Posts Tagged ‘physics’
Tuesday Night MOOCs and More
* 20 Things the Matter with MOOCs.
* Also from Richard: What do asteroids, MOOCs, and medical records have in common? All are examples, currently in the news, of the way in which public policy in the US is driven not by the common good or professionals or expert knowledge, but by the generation of mediashock in the service of the entrepeneurial desire of cybercapitalism to monetize data.
All of us that use the internet are already practicing Drone Ethnography. Look at the features of drone technology: Unmanned Aerial Vehicles (UAV), Geographic Information Systems (GIS), Surveillance, Sousveillance. Networks of collected information, over land and in the sky. Now consider the “consumer” side of tech: mapping programs, location-aware pocket tech, public-sourced media databases, and the apps and algorithms by which we navigate these tools. We already study the world the way a drone sees it: from above, with a dozen unblinking eyes, recording everything with the cold indecision of algorithmic commands honed over time, affecting nothing—except, perhaps, a single, momentary touch, the momentary awareness and synchronicity of a piece of information discovered at precisely the right time. An arc connecting two points like the kiss from an air-to-surface missile. Our technological capacity for watching, recording, collecting, and archiving has never been wider, and has never been more automated. The way we look at the world—our basic ethnographic approach—is mimicking the technology of the drone.
* The ACLU on what Rand Paul achieved.
* Six-Month-Old Baby Dies From Gunshot Wounds In Chicago.
* “Defense attorneys believe the girl, who lived across the river in Weirton, W.Va., made a decision to excessively drink and — against her friends’ wishes — to leave with the boys. They assert that she consented to sex,” reports the Cleveland Plain-Dealer’s Rachel Dissell. Richmond’s attorney, Walter Madison, is getting specific, citing “an abundance of evidence here that she was making decisions, cognitive choices … She didn’t affirmatively say no.” She was unconscious at the time.
* I think it’s possible Natalia is the reckoning of Girls.
* The Herbalife war: Hedge-fund titan Bill Ackman has vowed to bring down Herbalife, the 33-year-old nutritional-supplement company, which he views as a pyramid scheme. With his massive shorting of Herbalife stock, the price plummeted, prompting two fellow billionaires—Ackman’s former friend Dan Loeb and activist investor Carl Icahn—to take the opposing bet on Herbalife. As the public brawl rivets Wall Street, William D. Cohan learns why, this time, it’s personal.
* The most influential songwriter of his time has become the first rock star voted into the elite, century-old American Academy of Arts and Letters, where artists range from Philip Roth to Jasper Johns and categories include music, literature and visual arts.
* Exhumation of Pablo Neruda’s remains set for 8 April.
* The Law Graduate Debt Disaster Goes Critical.
* Ezra Klein gets it very wrong.
* The US Senate: Where Democracy Goes to Die.
* Here comes the asteroid mining.
* The insane plan to rescue Napoleon from St. Helena by submarine.
* 14 Great Sci-Fi Stories by Philip K. Dick as Free Audio Books and Free eBooks.
The Apocalyptic Sublime, Grand Theft Auto Edition
Grand Theft Auto—if tires had negative friction. Via MeFi.
and
and
I’m prepared to give this a three picture deal.
If They Could Get the Physics Engine Right, It’d Make a Pretty Good Game
Short film of the night: Tempo.
Sunday Links
* Why they occupy: University of California edition.
* The recession comes home to Morris County.
Morris County has experienced a sharp increase in motor vehicle burglaries throughout 2011, according to Morris County Prosecutor Robert Bianchi, who said the increase can be attributed to independent trends that have emerged in small geographic areas in the county at different times and committed by different individuals.
* MetaFilter has your Neil deGrasse Tyson Overdrive.
* Get me Val Kilmer: Christian Bale says he’s done playing Batman.
“I suppose when I was writing V for Vendetta I would in my secret heart of hearts have thought: wouldn’t it be great if these ideas actually made an impact? So when you start to see that idle fantasy intrude on the regular world… It’s peculiar. It feels like a character I created 30 years ago has somehow escaped the realm of fiction.”
* Also on the Occupy beat: “Pre-Occupied: The Origins and Future of Occupy Wall Street.” And also at the New Yorker: Was anti-Keystone activism the real political movement of 2011?
* Something Is Happening: Notes on the First Two Months of Occupy.
* Mary Roach: 10 Things You Didn’t Know about Orgasm.
* Aaron Bady: “When everything that can be recorded is recorded, our means of protecting privacy must fundamentally change.”
* Robotic prison wardens to patrol South Korean prison. But the prototype looks so friendly!
Friday Night Links
* The absolute craziest thing I’ve ever seen: Berkeley Researchers Turn Brain Waves Into YouTube Videos.
* Even news that the laws of physics have been overturned pales in comparison. I know, I know: Bad Astronomer, xkcd.
* Louis talks to the A.V. Club about Louie: 1, 2, 3, 4.
* Paul Campos: “The law’s absurd formalism was part of its strength as ideology.” Precisely. This insight applies to many more aspects of the legal system than the revolting spectacle of our contemporary system of capital punishment, which in a case such as Davis’s — which is not in this respect was not unusual — psychologically tortures the defendant, the defendant’s family, the victim’s family, and others connected to the case for literally decades before producing what the system then has the temerity to call “justice.” (The climax of this spectacle last night involved Davis being strapped to a gurney with a needle in his arm for nearly four hours, waiting for various legal personages to respond to the question of whether, all things considered, it was finally time to stop his heart with state-administered poison).
