Posts Tagged ‘Physics’

Is the Universe Fine Tuned for Life?

Monday, June 14th, 2010

In short, NO. Do we need to invoke an intelligent designer to explain why the natural forces are the way they are? NO. Science is still researching how the laws of physics are determined, but everything that we know today tells us its not the universe that is fine-tuned for life, but life, through evolution, that has fine-tuned itself for the universe.

Why do I spend time debunking these absurd creationist arguments? My goal is to produce a series of videos that attacks the problem of ignorance from two angles: 1) Tell people what science actually says, how science works, what we know and are still figuring out; 2) Tell people why each of the creationist arguments are wrong, thereby not ignoring their claims and seeming to hide from them. Also, its so easy, its fun.

Heres how the calculation was done. Total volume = volume of the Milkyway galaxy (radius = Milkyway to Andromeda galaxy / 2) so the volume = 6.88e66 cubic meters. The volume of the habitable space on earth (-2000m to +8000m) = 5e18 cubic meters. Assume 1e11 habitable worlds per volume like the Milkyway. Total habitable volume (5e29 cubic meters) per unit volume (6.88e66 cubic meters) gives 7.3e-38 universe is habitable.

To download this video copyright free please go to:
http://www.mediafire.com/file/o0aztmb3m1m/Is-the-universe-Fine-Tuned-for-Life.wmv

To download the papers featured in this video please go to:

http://www.mediafire.com/file/kmzkyyiguyd/Fine-Tuned-Universe-papers.zip

If you wish to translate the subtitles you can download them from:

http://www.mediafire.com/?twnwmktnyji

Then send me a link to them and I’ll add them to the video.

And remember to always, Think about it.

Duration : 0:8:40

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George Smoot: The design of the universe

Saturday, June 5th, 2010

http://www.ted.com At Serious Play 2008, astrophysicist George Smoot shows stunning new images from deep-space surveys, and prods us to ponder how the cosmos — with its giant webs of dark matter and mysterious gaping voids — got built this way.

Duration : 0:19:1

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They Might Be Giants – How Many Planets?

Saturday, June 5th, 2010

Created by ColourMovie. From TMBGs new CD/DVD set Here Comes Science. Available at iTunes and Amazon now! http://bit.ly/AmazonScience

Duration : 0:1:58

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Horizon: Is Everything We Know About the Universe Wrong? (Part 1 of 6)

Friday, April 30th, 2010

Horizon: Is Everything We Know About the Universe Wrong? (2010)

Part 1: http://www.youtube.com/watch?v=ge6RjTgyLr0
Part 2: http://www.youtube.com/watch?v=Ij5q8WVyNVI
Part 3: http://www.youtube.com/watch?v=KPDd3Umv06c
Part 4: http://www.youtube.com/watch?v=KF-N4_zfGJI
Part 5: http://www.youtube.com/watch?v=2ElbuzKrTkk
Part 6: http://www.youtube.com/watch?v=X4rv9BqTWzI

Runtime: 00:58:56

There’s something very odd going on in space, something that shouldn’t be possible. It is as though vast swathes of the universe are being hoovered up by a gigantic and invisible celestial vacuum cleaner.

Sasha Kaslinsky, the scientist who discovered the phenomenon, is understandably nervous: ‘It left us quite unsettled and jittery,’ he says, ‘because this is not something we planned to find.’ The accidental discovery of what is ominously being called ‘dark flow’ not only has implications for the destinies of large numbers of galaxies but threatens to overturn our current understanding of the birth and evolution of the universe.

Does dark flow herald a new era of cosmological understanding, or does it simply mean that everything we know about the universe is wrong?

Another brilliant documentary from the BBC’s ‘Horizon’ series.

Duration : 0:9:56

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Brian Greene: The universe on a string

Wednesday, March 3rd, 2010

http://www.ted.com n clear, nontechnical language, string theorist Brian Greene explains how our understanding of the universe has evolved from Einstein’s notions of gravity and space-time to superstring theory, where minuscule strands of energy vibrating in 11 dimensions create every particle and force in the universe. (This mind-bending theory may soon be put to the test at the Large Hadron Collider in Geneva.)

