The revolutionary discovery that the expansion of the universe is speeding up, not slowing down from gravity, means that 75 percent of our universe consists of mysterious dark energy. Berkeley Lab theoretical physicist Eric Linder delves into the mystery of dark energy as part of the Science in the Theatre lecture series on Nov. 24, 2008.
Showing posts with label universe. Show all posts
Showing posts with label universe. Show all posts
7.6.11
Black Holes - Roger Blandford (SETI Talks)
Black holes are popularly associated with death and destruction (excluding romances dealing with the redemptive properties of wormholes). However, their conventional astrophysical role is now seen as regenerative and they play a major role in the formation and evolution of galaxies stars and, arguably, organic molecules. Some possible ways in which they may impact the research of the SETI Institute will be discussed and ways in which they may have played a role in the history of our solar system will be briefly discussed.
Universe - "... Life & Nothing, Dr Lawrence Krauss
Lawrence Maxwell Krauss (born May 27, 1954) is an American theoretical physicist who is professor of physics, Foundation Professor of the School of Earth and Space Exploration, and director of the Origins Project at the Arizona State University. He is the author of several bestselling books, including The Physics of Star Trek and Atom. He is also a well known advocate of skepticism, science education, and the science of morality.[1]
Universe - "...From Nothing' by Lawrence Krauss, 2009
Lawrence Krauss gives a talk on our current picture of the universe, how it will end, and how it could have come from nothing. Krauss is the author of many bestselling books on Physics and Cosmology, including "The Physics of Star Trek."
Lawrence Maxwell Krauss (born May 27, 1954) is an American theoretical physicist who is professor of physics, Foundation Professor of the School of Earth and Space Exploration, and director of the Origins Project at the Arizona State University. He is the author of several bestselling books, including The Physics of Star Trek and Atom. He is also a well known advocate of skepticism, science education, and the science of morality.[1]
Books by Lawrence Krauss:
Download Quicktime version
Lawrence Maxwell Krauss (born May 27, 1954) is an American theoretical physicist who is professor of physics, Foundation Professor of the School of Earth and Space Exploration, and director of the Origins Project at the Arizona State University. He is the author of several bestselling books, including The Physics of Star Trek and Atom. He is also a well known advocate of skepticism, science education, and the science of morality.[1]
Books by Lawrence Krauss:
http://www.amazon.com/Lawrence-M.-Krauss/e/B000AP7AZS/ref=ntt_dp_epwbk_0
Download Quicktime version
Small: http://c0116791.cdn.cloudfiles.rackspacecloud.com/Krauss-AAI09-web-sm-new.mov
720p HD: http://c0116791.cdn.cloudfiles.rackspacecloud.com/Krauss-AAI09-web-new.mov
Mysteries of the Dark Universe - 2009 Buhl Lecture
Edward W. Kolb (known to most as "Rocky") gave the 2009 Buhl Lecture, sponsored by the Carnegie Mellon Department of Physics. In his lecture "Mysteries of the Dark Universe", Kolb talks about how most of the universe is in a mysterious form called dark matter and most of the energy in the universe is in an even more mysterious form called dark energy. In the next decade, the combination of new astronomical facilities, powerful particle accelerators and sensitive laboratory experiments promises to unlock the secrets of dark matter and dark energy, connecting the inner-space of the quantum with the outer space of the cosmos.
Kolb is the Arthur Holly Compton distinguished Service Professor of Astronomy & Astrophysics. In addition to more than 200 scientific papers, he is a co-author of The Early Universe, the standard textbook on particle physics and cosmology. He is the chair of the Department of Astronomy & Astrophysics at the University of Chicago.
For more, visit: http://www.phys.cmu.edu/
Kolb is the Arthur Holly Compton distinguished Service Professor of Astronomy & Astrophysics. In addition to more than 200 scientific papers, he is a co-author of The Early Universe, the standard textbook on particle physics and cosmology. He is the chair of the Department of Astronomy & Astrophysics at the University of Chicago.
For more, visit: http://www.phys.cmu.edu/
Universe - Lectures 24 & 25
Physics 10: Physics for Future Presidents. Spring 2006. Professor Richard A. Muller.
"Before the Big Bang?" (2005), the original lecture by Roger Penrose (pa...
in 9 parts, "Before the Big Bang? A new perspective on the Weyl curvature hypothesis"
This is the original lecture by Roger Penrose on his fascinating new model of the universe, its origin and future, and of the "Big Bang"; held at the Isaac Newton Institute for Mathematical Sciences (November 7th 2005).
links to all 9 parts:
Originally published at http://www.newton.ac.uk/webseminars/pg+ws/2005/gmr/gmrw04/1107/penrose/index....
See also http://www.youtube.com/watch?v=ghbDGBOYp1g and http://www.perimeterinstitute.ca/index.php?option=com_content&task=view&a... for other lectures by Penrose on this theory.
