"Scientific American staff editor George Musser joins podcast host Steve Mirsky to discuss his article in the September issue about the possibility of time itself coming to an end"
- Spaceweaver
from Bookmarklet
"After nearly 6 months of smashing particles, the Large Hadron Collider has seen signs of something entirely new. Pairs of charged particles produced when two beams of protons collide seem to be associated with each other even after they fly apart. “It is a small effect, but it is very interesting in itself,” said physicist Guido Tonelli, spokesperson for the LHC’s CMS experiment. Tonelli and colleagues announced the results in a seminar at CERN September 21 and in a paper submitted to the Journal of High Energy Physics."
- Spaceweaver
from Bookmarklet
I've made my comments in red. Some are more about taste than accuracy though. Toward the end of the text you make statements that suggest (at least to me) that an animal's actions remain unpredictable even with COMPLETE knowledge its genes and environment. I have a slight problem with this, because we don’t yet know whether the nonlinear amplification process (and whatever seed it uses)...
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- Christopher Harris
(tried to publish this on your blog but I keep getting 'access denied')
- Christopher Harris
This is weird, others are commenting. Thanks for your edits, they are very helpful (and reminded me of some other Aplysia work that I desperately need to cite but forgot!). Thanks so much! Do you have the exact error message?
- Björn Brembs
Wow - this is great that the journal's copyright policy allows this type of pre-print "Royal Society Publishing allow authors to retain copyright. Instead, authors need to provide us with a licence to publish."
- Jean-Claude Bradley
Glad you checked this - I just posted it, hoping it would be ok :-)
- Björn Brembs
i get the same error : acess denied . when trying to post a commnet. hence posting it here:
- Sandeep Gautam
1. are you familiar with donald T campbell's blind variation and selective retention theory of creative thought. It is very similar to the two phase theory of 'creative/unpredictable' behavior that relies on a spontaneous variation first step followed by determination of app. criterion fit (selection); in my view you need to elaborate on the two phase evolutionary theory of free will...
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- Sandeep Gautam
This 'access denied' is new. Don't know what's going on, I suspect a recent security update I installed.
- Björn Brembs
@Sandeep: because the focus of the article is on invertebrate data, I'll have to refrain from going too deep into the philosophical aspects, but I'll look the things up that you mentioned and will see how much I can incorporate.
- Björn Brembs
Ok, I know what the problem with 'access denied' is. Am working on solving it.
- Björn Brembs
Bjorn - if I understand your point this is basically the application of chaos theory to neurobiology? If so maybe add an appropriate ref
- Jean-Claude Bradley
That's part of it, yes. I've been thinking to add a reference, but the mathematics guy behind our analysis (George Sugihara) didn't really like the terminology and preferred 'nonlinearity', so I guess he must have a reason (we didn't have enough time to discuss (i.e., him explaining it to me :-) this thoroughly.
- Björn Brembs
Well, there are various mathematical definitions of "chaos" and personally I would be wary of using the term unless I had a particular dynamical system and a particular definition in mind. However, replacing it with the word "nonlinear" is, to my mind, even worse because there are many nonlinear dynamical systems that behave in a perfectly predictable way. It all depends on the precise...
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- Matt Leifer
I'll comment on the "Rejection of Determinism" section, since quantum mechanics is my area. Firstly, I don't see what the uncertainty principle has to do with Hawking radiation. It is not used in the derivation as far as I am aware, although some (sloppy) physicists might use it as a heuristic justification. It also seems pretty far away from anything of relevance to the paper. Is it,...
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- Matt Leifer
I forgot to say that I do like the main argument of the paper. It seems to be as close to an account of "free will" as it is possible to get within a materialist worldview and is similar in spirit to Daniel Dennett's treatment of consciousness.
- Matt Leifer
Those are great comments, Matt, and most of them will make it into the paper, I'm sure. Thanks in particular for the Buckyball paper, I was looking for it but couldn't remember enough of it to find it! WRT Hawking radiation, in his book (or where did I read that?) I remember him telling us that near black hole s(at the event horizon?), some parameters (field strengths? english?) would...
