Follow us: Follow us on Facebook Follow us on Twitter Follow us on Google+ Follow us on Linkedin Follow us on Tumblr Subscribe to our RSS or Atom feed
Friday, August 1, 2014
Southern Weather Radar


Our Writers

  • Adam Peck
  • Alan Gordon
  • Alex Kearns
  • Alex Seitz-Wald
  • Alice Murray
  • Allison Korn
  • Alyssa Cagle
  • Amanda Marcotte
  • Amanda Peterson Beadle
  • Andrea Grimes
  • Andrea Lee Meyer
  • Andrew Bowen
  • Andy Brack
  • Andy Kopsa
  • Andy Miller
  • Andy Schmookler
  • Ann Marie Pace
  • Ann Woolner & Leonard Ray Teel
  • Anna Dolianitis
  • Anna Forbes and Kate Ryan
  • Annelise Thim
  • Anoni Muss
  • April Adams
  • April Moore
  • Ariel Harris
  • Armando
  • Arthur Blaustein
  • Austen Risolvato
  • Austin McMurria
  • Barry Hollander
  • Bert Roughton III
  • Beth Ostlund
  • Betsey Dahlberg
  • Bill Hamm
  • Bill Mankin
  • Bill Montgomery
  • Bill Moyers & Michael Winship
  • Bill Phillips
  • Bill Semple
  • Bill Tush
  • Billy Howard
  • Bob Bohanan
  • Bob Pritchard
  • Booth Malone
  • Bootsie Lucas
  • Boyd Lewis
  • Brad Clayton
  • Braden Goyette For ProPublica
  • Brett Martin
  • Brian Randall
  • Brianna Peterson
  • Bruce Dixon
  • Bruce E. Levine
  • Burton Cox
  • Candice Dyer
  • Carl Kline
  • Carol Carter
  • Casey Hayden
  • Cathleen Hulbert
  • Center for American Progress
  • Chantille Cook
  • Charles Finn
  • Charles O. Hendrix Jr.
  • Charles Seabrook
  • Charles Walston
  • Chelsea Toledo
  • Chelsey Willis
  • Chris Bowers
  • Chris Kromm
  • Chris Wohlwend
  • Christopher Burdette
  • Chrys B. Graham
  • Chuck Collins
  • Cliff Green
  • Cody Maxwell
  • Collin Kelley
  • Craig Miller
  • Crissinda Ponder
  • Dallas Lee
  • Dan Kennedy
  • Daniel Flynn
  • Daniel K. Williams
  • Daniel Palmer
  • Danny Fulks
  • Dante Atkins
  • Darby Britto
  • Dave Cooley
  • Dave Johnson
  • Dave Pruett
  • David Bradford
  • David Evans
  • David Harris-Gershon
  • David Jenks
  • David Kyler
  • David Rotenstein
  • David Swanson
  • Dean Baker
  • Deb Barshafsky
  • Debbie Houston
  • Deborah Chasteen
  • Denise Oliver Velez
  • Dennis McCarthy
  • Desiree Evans
  • Dian Cai
  • Diana Delatour
  • Dina Rasor
  • Dindy Yokel
  • Doc
  • Don Lively
  • Don O'Briant
  • Door Guy
  • Doug Couch
  • Doug Cumming
  • Dr. Brian Moench
  • Dr. Nick De Bonis
  • E. David Ferriman
  • Earl Fisher
  • Eden Landow
  • Eileen Dight
  • Eleanor Ringel Cater
  • Elizabeth Shugg
  • Ellen Brown
  • Elliott Brack
  • Erin Kotecki Vest
  • Fatima Najiy
  • FishOutofWater
  • Francisco Silva
  • Frank Povah
  • Fred Brown
  • Frederick Palmer
  • Gadi Dechter, Michael Ettlinger
  • Gail Kiracofe
  • Gaius
