68 posts tagged with science by kliuless.
Displaying 1 through 50 of 68.

Famous Fluid Equations Are Incomplete

The Singular Mind of Terry Tao - "Imagine, he said, that someone awfully clever could construct a machine out of pure water. It would be built not of rods and gears but from a pattern of interacting currents." (via) [more inside]
posted by kliuless on Jul 29, 2015 - 17 comments

After Capitalism, Humanism

Shared Prosperity, Common Wealth, National Equity and a Citizen's Dividend: Nirit Peled takes a look at social experiments in basic incomes for VPRO Tegenlicht, a Dutch public television documentary series. Starting with a German crowdfunded UBI chosen by raffle -- kind of like the opposite of Le Guin's Omelas (or Shirley Jackson's Lottery in reverse) -- the focus moves on to Albert Wenger who wants to disconnect work from income not only as automation progresses but to accelerate the process. Then it's on to Guy Standing who has conducted basic income experiments in India and Namibia (pdf) and is trying to get one off the ground in Groningen (Utrecht apparently is also a go). Finally, a stop in Alaska to ask some of its residents about their views on the state-owned Permanent Fund. This last part brings to mind the question: just what is wealth anyway? [more inside]
posted by kliuless on Jul 2, 2015 - 7 comments

Miles Kimball: Secular Humanism and Universalist Unitarianism

Teleotheism and the Purpose of Life - "Please give this sermon a try. I think it has much in it that will be of interest to a wide range of readers: philosophy, cosmology, evolutionary theory, and science fiction, as well as theology. And nothing in it depends on believing in God at all." Abstract: As an enlightened form of atheism, I turn to teleotheism. Teleotheism is the view that God comes at the end, not at the beginning, where I am defining “God” as “the greatest of all things that can come true.” In this view, the quest to discover what are the greatest things that are possible is of the utmost importance. The best of our religious heritage is just such an effort to discover the greatest things that are possible. (via; previously)
posted by kliuless on Jun 7, 2015 - 33 comments

The free development of each is the condition of the war against all

Some Paths to the True Knowledge[*] - "Attention conservation notice: A 5000+ word attempt to provide real ancestors and support for an imaginary ideology I don't actually accept, drawing on fields in which I am in no way an expert. Contains long quotations from even-longer-dead writers, reckless extrapolation from arcane scientific theories, and an unwarranted tone of patiently explaining harsh, basic truths. Altogether, academic in one of the worst senses. Also, spoilers for several of MacLeod's novels, notably but not just The Cassini Division. Written for, and cross-posted to, Crooked Timber's seminar on MacLeod, where I will not be reading the comments."
posted by kliuless on May 19, 2015 - 12 comments

A Beautiful Question: Finding Nature's Deep Design

Frank Wilczek: Physics in 100 Years [pdf] - "Here I indulge in wide-ranging speculations on the shape of physics, and technology closely related to physics, over the next one hundred years. Themes include the many faces of unification, the re-imagining of quantum theory, and new forms of engineering on small, intermediate, and large scales." [more inside]
posted by kliuless on Apr 19, 2015 - 11 comments

Charging toward an era of genetically modified humans

The CRISPR Revolution [ungated: 1,2,3] - "Biologists continue to hone their tools for deleting, replacing or otherwise editing DNA and a strategy called CRISPR has quickly become one of the most popular ways to do genome engineering. Utilizing a modified bacterial protein and a RNA that guides it to a specific DNA sequence, the CRISPR system provides unprecedented control over genes in many species, including perhaps humans. This control has allowed many new types of experiments, but also raised questions about what CRISPR can enable." [more inside]
posted by kliuless on Apr 16, 2015 - 28 comments