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- Björn Brembs
It will be interesting to see what the reviewers say with respect to terminology - I think the specific concept is the butterfly effect - part of chaos theory but not necessarily involving attractors and other components of CT http://en.wikipedia.org/wiki...
- Jean-Claude Bradley
I'm not sure what to make of that explanation for Hawking radiation, but then it is difficult to give an accurate explanation for it at the popular level. Physicists often use the uncertainty principle as a heuristic guide for what the quantum physics of a given scenario will look like, often using it in a way that is not strictly valid. The rigorous version of the argument usually does...
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- Matt Leifer
@JC: yes, "sensitive dependence on initial conditions" would be the butterfly effect. There is too little known about the mechanisms, however, to be all that specific. The article, to some extent, tries to draw attention to what we don't know, yet. I probably should be emphasizing this more. It sort of gets lost in my attempt to get people to acknowledge that this is a valid neurobiological research field at all.
- Björn Brembs
@Matt: I had to derive the uncertainty principle for my high-school graduation exam and Heisenberg's youngest son was my thesis advisor. That's my background from which I'm working.
- Björn Brembs
I'll use the remaining week to get all these wonderful comments in and I hope there will be more! The paper is already much improved from what has come in so far! Thank you so much, keep it coming!
- Björn Brembs
I think the "Rejection of determinism" section has to be done away with and re-written. The examples, I agree with Matt, are not really pertinent. For example, Hawking radiation, it is a semi-classical result, and some physicist don't think it is even real, though they are in the minority. I wouldn't mention it at all. I think you can say that most physicists agree that QM destroyed...
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- Andrew Lang
OK, the discussion has veered too much in QM direction (to my discomfort as I'm not much at ease there) and I thought the focus should have been more neurobiological:-) I see that you dont reference Libet or the more recent experiments showing how conscious sense of volition may indeed be an illusion or at least follows non-conscious volition; I believe where you talk about difference...
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- Sandeep Gautam
Good point, Sandeep, that section would indeed be well suited for a Libet reference! Thank you!
- Björn Brembs
RE: the fullerene paper - I was not aware of it and don't have time to look into their claims in any detail. It is always possible that there is an alternative model that predicts the same results. One would have to look carefully to check whether their proposed model contradicts anything else we know about the quantum mechanics of fullerenes. In any case, experiments are being planned...
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- Matt Leifer
The abstract for the fullerene experiment "re-analysis" is dripping with what I would normally regard as kook signifiers. I don't recognize the author names, so it's possible there's some reason to treat them seriously, but I would be highly skeptical of anything with an abstract like that.
- Chad Orzel
@Matt: I heard about the planned experiments just yesterday (in a podcast). I know I don't 'need' the argument and would do away with the section of I run out of space. If I have the space, I'd like to state that 'Laplaceian' determinism is just as dead as dualism.
- Björn Brembs
Rachel just left 13 of her fields fallow and has reached level 5. Click here to pass legislation to protect her way of life.
- Stephen Mack
from iPhone
Michael L. has just expanded his empty farm from 8 square barren miles to 16 square barren miles! Click here to send him more nothing.
- Stephen Mack
from iPhone
A sad-eyed lost cow has wandered onto the empty acres of Georgia's farm. But don't you dare adopt it because adding dairy income would violate the terms of your subsidy. Click here to enjoy a fine hamburger.
- Stephen Mack
Someone should read Betty McDonald's book "The Egg and I" to see how farming should really be done. lol
- Melanie Reed
LoL, when are FriendFeed gonna invent the "Love it" button? Sometimes "like" just doesn't cut it for me and this is one of those times.