  • Georgia Logothetis
  • Gib Ennis
  • Gina Williams
  • Gita M. Smith
  • Glenn Overman
  • Gordon Anderson
  • Gregory C. Dixon
  • Gryphon Corpus
  • Hamp Skelton
  • Harriet Barr
  • Heather Boushey
  • Henry Dreyer
  • Hollis B. Ball III
  • Hugh
  • Hyde Post
  • Ian Kim
  • Ian Millhiser
  • Isabel Owen
  • Ivy Brashear
  • J.A. Myerson
  • Jack deJarnette
  • Jack Wilkinson
  • Jacklyn C. Citero
  • Jake Olzen
  • James Hataway
  • James Marc Leas
  • James N. Maples
  • Janet Ward
  • Jasmine Burnett
  • Jason Palmer
  • Jason Parker
  • Jay Thompson
  • Jeff Cochran
  • Jeff Davis
  • Jeff Rayno
  • Jeff Spross
  • Jennifer Hill
  • Jesse Harwell
  • Jessica Luton
  • Jim Bentley and Jeff Nesmith
  • Jim Clark
  • Jim Cobb
  • Jim Fitzgerald
  • Jim Newell
  • Jim Stovall
  • Jim Walls
  • Jim Warren
  • Jimmy Booth
  • Jing Luo
  • Jingle Davis
  • Joan Donovan
  • Jodi Jacobson
  • Jody Wegmueller
  • Joe Earle
  • Joe Shifalo
  • Joel Groover
  • Joey Ledford
  • John A. Tures
  • John Dembowski
  • John Hickman
  • John M. Williams
  • John Manasso
  • John Sugg
  • John Tabellione
  • John Yow
  • Jon Sinton
  • Jonathan Grant
  • Joni Hunnicutt
  • Jonna Pattillo
  • Joseph B. Atkins
  • Joseph Gatins
  • Josh Dorner
  • Josh Sewell
  • Joy Moses
  • Judith Stough
  • Judy McCarthy
  • Juli Ward
  • Julian Bond
  • Julianne Wyrick
  • Julie Ajinkya
  • Julie Puckett Fodera
  • Just Plain Will
  • Kaili Joy Gray
  • Kate Greer
  • Kate McNally
  • Kathleen Brewin Lewis
  • Kathleen Harbin
  • Kathleen R. Gegan
  • Kathryn Hoffman
  • KC Wildmoon
  • Keith Graham
  • Ken Edelstein
  • Ken Haldin
  • Kevin Austin
  • Kevin Duffy
  • Kip Burke
  • Kirk McAlpin
  • Kirsten Barr
  • Kos Moulitsas
  • Kristie Macrakis
  • Lacey Avery
  • Lamont Cranston
  • Laura Clawson
  • Laura Smith
  • Laurence Lewis
  • Lawrence S. Wittner
  • Lee Leslie
  • Lee Robin
  • Les Eatwell
  • LikeTheDew
  • Linda Hunt Beckman
  • Linda Jordan Tucker
  • Lisa Byerley Gary
  • Lisa Kerr
  • Lois Beckett, Propublica
  • Lorraine Berry
  • Louie Clay
  • Louis Mayeux
  • Lovell Jones, Ph.D.
  • Lucy Emerson Sullivan
  • Lucy Guest
  • Maggie Lee
  • Maisha White
  • Mandy Richburg Rivers
  • Margi Ness
  • Marian Wang, ProPublica
  • Marie Diamond
  • Mark Dohle
  • Mark Johnson
  • Mark Sumner
  • Martha W. Fagan
  • Mary Civille
  • Mary Elizabeth King
  • Mary Kay Andrews
  • Mary Lee
  • Mary Willis Cantrell
  • Matt Johnson
  • Matt Musick
  • Matt Renner
  • Matthew Wright
  • Maurice Carter
  • Meg Livergood Gerrish
  • Meghan Miller
  • Melanie Rochat
  • Melinda Ennis
  • Michael Beckel
  • Michael Castengera
  • Michael Ettlinger