Embodied Cognition

The Deep Mind of Demis Hassabis - "The big thing is what we call transfer learning. You've mastered one domain of things, how do you abstract that into something that's almost like a library of knowledge that you can now usefully apply in a new domain? That's the key to general knowledge. At the moment, we are good at processing perceptual information and then picking an action based on that. But when it goes to the next level, the concept level, nobody has been able to do that." (previously: 1,2) [more inside]
posted by kliuless on Jan 19, 2015 - 9 comments

Additive-noise methods

How to tell correlation from causation - "The basic intuition behind the method demonstrated by Prof. Joris Mooij of the University of Amsterdam and his co-authors is surprisingly simple: if one event influences another, then the random noise in the causing event will be reflected in the affected event."
posted by kliuless on Jan 12, 2015 - 25 comments

The Secret History Of Thoughts

Locked-In Man - "Martin Pistorius spent more than a decade unable to move or communicate, fearing he would be alone, trapped, forever. NPR's new show Invisibilia tells how his mind helped him create a new life."
posted by kliuless on Jan 11, 2015 - 21 comments

In geologic terms it's imminent. In biologic, maybe within a lifetime.

Earth's Magnetic Field May Be About to Flip [summary] - "Earth's last magnetic reversal took place 786,000 years ago and happened very quickly, in less than 100 years -- roughly a human lifetime. The rapid flip, much faster than the thousands of years most geologists thought, comes as new measurements show the planet's magnetic field is weakening 10 times faster than normal and could drop to zero in a few thousand years." (via)
posted by kliuless on Dec 20, 2014 - 35 comments

hyperconnected: your brain on shrooms

How Tripping On Mushrooms Changes The Brain - "New research [pdf] suggests that psilocybin, the main psychoactive ingredient in magic mushrooms, sprouts new links across previously disconnected brain regions, temporarily altering the brain's entire organizational framework." [more inside]
posted by kliuless on Nov 28, 2014 - 84 comments

The observer at the end of time: Of immortal watchers and imaginary data

In a Multiverse, What Are the Odds? "Testing the multiverse hypothesis requires measuring whether our universe is statistically typical among the infinite variety of universes. But infinity does a number on statistics." (previously) [more inside]
posted by kliuless on Nov 9, 2014 - 47 comments

Calculus without limits

Hyperreal numbers: infinities and infinitesimals - "In 1976, Jerome Keisler, a student of the famous logician Tarski, published this elementary textbook that teaches calculus using hyperreal numbers. Now it's free, with a Creative Commons copyright!" (pdf—25mb :) [more inside]
posted by kliuless on Sep 17, 2014 - 34 comments

Springtime on Saturn

Storm Chasing on Saturn with Cassini [viz. cf.] - "The sun is slowly rising over Saturn's north pole, exposing an immense six-sided hurricane. The storm, big enough to swallow four Earths, was first spotted by the Voyager missions in the early 1980s. [Cassini] will be passing directly over the north pole with its cameras pointing down later this month." (previously 1,2)
posted by kliuless on Aug 10, 2014 - 9 comments

21st Century Wiener

Norbert Wiener: The Eccentric Genius Whose Time May Have Finally Come (Again) - "The most direct reason for Wiener's fall to relative obscurity was the breakthrough of a young mathematician and engineer named Claude Shannon." [more inside]
posted by kliuless on Jul 11, 2014 - 12 comments

Utility, welfare, and efficiency

  1. Welfare economics: an introduction
  2. The perils of Potential Pareto
  3. Inequality, production, and technology
  4. Welfare theorems, distribution priority, and market clearing
  5. Normative is performative, not positive

posted by kliuless on Jul 7, 2014 - 7 comments

Risky Business

The Economic Risks of Climate Change in the United States (PDF); prospectus (PDF); press coverage (YT) - "The signature effects of human-induced climate change—rising seas, increased damage from storm surge, more frequent bouts of extreme heat—all have specific, measurable impacts on our nation's current assets and ongoing economic activity. [The report] uses a standard risk-assessment approach to determine the range of potential consequences for each region of the U.S.—as well as for selected sectors of the economy—if we continue on our current path..." [more inside]
posted by kliuless on Jun 24, 2014 - 34 comments

