Becoming an astrophysicist
September 22, 2011 by Actaphysica
Filed under Physics Videos
Phil Evans from the University of Leicester talks about why he became an astrophysicist and why he loves the job. This is some “extra interview footage” from a film we made about a day in the life of astrophysicists. See the original video at www.youtube.com
In this Howard Hughes Medical Institute program, Dr. Neil deGrasse Tyson, host of the PBS program NOVA scienceNOW and director of the Hayden Planetarium at the American Museum of Natural History, sits down with Dr. Thomas Cech, president of the Howard Hughes Medical Institute, to discuss his own illuminating experiences as a graduate student, and how he became interested in science. Tyson also discusses his outreach success in making science accessible to the general public.
Video Rating: 4 / 5
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Dark Matter Dark Energy & the Unknown Universe
September 20, 2011 by Actaphysica
Filed under Physics Videos
JournalofCosmology.com Dark Matter Dark Energy & the Unknown Universe, by Rhawn Joseph, Ph.D.
In this National Science Foundation program, Sean Carroll, a senior research associate at the California Institute of Technology, sheds light into the “dark side” of the universe that may actually be the key to unlocking the mystery that is the universe. The type of matter we’re familiar with and encounter everyday – atoms and molecules – only makes up about 5 percent of the universe. The remaining 95 percent is believed to be dark matter and dark energy. Explore the history of dark energy and dark matter by following Einstein’s path to uncovering the theory that sparked a change in the world of astrophysics and the controversies behind that theory.
Video Rating: 4 / 5
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Dark Matter, Dark Energy and Inflation: The Big Mysteries of Cosmology
September 19, 2011 by Actaphysica
Filed under Physics Videos
Dr. Michael S. Turner, Professor, Kavli Institute for Cosmological Physics, University of Chicago. Presented Feb. 15, 2011 Our current cosmological model describes the evolution of the universe from a very early burst of accelerated expansion (known as inflation) a tiny fraction of a second after the beginning, through the assembly of galaxies and large-scale structure shaped by dark matter, to our present epoch where dark energy controls the ultimate fate of the universe. As successful as it is, this model rests upon three mysterious pillars: inflation, dark energy and particle dark matter. All three point to exciting and important new physics that have yet to be revealed and understood — or possibly, to a fatal flaw in the paradigm. The University of Arizona College of Science’s Cosmic Origins lecture series is the story of the universe but it’s also our story. Hear about origin of space and time, mass and energy, the atoms in our bodies, the compact objects where matter can end up, and the planets and moons where life may flourish. Modern cosmology includes insights and triumphs, but mysteries remain. Join the six speakers who will explore cosmology’s historical and cultural backdrop to explain the discoveries that speak of our cosmic origins. cos.arizona.edu
Video Rating: 5 / 5
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The Dark Matter & Dark Energy [1/5]
September 14, 2011 by Actaphysica
Filed under Physics Videos
Dark matter are invisible objects that react with matter by gravitational force. Scientists believe that the dark matter is made up of exotic particles like WIMPs(Weakly Interacting Massive Particles).In physical cosmology, dark energy is an exotic form of energy that permeates all of space and tends to increase the rate of expansion of the universe.Dark energy is the most popular way to explain recent observations that the universe appears to be expanding at an accelerating rate. In the standard model of cosmology, dark energy currently accounts for 73% of the total mass-energy of the universe.
Video Rating: 4 / 5
World-renowned astronomer and prize-winning professor of astronomy at the University of California, Berkeley, Alex Filippenko, explores some of the mysteries of the universe at a special lecture at the Santa Barbara Museum of Natural History. Filippenko discusses observations of very distant exploding starts called super-novae that provide intriguing evidence that the expansion of the universe is now speeding up. Over the largest scales of space, the universe seems to be dominated by a repulsive “dark energy” of unknown origin, stretching the very fabric of space itself faster and faster with time. Series: “Voices” [1/2008] [Science] [Show ID: 13184]
Video Rating: 4 / 5
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BBC News – Astronomy Photographer of the Year 2011 – 10.09.2011, 08_32.mp4
September 13, 2011 by Actaphysica
Filed under Physics Videos
Take a look at some of the winning photos with two of the judges from the Royal Observatory Greenwich, public astronomer Marek Kukula and astronomy programmes manager Olivia Johnson. The judges’ choice of the best images can be seen in a free exhibition at the Royal Observatory Greenwich, London, until February 2012. Astronomy Photographer of the Year is run by the Royal Observatory Greenwich and Sky at Night Magazine. All images subject to copyright. Music courtesy KPM Music. Slideshow production by Paul Kerley. Publication date 9 September 2011. This is a screen capture image of live public free viewing from the bbc world news website from an external site not owned by the bbc. dated 9-10-2011 at 8:30 am EDT. The main thing to notice, is this is offered free, on the BBC website, which has the following caption: The BBC is not responsible for the content of external websites. This is public domain as the images are available for free to anyone to see for more info please go to this link I am posting this only to increase site traffic and publicity to the Greenwich Royal Observatory, and to all like me whom love and have a passion for space, science, art, and photography. I keep this site ad free to share the love of science, not make a dollar off like some sites do, so please visit the royal observatory as well as other cool space sits like www.nasa.gov, space.com, spaceflightnow.com, esa, and so on. www.nmm.ac.uk
