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Biden’s spending boosted infrastructure. But vulnerabilities remain.

ClimateWire News - Tue, 03/25/2025 - 6:15am
The American Society of Civil Engineers credits the Inflation Reduction Act and the bipartisan infrastructure law for boosting roads, ports and transit systems.

Climate change speeds up water cycle, triggers more extreme weather

ClimateWire News - Tue, 03/25/2025 - 6:14am
Rising temperatures are increasing the odds of both severe drought and heavier precipitation that wreak havoc on people and the environment.

Indonesia confirms $20B climate deal despite US exit

ClimateWire News - Tue, 03/25/2025 - 6:14am
Analysts said this month the U.S. exit could add further delays to investment plans, but they expected the Just Energy Transition Partnerships to survive.

2 firefighters die in South Korea as dry winds fuel fires

ClimateWire News - Tue, 03/25/2025 - 6:13am
The fires forced the closures of several highway sections in the country's southeast, including one connected to South Korea's second-largest city.

Wildfires in western Japan damage homes, force evacuations

ClimateWire News - Tue, 03/25/2025 - 6:12am
Experts blamed dry weather and dried-up fallen leaves on the ground in the forest as likely causes of the wildfires in Okayama and Imabari.

Decoding a medieval mystery manuscript

MIT Latest News - Tue, 03/25/2025 - 12:00am

Two years ago, MIT professor of literature Arthur Bahr had one of the best days of his life. Sitting in the British Library, he was allowed to page through the Pearl-Manuscript, a singular bound volume from the 1300s containing the earliest versions of the masterly medieval poem “Pearl,” the famous tale “Sir Gawain and the Green Knight,” and two other poems.

Today, “Sir Gawain and the Green Knight” is commonly read in high school English classes. But it probably would have been lost to history without the survival of the Pearl-Manuscript, like the other works in the same volume. As it stands, no one knows who authored these texts. But one thing is clear: the surviving manuscript is a carefully crafted volume, with bespoke illustrations and the skilled use of parchment. This book is its own work of art.

“The Pearl-Manuscript is just as extraordinary and unusual and unexpected as the poems it contains,” Bahr says of the document, whose formal name is “British Library MS Cotton Nero A X/2.”

Bahr explores these ideas in a new book, “Chasing the Pearl-Manuscript: Speculation, Shapes, Delight,” published this month by the University of Chicago Press. In it, Bahr combines his deep knowledge of the volume’s texts with detailed examination of its physical qualities — thanks to technologies such as spectroscopy, which has revealed some manuscript secrets, as well as the good, old-fashioned scrutiny Bahr gave the book in person.

“My argument is that this physical object adds up to more than the sum of its parts, through its creative interplay of text, image, and materials,” Bahr says. “It is a coherent volume that evokes the concerns of the poems themselves. Most manuscripts are constructed in utilitarian ways, but not this one.”

Ode to the most beautiful poem

Bahr first encountered “Pearl” as an undergraduate at Amherst College, in a course taught by medievalist Howell D. Chickering. The poem is an intricate examination of Christian ethics; a father, whose daughter has died, dreams he is discussing the meaning of life with her.

“It is the most beautiful poem I have ever read,” Bahr says. “It blew me away, for its formal complexity, and for the really poignant human drama.” He adds: “It’s in some sense why I’m a medievalist.”

And since Bahr’s first book, “Fragments and Assemblages,” studies how medieval bound volumes were often collections of disparate documents, it was natural for him to apply this scholarly lens to the Pearl manuscript as well.

Most scholars think the Pearl manuscript has a single author — although we cannot be certain. After beginning with “Pearl,” the manuscript follows with two other poems, “Cleanness” and “Patience.” Closing the volume, “Sir Gawain and the Green Knight” is an eerie, surreal tale of courage and chivalry set in the (possibly fictional) court of King Arthur.

In the book, Bahr finds the four texts to be thematically linked, analyzing the “connective tissue” through which the “manuscript starts to cohere into a wrought, imperfect, temporally layered whole,” as he writes. Some of these links are broad, including recurring “challenges to our speculative faculties”; the works are full of seeming paradoxes and dreamscapes that test the reader’s interpretive capacity.