The Machine

HP scaling memristor and photonic computing: "the device is essentially remembering 1s or 0s depending on which state it is in, multiplying its storage capacity. HP can build these chips with traditional semiconductor equipment and expects to be able to pack unprecedented amounts of memory—enough to store huge databases of pictures, files, and data—into a computer. In theory, that would remove the need for a conventional slow disk/fast memory system. With the Machine's main chips sitting on motherboards right next to the memristors, they can access any needed information almost instantly..." [more inside]
posted by kliuless on Jun 16, 2014 - 66 comments

The Moral Question Of Our Time: Can We Share The Planet?

UN Climate Report: We Must Focus On 'Decarbonization', and It Won't Wreck the Economy - "The basic message is simple: We share a planet. Let's start acting like it." [more inside]
posted by kliuless on Apr 23, 2014 - 50 comments

A SAT Attack on the Erdos Discrepancy Conjecture

Computers are providing solutions to math problems that we can't check - "A computer has solved the longstanding Erdős discrepancy problem! Trouble is, we have no idea what it's talking about — because the solution, which is as long as all of Wikipedia's pages combined, is far too voluminous for us puny humans to confirm." (via; previously ;)
posted by kliuless on Apr 12, 2014 - 24 comments

Researchers Use Stem Cells to Regenerate Muscle Nearly as Strong

Scientists Progress in Quest to Grow Muscle Tissue in Labs - "The researchers are now working on optimizing the growth of human muscle tissue, including finding a way to get blood flow to the tissue, the best source of cells and the best growing medium for the cells."
posted by kliuless on Apr 8, 2014 - 5 comments

Make Everything Awesome For Everybody: Bridging The CP Snow-Style Divide

The Two Cultures and the Scientific Revolution - "[Charles Percy Snow] was pleading for a more adequately educated ruling class so that the suffering of the poor might be ameliorated... Snow wanted to believe something like this: political decisions in the modern world often concern how to deploy science and technology, so people well-trained in science and technology will be better prepared to make those decisions. But that's a syllogism without a minor premise." (previously) [more inside]
posted by kliuless on Mar 15, 2014 - 37 comments

there is no soundtrack

Finite time blowup for an averaged three-dimensional Navier-Stokes equation - "[Terence Tao] has shown that in an alternative abstract universe closely related to the one described by the Navier-Stokes equations, it is possible for a body of fluid to form a sort of computer, which can build a self-replicating fluid robot that, like the Cat in the Hat, keeps transferring its energy to smaller and smaller copies of itself until the fluid 'blows up.' " [1,2,3] (previously)
posted by kliuless on Mar 9, 2014 - 15 comments

plant sex in silico

Monsanto Is Going Organic in a Quest for the Perfect Veggie - "The lettuce, peppers, and broccoli—plus a melon and an onion, with a watermelon soon to follow—aren't genetically modified at all. Monsanto created all these veggies using good old-fashioned crossbreeding, the same technology that farmers have been using to optimize crops for millennia. That doesn't mean they are low tech, exactly. Stark's division is drawing on Monsanto's accumulated scientific know-how to create vegetables that have all the advantages of genetically modified organisms without any of the Frankenfoods ick factor." [more inside]
posted by kliuless on Mar 8, 2014 - 52 comments

John Baez on the maths of connecting everyone (and everything) on earth

Network Theory Overview - "The idea: nature and the world of human technology are full of networks! People like to draw diagrams of networks. Mathematical physicists know that in principle these diagrams can be understood using category theory. But why should physicists have all the fun? This is the century of understanding living systems and adapting to life on a finite planet. Math isn't the main thing we need, but it's got to be part of the solution... so one thing we should do is develop a unified and powerful theory of networks." (via ;)
posted by kliuless on Mar 2, 2014 - 17 comments

binding the andat

Closing in on the twin prime conjecture (Quanta) - "Just months after Zhang announced his result, Maynard has presented an independent proof that pushes the gap down to 600. A new Polymath project is in the planning stages, to try to combine the collaboration's techniques with Maynard's approach to push this bound even lower." [more inside]
posted by kliuless on Dec 1, 2013 - 16 comments

