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Todd Suomela

The Bohr paradox - physicsworld.com - 0 views

  • Why? The best explanation I have heard is advanced by the physicist John H Marburger, who is currently science advisor to US President George Bush. By 1930, Marburger points out, physicists had found a perfectly adequate way of representing classical concepts within the quantum framework using Hilbert (infinite-dimensional) space. Quantum systems, he says, “live” in Hilbert space, and the concepts of position and momentum, for instance, are associated with different sets of coordinate axes that do not line up with each other, thereby resulting in the situation captured in ordinary-language terms by complementarity.“It’s a clear, logical and consistent way of framing the complementarity issue,” Marburger explained to me. “It clarifies how quantum phenomena are represented in alternative classical ‘pictures’, and it fits in beautifully with the rest of physics. The clarity of this scheme removes much of the mysticism surrounding complementarity. What happened was like a gestalt-switch, from a struggle to view microscopic nature from a classical point of view to an acceptance of the Hilbert-space picture, from which classical concepts emerged naturally. Bohr brokered that transition.”
  • In his book Niels Bohr’s Times, the physicist Abraham Pais captures a paradox in his subject’s legacy by quoting three conflicting assessments. Pais cites Max Born, of the first generation of quantum physics, and Werner Heisenberg, of the second, as saying that Bohr had a greater influence on physics and physicists than any other scientist. Yet Pais also reports a distinguished younger colleague asking with puzzlement and scepticism “What did Bohr really do?”.
thinkahol *

Humanity Needs to Keep Pace with Technology (cont'd) | The Veracious Blog - 0 views

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    When we talk about participation, we have to be a bit more specific. On the publishing side, there's clearly more participation than we've ever seen in the past. But in order for this tidal wave of information to be useful, we need to be able to separate fact from fiction. We need to encourage participation on the receiving end. What we need is evaluating participation. With the breadth of niche information and sources we have the ability to get at the best of what is known on a myriad of topics and contexts. Every niche has its experts and its hacks, its enthusiasts and detractors. But for the remaining 95% of us who are not subject matter experts, deriving the accurate or useful information from the sea of what is available can be complicated, time-consuming and simply unverifiable. We need a way to quantify the value of information, or more specifically, the veracity of information.
thinkahol *

The Census Survey and the New York Times just ate my day » We Love DC - 0 views

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    It's hard not to get lost in a data projection like the NYT's Mapping America: Every City, Every Block, which allows you to parse through 20 or so different projections of the American Community Survey data over the last five years from the Census Bureau.  When you can see the geographic correlations of education levels and income (check out the dividing line at 16th street in both cases), it's a stark reminder of the different Washingtons that exist. Be sure also to check out DCist's initial take (focused on demography and increase/decrease) and GGW's initial take (focused on population shift between wards) This is a data goldmine, and the sort of thing that yours truly is absolutely in love with. Parse through this with us over the next couple weeks.
thinkahol *

New Scientist TV: Amputees regain control with bionic arm wired to chest - 0 views

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    Jesse Sullivan, the man in this video, is using one of the most high-tech prosthetic arms available. But what's truly impressive about it isn't visible to the eye: instead of using a motor, he's controlling the arm with his thoughts. After an amputation, the nerves in a stump remain healthy, at least for a while, and now scientists are making use of this fact to create highly dexterous, thought-controlled prosthetics.
thinkahol *

Future Intelligence | Watch Free Documentary Online - 0 views

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    Catch a first-time glimpse at smart technology that will put android helpers in the home, network commuters and entire cities to the Web, and bring us entertainment systems that can virtually make dreams come true. Advances in artificial intelligence are creating machines with near human-like mental agility. Intelligence will be embedded everywhere - even in our clothing, thanks to smaller, more powerful computers. Soon, we will be able to build computers with artificial intelligence and processing power that rivals the human brain. Intelligence will be everywhere, in our clothing, our vehicles and homes. Intelligent robots will serve us - until they don't feel like doing so anymore. And what happens then…?
samantha armstrong

FixComputerpProblemsSite Surely Knows How to Fix Computer Problems! - 1 views

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started by samantha armstrong on 03 Jun 11 no follow-up yet
sam neilson

FixComputerpProblemsSite Surely Knows How to Fix Computer Problems! - 1 views

I was having problems with my laptop before. Good thing FixComputerpProblemsSite helped me fix it. And they are really the experts when it comes to solving any computer related issues. They can eas...