There are other ways the text seem aligned. “Pearl” and “Sir Gawain and the Green Knight” each have 101 stanzas. The texts have numerically consistent structures, in the case of “Pearl” based around the number 12. All but one of its stanzas has 12 lines (and Bahr suspects this imperfection is intentional, like a fine rug with a deliberate flaw, which may be the case for the “extra” 101st stanza). There are 36 lines per page. And from examining the manuscript in person, Bahr found 48 places with decorated initials, although we do not know whose.

“The more you look, the more you find,” Bahr says.

Materiality matters

Some of our knowledge about the Pearl-Manuscript is quite new: Spectroscopy has revealed that the volume originally had simple line drawings, which were later filled in with colored ink.

But there is no substitute for reading books in person. That took Bahr to London in 2023, where he was permitted an extended look at the Pearl-Manuscript in the flesh. Far from being a formality, that gave Bahr new insights.

For instance: The Pearl-Manuscript is written on parchment, which is animal skin. At a key point in the “Patience” poem, a reworking of the tale of Jonah and the whale, the parchment has been reversed, so that the “hair” side of the material faces up, rather than the “flesh” side; it is the only case of this in the manuscript.

“When you’re reading about Jonah being swallowed by the whale, you feel the hair follicles when you wouldn’t expect to,” Bahr says. “At precisely the moment when the poem is thematizing an unnatural reversal of inside and outside, you are feeling the other side of another animal.”

He adds: “The act of touching the Pearl-Manuscript really changed how I think this poem would have worked for the medieval reader.” In this vein, he says, “Materiality matters. Screens are enabling, and without the digital facsimile I could not have written this book, but they cannot ever replace the original. The ‘Patience’ chapter reinforces that.”

Ultimately, Bahr thinks the Pearl-Manuscript buttresses his view in the “Fragments and Assemblages” book, that the medieval reading experience was often bound up with the way volumes were physically constructed.

“My argument in ‘Fragments and Assemblages’ was that medieval readers and book constructors thought in a serious and often sophisticated way about how the material construction and the selection of the texts into a physical object made a difference — mattered — and had the potential to change the meanings of the texts,” he says.

Good grade on the group project

“Chasing the Pearl-Manuscript” has received praise from other scholars. Jessica Brantley, professor and chair of the English Department at Yale University, has said that Bahr “offers an adventurous multilayered reading of both text and book and provides an important reinterpretation of the codex and its poems.”

Daniel Wakelin of Oxford University has said that Bahr “sets out an authoritative reading of these poems” and presents “a bold model for studying material texts and literary works together.”

For his part, Bahr hopes to appeal to an array of readers, just as his courses on medieval literature appeal to students with an array of intellectual interests. In the making of his book, Bahr also credits two MIT students, Kelsey Glover and Madison Sneve, who helped the project through the Undergraduate Research Opportunities Program (UROP), studying the illustrations and distinctive manuscript markings, among other things.

“It’s a very MIT kind of poem in the sense that not only is the author, or authors, obsessed with math and geometry and numbers and proportion, they are also obsessed with artifact construction, with architectural details and physical craft,” Bahr says. “There’s a very ‘mens et manus’ quality to the poems that’s reflected in the manuscript,” he says, referring to MIT’s motto, “mind and hand.” “I think helps explain why these extraordinary MIT students helped me so much.”

Scene at MIT: Artfinity brings artistic celebration to campus

MIT Latest News - Tue, 03/25/2025 - 12:00am

The MIT campus came alive with artistic energy on March 13 as Artfinity — the Institute's new festival celebrating creativity and community — took over multiple venues with interactive experiences, exhibitions, and performances.

Artfinity participants created their own paths through interconnected artistic encounters across campus, exploring everything from augmented reality (AR) experiences in the Infinite Corridor to innovative musical performances at the Media Lab. The events were designed to build upon each other, allowing visitors to flow naturally between locations while experiencing a range of creative expressions.

Daytime offerings included several exhibitions: Coloring with Wide Tim at the Welcome Center; “Golden Cargo: Conquest of the Tropics” at the ACT Gallery, examining the complex history of the United Fruit Company; two exhibitions at the List Visual Arts Center — “List Projects 31: Kite” and “Pedro Gómez-Egaña: The Great Learning”; and "Mission Control" at the Media Lab. Throughout the day, the “Layers of Place” AR experience revealed hidden histories and perspectives on the pillars of Building 7, “The Alchemist” sculpture, and the Infinite Corridor.