Game behind gamed: your narrative programming for the day

How The Economic Machine Works by Ray Dalio[1] actually makes a case against austerity[2] and for redistribution, but also for money printing (and, arguably, for bailouts), while stressing the need to keep making productivity-improving public and private investments. However, it could be equally entitled: How The Industrial Age Political-Economy Doesn't Work Anymore, viz. Surviving Progress (2011)... [more inside]
posted by kliuless on Sep 25, 2013 - 28 comments

conservation of information

A Black Hole Mystery Wrapped in a Firewall Paradox - "A paradox around matter leaking from black holes puts into question various scientific axioms: Either information can be lost; Einstein's principle of equivalence is wrong; or quantum field theory needs fixing." [more inside]
posted by kliuless on Aug 18, 2013 - 36 comments

Mouse cloned from drop of blood

Scientists in Japan have cloned a mouse from a single drop of blood. (via)
posted by kliuless on Jun 30, 2013 - 33 comments

belters expanse trajectory: working up the Epstein Drive

How NASA brought the monstrous F-1 "moon rocket" engine back to life - "The story of young engineers who resurrected an engine nearly twice their age." [more inside]
posted by kliuless on Apr 14, 2013 - 34 comments

Intelligence Tests

Is Psychometric g a Myth? - "As an online discussion about IQ or general intelligence grows longer, the probability of someone linking to statistician Cosma Shalizi's essay g, a Statistical Myth approaches 1. Usually the link is accompanied by an assertion to the effect that Shalizi offers a definitive refutation of the concept of general mental ability, or psychometric g." [more inside]
posted by kliuless on Apr 11, 2013 - 113 comments

sea & sky

seaQuest: what if we could learn to live on/underneath the oceans (or in orbit)? [previously(er)] [more inside]
posted by kliuless on Mar 18, 2013 - 14 comments

Computerized Math, Formal Proofs and Alternative Logic

Using computer systems for doing mathematical proofs - "With the proliferation of computer-assisted proofs that are all but impossible to check by hand, Hales thinks computers must become the judge." [more inside]
posted by kliuless on Mar 16, 2013 - 25 comments

the power and beauty of mathematics

An eternity of infinities (via) [more inside]
posted by kliuless on Feb 2, 2013 - 23 comments

SPAUN of the living

The simulated brain - "First computer model to produce complex behaviour performs almost as well as humans at simple number tasks." [1,2,3,4,5,etc.]
posted by kliuless on Dec 8, 2012 - 22 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

Grape Apes: The Origins of Morality

Chimp Fights and Trolley Rides from Radiolab's morality episode: "try to answer tough moral quandaries. The questions--which force you to decide between homicidal scenarios--are the same ones being asked by Dr. Joshua Greene. He'll tell us about using modern brain scanning techniques to take snapshots of the brain as it struggles to resolve these moral conflicts. And he'll describe what he sees in these images: quite literally, a battle taking place in the brain. It's 'inner chimp' versus a calculator-wielding rationale."
posted by kliuless on Sep 2, 2012 - 36 comments

use value vs. exchange value

What Is Value? What Is Money? (via via) [more inside]
posted by kliuless on Sep 1, 2012 - 15 comments

noncommutative balls in boxes

Morton and Vicary on the Categorified Heisenberg Algebra - "In quantum mechanics, position times momentum does not equal momentum times position! This sounds weird, but it's connected to a very simple fact. Suppose you have a box with some balls in it, and you have the magical ability to create and annihilate balls. Then there's one more way to create a ball and then annihilate one, than to annihilate one and then create one. Huh? Yes: if there are, say, 3 balls in the box to start with, there are 4 balls you can choose to annihilate after you've created one but only 3 before you create one..." [more inside]
posted by kliuless on Jul 21, 2012 - 78 comments

