Saturday, February 13, 2016

Antonin Scalia (March, 1936 - February, 2016)


[ed. Wow. This is really big. It'll be interesting to see how a new appointment eventually plays out (I think I can guess). ed. And so it begins.]

French Law Forbids Food Waste By Supermarkets

France has become the first country in the world to ban supermarkets from throwing away or destroying unsold food, forcing them instead to donate it to charities and food banks.

Under a law passed unanimously by the French senate, as of Wednesday large shops will no longer bin good quality food approaching its best-before date. Charities will be able to give out millions more free meals each year to people struggling to afford to eat.

The law follows a grassroots campaign in France by shoppers, anti-poverty campaigners and those opposed to food waste. The campaign, which led to a petition, was started by the councillor Arash Derambarsh. In December a bill on the issue passed through the national assembly, having been introduced by the former food industry minister Guillaume Garot.

Campaigners now hope to persuade the EU to adopt similar legislation across member states.

The law has been welcomed by food banks, which will now begin the task of finding the extra volunteers, lorries, warehouse and fridge space to deal with an increase in donations from shops and food companies.

Supermarkets will also be barred from deliberately spoiling food in order to stop it being eaten by people foraging in stores’ bins. In recent years, growing numbers of families, students, unemployed and homeless people in France have been foraging in supermarket bins at night to feed themselves. People have been finding edible products thrown out just as their best-before dates approached.

Some supermarkets doused binned food in bleach, reportedly to prevent food poisoning from items taken from bins. Other supermarkets deliberately binned food in locked warehouses for collection by refuse trucks. (...)

Until now French food banks received 100,000 tonnes of donated goods, 35,000 tonnes of which came from supermarkets. Even a 15% increase in food coming from supermarkets would mean 10m more meals being handed out each year, Bailet said.

Food banks and charities will, for their part, be obliged to collect and stock the food in properly hygienic conditions and distribute it with “dignity”. This means the food must be given out at a proper food bank or centre, where human contact and conversation is fostered, rather than, for example, simply organised as handouts on the street.

Crucially the law will also make it simpler for the food industry to give some excess products directly to food banks from factories. Until now, if a dairy factory made yoghurts carrying the brand name of a supermarket, it had been a long, complex process to donate any excess to charity. Now it would be faster and easier. “That is very important for food banks because this is a real source of quality products, coming straight from the factory,” Bailet said. (...)

Of the 7.1m tonnes of food wasted in France annually, 67% is binned by consumers, 15% by restaurants and 11% by shops. Each year 1.3bn tonnes of food are wasted worldwide.

by Angelique Chrisafis , The Guardian | Read more:
Image: Graham Turner

Rethinking Recycling

Criticize recycling and you may as well be using a fume-spewing chainsaw to chop down ancient redwoods, as far as most environmentalists are concerned. But recent research into the environmental costs and benefits and some tough-to-ignore market realities have even the most ardent of recycling fans questioning the current system.

No one is saying that using old things to make new things is intrinsically a bad idea, but consensus is building around the idea that the system used today in the United States on balance benefits neither the economy nor the environment.

In general, local governments take responsibility for recycling. The practice can deliver profits to city and county budgets when commodity prices are high for recycled goods, but it turns recycling into an unwanted cost when commodity markets dip. And recycling is not cheap. According to Bucknell University economist Thomas Kinnaman, the energy, labor and machinery necessary to recycle materials is roughly double the amount needed to simply landfill those materials.

Right now, that equation is being further thrown off by fluctuations in the commodity market. For example, the prices for recycled plastic have dropped dramatically, which has some governments, many of which have been selling their plastic recyclables for the last several years, re-thinking their policies around the material now that they may have to pay for it to be recycled. It’s a decision being driven not by waste management goals or environmental concerns, but for economic reasons that could feasibly change in the next couple of years.

Not only that, but in some cases recycling isn’t even what’s best for the environment.

The solution, according to economists, activists and many in the design community, is to get smarter about both the design and disposal of materials, and shift responsibility away from local governments and into the hands of manufacturers.

Material World

Because most people dispose of used aluminum, paper, plastic and glass in the same way — throw them into a bin and forget about them — it’s easy to think that all recycled materials are created equal. But this couldn’t be further from the truth. Each material has a unique value, determined by the rarity of the virgin resource and the price the recycled material fetches on the commodity market. The recycling process for each also requires a different amount of water and energy and comes with a unique (and sometimes hefty) carbon footprint.