The MIT Museum served as the hub for the evening with its After Dark series, featuring a talk on technology in art by the Media Lab’s Critical Matter group director and award-winning designer Behnaz Farahi (whose large projection on MIT's dome, “Gaze to the Stars,” was on view later that evening), alongside galleries showcasing faculty works, including Rania Ghosn's “Cosmograph,” Azra Akšamija's “Hallucinating Traditions,” and other new exhibitions featuring work from the Media Lab. Throughout the museum, visitors engaged with interactive activities ranging from flash portrait sessions to textile design.

As evening progressed, the campus transformed with performances and installations. The Media Lab hosted Moving Music, premiering two unusual works: “Here...NOW” by Ana Schon and “MAICE” by Tod Machover, a new piece for renowned marimba player Ji Hye Jung. Large-scale projections also illuminated campus buildings, including “Creative Lumens,“ where students transformed the exteriors of the new Linde Music Building, the MIT Chapel, and Zesiger Center with vibrant projections.

Additional events that evening included Argus Installation, exploring the interplay of light and hand-blown glass at the MIT Museum Studio; the Welcome Center's speed networking for artists and creatives followed by All Our Relations, where MIT's Indigenous community brought native and non-native people together for song, dance, and story; and a film screening at the Open Space Screen, offering a behind-the-scenes look at Laura Anderson Barbata's “Intervention: Ocean Blues.”

Attendance topped 1,000 on campus that evening, with many more viewing the large-scale art projections as passersby. Artfinity continues through May 2 and will have featured more than 80 free performing and visual arts events celebrating creativity and community at MIT.

Basketball analytics investment is key to NBA wins and other successes

MIT Latest News - Tue, 03/25/2025 - 12:00am

If you filled out a March Madness bracket this month, you probably faced the same question with each college match-up: What gives one team an edge over another? Is it a team’s record through the regular season? Or the chemistry among its players? Maybe it’s the experience of its coaching staff or the buzz around a top scorer.

All of these factors play some role in a team’s chance to advance. But according to a new study by MIT researchers, there’s one member who consistently boosts their team’s performance: the data analyst.

The new study, which was published this month in the Journal of Sports Economics, quantifies the influence of basketball analytics investment on team performance. The study’s authors looked in particular at professional basketball and compared the  investment in data analytics on each NBA team with the team’s record of wins over 12 seasons. They found that indeed, teams that hired more analytics staff, and invested more in data analysis in general, tended to win more games.

Analytics department headcount had a positive and statistically significant effect on team wins even when accounting for other factors such as a team’s roster salary, the experience and chemistry among its players, the consistency of its coaching staff, and player injuries through each season. Even with all of these influences, the researchers found that the depth of a team’s data analytics bench, so to speak, was a consistent predictor of the team’s wins.

What’s more, they were able to quantify basketball analytics’ value, based on their impact on team wins. They found that for every four-fifths of one data analyst, a team gains one additional win in a season. Interestingly, a team can also gain one additional win by increasing its roster salary by $9.6 million. One way to read this is that one data analyst’s impact is worth at least $9 million.

“I don’t know of any analyst who’s being paid $9 million,” says study author Henry Wang, a graduate student in the MIT Sports Lab. “There is still a gap between how the player is being valued and how the analytics are being valued."

While the study focuses on professional basketball, the researchers say the findings are relevant beyond the NBA. They speculate that college teams that make use of data analytics may have an edge over those who don’t. (Take note, March Madness fans.) And the same likely goes for sports in general, along with any competitive field.

“This paper hits nicely not just in sports but beyond, with this question of: What is the tangible impact of big data analytics?” says co-author Arnab Sarker PhD ’25, a recent doctoral graduate of MIT’s Institute for Data, Systems and Society (IDSS). “Sports are a really nice, controlled place for analytics. But we’re also curious to what extent we can see these effects in general organizational performance.”

