E. Farrell Helbling in Nature:

In a paper in Nature, Kim et al.¹ report 3D fliers that are inspired by the passive, helicopter-style wind-dispersal mechanism of certain seeds. The adopted production processes enable the rapid parallel fabrication of many fliers and permit the integration of simple electronic circuits using standard silicon-on-insulator techniques. Tuning the design parameters — such as the diameter, porosity and wing type — generates beneficial interactions between the devices and the surrounding air. Such interactions lower the terminal velocity of the fliers, increase air resistance and improve stability by inducing rotational motion. When combined with complex integrated circuits, these devices could form dynamic sensor networks for environmental monitoring, wireless communication nodes or various other technologies based on the network of Internet-connected devices called the Internet of Things.

So far, research into collectives of aerial vehicles has been focused on active systems, including quadcopters^2,3 and insect- or bird-inspired robotic platforms⁴. Active systems have the benefit of being able to move independently through their environment. However, their practical applications are limited because of the size and safety concerns of larger platforms (such as quadcopters, which have a wingspan of about 50 centimetres) and lack of onboard electronics and power supplies that enable autonomous locomotion in real-world settings in the case of smaller platforms (with a wingspan of roughly 3.5 cm)⁵. Furthermore, because these research platforms^5–7 are highly specialized and assembled by hand, they cannot be used for studies of collective systems.

More here.

Taos Mountain

“Though the mountains fall into the sea”
describes the faith of some, but the mountains do not move
whatever we say, whatever saints and shamans do.
It is their indifference to us that makes them sacred.

On the edge of this flat town, beyond the pueblo,
the black mountain rises, a reference point
to every human moment, utterly silent.
No one climbs this mountain, there are no trails,
because the place is holy: it does not exist to serve us,
it is not meant to please us, it simply is,
and in this way it is a god.

Mountains do not move, and that is their mountainness.
Geologists can say they have moved over time,
but not in human time. This mountain outside my window
has always been there: when the pueblo was built,
when the Spanish came and were driven away,
when the missionaries returned, then Americans and Apache.
The mountain abides. That is its power
in imagination and worship. Were it to respond
to our prayers and dances it would cease to be itself.

Its silence is what we listen to, and the reason
it is a source of strength. I will not pretend
it whispers secrets to me or that I have pleased it.
The mountain is black even in sunlight or capped with snow.
It may have its back turned to the human
like an inscrutable mother in a shawl.
There are no signs given us to read
and any language to describe it is our own.
The fact of the mountain is our bare and only creed.

by Stephen Hollaway
from the Ecotheo Review

Alex Ross at The New Yorker:

On December 15, 1929, Dr. Philip M. Lovell, the imperiously eccentric health columnist for the Los Angeles Times, invited readers to tour his ultramodern new home, at 4616 Dundee Drive, in the hills of Los Feliz. On a page crowded with ads promoting quack cures for “chronic constipation” and “sagging flabby chins,” Lovell announced three days of open houses, adding that “Mr. Richard T. Neutra, architect who designed and supervised the construction . . . will conduct the audience from room to room.” Neutra’s middle initial was actually J., but this recent Austrian immigrant, thirty-seven years old and underemployed, had little reason to complain: he was being launched as a pioneer of American modernist architecture. Thousands of people took the tour; striking photographs were published. Three years later, Philip Johnson and Henry-Russell Hitchcock, the codifiers of the International Style, hailed Neutra’s work as “stylistically the most advanced house built in America since the War.”

more here.

Bruce Robbins at n+1:

THE ARC THAT SAID HIMSELF gave to his life is not entirely reliable. He tells the story of withdrawing from Foucault and “the kind of anti-historical and starkly theoretical position I seemed to be advancing in Beginnings.” But James Clifford made it clear in an early review that Orientalism was already torn by conflicting commitments for as well as against humanism, and as Brennan notes, those conflicts are even apparent three years earlier in Beginnings itself. Indeed, at the very beginning of his career, when “Said was quickly becoming known as the apostle of ‘theory,’” Brennan declares that “the thought horrified him.” It makes little sense, then, to think of Said as riding the theory wave and then jumping off. What he got from theory’s reversal of text and critic was the conviction that “criticism, not necessarily fiction, was where the deepest cultural recesses of society were laid bare”—in other words, that the work of the critic mattered in the world and to the world. This commitment remained consistent throughout his career, whatever his take on Foucault and company, and it’s one reason why his fellow critics came to embrace him, despite political and theoretical differences.

more here.