All of this suggests it makes more sense to recycle some materials than others from an economic and environmental standpoint.

A recent study by Kinnaman provides research to back up that assertion. Using Japan as his test case — because the country makes available all of its municipal cost data for recycling — Kinnaman evaluated the cost of recycling each material, the energy and emissions involved in recycling, and various benefits (including simply feeling good about doing something believed to have an environmental or social benefit). He came to the controversial conclusion that an optimal recycling rate in most countries would probably be around 10 percent of goods.

But not just any 10 percent, Kinnaman cautions. To get the most benefit with the least cost, we should be recycling more of some items and less — or even none — of others. “Although the optimal overall recycling rate may be only 10%, the composition of that 10% should contain primarily aluminum, other metals and some forms of paper, notably cardboard and other source[s] of fiber,” he wrote in a follow-up piece in The Conversation. “Optimal recycling rates for these materials may be near 100% while optimal rates of recycling plastic and glass might be zero.”

by Amy Westervelt , Ensia | Read more:
Image :iStockphoto.com/ChrisSteer

Friday, February 12, 2016


Miin soo Huh, Slinky / Ji Sub Lee, printemps / été 2015
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G.Marazakis

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As a God Might Be


There are two kinds of technology critics. On one side are the determinists, who see the history of technology as one of inexorable progress, advancing according to its own Darwinian logic—the wheel, the steam engine, the autonomous car—while humans remain its hapless passengers. It is a fatalistic vision, one even the Luddite can find bewitching. “We do not ride upon the railroad,” Thoreau said, watching the locomotive barrel through his forest retreat. “It rides upon us.” On the opposite side of the tracks lie the social constructivists. They want to know where the train came from, and also, why a train? Why not something else? Constructivists insist that the development of technology is an open process, capable of different outcomes; they are curious about the social and economic forces that shape each invention.

Nowhere is this debate more urgent than on the question of artificial intelligence. Determinists believe all roads lead to the Singularity, a glorious merger between man and machine. Constructivists aren’t so sure: it depends on who’s writing the code. In some sense, the debate about intelligent machines has become a hologram of mortal outcomes—a utopia from one perspective, an apocalypse from another. Conversations about technology are almost always conversations about history. What’s at stake is the trajectory of modernity. Is it marching upward, plunging downward, or bending back on itself? Three new books reckon with this question through the lens of emerging technologies. Taken collectively, they offer a medley of the recurring, and often conflicting, narratives about technology and progress.

by Meghan O’Gieblyn, Boston Review | Read more:
Image: Michael Kaczorowski

She’ll Text Me, She’ll Text Me Not

A few years ago there was a woman in my life—let’s call her Tanya—and we had hooked up one night in Los Angeles. We’d both attended a birthday party, and when things were winding down, she offered to drop me off at home. We had been chatting and flirting a little the whole night, so I asked her to come in for a drink. At the time, I was subletting a pretty nice house up in the Hollywood Hills. It was kind of like that house De Niro had in Heat, but a little more my vibe than the vibe of a really skilled robber who takes down armored cars. I made us both a nice cocktail and we took turns throwing on records while we chatted and laughed. Eventually we started making out, and it was pretty awesome. I remember drunkenly saying something really dumb when she was leaving, like, “Tanya, you’re a very charming lady ...” She said, “Aziz, you’re a pretty charming guy, too.” The encounter seemed promising, as everyone in the room had agreed: We were both charming people.

I wanted to see Tanya again and was faced with a simple conundrum that plagues us all: How and when do I communicate next? Do I call? Do I text? Do I send a Facebook message? Do I send up a smoke signal? How does one do that?

Eventually I decided to text her, because she seemed to be a heavy texter. I waited a few days, so as not to seem overeager. I found out that the band Beach House, which we listened to the night we made out, was playing that week in L.A., so it seemed like the perfect move.

Here was my text:

“Hey—don’t know if you left for NYC, but Beach House playing tonight and tomorrow at Wiltern. You wanna go? Maybe they’ll let you cover The Motto if we ask nicely?”
A nice, firm ask with a little inside joke thrown in. (Tanya was singing the Drake song “The Motto” at the party and, impressively, knew almost all the lyrics.)

A few minutes went by and the status of my text message changed to “read.” My heart stopped. This was the moment of truth. I braced myself and watched as those little iPhone dots popped up. The ones that tantalizingly tell you someone is typing a response, the smartphone equivalent of the slow trip up to the top of a roller coaster. But then, in a few seconds—they vanished. And there was no response from Tanya.