The study is also co-authored by Anette “Peko” Hosoi, the Pappalardo Professor of Mechanical Engineering at MIT.

Data return

Across the sports world, data analysts have grown in number and scope over the years. Sports analytics’ role in using data and stats to improve team performance was popularized in 2011 with the movie “Moneyball,” based on the 2003 book “Moneyball: The Art of Winning an Unfair Game” by Michael Lewis, who chronicled the 2002 Oakland Athletics and general manager Billy Beane’s use of baseball analytics to win games against wealthier Major League Baseball teams.

Since then, data analysis has expanded to many other sports, in an effort to make use of the varied and fast-paced sources of data, measurements, and statistics available today. In basketball, analysts can take on many roles, using data, for instance, to optimize a player’s health and minimize injury risk, and to predict a player’s performance to inform draft selection, free agency acquisition, and contract negotiations.

A data analyst’s work can also influence in-game strategy. Case in point: Over the last decade, NBA teams have strategically chosen to shift to shooting longer-range three-pointers, since Philadelphia 76ers President of Basketball Operations Daryl Morey SM ’00 determined that statistically, shooting more three-pointers wins more games. Today, each of the 30 NBA teams employs at least one basketball analytics staffer. And yet, while a data analyst’s job is entirely based on data, there is not much data on the impact of analysts themselves.

“Teams and leagues are spending millions of dollars on embracing analytical tools without a real sense of return-on-investment,” Wang notes.

Numbers value

The MIT researchers aimed in their new study to quantify the influence of NBA team analysts, specifically on winning games. To do so, they looked to major sources of sports data such as ESPN.com, and NBAstuffer.com, a website that hosts a huge amount of stats on NBA games and team stats, including hired basketball analytics staff, that the website’s managers compile based on publicly available data, such as from official team press releases and staff directories, as well as LinkedIn and X profiles, and news and industry reports.

For their new study, Wang and his colleagues gathered data on each of the 30 NBA teams, over a period from 2009 to 2023, 2009 being the year that NBAstuffer.com started compiling team data. For every team in each season during this period, the researchers recorded an “analyst headcount,” meaning the number of basketball operations analytics staff employed by a team. They considered an analyst to be data analysts, software engineers, sports scientists, directors of research, and other technical positions by title, but also staff members who aren’t formally analysts but may be known to be particularly active in the basketball analytics community. In general, they found that in 2009, a total of 10 data analysts were working across the NBA. In 2023, that number ballooned to 132, with some teams employing more analysts than others.

“What we’re trying to measure is a team’s level of investment in basketball analytics,” Wang explains. “The best measure would be if every team told us exactly how much money they spent every year on their R&D and data infrastructure and analysts. But they’re not going to do that. So headcount is the next best thing.”

In addition to analytics headcount, the researchers also compiled data on other win-influencing variables, such as roster salary (Does a higher-paid team win more games?), roster experience (Does a team with more veterans win more games?), consistent coaching (Did a new coach shake up a team’s win record?) and season injuries (How did a team’s injuries affect its wins?). The researchers also noted “road back-to-backs,” or the number of times a team had to play consecutive away games (Does the wear and tear of constant travel impact wins?).

The researchers plugged all this data into a “two-way fixed effects” model to estimate the relative effect that each variable has on the number of additional games a team can win in a season.

“The model learns all these effects, so we can see, for instance, the tradeoff between analyst and roster salary when contributing to win total,” Wang explains.

Their finding that teams with a higher analytics headcount tended to win more games wasn’t entirely surprising.

“We’re still at a point where the analyst is undervalued,” Wang says. “There probably is a sweet spot, in terms of headcount and wins. You can’t hire 100 analysts and expect to go in 82-and-0 next season. But right now a lot of teams are still below that sweet spot, and this competitive advantage that analytics offers has yet to be fully harvested.”

Rising temperatures reduce the predictability of agricultural drought

Nature Climate Change - Tue, 03/25/2025 - 12:00am

Nature Climate Change, Published online: 25 March 2025; doi:10.1038/s41558-025-02290-5

Drought predictability has a large impact on climate adaptation plans, but its future changes are often unknown. A drought predictability model reveals that increases in global temperatures of 2 °C or 3 °C would cause a significant (p < 0.1) decrease in the dynamic predictability of agricultural drought in more than 70% of the global land area.