  • Michael J. Solender
  • Michael Linden
  • Michael Lux
  • Michael W. Twitty
  • Mike Copeland
  • Mike Cox
  • Mike Handley
  • Mike Lofgren
  • Mike Ludwig
  • Mike Williams
  • Mike ”Hunter” Lazzaro
  • Mimi Skelton
  • Moni Basu
  • Monica Smith
  • Murray Browne
  • Myra Blackmon
  • Nancy Melton
  • Nancy Puckett
  • Nancy Robinson
  • Nancy Rogers
  • Neill Herring
  • Nelly McDaid
  • Nikki Gardner
  • Niles Reddick
  • Noel Holston
  • Occupy Wall Street
  • Overman & Senn
  • Pamela Sumners
  • Pat Garofalo
  • Pat LaMarche
  • Patrick L. Ledford
  • Patsy Dickey
  • Patti Ghezzi
  • Paul Krupin
  • Paul Rutledge
  • Paul Thim
  • Pete & Jack
  • Peter Crawford
  • Peter Turnbull
  • Phil Gast
  • Phil Noble
  • Philip Graitcer
  • Phyllis Alesia Perry
  • Phyllis Gilbert
  • Piney Woods Pete
  • R. P. Singletary
  • R.L. Miller
  • Rafael Alvarez
  • Randy Conway
  • Randy Schiltz
  • Ray Bearfield
  • Raymond L. Atkins
  • Reagan Walker
  • Rebecca Sive
  • Richard Eisel
  • Righton C. Willis
  • Rob Chambers
  • Rob Coppock
  • Rob Douthit
  • Robert Dardenne
  • Robert Jensen
  • Robert Lamb
  • Robert M. Williams, Jr.
  • Robert Mashburn
  • Robert Weiner & Richard Mann
  • Robin Marty
  • Rodney Adams
  • Roger Gregory
  • Ron Feinberg
  • Ron Taylor
  • Rose Aguilar
  • Rose Weaver
  • Rosemary Griggs
  • Russ Wellen
  • Sam Morton
  • Sao Magnifico
  • Sara Amis
  • Sarah Ayres
  • Sarah Bufkin
  • Saralyn Chesnut
  • Scott Anna
  • Scott Borchert
  • Scott Keyes
  • Scott Wooledge
  • Seth Cline
  • Shane Gilreath
  • Sharon M. Riley
  • Shay Dawkins
  • Sheffield Hale
  • Sheila Barnard Nungesser
  • Sigrid Sanders
  • SoniaTai
  • Sonya Collins
  • Soraya Chemaly
  • Spencer Lawton
  • Stephanie Taylor
  • Stephen Lacey
  • Steve King
  • Steve Krodman
  • Steve Valk
  • Stuart Liss
  • Sue Sturgis
  • Sujigu
  • Susan De Bonis
  • Susan Soper
  • Susan Wilson
  • Suz Korbel
  • Tammy Andrews
  • Tammy Ingram
  • Tanya Somanader
  • Ted Kooser
  • Terri Evans
  • The Barnacle Goose
  • Thomas A. Bledsoe
  • Tiger Liliuokalani
  • Tim Oliver
  • Timothy Freeman
  • Timothy Hurst
  • Tom Baxter
  • Tom Crawford
  • Tom Ferguson
  • Tom Millsop
  • Tom Poland
  • Tom Walker
  • Travis Waldron
  • Travis Waldron & Pat Garofalo
  • Trevor Stone Irvin
  • Tricia Collins
  • Troubadour
  • Valerie Evans
  • Viveca Novak
  • Waldron, Somanader & Garofalo
  • Walter Rhett
  • Wanda Argersinger
  • Wayne Countryman
  • Wayne Johnson
  • We The People
  • Will Cantrell
  • Will Nelson
  • William Cotter
  • William Hedgepeth
  • Yana Kunichoff
  • Yasmin Vafa
  • Zack Beauchamp
  • Zack Ford
  • Zaid Jilani
  • Zaina Budayr