Duration : 0:19:7

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‘A Universe From Nothing’ by Lawrence Krauss, AAI 2009

Friday, February 26th, 2010

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.”

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

Filmed & Edited by
JOSH TIMONEN

The Richard Dawkins Foundation for Reason and Science

http://richarddawkinsfoundation.org

Atheist Alliance International
http://atheistalliance.org

Duration : 1:4:52

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The Elegant Universe – Einstein’s Relativity

Saturday, February 20th, 2010

Einstein’s General Theory of Relativity explained.

Duration : 0:7:26

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What Hubble Taught Us About The Planets

Sunday, February 14th, 2010

Hubblecast 27: What Hubble Taught Us About The Planets.

For nineteen years, NASA/ESA’s Hubble Space Telescope has made some of the most dramatic discoveries in the history of astronomy but it has also helped scientists learn more about our own Solar System. From its vantage point 600 km above the Earth, Hubble has studied every planet in our Solar System except Mercury where light from the Sun would damage its instruments.


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Hubble has captured the impact of a comet on Jupiter, immense storms on Neptune and even tiny dwarf planets at the edge of our Solar System. The veteran telescope keeps a watchful eye on our solar backyard.

Regarded by many as the most valuable astronomical tool, the Hubble Space Telescope is approaching its 19th anniversary in space. Hubble sees into the far reaches of the universe but its powerful instruments have also surveyed our planetary neighbours. In this episode, well see what Hubble has revealed to us in our own solar backyard.

Even those who, for some strange reason, arent astronomy enthusiasts are likely to recognise some of Hubbles most famous images, like the “Pillars of Creation”in the Eagle Nebula or the Hubble Deep, and Ultra Deep, Fields which have shown us some of the most distant galaxies ever observed. The Hubble space Telescope has really fundamentally changed our understanding of the Universe at large, but with its high resolution images of planets and moons in our own Solar System, it has also taught us a lot about our own cosmic neighbourhood.

Hubble cannot observe our Sun, or the closest planet, Mercury, because its instruments are light-sensitive and would be damaged. However, the telescope has examined every other planet in the solar system, including dwarf planets Pluto, Ceres and Eris. But, of course, Hubble does not just produce pretty pictures, it provides planetary scientists with vital information about our neighbours that may help us better understand our own home planet, Earth.

More (PDF): http://www.spacetelescope.org/videos/scripts/hubblecast27a.pdf

Credits:
• ESA/Hubble (Martin Kornmesser, Colleen Sharkey & Lars Lindberg Christensen)
• Visual design & Editing: Martin Kornmesser
• Animations: Martin Kornmesser
• Host: Dr. J
• Narration: Robert Fosbury
• Cinematography: Peter Rixner
• Music: movetwo
• Web Hosting: Leibniz-Rechenzentrum (LRZ)
• Web Technical Support: Lars Holm Nielsen & Raquel Yumi Shida
• Written by: Lars Lindberg Christensen
• Directed by: Colleen Sharkey
• Additional photos and footage: United States Air Force photo by Senior Airman Joshua Strang, NASA-JPL/ESA, NASA/JHU/APL,

Dr. J is a German astronomer at the ESO. His scientific interests are in cosmology, particularly on galaxy evolution and quasars. Dr. J’s real name is Joe Liske and he has a PhD in astronomy.

Hubble European Space Agency Information Centre
Garching/Munich, Germany
• http://www.eso.org
• http://www.spacetelescope.org
• http://hubblesite.org
.

Duration : 0:6:44

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Origin of the Universe – Stephen Hawking (1 of 5)

Thursday, January 28th, 2010

Playlist: http://www.youtube.com/watch?v=nFjwXe-pXvM&feature=PlayList&p=74184384669CEADB&index=0&playnext=1

Stephen Hawking gives a lecture on the Hawking-Hartle no boundary universe.

Lecture given to a sold out crowd at the Berkeley on March 13 2007.

http://www.pbs.org/wnet/hawking/universes/html/bound.html

Duration : 0:10:2

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