230 Protects Users, Not Big Tech

EFF: Updates - Mon, 03/24/2025 - 3:22pm

Once again, several Senators appear poised to gut one of the most important laws protecting internet users - Section 230 (47 U.S.C. § 230)

Don’t be fooled - many of Section 230’s detractors claim that this critical law only protects big tech. The reality is that Section 230 provides limited protection for all platforms, though the biggest beneficiaries are small platforms and users. Why else would some of the biggest platforms be willing to endorse a bill that guts the law? In fact, repealing Section 230 would only cement the status of Big Tech monopolies.

As EFF has said for years, Section 230 is essential to protecting individuals’ ability to speak, organize, and create online. 

Congress knew exactly what Section 230 would do – that it would lay the groundwork for speech of all kinds across the internet, on websites both small and large. And that’s exactly what has happened.  

Section 230 isn’t in conflict with American values. It upholds them in the digital world. People are able to find and create their own communities, and moderate them as they see fit. People and companies are responsible for their own speech, but (with narrow exceptions) not the speech of others. 

The law is not a shield for Big Tech. Critically, the law benefits the millions of users who don’t have the resources to build and host their own blogs, email services, or social media sites, and instead rely on services to host that speech. Section 230 also benefits thousands of small online services that host speech. Those people are being shut out as the bill sponsors pursue a dangerously misguided policy.  

If Big Tech is at the table in any future discussion for what rules should govern internet speech, EFF has no confidence that the result will protect and benefit internet users, as Section 230 does currently. If Congress is serious about rewriting the internet’s speech rules, it must spend time listening to the small services and everyday users who would be harmed should they repeal Section 230.  

Section 230 Protects Everyday Internet Users 

There’s another glaring omission in the arguments to end Section 230: how central the law is to ensuring that every person can speak online, and that Congress or the Administration does not get to define what speech is “good” and “bad”.   

Let’s start with the text of Section 230. Importantly, the law protects both online services and users. It says that “no provider or user shall be treated as the publisher” of content created by another. That's in clear agreement with most Americans’ belief that people should be held responsible for their own speech—not that of others.   

Section 230 protects individual bloggers, anyone who forwards an email, and social media users who have ever reshared or retweeted another person’s content online. Section 230 also protects individual moderators who might delete or otherwise curate others’ online content, along with anyone who provides web hosting services

As EFF has explained, online speech is frequently targeted with meritless lawsuits. Big Tech can afford to fight these lawsuits without Section 230. Everyday internet users, community forums, and small businesses cannot. Engine has estimated that without Section 230, many startups and small services would be inundated with costly litigation that could drive them offline. Even entirely meritless lawsuits cost thousands of dollars to fight, and often tens or hundreds of thousands of dollars.

Deleting Section 230 Will Create A Field Day For The Internet’s Worst Users  

Section 230’s detractors say that too many websites and apps have “refused” to go after “predators, drug dealers, sex traffickers, extortioners and cyberbullies,” and imagine that removing Section 230 will somehow force these services to better moderate user-generated content on their sites.  

These arguments fundamentally misunderstand Section 230. The law lets platforms decide, largely for themselves, what kind of speech they want to host, and to remove speech that doesn’t fit their own standards without penalty. 

 If lawmakers are legitimately motivated to help online services root out unlawful activity and terrible content appearing online, the last thing they should do is eliminate Section 230. The current law strongly incentivizes websites and apps, both large and small, to kick off their worst-behaving users, to remove offensive content, and in cases of illegal behavior, work with law enforcement to hold those users responsible. 

If Congress deletes Section 230, the pre-digital legal rules around distributing content would kick in. That law strongly discourages services from moderating or even knowing about user-generated content. This is because the more a service moderates user content, the more likely it is to be held liable for that content. Under that legal regime, online services will have a huge incentive to just not moderate and not look for bad behavior. This would result in the exact opposite of their goal of protecting children and adults from harmful content online.

Mathematicians uncover the logic behind how people walk in crowds

MIT Latest News - Mon, 03/24/2025 - 3:00pm

Next time you cross a crowded plaza, crosswalk, or airport concourse, take note of the pedestrian flow. Are people walking in orderly lanes, single-file, to their respective destinations? Or is it a haphazard tangle of personal trajectories, as people dodge and weave through the crowd?