- JSLeFanu
Thank you, JSLeFanu, and thank you Michael and April for sharing. :)
- Stephen Mack
[Fields 91% idle] Eivind, thanks! Here's 162 coins for doin' nothin'! The big ole crop is still too much for one farmer to ignore though... think you could rustle up some more non-helpers? I'll give you half the harvest for every farmhand you fire. Best hurry -- just 8 hours till it... till it... actually, there's no hurry.
- Stephen Mack
Heh, thanks. I was built for not farming :)
- Eivind
It's good non-work if you can not get it.
- Stephen Mack
lol Stephen good play on the old song. the sad point though is that the idea (subsidy for farmers facing hard times) started out as a good and necessary one but has become almost useless through stipulation.
- Melanie Reed
Agree its very serious business. Especially when you look at the Economic pie chart of the US GDP and you consider the ever-threatening issue of food shortages and famine around the world. When society changed from largely sustainable and semi-sustainable family farms to the majority allowing big business to hire them, farming communities which relied heavily on the support of each...
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- Melanie Reed
Let's say for example, A certain big business corporation managed farm, thinks it will make more money selling wheat from Egypt than it will from the US farm, so its going to pay off that US farm NOT to produce wheat when it could and we could store that grain for future use. That trade equation is a huge part of the problem
- Melanie Reed
Davis, I'd like to not pay you to design more along those lines....
- Stephen Mack
Nearly 24 hours after I posted, it hit top 5 on my version of the "best of day" list, I'm very happy. Thanks everyone for the likes, comments, shares and tweets. #1 on the list is Tina's post about getting a job, which shows FF has its priorities straight. <3 to all.
- Stephen Mack
What a load of crap: http://www.scientificblogging.com/science... how many things can one get wrong about Open Access, Impact Factors, peer-review and PLoS in a single blog post!
i'm pretty sure this whole thing - the guy too - was cooked up in one of those "science generators" that you find on the web. you know the ones i'm talking about; you press a button and it spits out a bunch of random buzzwords without real meaning.
- Marie
"Open access publishing of science results, freely available to all, would clearly kill peer-reviewed journals. " Oh right, sounds a lot like journalists vs blogger. What does access have to do with peer review?
- Kubke
Regarding the trademark: http://tess2.uspto.gov/bin... registered to ION Publications LLC, the same outfit that publishes scientificblogging.com. From the about page (http://www.scientificblogging.com/about_s...): ""Scientific Blogging"®, "Science 2.0"® and "The world's best scientists, the Internet's smartest readers"® are registered trademarks of ION Publications LLC." BWAHAHAHAHAHHAHAHAAHAHAAHAA!!!
- Bill Hooker
Oh lord, the hits just keep coming: http://www.scientificblogging.com/science...... "These are 7 Science 2.0 'pioneers' but none of them seem to know what Science 2.0 is. [...] My next article will be laying it out once and for all..." If the site worked properly I could go straight to that "next article" but I'm having trouble finding it...
- Bill Hooker
What does "Affiliate" mean? In this context, or in any blog context? "I support"?
- Bora Zivkovic
What ??? They copyrighted / registered "Science 2.0" as a trademark ???
- Khader Shameer
I know. It's silly. It was used before and after, by people who never heard of scienitificblogging, who developed it, defined it, and ran with it. I have no idea what fool issued that kind of copyright for a word that is in general use.
- Bora Zivkovic
He seems to think that he only needs to put out cease and decist letters for commercial interests. If he only fights for his trademark in /some/ cases, then he can lose his supposed trademark.
- Just Joe
from iPod
I will trademark some words, too, then. How about "mother". I bet nobody thought to copyright it, so I will be the first.
- Bora Zivkovic
It would be fun to trademark "Trademark 2.0" ;-)
- Lars Juhl Jensen
IANAL but not so weird - Web 2.0 is trademarked by O'Reilly, for example. The trademark is over the whole phrase in certain contexts. Ditto this one. Still seems stupid that USPTO granted it without doing a simple check for common usage first though...