Hmmm ... What happened? A few more minutes go by and ... Nothing. Fifteen minutes go by ... Nothing. My confidence starts going down and shifting into doubt. An hour goes by ... Nothing. Two hours go by ... Nothing. Three hours go by ... Nothing. A mild panic begins. I start staring at my original text. Once so confident, now I second-guess it all.

I’m so stupid! I should have typed “Hey” with two y’s, not just one! I asked too many questions. What was I thinking? Oh, there I go with another question. Aziz, WHAT’S UP WITH YOU AND THE QUESTIONS?

Then I realized something interesting: The madness I was descending into wouldn’t have even existed 20 or even 10 years ago. There I was, maniacally checking my phone every few minutes, going through this tornado of panic and hurt and anger all because this person hadn’t written me a short, stupid message on a dumb little phone.

Modern romance is stressful—especially when it comes to texting, which is on course to be the new norm for asking someone out. In 2010 only 10 percent of young adults used texts to ask someone out for the first time, compared with 32 percent in 2013. And so, more and more of us find ourselves sitting alone, staring at our phone’s screen with a whole range of emotions. But in a strange way, we are all doing it together, and we should take solace in the fact that no one has a clue what’s going on. (...)

In recent years behavioral scientists have shed some light on why waiting techniques can be powerful. Let’s first look at the notion that texting back right away makes you less appealing. Psychologists have conducted hundreds of studies in which they reward lab animals in different ways under different conditions. One of the most intriguing findings is that “reward uncertainty”—in which, for instance, animals cannot predict whether pushing a lever will get them food—can dramatically increase their interest in getting a reward, while also enhancing their dopamine levels so that they basically feel coked up.

If a text back from someone is considered a “reward,” consider the fact that lab animals who get rewarded for pushing a lever every time will eventually slow down because they know that the next time they want a reward, it will be waiting for them. So basically, if you are the guy or girl who texts back immediately, you are taken for granted and ultimately lower your value as a reward. As a result, the person doesn’t feel as much of an urge to text you or, in the case of the lab animal, push the lever.

Texting is a medium that conditions our minds in a distinctive way, and we expect our exchanges to work differently with messages than they did with phone calls. Before everyone had a cell phone, people could usually wait a while—up to a few days, even—to call back before reaching the point where the other person would get concerned. Texting has habituated us to receiving a much quicker response. From our interviews, this time frame varies from person to person, but it can be anywhere from 10 minutes to an hour to even immediately, depending on the previous communication. When we don’t get the quick response, our mind freaks out.

by Aziz Ansari & Eric Klineberg, Nautilus |  Read more:
Image: Daniel Fishel

Love is Like Cocaine

The View From Age 38

A few weeks ago, to prepare myself for my solo book club, I read a biography of Marcel Proust — though not the Jean-Yves Tadiédoorstopper that I mentioned in my first entry. Instead I read Benjamin Taylor’s Proust: The Search, a tightly focused biography concerned mainly with one question: how did Marcel Proust, of all writers, manage to author what many consider to be the greatest novel of all time? According to Taylor, it was not by any means preordained. No one in his circle, especially those who knew him in his youth, would have predicted it. His first published efforts were mediocre and forgettable. He lacked discipline, socialized too much, and couldn’t be bothered to show up for his part-time librarian job. He was also very sickly, an asthmatic who was easily exhausted by travel and parties — both of which he could not resist. Yet somehow, Taylor argues, “all this light-minded flitting around would turn out to be essential preparation.”

It took Proust about 13 years to write In Search of Lost Time, an extraordinary pace when you consider that he wrote seven volumes, none of them less than 400 pages and some close to 900. And it’s extraordinary considering the quality of his prose, and how interconnected the books are, with certain themes repeating and developing over the course of the novel, and a cast of characters changing over time, aging and evolving (or not evolving), just as real people do. Proust had the end of the novel in mind when he began, and a vague sense that he had found the structure — or, maybe, the moral sensibility — that could finally contain all the different modes of writing he wished to employ: description, analysis, dialogue, gossip, satire, and of course, his essays and insights about memory and consciousness. He was 38 years old and in poor health when he started writing. He knew he did not have any time left to waste. He believed — as it turned out, accurately — that he was writing on deadline. He died in 1922, shortly after completing his novel.