That we tolerate this kind of thing so readily helps explain, in its own way, why it sometimes seems impossible to do much of anything about the absurdities and dysfunctions of the system of legal education that legitimates it in the first instance. Or perhaps it’s the other way around: perhaps we tolerate the absurdity of something like the 22-year “process” that resulted in the horror of Davis’s final hours because we ‘re socialized from the beginning of our careers in this system to accept all kinds of absurdity and injustice as natural, inevitable, and therefore legitimate.
Reading this I was reminded of Duncan Kennedy’s excellent article “Legal Education and the Reproduction of Hierarchy,” which Corinne linked the other day on Twitter.
* Ground Zero Mosque opens without controversy. It’s almost as if the objections to this were complete bullshit.
* I’m steadfastly not paying attention to the GOP primary, but this is pretty astounding, even by Republican standards.
* DOJ: Rick Perry’s Texas Redistricting Plan Purposefully Discriminated Against Minorities.
* Why Is TV Suddenly Overstuffed With Buxom Bunnies, Sexy Stewardesses, and Charlie’s Angels?
* How long—how long must we sing this song? Forty years, give or take.
* Speaking at a Climate Week NYC event hosted by the Maldives, the TckTckTck campaign, and the U.N., Greenpeace International President Kumi Naidoo argued that the path to a sustainable future will involve peaceful, popular civil disobedience. “The struggle for climate justice is not a popularity contest,” he argued. He said the lesson of the Arab Spring, and the history of struggles from suffrage to civil rights to the end of apartheid, is that change only comes when decent men and women are willing to risk their lives and go to jail in peaceful protest.
* The world’s rudest hand gestures.
* Great Lost Pop Culture Treasures.
* And Chris Ware on your iPad. Have a good weekend.
Wednesday Night Links: The Sequel
* Repeating myself from Twitter: you should know how great the Benedict Cumberbatch/Martin Freeman Sherlock series from the BBC is. How we spent our evening. Great fun.
* The situation at Fukushima continues to worsen: now they’re dropping water from helicopters. The news just gets bleaker and bleaker by the day.
* Understatement of the day: Japan crisis revives global nuclear debate.
* Chris Newfield recaps the UC Regents Committee on Finance.
* Michigan Governor’s Anti-Union Power Grab Is Unconstitutional
* Attempts to recall Democratic legislators in Wisconsin aren’t coming together. I’m sure the Koch brothers will make it happen, but I’m glad it won’t be easy for them.
* Wanna Cut Wasteful Spending? Let’s Start with Abstinence-Only Education.
* And once you become willing to take on the philosophical baggage of a multifoliate universe (and aren’t bothered by your countless identical twins), some of the deepest and most vexing problems about physics become easy to understand. All those nonsensical-seeming quantum-mechanical laws—that a particle can be in two places at once, that two objects can have a spooky connection that appears to transcend the laws governing space and time—instantly become explicable the moment you view our universe as one among many. And from Greene’s point of view, the 10⁵⁰⁰ different cosmoses described by string theory have ceased to be an unwanted artifact of the theory’s equations, instead becoming a factual description of universes that actually exist. Each of these universes is a bubble cosmos with its own cosmological constants, and as he says, “with some 10⁵⁰⁰ possibilities awaiting exploration, the consensus is that our universe has a home somewhere in the landscape.” Which is to say, string theory can no longer be accused of describing a landscape of fictional universes; our universe is just one in a collection of cosmoses as real as our own, even if we’re unable to see them. Charles Seife at Bookforum on Brian Greene’s multiversism. Via (where else?) 3 Quarks Daily.
* And MetaFilter remembers creepy moments from ’80s sitcoms.
Science Faction
Is theoretical physics becoming “softer” than anthropology? Painful-but-necessary slashed budgets are undoubtedly just around the corner. Can theoretical physics justify its economic value in the 21st-century marketplace? Do we need theoretical physics? Can theoretical physics be saved?
Before the Beginning
Roger Penrose thinks he’s discovered proof of what existed before the Big Bang.
The Big Bang model holds that everything that now comprises the universe was once concentrated in a single point of near-infinite density. Before this singularity exploded and the universe began, there was absolutely nothing – indeed, it’s not clear whether one can even use the term “before” in reference to a pre-Big-Bang cosmos, as time itself may not have existed yet. In the current model, the universe began with the Big Bang, underwent cosmic inflation for a fraction of a second, then settled into the much more gradual expansion that is still going on, and likely will end with the universe as an infinitely expanded, featureless cosmos.
Sir Roger Penrose, one of the most renowned physicists of the last fifty years, takes issue with this view. He points out that the universe was apparently born in a very low state of entropy, meaning a very high degree of order initially existed, and this is what made the complex matter we see all around us (and are composed of) possible in the first place. His objection is that the Big Bang model can’t explain why such a low entropy state existed, and he believes he has a solution – that the universe is just one of many in a cyclical chain, with each Big Bang starting up a new universe in place of the one before.
How does this help? Well, Penrose posits the end of each universe will involve a return to low entropy. This is because black holes suck in all the matter, energy, and information they encounter, which works to remove entropy from our universe. (Where that entropy might go is another question entirely.) The universe’s continued expansion into eventual nothingness causes the black holes themselves to evaporate, which ultimately leaves the universe in a highly ordered state once again, ready to contract into another singularity and set off the next Big Bang.
As alternative theories go, it’s not without its merits, but there’s no evidence to support it…until now. He says he’s found evidence for his ideas in the cosmic microwave background, the microwave radiation that permeates the universe and was thought to have formed 300,000 years after the Big Bang, providing a record of the universe at that far distant time. Penrose and his colleague Vahe Gurzadyan have discovered clear concentric circles within the data, which suggests regions of the radiation have much smaller temperature ranges than elsewhere.