We will be switching over to new servers today, Thursday, September 23, and this means we may not be able to post new items for a day or possibly longer. Thanks for your patience, and we’ll make the interruption as short as possible.

Yours, Abbas

Lisa Wells at Harper’s Magazine:

He died the day after Christmas. His loved ones washed and anointed his body and kept vigil at his bedside. “He looked like a king,” Jenifer told me. “He was really, really beautiful.” She showed me a few photos. His body had been laid atop a hemp shroud and covered from the neck down in a layer of dried herbs and flower petals. Bouquets of lavender and tree fronds wreathed his head, and a ladybug pendant on a beaded string lay across his brow like a diadem. Only his bearded face was exposed, wearing the peaceful, inscrutable expression of the dead. He did look like a king, or like a woodland deity out of Celtic mythology—his gauze-wrapped neck the only evidence of his life as a mortal.

On the third day of their vigil, Jenifer felt his spirit go.

Amigo Bob joined nine other pioneers at the Greenhouse on the cusp of the New Year: the first humans in the world to be legally composted.

more here.

Leo Robson at The New Statesman:

The one thing you can say for sure about Katie Kitamura’s wonderfully sly new novel – the follow-up to her 2017 breakthrough A Separation, and one of Barack Obama’s summer reading picks – is that it offers a portrait of limbo. The unnamed narrator, a Japanese woman raised in Europe, has accepted a one-year contract as an interpreter at the International Criminal Court – identified only as “the Court” – in The Hague. The book’s title – which, like that of its predecessor, rejects the firmness of the definite article – refers to the relationship one might ideally have with language, spaces, customs, other people, one’s own emotions, the past. It’s unclear, at least at first, to what degree the character’s own failure to achieve this state herself is a product of temperament or circumstances – whether she is simply adjusting, or whether this is how she always presents, and negotiates, the world.

more here.

Richard Hughes Gibson in The Hedgehog Review:

The historian Joe Moran begins his 2018 style guide, First You Write a Sentence, by outlining a comic routine unfortunately familiar to many of us:

First I write a sentence. I get a tickle of an idea for how the words might come together, like an angler feeling a tug on the rod’s line. Then I sound out the sentence in my head. Then I tap it on my keyboard, trying to recall its shape. Then I look at it and say it aloud, to see if it sings. Then I tweak, rejig, shave off a syllable, swap a word for a phrase or phrase for a word. Then I sit it next to other sentences to see how it behaves in company. And then I delete it all and start again.

(This process has in fact already played out several times in the very piece that you are reading, albeit with one twist: rather than deleting the false starts, I have stowed them at the bottom of the page in hopes that they might be of use later on.) Moran goes on to point out that, aside from sleeping, writing sentences constitutes the biggest slice in the pie chart of his life. You can easily see why: On this account, “writing” a sentence is an evolutionary process in which generations of imperfectly adapted sentences arise, survive numerous trials, and settle into a potential habitat, only to die off again and again, sometimes dooming the entire ecosystem in the process, all in the service of formulating the fittest expression.

More here.

Philip Ball in Quanta:

Back in 2000, when Michael Elowitz of the California Institute of Technology was still a grad student at Princeton University, he accomplished a remarkable feat in the young field of synthetic biology: He became one of the first to design and demonstrate a kind of functioning “circuit” in living cells. He and his mentor, Stanislas Leibler, inserted a suite of genes into Escherichia coli bacteria that induced controlled swings in the cells’ production of a fluorescent protein, like an oscillator in electronic circuitry.

It was a brilliant illustration of what the biologist and Nobel laureate François Jacob called the “logic of life”: a tightly controlled flow of information from genes to the traits that cells and other organisms exhibit.

But this lucid vision of circuit-like logic, which worked so elegantly in bacteria, too often fails in more complex cells.