Reading Taylor’s biography, I kept thinking about the fact that I’m turning 38 this spring. This felt, at first, like a very egotistical thing to dwell upon, a secret hope that I might be on the cusp of writing a novel as grand as Proust’s. But, delusions aside, I think what really interests me about this parallel is that as a reader, I am the same distance from my childhood as Proust was from his when he began his book. Given Proust’s theme of memory lost and found, that similarity in perception has made the early pages of the novel feel very close to my current experience of memory and time.

Even those who have only a passing knowledge of Swann’s Way, the first volume of In Search of Lost Time, will probably know that it begins with a long recollection of the narrator’s childhood trips to the country. This recollection is famously spurred by a happenstance bite of a madeleine cookie dipped in tea. The narrator, Marcel, describes the memories as “involuntary”, and all the more beautiful because he did not even realize he had them; they were bidden by sensory experience, not intellectual recall.

When I first read Proust in college, I certainly knew what it was like to suddenly and surprisingly remember something after encountering a particular smell or taste. But at 21, my memories of childhood were so close that nothing really seemed forgotten. If the smell of someone’s shampoo unexpectedly brought back the pretty smile of a long-lost babysitter, I didn’t believe, as Proust did, that it was a stroke of luck to have remembered that girl, and that I might have forgotten her, entirely, if not for that whiff of Herbal Essences. Now, at 37, I understand how distant memories can become. Lately, I feel like I’m looking at my childhood from a slightly higher vantage point, so that I can finally see the topography. Certain events and people seem to have risen in importance while others have blended together. I was talking to a friend my age about this and she knew what I was talking about, reporting that just recently she seems to have forgotten parts of her teens and 20s. Does this happen to everyone, we wondered — was it some kind of subtle marker of impending middle age? Did it happen to Proust? Was forgetting what allowed him to write his marvelous book of remembrance?

by Hannah Gerson, The Millions |  Read more:
Image: Marcel Proust

Tom Jobim & Elis Regina

Thursday, February 11, 2016


Yumikrum, Lady of the Lake, collage, 2015
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Carrier, Pigeon

It’s natural to wonder how long the subsidies Amazon has so generously provided to our perpetually broke national postal system to deliver approximately forty percent of its packages will last, given that Amazon can’t help but to absorb the things that its partners do for it, whether it’s publishing books, producing TV shows, cranking out wipes, spinning HDMI cables, or transporting the items that its forty-six million (or more!) Prime members can’t stop ordering.

While Amazon’s interest in claiming the last mile of delivery is no secret—with the swarm of delivery drones that it constantly tells us is looming just over a slight technical and regulatory horizon, and the fleet of AmazonFresh delivery trucks and same-day couriers patrolling city streets—Bloomberg reports that Amazon is moving forward with project “Dragon Boat” (what a delightfully problematic codename!), a “global delivery network that controls the flow of goods from factories in China and India to customer doorsteps in Atlanta, New York and London”:
Amazon’s plan would culminate with the launch of a new venture called “Global Supply Chain by Amazon,” as soon as this year, the documents said. The new business will locate Amazon at the center of a logistics industry that involves not just shippers like FedEx and UPS but also legions of middlemen who handle cargo and paperwork associated with transnational trade. Amazon wants to bypass these brokers, amassing inventory from thousands of merchants around the world and then buying space on trucks, planes and ships at reduced rates. Merchants will be able to book cargo space online or via mobile devices, creating what Amazon described as a “one click-ship for seamless international trade and shipping.” … Amazon will partner with third-party carriers to build the global enterprise and then gradually squeeze them out once the business reaches sufficient volume and Amazon learns enough to run it on its own, the documents said.
Amazon potentially one day turning off the spigot of money that helps keep the USPS solvent is, in some sense, one of the more minor eventual outcomes of it building and controlling a complete, end-to-end, factory-to-doorstep global logistics and supply chain—FedEx and UPS have far more to worry about—but it is one of the more clear examples of the plausible negative consequences of funding-starved public infrastructure being underwritten and then slowly captured by a private company. (I mean, if you think that a USPS potentially diminished by the eventual loss of Amazon’s business is a negative thing. Maybe you don’t! One man’s public infrastructure is another man’s waste of tax dollars that could be better put to use unlocking latent value through the machinery of the startup economy, and besides, if we even have mail after decade or so, carriers would just be replaced by drones anyway, so I suppose it doesn’t really matter that much after all.)

by Matt Buchanan, The Awl |  Read more:
Image: Elvert Barnes

What It Feels Like to Freeze on National Television

I am reflecting here on the worst public embarrassment of my career. Two days ago I appeared live on television on ABC News Breakfast to provide comment on North Korea’s recent rocket launch, a topic on which I have written and spoken about extensively. The interview was a disaster from the get-go as I melted down under the weight of anxiety. The experience was mortifying, the feeling afterward devastating and the humiliation very very public.