  • Login or Subscribe

    Like the Dew?

    We are non-commercial, all volunteer and supported by our readers. Please help sustain the Dew by making a donation.

    Part 6

    Science’s Sacred Cows: Realism

    by | Mar 13, 2013

    Blackboard-with-physical-formulas“The universe is not only queerer than we suppose, it is queerer than we can suppose.” — J.B.S. Haldane

    In the previous post, we discussed a fiendishly clever gedanken experiment posed in 1935 by Einstein and co-workers and designed to expose presumed flaws in quantum mechanics (QM). When the so-called “EPR paradox” was finally tested experimentally in 1977 at Lawrence Berkeley Laboratory, the results were a resounding victory for QM, while ringing the death knell for Einstein’s cherished principle of local causes. The “EPR paradox” — and Bell’s Theorem, which ultimately led to its resolution — firmly established the notion of quantum entanglement. Further experiments over the past three decades have moved entanglement from the status of novelty into the mainstream of physics. Today we discuss further experiments involving entanglement that call into question another of science’s tacit assumptions: realism.

    Realism is the philosophical stance of most sane human beings, scientists included. Realism asserts: “All measurement outcomes depend on pre-existing properties of objects that are independent of the measurement.” In layman’s terms, there’s a real world out there independent of us (although we may see it differently because of variations in our measurement devices, i.e., our eyes and lenses). After all, if I ski down a slope and collide with a tree in my path, it makes little difference whether or not I believe the tree is real. Most persons — a few Zen philosophers excepted (“What sound does a falling tree make if no one hears?”) would assert that the tree has a reality all its own, independent of me. But in the microscopic world of the quantum, things are so very different than our macroscopic experiences would lead us to believe.

    Recall from the previous post that the paper by Einstein, Podolsky, and Rosen (hence the moniker “EPR”) involved two-particle (say two photon) systems in which twin particles are spatially separated by a vast distance. Certain implications of QM, fretted Einstein, suggested that measuring the polarization of one photon would instantaneously set the polarization of its twin, violating the principle of local causes.

    Let’s carefully parse Einstein’s words when he sprang the EPR trap to conclude that QM is incomplete.

    “One can escape from this conclusion [that quantum theory is incomplete] only by either assuming the measurement of [photon 1 telepathically] changes the real situation at [photon 2] or by denying independent real situations as such to things which are spatially separated from each other. Both alternatives appear to me entirely unacceptable.”

    By referring to “the real situation” and “independent real situations,” Einstein explicitly assumed physical realism. Furthermore, by assuming that spatially separated particles could not instantly “communicate,” he invoked the principle of local causes. Thus Einstein made two fundamental and independent assumptions: locality and realism.

    Because of the profound implications of entanglement, researchers around the world continue to propose and conduct experiments to further clarify the remarkable phenomenon. To summarize their collective results prior to 2007: experiments based upon Bell’s Theorem prove “that all hidden-variable theories based on the joint assumption of locality and realism [emphases added] are at variance with the predictions of quantum mechanics.” The logical conclusion from these results is that theories based on local realism fail to be consistent with the predictions of QM because at least one assumption fails. But which?

    In 2007, a group of researchers at premier institutions in Austria and Poland collaborated to perform yet another stunning EPR-like investigation. The experiment, by Simon Gröblacher and a host of coworkers, tested a new theorem by A. Leggett (2003) that further refines Bell’s theorem. Leggett’s theorem yields a mathematical inequality that, when combined with Bell’s inequality, permits the independent testing of Einstein’s two assumptions: locality and realism. The results of Gröblacher’s team, published in Nature (April 19, 2007), once again validated quantum mechanical predictions. That was to be expected. The unexpected occurred in identifying which assumption of local realism failed. Locality or realism? Surprisingly, both. The authors concluded:

    “Our result suggests that giving up the concept of locality is not sufficient to be consistent with quantum experiments, unless certain intuitive features of realism are [also] abandoned.”