More here.

Mark Blyth in The Guardian:

I travelled to New York City in August for the first time since the pandemic began, to visit friends who had just bought their first home. They are firmly upper-middle class and in their 40s. They took out a mortgage for $1.5m (£1.1m) to buy a place in a Brooklyn neighbourhood that was regarded until recently as an area immune to gentrification. So far, so typical. Asset ownership comes late these days.

On the second day of my visit I saw a group of twenty- and thirtysomethings sitting together in a local park (of the type illuminated by sodium lights to discourage drug dealing). They had gathered around a banner announcing a meeting of the local tenants’ rights union. Almost every member of the group looked as if they could have featured in the pages of an Ivy League magazine. All bar one were white. Their neighbourhood was not.

I asked my host to explain this. She said real-estate investors were buying up single family homes, bulldozing them and building slick new apartment blocks. Given the stagnant supply of housing and the increasing demand for places to live, local rents were now “crazy”, and relatively wealthy residents were forming tenants’ unions. “Housing is now an asset class for the uber-rich,” she said. “What do you expect?”

We’ve all got used to the claim that housing is now an asset class, but few of us really think through what that means, or how we got here.

More here.

First Milk

After all that birth, the legs you’ve used your whole life
are now wobbly & the lake where your son used to swim

trickles from between them. The spaces between your fingers
feel sticky. The first thing the baby does is search for the warmth

of   you, his face a small suction cup for the mounds you’ve been
building. Those first golden drops, thick as honey, spill from you

& the nurse rushes to catch them with a plastic spoon. God forbid
they soak your hospital gown or run down your rib cage. Once, you were

a girl with two breasts like the smallest constellation, an incomplete ellipsis.
Today, they find new purpose. Today they are nourishment & comfort,

food, water, some kind of magic. They work so hard after years
of  thinking themselves merely decorative.

by Danni Quintos
from Poetry magazine, September, 2021

Henry Nicholls in Nature:

Rich in meaning and metaphor, the word ‘heart’ conjures up many images: a pump, courage, kindness, love, a suit in a deck of cards, a shape or the most important part of an object or matter. These days, it also brings to mind the global increase in heart attacks and cardiovascular damage that attends COVID-19. As a subject for a book, the heart is an organ with a lot going for it.

Enter zoologist Bill Schutt. His book Pump refuses to tie the heart off from the circulatory system, and instead uses it to explore how multicellular organisms have found various ways to solve the same fundamental challenge: satisfying the metabolic needs of cells that are beyond the reach of simple diffusion. He writes of the co-evolution of the circulatory and respiratory systems: “They cooperate, they depend on each other, and they are basically useless by themselves.” At his best, Schutt guides us on a journey from the origin of the first contractile cells more than 500 million years ago to the emergence of vertebrates, not long afterwards. He takes in, for example, horseshoe crabs, their blood coloured blue by the presence of the copper-based oxygen-transport protein haemocyanin (equivalent to humans’ iron-based haemoglobin).

We learn that insects, lacking a true heart, have a muscular dorsal vessel that bathes their tissues in blood-like haemolymph. Earthworms, too, are heartless but with a more complex arrangement of five pairs of contractile vessels. Squid and other cephalopods have three distinct hearts. The are plenty of zoological nuggets to enjoy along the way. The tubular heart of a sea squirt, for instance, contains pacemaker-like cells that enable it to pump in one direction and then the other. Some creatures need masses of oxygen, others little, leading to more diversity. The plethodontids (a group of salamanders) have neither lungs nor gills, he explains: their relatively small oxygen requirements are met by diffusion through the skin.

More here.

Lydia Denworth in Scientific American:

What is found in a good conversation? It is certainly correct to say words—the more engagingly put, the better. But conversation also includes “eyes, smiles, the silences between the words,” as the Swedish author Annika Thor wrote. It is when those elements hum along together that we feel most deeply engaged with, and most connected to, our conversational partner, as if we are in sync with them. Like good conversationalists, neuroscientists at Dartmouth College have taken that idea and carried it to new places. As part of a series of studies on how two minds meet in real life, they reported surprising findings on the interplay of eye contact and the synchronization of neural activity between two people during conversation. In a paper published on September 14 in Proceedings of the Natural Academy of Sciences USA, the researchers suggest that being in tune with a conversational partner is good but that going in and out of alignment with them might be better.