Reliving the interview in my mind continues to be excruciating. However, I am writing about it now in an effort to “own” the experience, to thank the people who offered me support in the hours following the interview, and to make a broader point about anxiety and mental health.

Experiencing “the freeze”

I’m not the first person to freeze up on the big stage and I won’t be the last. But what does this experience actually feel like? I don’t need your sympathy, but I would like to share this story in solidarity with the large number of people who struggle with social anxieties on a daily basis.

I was contacted by the ABC studio in the afternoon on Sunday with an invitation to appear on News Breakfast the following morning, an invitation which I gladly accepted. It’s not the first time I’ve appeared on TV and I was confident in offering comment on my area of expertise. North Korea’s nuclear aspirations is a topic I have written on extensively and spoken about in the media and other public forums.

In doing the News Breakfast interview I inadvertently thrust my life-long battle with severe anxiety into the public domain. The moment I accepted the interview invitation on Sunday afternoon I started experiencing a steadily growing anxiousness that peaked as Michael Rowland threw to me in the ABC studio. I watched an NBA basketball game on TV on Sunday night but I couldn’t tell you a single detail about the game. Rather than go to sleep as PM ticked over to AM, I became increasingly wired as I ruminated endlessly on what I would say in the interview, what I would wear and how I would get to the ABC studio in Southbank in the early morning, among other things. As an introverted personality type I have a richer inner world but with an early start and an appearance on national TV looming my brain slipped into a state of hyper-arousal. I did not sleep a single minute before I jumped on the train to the city on Monday morning.

I arrived at the ABC’s Southbank studio in plenty of time before the schedule interview. I checked in at the security desk and waited about ten minutes before a member of the News Breakfast team escorted me upstairs. Next I was taken into the make-up suite to get daubed with foundation. In hindsight, my inability to say anything cogent about my interview topic in small talk with the friendly make-up person may have been a sign of things to come. From there I was brought into the TV studio office, where the presenters research their stories of the day off-air and support staff arrange interviewees and content feeds from around the world. I waited there for about twenty-five minutes, absent-mindedly scanning old newspapers while watching the goings-on about the office and repeating what I wanted to say about the North Korean rocket launch over and over in my head.

About two minutes before my interview I was taken into the studio editing room, which looked something akin to the situation room at the Oval Office, with numerous TV screens, computer monitors and other equipment sequestered in an otherwise dark, small room. Both the office and the editing room were an intense hive of fast-paced, urgent activity.

During the on-air story prior to my interview I was then led into the studio itself, where I was miked up and sat down next to Virginia Trioli and Michael Rowland, who both introduced themselves and shook my hand. Filled with cameras, auto-prompter screens, TVs and computer screens under the desk, I experienced the studio as a claustrophobic environment and felt instant discomfort.

The lead-in story to my interview was a piece on Whitehouse spokesperson Sam Powers’ official statement on the American reaction to the North Korean rocket launch. I remember thinking that I’d cite Powers’ remarks in my comments. As the Sam Powers story ended and the tech guys were counting in the live camera feed to the studio desk, I began to experience what could generally be described as a panic attack. I could feel my body over-load with adrenaline as my entire physique heated up, my muscles deadened and my skin began to vibrate as if being shocked with a mild electric current.

Michael Rowland introduced me and then threw to me with his first question. I have no memory of his actual question, my mind all of the sudden swimming in a haze. As I realised that seconds were ticking away without me forming a coherent answer, the physical anxiety reactions intensified. I babbled and stumbled, my carefully prepared comments slipping away from my conscious awareness. Michael and Virginia, seeing that I was struggling, asked prompting questions in an effort to change tack and help me out of the hole. I very much appreciated their efforts to shepherd me through the interview, but it was to no avail. With every question they asked I struggled even more as my anxiety symptoms took complete command of my body and mind. Finally I gave in and said “I can’t do this,” and Michael and the editors quickly threw to the next story.