master of information

The New Biology - Eric Schadt's quest to upend molecular biology and open source it. (via)
posted by kliuless on Apr 9, 2011 - 35 comments

get your group on

The Price of Altruism - George Price, a (troubled) father of group selection thru his discovery of the eponymous Price Equation, has a rather interesting biography... [more inside]
posted by kliuless on Jan 15, 2011 - 9 comments

Advance Market Commitments

Inducement Prizes -- Best known for the Ansari X Prize, the DARPA Grand Challenge and the Clay Mathematics Millennium Problems, inducement prizes have a long history, but their recent successes have led to increased government interest, viz. challenge.gov, and resulted in the development of vaccines, thanks in large part to the work of Michael Kremer.* [more inside]
posted by kliuless on Jan 6, 2011 - 8 comments

The Domestication of Man: The Social Implications of Darwin

New Adventures in Recent Evolution - In the last few years, biologists peering into the human genome have found evidence of recent natural selection. cf. Social Darwinism: 21st century edition [previously] (via ip) [more inside]
posted by kliuless on Jul 20, 2010 - 19 comments

Director of Research at Google and AI genius

Reddit interviews Peter Norvig (reddit discussion) related: Seeds of AI at Google -- how the internet is shaping intelligence and learning and, in turn, the role of human culture in natural selection1,2 and why we are not living in western civilization. (via)
posted by kliuless on Mar 6, 2010 - 13 comments

(glowing) prairie voles illuminate the human condition

Monogamouse
Prairie voles have many vasopressin receptors in the reward centres of their brains. It seems as though these are wired up in a way that causes the animal to take pleasure from monogamy. (previously 1|2)
posted by kliuless on Jan 9, 2010 - 20 comments

he of the weird al hair and santa claus beard

R.Sapolsky on the uniqueness of humans in relation to the rest of the animal world (via)
posted by kliuless on Dec 20, 2009 - 28 comments

a pink sliver of rat brain sat in a beaker

The simulated brain - "The scientists behind Blue Brain hope to have a virtual human brain functioning in ten years... Dr. Markram began by collecting detailed information about the rat's NCC, down to the level of genes, proteins, molecules and the electrical signals that connect one neuron to another. These complex relationships were then turned into millions of equations, written in software. He then recorded real-world data -- the strength and path of each electrical signal -- directly from rat brains to test the accuracy of the software." Is it possible to digitally simulate a brain accurately? Can it only be analog? And are there quantum effects to be considered? (previously 1 2 3 4) [more inside]
posted by kliuless on Jul 18, 2009 - 251 comments

I will choose free will

The Free Will Theorem - "If there exist experimenters with (some) free will, then elementary particles also have (some) free will." (previously)
posted by kliuless on Jun 28, 2009 - 229 comments

space and time do not commute

TOE breaking Lorentz invariance - "by treating space and time differently as well as separately, the infinities in the quantum mechanics equations vanish, and gravity behaves as it should." [more inside]
posted by kliuless on Jun 27, 2009 - 44 comments

Computable data* (conceivably knowable) about people

Stephen Wolfram discusses Wolfram|Alpha: Computational Knowledge Engine - at the same time Google Adds Search to Public Data, viz: "Nobody really paid attention to the two hour snorecast" -- like a cross between designing for big data and a glossary of game theory terms -- on Wolfram|Alpha (previously), yet the veil is being lifted nonetheless: "[on] a platonic search engine, unearthing eternal truths that may never have been written down before," cf. hunch & cyc (and in other startup news...) [via] [more inside]
posted by kliuless on May 1, 2009 - 29 comments

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