- Euan
@Euan, "stupid" is the USPTO's operating mission as far as I can tell. They consistenly allow both trademarks and patents that are blatantly unsustainable and will drop at the first challenge by way of prior art/common usage.
- Bill Hooker
Web 2.0 is trademarked by CMP Media, not O'Reilly. But because it was not protected it is, as Tim Berners-Lee called it, a "piece of jargon" used and misused. Hopefully Science 2.0 won't go the same route. Scienceblogs, PLoS and FriendFeed are also registered trademarks.
- Science 2.0
I simply do not get the point of the blog article. Besides, I am not sure if Nature or Elsevier would agree with any of the statements without the 'bigger picture' and context they are after. I joined their session @ESOF http://picasaweb.google.com/joergku... (pretty proud of the photos and being their live) and if not done already,...
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- joergkurtwegner
"Man-made DNA has booted up a cell for the first time. In a feat that is the culmination of two and a half years of tests and adjustments, researchers at the J. Craig Venter Institute inserted artificial genetic material — chemically printed, synthesized and assembled — into cells that were then able to grow naturally. “We all had a very good feeling that it was going to work this time,” said Venter Institute synthetic biologist Daniel Gibson, co-author of the study published May 20 in Science. “But we were cautiously optimistic because we had so many letdowns following the previous experiments.” On a Friday in March, scientists inserted over 1 million base pairs of synthetic DNA into Mycoplasma capricolum cells before leaving for the weekend. When they returned on Monday, their cells had bloomed into colonies."
- Spaceweaver
from Bookmarklet
Another great steps towards engineering life from scratch. This will eventually have an impact a thousand fold greater than the industrial revolution.
- Spaceweaver
"...yet the Chinese government has been crystal clear throughout our discussions that self-censorship is a non-negotiable legal requirement."
- Alexander Kruel
they'll get blocked, but I really can't tell which way it's gonna go from there. can google do without the Chinese market in the long run?
- Christopher Harris
I'm really interested to hear about the reasoning underlying the Chinese stance. And on a side note, they announced that they would cancel all .cn domains hold by private non-Chinese individuals. So far mine does still work: http://xixidu.cn
- Alexander Kruel
I think the question is if China can do without Google. It will seriously hurt their scientific research and general economy...
- Alexander Kruel
Since, by blocking Google, they do not limit free speech but deprive themselves of free hearing.
- Alexander Kruel
I'm not so sure. as I understand it, the Chinese government simply wants to be able to shape public opinion to maintain one-party rule and promote growth. therefore I don't think their censorship will extend to things like science, making it hard to see what the real loss is. maybe if google said 'all or nothing' and disabled all their services in china you'd see a real loss on the...
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- Christopher Harris
Google search includes now my "social circle" https://www.google.com/account... Here I searched for "science" and it shows some of my Twitter peers. For other queries it showed FriendFeed peers. I think now it is time making sure you have filled in your Google profile http://www.google.com/profiles
it is actually useful. It is interesting how google is crawling the networks. For example Google found my citeulike content via Frindfeed. Google has never been good at building social networks or social applications but it this looks interesting.
- Pedro Beltrao
Yeah, I had this turned on as an experimental search for a while. Great to see it emerge, as it only validates my investment in my social circle.
- Mr. Gunn
So, how do I get results from my social network to show up then?
- Egon Willighagen
@Egon: the way I did it was to do a regular web search, and then click on the "show options" plus sign. "Social" is option on the left, part way down.
- Steve Koch
Mmm... in All Results? I only see Blogs, Forums, Video, and a few more, but no Social .. :(
- Egon Willighagen
Hmm, I only get "doesn't match any documents"...
- Björn Brembs
I do not get it. Is there a browser dependency, I could not find the function back within IExplorer, but it works fine on my Mac (aka Safari)?