by Dr Benjamin Habib | Read more:
Image: ABC News Breakfast

Gravitational Waves Exist: The Inside Story of How Scientists Finally Found Them


Just over a billion years ago, many millions of galaxies from here, a pair of black holes collided. They had been circling each other for aeons, in a sort of mating dance, gathering pace with each orbit, hurtling closer and closer. By the time they were a few hundred miles apart, they were whipping around at nearly the speed of light, releasing great shudders of gravitational energy. Space and time became distorted, like water at a rolling boil. In the fraction of a second that it took for the black holes to finally merge, they radiated a hundred times more energy than all the stars in the universe combined. They formed a new black hole, sixty-two times as heavy as our sun and almost as wide across as the state of Maine. As it smoothed itself out, assuming the shape of a slightly flattened sphere, a few last quivers of energy escaped. Then space and time became silent again.

The waves rippled outward in every direction, weakening as they went. On Earth, dinosaurs arose, evolved, and went extinct. The waves kept going. About fifty thousand years ago, they entered our own Milky Way galaxy, just as Homo sapiens were beginning to replace our Neanderthal cousins as the planet’s dominant species of ape. A hundred years ago, Albert Einstein, one of the more advanced members of the species, predicted the waves’ existence, inspiring decades of speculation and fruitless searching. Twenty-two years ago, construction began on an enormous detector, the Laser Interferometer Gravitational-Wave Observatory (LIGO). Then, on September 14, 2015, at just before eleven in the morning, Central European Time, the waves reached Earth. Marco Drago, a thirty-two-year-old Italian postdoctoral student and a member of the LIGO Scientific Collaboration, was the first person to notice them. He was sitting in front of his computer at the Albert Einstein Institute, in Hannover, Germany, viewing the LIGO data remotely. The waves appeared on his screen as a compressed squiggle, but the most exquisite ears in the universe, attuned to vibrations of less than a trillionth of an inch, would have heard what astronomers call a chirp—a faint whooping from low to high. This morning, in a press conference in Washington, D.C., the LIGO team announced that the signal constitutes the first direct observation of gravitational waves.

When Drago saw the signal, he was stunned. “It was difficult to understand what to do,” he told me. He informed a colleague, who had the presence of mind to call the LIGO operations room, in Livingston, Louisiana. Word began to circulate among the thousand or so scientists involved in the project. In California, David Reitze, the executive director of the LIGO Laboratory, saw his daughter off to school and went to his office, at Caltech, where he was greeted by a barrage of messages. “I don’t remember exactly what I said,” he told me. “It was along these lines: ‘Holy shit, what is this?’ ” Vicky Kalogera, a professor of physics and astronomy at Northwestern University, was in meetings all day, and didn’t hear the news until dinnertime. “My husband asked me to set the table,” she said. “I was completely ignoring him, skimming through all these weird e-mails and thinking, What is going on?” Rainer Weiss, the eighty-three-year-old physicist who first suggested building LIGO, in 1972, was on vacation in Maine. He logged on, saw the signal, and yelled “My God!” loudly enough that his wife and adult son came running.

The collaborators began the arduous process of double-, triple-, and quadruple-checking their data. “We’re saying that we made a measurement that is about a thousandth the diameter of a proton, that tells us about two black holes that merged over a billion years ago,” Reitze said. “That is a pretty extraordinary claim and it needs extraordinary evidence.” In the meantime, the LIGO scientists were sworn to absolute secrecy. As rumors of the finding spread, from late September through this week, media excitement spiked; there were rumblings about a Nobel Prize. But the collaborators gave anyone who asked about it an abbreviated version of the truth—that they were still analyzing data and had nothing to announce. Kalogera hadn’t even told her husband. (...)

LIGO is part of a larger effort to explore one of the more elusive implications of Einstein’s general theory of relativity. The theory, put simply, states that space and time curve in the presence of mass, and that this curvature produces the effect known as gravity. When two black holes orbit each other, they stretch and squeeze space-time like children running in circles on a trampoline, creating vibrations that travel to the very edge; these vibrations are gravitational waves. They pass through us all the time, from sources across the universe, but because gravity is so much weaker than the other fundamental forces of nature—electromagnetism, for instance, or the interactions that bind an atom together—we never sense them. Einstein thought it highly unlikely that they would ever be detected. He twice declared them nonexistent, reversing and then re-reversing his own prediction. A skeptical contemporary noted that the waves seemed to “propagate at the speed of thought.”

by Nicola Twilley, New Yorker |  Read more:
Image: Aleks Sennwald