16 posts tagged with physics and cosmology.
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Sir Roger Penrose: Cosmic Inflation Is ‘Fantasy'

(NPR Science Friday) Sir Roger Penrose calls string theory a "fashion," quantum mechanics "faith," and cosmic inflation a "fantasy." ... What's wrong with modern physics—and could alternative theories explain our observations of the universe? Full lectures: Fashion, Faith, and Fantasy in the New Physics of the Universe (Lecture 1: FASHION)(Lecture 2: FAITH.)(Lecture 3: FANTASY.) [more inside]
posted by Golden Eternity on Apr 4, 2014 - 48 comments

direct realism

The Nature of Computation - Intellects Vast and Warm and Sympathetic: "I hand you a network or graph, and ask whether there is a path through the network that crosses each edge exactly once, returning to its starting point. (That is, I ask whether there is a 'Eulerian' cycle.) Then I hand you another network, and ask whether there is a path which visits each node exactly once. (That is, I ask whether there is a 'Hamiltonian' cycle.) How hard is it to answer me?" (via) [more inside]
posted by kliuless on Dec 1, 2012 - 19 comments

42

What Happened Before the Big Bang? The New Philosophy of Cosmology
posted by fearfulsymmetry on Jan 24, 2012 - 50 comments

SciGuy Eric Berger

One of my favorite blogs happens to be local to me. Eric Berger, the Houston Chronicle's "SciGuy" usually reports on the weather. But he also posts entertaining and serious stuff as well. [more inside]
posted by PapaLobo on Nov 22, 2011 - 3 comments

In and Out

"Zoom from the edge of the universe to the quantum foam of spacetime and learn the scale of things along the way!" [more inside]
posted by Potomac Avenue on Jun 27, 2011 - 28 comments

riverrun, past Eve and Adam's, from swerve of shore to bend of bay, brings us by a commodius vicus of recirculation back to Howth Castle and Environs.

to talk about the concept of "time" before the big bang; the Cyclic Universe Theory proposes an alternative to the predominant Inflation Theory that led to this intuition. Now Gurzadyan and Penrose have observed low-variance rings in the CMB, supporting the notion that it makes sense
posted by jjray on Nov 27, 2010 - 41 comments

Composition of the Universe

A fascinating talk about the composition of the universe [Youtube, approx 1 hour], presented by Sean Carroll, theoretical physicist at CIT. [via] [more inside]
posted by knave on Feb 11, 2009 - 29 comments

The Spherical Wave Structure of Matter in Space

On Truth and Reality. Despite several thousand years of failure to correctly understand physical reality (hence the current postmodern view that this is impossible) it is actually very simple to work out how matter exists and moves about in Space. The rules of Science (Occam's Razor / Simplicity) and Metaphysics (Dynamic Unity of Reality) require that reality be described from only one single source existing, as Leibniz wrote: "because of the interconnection of all things with one another." [more inside]
posted by netbros on Jan 30, 2009 - 46 comments

Star Stories and the Nobel Prize

Star Stories explains the life and death of stars using a multimedia approach that incorporates images, animation, video and text. From the official website of the Nobel Foundation. Don't miss out on the other cool games . [more inside]
posted by ozomatli on Sep 25, 2008 - 6 comments

Physics Cosmology Resources

A History of Scientific Cosmology from the American Institute of Physics has some great articles on the history of cosmology.
posted by RussHy on Jan 3, 2007 - 5 comments

Newtonian dynamics unmodified

Good evidence that dark matter is for real.
posted by kliuless on Aug 16, 2006 - 57 comments

maybe the Sarumpaet Rules will be worked out afterall

Before the Big Bang - way, way out of my depth, but I thought this comment was intriguing: "The paper as published, along with a longer follow up paper, looks to my untrained eye a nearly complete quantum gravitation theory, which is an exciting prospect in itself. However, as with all physical theories, we will await for experimental support before popping the cork." Here's some more on loop quantum gravity, spin networks, the big bang and ekpyrosis.
posted by kliuless on Apr 16, 2006 - 18 comments

The truth behind the first cheesy special effects

Misconceptions about the Big Bang
posted by Gyan on Feb 23, 2005 - 39 comments

(S/W)AP

Smolin vs. Susskind on the anthropic principle. For those keeping score: Stephen Hawking is for it. Brian Greene is not.
posted by kliuless on Sep 4, 2004 - 10 comments

Information Salvation

It would seem that black holes may not lose information after all, in which case Stephen Hawking has lost another bet.
posted by Songdog on Jul 16, 2004 - 24 comments

Dork Matter.

Dark matter flowchart.
posted by monju_bosatsu on Oct 31, 2003 - 11 comments

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