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started by sam neilson on 11 May 11 no follow-up yet
thinkahol *

Paralyzed Man Stands, Aided by Electrodes - NYTimes.com - 0 views

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    A young man paralyzed by an injury to his spinal cord has regained the ability to stand for short periods, take steps with help and move his legs and feet at will, with the help of an electrical stimulator implanted in his lower back.
thinkahol *

3-D avatars could put you in two places at once | KurzweilAI - 0 views

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    Source: New York Times - Apr 11, 2011 In their new book, Infinite Reality, Dr. Jim Blascovich and Dr. Jerry Bailenson insist that 3-D conferences with avatars are nigh because consumer technology has suddenly caught up with the work going on in virtual-reality laboratories in academia. These psychologists point to three developments in the past year: the Microsoft Kinect tracking system for the Xbox, the Nintendo 3DS gaming device, and the triumph on "Jeopardy!" of IBM's Watson computer.
thinkahol *

Renewable Living In Megacities & Rachel Armstrong | Plus Ultra Technologies/30 steps - 0 views

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    Will future megacities grow themselves, heal themselves and be at peace with their surrounding environment instead of in conflict with it? Yes. But only if only we decide to do it.
thinkahol *

'World Wide Mind' - Total Connectedness, and Its Consequences - NYTimes.com - 0 views

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    Imagine, Michael Chorost proposes, that four police officers on a drug raid are connected mentally in a way that allows them to sense what their colleagues are seeing and feeling. Tony Vittorio, the captain, is in the center room of the three-room drug den. He can sense that his partner Wilson, in the room on his left, is not feeling danger or arousal and thus has encountered no one. But suddenly Vittorio feels a distant thump on his chest. Sarsen, in the room on the right, has been hit with something, possibly a bullet fired from a gun with a silencer. Vittorio glimpses a flickering image of a metallic barrel pointed at Sarsen, who is projecting overwhelming shock and alarm. By deducing how far Sarsen might have gone into the room and where the gunman is likely to be standing, Vittorio fires shots into the wall that will, at the very least, distract the gunman and allow Sarsen to shoot back. Sarsen is saved; the gunman is dead. That scene, from his new book, "World Wide Mind," is an example of what Mr. Chorost sees as "the coming integration of humanity, machines, and the Internet." The prediction is conceptually feasible, he tells us, something that technology does not yet permit but that breaks no known physical laws.
Adam Fleaming

Initiative Targets Big Data Workloads {Open Hybrid} - Compliance4all - 0 views

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    Hortonworks, IBM and Red Hat today announced they're banding together to build a consistent hybrid computing architecture for big data workloads. Dubbed the Open Hybrid Architecture Initiative, the program pledges simplicity of deployment and freedom of movement for data apps. The rapid ascent of cloud computing platforms like AWS, Azure, and Google Cloud has given enterprises abundant new options for storing data and deploying processing-intensive applications, such as deep learning and real-time stream processing. Throw in the progress being made at the edge, with sensors and speedy ARM chips collecting and processing massive amounts of data, and you have the makings of a computing revolution. While the computing possibilities in the cloud and on the edge may appear bountiful, the reality is that the underlying architectures for building apps that can span these three modes are just starting to come together. Enterprises today face a dearth of repeatable patterns to guide their developers, administrators, and architects, who are tasked with building, deploying and maintaining hybrid that span not just the cloud and the edge, but traditional on-prem data centers too. Hybrid computing architecture for big data workloads https://goo.gl/GQVXjs
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    Hybrid computing architecture for big data workloads https://goo.gl/GQVXjs
melvinahebert

Best Demat Account For Small Investors | TechQY - 0 views

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    Full-service brokers with extensive technical proficiency and support, such as Kotak Securities, is highly recommended for beginners. This is because of their expertise and years of guidance in the field of trading that can provide you with immense knowledge and customer service in your trading journey. Let us look into the parameters and factors to help you decide the best Demat account for your investment.
techinstro com

Description and Specification of Graphene - 0 views

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    Graphene is a single-atom-thick sheet made from combined carbon atoms. The carbon atoms are bonded together to share electron in a hexagonal, honeycomb-like structure. It is a single atom thick layered 2D material ever discovered in the world. It is made up of a hexagonal lattice pattern of carbon atoms in a monolithic honeycomb-like structure. It is a layer of SP2 single bonded carbon atoms arranged like a chicken wire mesh. It is 200 times stronger than stainless steel (SS) and 100 thousand times thinner than the human hair. It is the slimmest and strongest compound available on the earth. Anybody would be amazed when they know that we have found a material which is harder than diamond, yet lightweight, stronger than steel, but also highly flexible, and this material can be mined from the earth as it occurs naturally. It is yet thin enough to be mistaken for a saran wrap. Apart from the optimum physical properties, the other features are also impressive. Properties of Graphene These are some prominent features which make it a hi-tech material: Excellent Electronic Conductor Chief electronic property makes it an efficient Zero-Overlap Semi metal and gives it sufficient electrical conductivity. Carbon atoms possess typically 2 electrons in the inner shell, and 4 electrons in the outer orbit, total 6 electrons. Although conventionally, the outer 4 electrons in carbon can connect with another atom, each, the atoms can form a 2-dimensional bond with three atoms per single atom. This leaves an electron available for electronic conduction. Such electrons are known as 'Pi' electrons and found above and below in sheet. Ultimate Tensile Strength Mechanical strength is another prominent property of the material. It considered as being the foremost most robust material ever discovered, owing to the 0.142 Nm-long carbon bonds. It also possesses ultimate tensile strength, measuring 130 Gigapascals (or 130,000,000,000 Pascals). Compared to the tensile strength of industr
thinkahol *

YouTube - Controlling the Brain with Light (Karl Deisseroth, Stanford University) - 0 views

