Jennifer Szalai at the NY Times:
The Science Museum in Britain holds numerous items associated with the Nobel Prize-winning mathematical physicist Sir Roger Penrose: books on consciousness and the nature of space and time; a set of wooden puzzles made by his physician father; a model of one of the Penroses’ “impossible objects” — a staircase on which a person could ascend or descend forever.
But maybe the most extraordinary item is also the most ordinary: a four-pack of Kleenex Quilted Peach Toilet Tissue. The quilting was based on one of Penrose’s non-repeating tiling patterns in order to avoid “nesting,” which would have risked stuck squares and unsightly bulges in the roll — yet nobody from Kleenex had consulted Penrose. In 1997, Pentaplex, a company set up to develop commercial applications of his work, sued the toilet paper’s manufacturer, Kimberly Clark. As a Pentaplex director announced at the time: “When it comes to the population of Great Britain being invited to wipe their bottoms on what appears to be the work of a knight of the realm without his permission, then a last stand must be made.”
more here.
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THE LINGUIST ROSS PERLIN is an encyclopedist of New York City’s microworlds. In 2016, when he took me and ten others on a tour of Ridgewood, Queens, he alerted us to the presence of a dozen languages spoken in a two-square-mile radius, including Syriac, Yiddish, Malayalam, Haitian Creole, and Kichwa. He led us into an ancient, black-and-white-tiled, espresso-scented Sicilian social club, where a retired nonagenarian factory worker proudly discussed his dialect, Partanna. Later, we drank beer and ate bratwurst at the Gottscheer Hall, a tavern and cultural center for the Gottscheers, a tiny community of Germanic people who fled their native Slovenia following the World Wars. Their language, Gottscheerish, is a thirteenth-century dialect of German that now survives largely in New York.
In the 2016 science fiction movie Arrival, a linguist is faced with the daunting task of deciphering an alien language consisting of palindromic phrases, which read the same backwards as they do forwards, written with circular symbols. As she discovers various clues, different nations around the world interpret the messages differently—with some assuming they convey a threat. If humanity ended up in such a situation today, our best bet may be to turn to research uncovering how 
As you know, I am a scholar of literature, with no more than a high school background in math. Yet together we shall reach up and touch the thinnest, most delicate branches in the canopy of modern mathematics. Most likely, we will snap them by mistake.
We crafted our first rodent car from a plastic cereal container. After trial and error, my colleagues and I found that rats could learn to drive forward by grasping a small wire that acted like a gas pedal. Before long, they were steering with surprising precision to reach a Froot Loop treat.
This introductory essay advances two main claims. First, I argue that although America’s relative power has declined from its post-Cold War peak, this trend is not as profound as pessimists maintain. The United States still retains enormous advantages relative to all other powers; barring a prolonged series of self-inflicted wounds, it will be the most powerful state in the world for many years to come. Unfortunately, the possibility of decline hastened by misguided policy decisions cannot be ruled out.
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Johns Hopkins University-led researchers, working with the Biomarkers for Older Controls at Risk for Dementia (BIOCARD) cohort, have found that certain factors are linked to faster brain shrinkage and quicker progression from normal thinking abilities to mild cognitive impairment (MCI). People with type 2 diabetes and low levels of specific proteins in their cerebrospinal fluid showed more rapid brain changes and developed MCI sooner than others.
In Vermeer’s Woman in Blue Reading a Letter, the observer is drawn into a simple domestic scene: the titular woman stands illuminated in the light of, we presume, an unseen window. The expression on her face as she reads is perhaps one of surprise, certainly one of concentration. In this vivid, static painting, she seems even more still and more rooted, unmoving though clearly moved by what she is reading. And the observer is similarly absorbed by this intimate moment.
JAMIE HOOD: Hello!
When, on January 19, 1939, W.H. Auden boarded at Southampton a ship bound for New York City, he could not have known that he would never live in England again. But some months earlier, he had told his friend Christopher Isherwood that he wanted to settle permanently in the United States. Almost as soon as he arrived in New York, he began to rethink his calling as a poet, and, moreover, to reconsider the social role and function of poetry. (He also began a spiritual pilgrimage that would lead him to embrace the Christian faith of his childhood.)
An important goal for Prothero is to explain how we know what we know so that readers understand how the climate works and why it changes. As such, much attention is given to the numerous lines of evidence on which palaeoclimatology draws. The fossils that show