Video Rating: 5 / 5
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The LHC – The Large Hadron Collider ( LHC )
September 11, 2011 by Actaphysica
Filed under Physics Videos
The Large Hadron Collider is the largest and most complex scientific instrument ever built and the highest energy particle accelerator in the world. The accelerator is located 100 m underground and runs through both French and Swiss territory. ( 27km circumference) Year 2008 September 10th, marks the culmination of 20 years of work by over 8000 scientists thousands of engineers, technicians and support staff from over 80 different countries. some critics say that this could create a black hole and suck up the entire world. but many say that even if a black hole is created it will vanish within a millionth of a second.. Latest : they have successfully done the 1st testing on the 10th September 2008, sending 2 beams separately clockwise and anticlockwise, which had successfully gone all the way around the ring. but there had been some minor errors, which we dont have to worry about. ***due to a helium leak, the LHC wont be re-started till 2009. for more info follow these links. (i think the best footage/documentary from the LHC) www.youtube.com lhc-first-beam.web.cern.ch www.youtube.com www.youtube.com au.news.yahoo.com this video is done by Chris Mann, (the link: lhc-first-beam.web.cern.ch ) CERN- European organization for nuclear research /lhc first beam. Hope this video must have been useful. Please subscribe, leave a comment or rate, i would love to see your feedback! Thanks
Video Rating: 4 / 5
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The Largest Black Holes in the Universe
September 10, 2011 by Actaphysica
Filed under Physics Videos
How big can they get? What’s the largest so far detected? Where does an 18 billion solar mass black hole hide? We’ve never seen them directly… yet we know they are there… Lurking within dense star clusters… Or wandering the dust lanes of the galaxy…. Where they prey on stars… Or swallow planets whole. Our Milky Way may harbor millions of these black holes… the ultra dense remnants of dead stars. But now, in the universe far beyond our galaxy, there’s evidence of something even more ominous… A breed of black holes that have reached incomprehensible size and destructive power. It has taken a new era in astronomy to find them… High-tech instruments in space tuned to sense high-energy forms of light — x-rays and gamma rays — that are invisible to our eyes. New precision telescopes equipped with technologies that allow them to cancel out the blurring effects of the atmosphere… and see to the far reaches of the universe. Peering into distant galaxies, astronomers are now finding evidence that space and time can be shattered by eruptions so vast they boggle the mind. We are just beginning to understand the impact these outbursts have had on the universe around us. That understanding recently took a leap forward. A team operating at the Subaru Observatory atop Hawaii’s Mauna Kea volcano looked out to one of the deepest reaches of the universe… And captured a beam of light that had taken nearly 13 billion years to reach us. It was a messenger from a time not …
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TEDxCaltech – Leonard Susskind – Richard Feynman
September 9, 2011 by Actaphysica
Filed under Physics Videos
Leonard Susskind is the Felix Bloch Professor of Physics at Stanford University. His research interests include string theory, quantum field theory, quantum statistical mechanics, and quantum cosmology. He is a member of the National Academy of Sciences and the American Academy of Arts and Sciences and, since 2009, has been serving as Director of the Stanford Institute for Theoretical Physics. About TEDx, x = independently organized event: In the spirit of ideas worth spreading, TEDx is a program of local, self-organized events that bring people together to share a TED-like experience. At a TEDx event, TEDTalks video and live speakers combine to spark deep discussion and connection in a small group. These local, self-organized events are branded TEDx, where x = independently organized TED event. The TED Conference provides general guidance for the TEDx program, but individual TEDx events are self-organized. (Subject to certain rules and regulations.) On January 14, 2011, Caltech hosted TEDxCaltech, an exciting one-day event to honor Richard Feynman, Nobel Laureate, Caltech physics professor, iconoclast, visionary, and all-around “curious character.” Visit TEDxCaltech.com for more details.
Video Rating: 4 / 5
Dr Brian Cox and Leonard Susskind talk about String Theory
Video Rating: 4 / 5
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Michio Kaku, Contact Learning from Outer Space , GCF 2011 – 01-23.f4v
September 8, 2011 by Actaphysica
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Michio Kaku, Contact Learning from Outer Space , GCF 2011 – 01-23.f4v
YouTube – Michio Kaku On Aliens On Physics
Video Rating: 4 / 5
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Massive Diamond Planet Orbits Neutron Star, Astronomers Find
September 7, 2011 by Actaphysica
Filed under Physics Videos
Using the giant Parkes Radio Telescope in New South Wales, Australia, astrophysicists have found an incredibly dense planet comprised of crystalized carbon — the stuff of diamonds — in orbit about a pulsar.
I just love the close-ups of Buck’s hands during the guitar solo! Enjoy!
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