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    Free Download - StanfordUniversity - January 22, 2009 - Karl Deisseroth is pioneering bold new treatments for depression and other psychiatric diseases. By sending pulses of light into the brain, Deisseroth can control neural activity with remarkable precision. In this short talk, Deisseroth gives an thoughtful and awe-inspiring overview of his Stanford University lab's groundbreaking research in "optogenetics".
thinkahol *

Robots created that develop emotions in interaction with humans - 0 views

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    The first prototype robots capable of developing emotions as they interact with their human caregivers and expressing a whole range of emotions have been finalized by researchers.
thinkahol *

Studying child-mother interactions to design robots with social skills | KurzweilAI - 0 views

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    University of Miami (UM) developmental psychologists and computer scientists from the University of California in San Diego (UC San Diego) are studying infant-mother interactions and working to implement their findings in a baby robot capable of learning social skills. The objectives are to help unravel the mysteries of human cognitive development and reach new the frontiers in robotics.
Todd Suomela

Guest Post: Tom Levenson on Isaac Newton as the First Cosmologist | Cosmic Variance - 0 views

  • Newton knew what he had done. He was no accidental writer. A parabola, of course, is a curve that keeps on going – and that meant that at the end of a very long and very dense book, he lifted off again from the hard ground of daily reality and said, in effect, look: All this math and all these physical ideas govern everything we can see, out to and past the point where we can’t see anymore. Most important, he did so with implacable rigor, a demonstration that, he argued, should leave no room for dissent. He wrote “The theory that corresponds exactly to so nonuniform a motion through the greatest part of the heavens, and that observes the same laws as the theory of the planets and that agrees exactly with exact astronomical observations cannot fail to be true.” (Italics added).
  • To make his ambitions absolutely clear Newton used the same phrase for the title of book three. There his readers would discover “The System of the World.” This is where the literary structure of the work really comes into play, in my view. Through book three, Newton takes his audience through a carefully constructed tour of all the places within the grasp of his new physics. It begins with an analysis of the moons of Jupiter, demonstrating that inverse square relationships govern those motions. He went on, to show how the interaction between Jupiter and Saturn would pull each out of a perfect elliptical orbit; the real world, he says here, is messier than a geometer’s dream.
Todd Suomela

Hello, Darkness - 96.03 - 0 views

  • But the implication of electricity in the sleep deficit seems hard to argue with. Whatever it is that we wish or are made to do--pursue leisure, earn a living--there are simply far more usable hours now in which to do it
  • In the United States at midnight more than five million people are at work at full-time jobs. Supermarkets, gas stations, copy shops--many of these never close.
  • Living with electric lights makes it difficult to retrieve the experience of a non-electrified society. For all but the very wealthy, who could afford exorbitant arrays of expensive artificial lights, nightfall brought the works of daytime to a definitive end. Activities that need good light--where sharp tools are wielded or sharply defined boundaries maintained; purposeful activities designed to achieve specific goals; in short, that which we call work--all this subsided in the dim light of evening. Absent the press of work, people typically took themselves safely to home and were left with time in the evening for less urgent and more sensual matters: storytelling, sex, prayer, sleep, dreaming.
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  • John Staudenmaier, a historian of technology and a Jesuit priest, for a recent conference at MIT. (The essay will appear in a book called The Idea of Progress Revisited, edited by Leo Marx and Bruce Mazlish.) Staudenmaier makes the point--obvious when brought up, though we've mostly lost sight of it--that from the time of the hominid Lucy, in Hadar, Ethiopia, to the time of Thomas Edison, in West Orange, New Jersey, the onset of darkness sharply curtailed most kinds of activity for most of our ancestors.
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    Speculative connections between electric lighting, sleep deficits, and health.
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    I wonder if the driving force behind the sleep deficit is in fact more pervasive, and indeed global in nature: the triumph of light.
Todd Suomela

The Technium: The Unabomber Was Right - 0 views

  • Besides lacking a desirable alternative, the final problem with destroying civilization as we know it is that the alternative, such as it has been imagined by the self-described “haters of civilization”, would not support but a fraction of the people alive today. In other words, the collapse of civilization would kill billions. Ironically the poorest rural inhabitants would fare the best, as they could retreat to hunting gathering with the least hurdle, but billions of urbanites would die once food ran out and disease took over. The anarcho-primitives are rather sanguine about this catastrophe, arguing that accelerating the collapse early might save lives in total.
  • The ultimate problem is that the paradise the Kaczynski is offering, the solution to civilization so to speak, is the tiny, smoky, dingy, smelly wooden prison cell that absolutely nobody else wants to dwell in. It is a paradise billions are fleeing from. Civilization has its problems but in almost every way it is better than the Unabomber’s shack. The Unabomber is right that technology is a holistic, self-perpetuating machine. He is wrong to bomb it for many reasons, not the least is that the machine of civilization offers us more actual freedoms than the alternative. There is a cost to run this machine, a cost we are only beginning to reckon with, but so far the gains from this ever enlarging technium outweigh the alternative of no machine at all.
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