    An independent reality, it now appears, has become the latest casualty of QM. The universe is nonlocal, nondeterministic, and apparently “unreal” as well. Haldane was right: the universe, at least at the quantum level, is “queerer” than we can imagine.

    This essay is extracted from Chapter 11 — “Through the Looking Glass” — of the author’s book Reason and Wonder and also appeared at HuffingtonPost.com.

    ###
    • Image: Licensed by LikeTheDew.com at 123RF.com
    Dave Pruett

    Dave Pruett

    Dave Pruett, a former NASA researcher, is an award-winning computational scientist and emeritus professor of mathematics at James Madison University (JMU) in Harrisonburg, VA. His alter ego, however, now out of the closet, is a writer. His first book, Reason and Wonder (Praeger, 2012), a "love letter to the cosmos," grew out of an acclaimed honors course at JMU that opens up "a vast world of mystery and discovery," to quote one enthralled student. For more information, visit reasonandwonder.org

     

    Print Friendly

     

    Note: Users are solely responsible for opinions they post here and for the agreed-upon rules of civility. Comments do not reflect the views of LikeTheDew.com. Comments are automatically checked for inappropriate language, but readers might find some comments offensive or inaccurate. If you believe a comment violates our rules, click here to report a violation.

  • Worthy of Comment



  • Also on the Dew

    The walls of an information ghetto

    The walls of an information ghetto

    By: John Hickman

    Listen to those defending Israeli violence against the Palestinians in Gaza and what you hear is denial. They cannot deny the facts and instead deny their emotional and moral significance. They agree that the Israeli military is bombarding Gaza and that thirteen hundred have been killed as a consequence. Rather than admit that the bombardment constitutes a humanitarian disaster and heinous war crime, however, they leap to the rhetorical devices of blaming the victim and condemning the condemner. Ignoring more than sixty years of state terror that began with the ethnic cleansing of Israel that left most Palestinians scattered across the  Read on →

    The Post Office as status symbol

    The Post Office as status symbol

    By: Monica Smith

    Who knew? We've got some snotty residents on St. Simons Island who collect their mail at the Sea Island Post Office so they can pretend they live where they don't. Now they've been discombobulated by the armed guards at the gates and collecting their mail has proved an inconvenience. Not to worry. The Sea Island Acquisitions people will just move the P. O. out of their exclusive enclave and give it a new home on St. Simons while they continue to pretend that the Sea Island Road is as exclusive as that cesspool on the dunes known as Sea Island.  Read on →

    When conservation engineers speak of brush and noxious weeds

    When conservation engineers speak of brush and noxious weeds

    By: Monica Smith

    You get a hint of the problem. Of course, the article I'm referencing was published way back in 2001. But, the mindset is telling. The author, who was employed by the Tennessee Wildlife Resources Agency, dismisses one kind of grass as a bank stabilizer because: Fescue tends to clump in our climate and wither in droughts. It fades in hot, dry weather, which lets weeds, brush and other noxious vegetation grow. Fescue is simply not a turf type grass. That is to say, natural vegetation is noxious and the problems unending: In the past, the vegetation on the newly completed dam has been  Read on →

    Emoters Beware

    Emoters Beware

    By: Mike Copeland

    Of my many faults, one of the most significant is a chronic inability to listen. Oh, I can and do listen in conversation long enough to respond, if not intelligently, at least in a way that demonstrates to both parties to the discussion that I am paying attention and offering argument or agreement that is, more or less, relevant. But, when it really isn't a conversation, when someone is venting or lamenting or just delivering of herself a good old fashioned bitchin', I am a terrible listener and always have been. I, invariably, try to solve the problem. I do this  Read on →