- joergkurtwegner
@Steve... yeah, that's what I thought, and looked around at various settings places, but did not find any hint on where to push the right button to get it going :(
- Egon Willighagen
Some nice theoretical exobiology :). Jokes aside, it's interesting to apply biological ideas from real systems to these models to see how they hold up. Iddo should write this post up as a letter to Nature. Half seriously.
- Andrew Perry
@Andrew... your faith is touching but I doubt this holds any interest beyond low-orbital blogosphere...
- Iddo Friedberg
Hey, I liked that post! Who you callin' low-orbital?!
- Bill Hooker
"It’s known as the golden hour. After a bullet wound or other massive trauma, soldiers in the field have about one hour to get intense medical attention. After that time, the chances of survival drop drastically. The research arm of US armed forces, DARPA, has long been interested in extending that golden window of opportunity to five or six hours, enough time to medevac someone from a remote location to a hospital. Earlier in December, DARPA announced that the Texas A&M Institute for Preclinical Studies (TIPS) would be receiving $9.9 million in funding to determine if previously successful suspended animation programs for rodents could work with pigs. According to Wired, the 15 person team lead by Dr. Matthew Miller hopes to have positive results in just 18 months. That sort of quick paced research could soon pave the way to preserve trauma victims the world over as they make their way to help."
- Alexander Kruel
from Bookmarklet
"A newly-discovered planet orbiting a small, nearby star appears to be a "water world," with a surface that might be covered with liquid water. "This is certainly the first planet around another star which we think is mostly made of water," says David Charbonneau of the Harvard-Smithsonian Center for Astrophysics in Cambridge, Mass., who led the research team that found the new planet, named GJ 1214b."
- Alexander Kruel
from Bookmarklet
"A pair of German physicists claim to have broken the speed of light - an achievement that would undermine our entire understanding of space and time. According to Einstein's special theory of relativity, it would require an infinite amount of energy to propel an object at more than 186,000 miles per second. However, Dr Gunter Nimtz and Dr Alfons Stahlhofen, of the University of Koblenz, say they may have breached a key tenet of that theory. The pair say they have conducted an experiment in which microwave photons - energetic packets of light - travelled "instantaneously" between a pair of prisms that had been moved up to 3ft apart. Being able to travel faster than the speed of light would lead to a wide variety of bizarre consequences. For instance, an astronaut moving faster than it would theoretically arrive at a destination before leaving. The scientists were investigating a phenomenon called quantum tunnelling, which allows sub-atomic particles to break apparently unbreakable...
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- Spaceweaver
from Bookmarklet
daah???? Anybody has more information on that?
- Spaceweaver
"Or so says Australian psychologist, Joe Forgas, who seems to think a case of the “grumps” can, in fact, make us think more clearly. The University of New South Wales researcher says grumpy people, rather than happy types, are better at coping with demanding situations because of the way the brain “promotes information processing strategies.” ... Professor Forgas said: ‘Whereas positive mood seems to promote creativity, flexibility, co-operation and reliance on mental shortcuts, negative moods trigger more attentive, careful thinking, paying greater attention to the external world.’"
- Jamreilly
from Bookmarklet
"..Man was made for joy and woe; And when this we rightly know Through the world we safely go. Joy and woe are woven fine, A clothing for the soul divine. Under every grief and pine Runs a joy with silken twine..." Auguries of Innocence by William Blake
- alapinto
"Routine commercial travel to outer space may be the norm as soon as 2012, as the next generation of spacecraft — designed by private sector firms like Virgin Galactic, Orbital Sciences Corp., Space Exploration Technologies Corp. and others — transport adventure-seeking civilians into low-Earth orbit."
- LANjackal
from Bookmarklet
"Coffee contains caffeine, and as everyone knows, caffeine is a stimulant. We all know how a good cup of coffee wakes you up, makes you more alert, and helps you concentrate - thanks to caffeine. Or does it? Are the benefits of coffee really due to the caffeine, or are there placebo effects at work? Numerous experiments have tried to answer this question, but a paper published today goes into more detail than most.."
- Jamreilly