universe...

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CaptainUMusic-Sounds Of time and space-Full Album

Duration: 53:32
Updated: 11 Apr 2014

1:Intro/Cosmonaut 0:00 2:Death of the Universe 4:17 3:Tempel 1 9:45 4:Intergalactic Space 13:05 5:Reality and Probability 16:47 6:Creation myth 22:02 7:Dark Matter 26:57 8:Physical Cosmology 31:12 9:Radiation 34:41 10:Disnomia 37:15 11;Isotropic microwave radiation 41:34 12:Cosmic Microwave 46:14 13:outro/Saturn Radio Signal 51:06

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Dark Energy and the Makings of the Universe Documentary

Duration: 45:51
Updated: 16 Jun 2014

In physical cosmology and astronomy, dark energy is a hypothetical form of energy that permeates all of space and tends to accelerate the expansion of the universe.Dark energy is the most accepted hypothesis to explain observations since the 1990s that indicate that the universe is expanding at an accelerating rate. According to the Planck mission team, and based on the standard model of cosmology, on a mass--energy equivalence basis the universe contains 26.8% dark matter, 68.3% dark energy (for a total of 95.1%) and 4.9% ordinary matter.[2][3][4][5] Again on a mass--energy equivalence basis, the density of dark energy (1.67 × 10−27 kg/m3) is very low: in the solar system, it is estimated only 6 tons of dark energy would be found within the radius of Pluto's orbit. However, it comes to dominate the mass--energy of the universe because it is uniform across space.

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The Amazing Fractal

Duration: 4:22
Updated: 07 Jul 2012

In physical cosmology, fractal cosmology is a set of minority cosmological theories which state that the distribution of matter in the Universe, or the struc...

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Universe and Space - After the Big Bang

Duration: 5:32
Updated: 04 Apr 2014

In physical cosmology, the Big Bang theory or theory of the Big Bang is a scientific model that attempts to explain the origin of the Universe and its subsequent development from a spacetime singularity. The term "Big Bang" are both used to refer specifically to the time when the expansion of the universe observable (measured in Hubble's law) began, and in a more general sense to refer to the cosmological paradigm explaining the origin and evolution.

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This page contains text from Wikipedia, the Free Encyclopedia - http://en.wikipedia.org/wiki/Physical_cosmology

This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.

This page contains text from Wikipedia, the Free Encyclopedia - http://en.wikipedia.org/wiki/Willem_Drees

This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.

This page contains text from Wikipedia, the Free Encyclopedia - http://en.wikipedia.org/wiki/Andreas_Albrecht

This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.

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Related Topics

Cosmology: Part 1 Physical Cosmology

Implications of Physical Cosmology

Millennium Simulation: Physical cosmology

All About - Physical cosmology

Dark Matter ; the Undetectable Mass

The Physical Universe in Buddhist Cosmology