'A Universe From Nothing' by Lawrence Krauss 2009

The Theory of Anything etc

Richard  Dawkins    Cosmology    Physics    Astronomy    Quantum  Physics    String  Theory    General  Relativity    Cosmic  Background  Ra 

Channels: Major questions in astronomy 

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The Future of Consciousness

An address delivered at an Institute of General Semantics symposium at the American Museum of Natural History in New York City, April 23, 2005

  communications    language    media    general    semantics    consciousness    Lance    Strate     

Channels: The Astronomers  Major questions in astronomy  Cosmic Debris  Ordono Mundi  Our Enterprise 

Added: 766 days ago by starnamer

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Lec 1 | MIT 5.111 Principles of Chemical Science, Fall 2008

Lecture 1: The importance of chemical principles License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu

introductory  chemistry  atomic  structure  molecular  electronic  thermodynamics  acid-base  equillibrium  titration  redox  chemical  kinetics  catalysis  lewis  structures  VSEPR  theory  wave-particle  duality  biochemistry  orbitals  periodic  trends  general  valence  bond  hybridization  free  energy  reaction  mechanism  Rutherford  backscattering 

Channels: Lectures In Astronomy 

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Lec 4 | MIT 5.111 Principles of Chemical Science, Fall 2008

Lecture 4: Wave-particle duality of matter, Schrödinger equation License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu

introductory  chemistry  atomic  structure  molecular  electronic  thermodynamics  acid-base  equillibrium  titration  redox  chemical  kinetics  catalysis  lewis  structures  VSEPR  theory  wave-particle  duality  biochemistry  orbitals  periodic  trends  general  valence  bond  hybridization  free  energy  reaction  mechanism  Rutherford  backscattering 

Channels: Lectures In Astronomy 

Added: 822 days ago by deek

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Lec 3 | MIT 5.111 Principles of Chemical Science, Fall 2008

Lecture 3: Wave-particle duality of light License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu

introductory  chemistry  atomic  structure  molecular  electronic  thermodynamics  acid-base  equillibrium  titration  redox  chemical  kinetics  catalysis  lewis  structures  VSEPR  theory  wave-particle  duality  biochemistry  orbitals  periodic  trends  general  valence  bond  hybridization  free  energy  reaction  mechanism  Rutherford  backscattering 

Channels: Lectures In Astronomy 

Added: 822 days ago by deek

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Lec 2 | MIT 5.111 Principles of Chemical Science, Fall 2008

Lecture 2: Discovery of electron and nucleus, need for quantum mechanics License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu

introductory  chemistry  atomic  structure  molecular  electronic  thermodynamics  acid-base  equillibrium  titration  redox  chemical  kinetics  catalysis  lewis  structures  VSEPR  theory  wave-particle  duality  biochemistry  orbitals  periodic  trends  general  valence  bond  hybridization  free  energy  reaction  mechanism  Rutherford  backscattering 

Channels: Lectures In Astronomy 

Added: 822 days ago by deek

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Lec 10 | MIT 5.111 Principles of Chemical Science, Fall 2008

Lecture 10: Periodic trends continued; Covalent bonds License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu

introductory  chemistry  atomic  structure  molecular  electronic  thermodynamics  acid-base  equillibrium  titration  redox  chemical  kinetics  catalysis  lewis  structures  VSEPR  theory  wave-particle  duality  biochemistry  orbitals  periodic  trends  general  valence  bond  hybridization  free  energy  reaction  mechanism  Rutherford  backscattering 

Channels: Lectures In Astronomy 

Added: 822 days ago by deek

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Lec 12 | MIT 5.111 Principles of Chemical Science, Fall 2008

Lecture 12: Exceptions to Lewis structure rules; Ionic bonds License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu

introductory  chemistry  atomic  structure  molecular  electronic  thermodynamics  acid-base  equillibrium  titration  redox  chemical  kinetics  catalysis  lewis  structures  VSEPR  theory  wave-particle  duality  biochemistry  orbitals  periodic  trends  general  valence  bond  hybridization  free  energy  reaction  mechanism  Rutherford  backscattering 

Channels: Lectures In Astronomy 

Added: 822 days ago by deek

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Lec 9 | MIT 5.111 Principles of Chemical Science, Fall 2008

Lecture 9: Periodic trends License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu

introductory  chemistry  atomic  structure  molecular  electronic  thermodynamics  acid-base  equillibrium  titration  redox  chemical  kinetics  catalysis  lewis  structures  VSEPR  theory  wave-particle  duality  biochemistry  orbitals  periodic  trends  general  valence  bond  hybridization  free  energy  reaction  mechanism  Rutherford  backscattering 

Channels: Lectures In Astronomy 

Added: 822 days ago by deek

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Lec 14 | MIT 5.111 Principles of Chemical Science, Fall 2008

Lecture 14: Molecular orbital theory License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu

introductory  chemistry  atomic  structure  molecular  electronic  thermodynamics  acid-base  equillibrium  titration  redox  chemical  kinetics  catalysis  lewis  structures  VSEPR  theory  wave-particle  duality  biochemistry  orbitals  periodic  trends  general  valence  bond  hybridization  free  energy  reaction  mechanism  Rutherford  backscattering 

Channels: Lectures In Astronomy 

Added: 822 days ago by deek

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Lec 5 | MIT 5.111 Principles of Chemical Science, Fall 2008

Lecture 5: Hydrogen atom energy levels License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu

introductory  chemistry  atomic  structure  molecular  electronic  thermodynamics  acid-base  equillibrium  titration  redox  chemical  kinetics  catalysis  lewis  structures  VSEPR  theory  wave-particle  duality  biochemistry  orbitals  periodic  trends  general  valence  bond  hybridization  free  energy  reaction  mechanism  Rutherford  backscattering 

Channels: Lectures In Astronomy 

Added: 822 days ago by deek

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Towards a Spin Foam Model of Quantum Gravity

NOTE: pdf link for transparencies- http://math.ucr.edu/home/baez/loops05/loops05.pdf Probably not everyones cup of tea. A clip from a lecture by John Baez in conjunction with the LOOPS 'O5 series by the Max Planck Institute of Gravitation (Albert Einstein Institute) regarding a proposal for quantum gravity (the clip appears to start at page 14 of the transparencies). Date- 11th Oct 05. Source- http://math.ucr.edu/home/baez/loops05/ LOOPS '05- http://loops05.aei.mpg.de/ 'Spin foam models include several different classes of physical theories: lattice gauge theories, dynamical triangulation models of quantum gravity, "chain mail" quantum field theories, and topological string theories. Is there a spin foam model of quantum gravity in 4 dimensions? To address this question, we review recent work on causal dynamical triangulations and the renormalization group. This suggests that quantum gravity is a well-defined theory with the curious property that spacetime is effectively 4-dimensional at large distance scales, but 2-dimensional at very short distance scales. This is just what one might expect from a spin foam model, since spacetime is fundamentally 2-dimensional in these theories. We discuss properties a spin foam model should have in order to approximate general relativity at large distance scales.'

quantum  gravity  general  relativity  grand  unified  theory  of  everything  GUT  TOE  john  baez 

Channels: Major questions in astronomy 

Added: 823 days ago by deek

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