Making eye contact has long been conceived as acting like a cohesive glue, connecting an individual to the person with whom they are talking. Its absence can signal social dysfunction. Similarly, the growing study of neural synchrony has focused on the positive aspects of alignment in brain activity between individuals.

In the new study, by using pupil dilation as a measure of synchrony during unstructured conversation, psychologist Thalia Wheatley and graduate student Sophie Wohltjen found that the moment of making eye contact marks a peak in shared attention—and not the beginning of a sustained period of locked gazes. Synchrony, in fact, drops sharply after looking into the eyes of your interlocutor and only begins to recover when you and that person look away from each other. “Eye contact is not eliciting synchrony; it’s disrupting it,” says Wheatley, senior author of the paper.

More here.

Ed Simon at The Millions:

On a December morning in 1947 when three fellows at Princeton’s Institute for Advanced Study set out for the Third Circuit Court in Trenton, it was decided that the job of making sure that the brilliant but naively innocent logician Kurt Gödel didn’t say something intemperate at his citizenship hearing would fall to Albert Einstein. Economist Oscar Morgenstern would drive, Einstein rode shotgun, and a nervous Gödel sat in the back. With squibs of low winter light, both wave and particle, dappled across the rattling windows of Morgenstern’s car, Einstein turned back and asked, “Now, Gödel, are you really well prepared for this examination?” There had been no doubt that the philosopher had adequately studied, but as to whether it was proper to be fully honest was another issue. Less than two centuries before, and the signatories of the U.S. Constitution had supposedly crafted a document defined by separation of powers and coequal government, checks and balances, action and reaction. “The science of politics,” wrote Alexander Hamilton in “Federalist Paper No. 9,” “has received great improvement,” though as Gödel discovered, clearly not perfection. With a completism that only a Teutonic logician was capable of, Gödel had carefully read the foundational documents of American political theory, he’d poured over the Federalist Papers and the Constitution, and he’d made an alarming discovery.

It’s believed that while studying Article V, the portion that details the process of amendment, Gödel realized that there was no safeguard against that article itself being amended.

More here.

Alvin Powell in The Harvard Gazette:

Testosterone’s wide-reaching effects occur not just in the human body, but across society, powering acts of aggression, violence, and the large disparity in their commission between men and women, according to Harvard human evolutionary biologist Carole Hooven.

Hooven, lecturer and co-director of undergraduate studies in Human Evolutionary Biology, waded directly into the nature versus nurture debate Thursday evening, laying out her case for the hormone’s function as a foundation for aspects of male behavior. She traced the role of testosterone in the natural world, pointing out its role in differentiating males from females across the animal kingdom. Its far higher levels in males — 10 to 20 times that in females — act as a switch that turns on genes, creating stronger, more heavily muscled individuals, along with more aggressive behavior.

From an evolutionary standpoint, the reason for these differences is the biological imperative to mate, said Hooven, whose recent book, “T: The Story of Testosterone, the Hormone that Dominates and Divides Us,” was published in July.

More here.

Sam Jones in The Guardian:

Sergio Ramírez, Nicaragua’s best-known living writer, hero of the Sandinista revolution, and former vice-president of the volcanic Central American nation, has lived through both tougher times and duller publicity tours.

Even so, the past few days have been – as he puts it, with a degree of understatement – “an odd experience”.

Ramírez always knew his latest novel, Tongolele no sabía bailar (Tongolele Didn’t Know How to Dance), would cause a stir in his homeland. But he confesses to feeling “surprised, bewildered and assaulted” when the regime of his erstwhile comrade, President Daniel Ortega, issued a warrant for his arrest last week, accusing him, among other things, of conspiracy, money laundering, inciting violence and hatred, and undermining national integrity.

To banish any lingering doubts about the government’s extraordinary antipathy towards the 79-year-old author and his works, Nicaraguan customs officers also impounded all copies of the new book on arrival.

More here.