See also http://www.youtube.com/watch?v=pEIj9zcLzp0 for an interview with Roger Penrose on his new model.
See also http://accelconf.web.cern.ch/AccelConf/e06/PAPERS/THESPA01.PDF for Penrose's academic article about his theory.
See also http://arxiv.org/pdf/0710.3879v2 for an article about Penrose's "Before the Big Bang" idea, verifying that some of Penrose's basic predictions are mathematically correct.
This is the original lecture by Roger Penrose on his fascinating new model of the universe, its origin and future, and of the "Big Bang"; held at the Isaac Newton Institute for Mathematical Sciences (November 7th 2005).
links to all 9 parts:
http://youtu.be/fJ-D5AUGVcI
http://youtu.be/inzgHjEVxAc
http://youtu.be/WD3BWt85bxA
http://youtu.be/YXDSCEX5wE8
http://youtu.be/YX30dxKdJkc
http://youtu.be/aNS_8WTYVuM
http://youtu.be/6mV6WnA52wQ
http://youtu.be/LXYLLG7VkoI
http://youtu.be/br1zHYH2hvA
Originally published at http://www.newton.ac.uk/webseminars/pg+ws/2005/gmr/gmrw04/1107/penrose/index....
See also http://www.youtube.com/watch?v=ghbDGBOYp1g and http://www.perimeterinstitute.ca/index.php?option=com_content&task=view&a... for other lectures by Penrose on this theory.
See also http://www.youtube.com/watch?v=pEIj9zcLzp0 for an interview with Roger Penrose on his new model.
See also http://accelconf.web.cern.ch/AccelConf/e06/PAPERS/THESPA01.PDF for Penrose's academic article about his theory.
See also http://arxiv.org/pdf/0710.3879v2 for an article about Penrose's "Before the Big Bang" idea, verifying that some of Penrose's basic predictions are mathematically correct.
SUMMARY:
There is now a great deal of evidence confirming the existence of a very hot and dense early stage of the universe. Much of this data comes from a detailed study of the cosmic microwave background (CMB)—radiation from the early universe that was most recently measured by NASA's WMAP satellite. But the information presents new puzzles for scientists. One of the most blatant examples is an apparent paradox related to the second law of thermodynamics. Although some have argued that the hypothesis of inflationary cosmology solves some of the puzzles, profound issues remain. In this talk, Professor Penrose will describe a very different proposal, one that suggests a succession of universes prior to our own.
Sir Roger Penrose is a highly distinguished mathematician and theoretical physicist. He is currently emeritus Rouse Ball Professor of Mathematics at Oxford University. His research interests span many aspects of geometry, having made contributions to the theory of non-periodic tilings (Penrose tilings), to general relativity theory and quantum foundations. He has also had remarkable insights in the science of consciousness. His main research programme is to develop the theory of twistors, which he originated over 30 years ago as an attempt to unite Einstein's theory of general relativity with quantum mechanics.
In 1994 Professor Penrose was knighted by Queen Elizabeth II for his service to science. He has received numerous prizes and awards, including the 1988 Wolf Prize, which he shared with Stephen Hawking for their understanding of the universe, the Dannie Heinemann Prize, the Royal Society Royal Medal, the Dirac Medal and the Albert Einstein prize to name a few.
Penrose is a prominent lecturer and author. His 1989 book The Emperor's New Mind became a best seller and won the 1990 (now Rhone-Poulenc) Science Book Prize. His latest books are Shadows of the Mind (1994), The Nature of Space and Time (1996) with Stephen Hawking, The Large, the Small and the Human Mind (1997) and Road to Reality (2004).
Universe - and Beyond, Michio Kaku
Professor Michio Kaku, Professor of Theoretical Physics and author of the best selling book "Physics of the Impossible"
Universe - Professor Richard A. Muller
Physics 10: Physics for Future Presidents. Spring 2006. Professor Richard A. Muller. Producer: Educational Technology Services
Part 1
Part 2
Part 1
Part 2
25.5.11
Richard Dawkin's Universe
Richard Dawkins: Growing up in the Universe| Video on TED.com
Richard Dawkins on our "queer" universe | Video on TED.com
Richard Dawkins on our "queer" universe | Video on TED.com
24.5.11
Carl Sagan - & the 4th dimension
used to watch Carl Sagan's "Cosmos" series on TV back in the 80's - ie:
more on Tesseracts and the 4th dimension here:
http://www.youtube.com/watch?v=cbprfcSVcyQ&feature=related
http://www.youtube.com/watch?v=9DoSqeJNG74&feature=related
http://www.youtube.com/watch?v=uDaKzQNlMFw&feature=related
http://www.youtube.com/watch?v=CtSNStVW81M&feature=related
and beyond:
http://www.youtube.com/watch?v=lFvUaFuv5Uw&NR=1
http://www.youtube.com/watch?v=XjsgoXvnStY&feature=related
http://www.youtube.com/watch?v=c8DwJKSn-bI&feature=related
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