MIT instructor Karol Bacik and his colleagues studied the flow of human crowds and developed a first-of-its-kind way to predict when pedestrian paths will transition from orderly to entangled. Their findings may help inform the design of public spaces that promote safe and efficient thoroughfares.

In a paper appearing this week in the Proceedings of the National Academy of Sciences, the researchers consider a common scenario in which pedestrians navigate a busy crosswalk. The team analyzed the scenario through mathematical analysis and simulations, considering the many angles at which individuals may cross and the dodging maneuvers they may make as they attempt to reach their destinations while avoiding bumping into other pedestrians along the way.

The researchers also carried out controlled crowd experiments and studied how real participants walked through a crowd to reach certain locations. Through their mathematical and experimental work, the team identified a key measure that determines whether pedestrian traffic is ordered, such that clear lanes form in the flow, or disordered, in which there are no discernible paths through the crowd. Called “angular spread,” this parameter describes the number of people walking in different directions.

If a crowd has a relatively small angular spread, this means that most pedestrians walk in opposite directions and meet the oncoming traffic head-on, such as in a crosswalk. In this case, more orderly, lane-like traffic is likely. If, however, a crowd has a larger angular spread, such as in a concourse, it means there are many more directions that pedestrians can take to cross, with more chance for disorder.

In fact, the researchers calculated the point at which a moving crowd can transition from order to disorder. That point, they found, was an angular spread of around 13 degrees, meaning that if pedestrians don’t walk straight across, but instead an average pedestrian veers off at an angle larger than 13 degrees, this can tip a crowd into disordered flow.

“This all is very commonsense,” says Bacik, who is a instructor of applied mathematics at MIT. “The question is whether we can tackle it precisely and mathematically, and where the transition is. Now we have a way to quantify when to expect lanes — this spontaneous, organized, safe flow — versus disordered, less efficient, potentially more dangerous flow.”

The study’s co-authors include Grzegorz Sobota and Bogdan Bacik of the Academy of Physical Education in Katowice, Poland, and Tim Rogers at the University of Bath in the United Kingdom.

Right, left, center

Bacik, who is trained in fluid dynamics and granular flow, came to study pedestrian flow during 2021, when he and his collaborators looked into the impacts of social distancing, and ways in which people might walk among each other while maintaining safe distances. That work inspired them to look more generally into the dynamics of crowd flow.

In 2023, he and his collaborators explored “lane formation,” a phenomenon by which particles, grains, and, yes, people have been observed to spontaneously form lanes, moving in single-file when forced to cross a region from two opposite directions. In that work, the team identified the mechanism by which such lanes form, which Bacik sums up as “an imbalance of turning left versus right.” Essentially, they found that as soon as something in a crowd starts to look like a lane, individuals around that fledgling lane either join up, or are forced to either side of it, walking parallel to the original lane, which others can follow. In this way, a crowd can spontaneously organize into regular, structured lanes.

“Now we’re asking, how robust is this mechanism?” Bacik says. “Does it only work in this very idealized situation, or can lane formation tolerate some imperfections, such as some people not going perfectly straight, as they might do in a crowd?”

Lane change

For their new study, the team looked to identify a key transition in crowd flow: When do pedestrians switch from orderly, lane-like traffic, to less organized, messy flow? The researchers first probed the question mathematically, with an equation that is typically used to describe fluid flow, in terms of the average motion of many individual molecules.

“If you think about the whole crowd flowing, rather than individuals, you can use fluid-like descriptions,” Bacik explains. “It’s this art of averaging, where, even if some people may cross more assertively than others, these effects are likely to average out in a sufficiently large crowd. If you only care about the global characteristics like, are there lanes or not, then you can make predictions without detailed knowledge of everyone in the crowd.”

Bacik and his colleagues used equations of fluid flow, and applied them to the scenario of pedestrians flowing across a crosswalk. The team tweaked certain parameters in the equation, such as the width of the fluid channel (in this case, the crosswalk), and the angle at which molecules (or people) flowed across, along with various directions that people can “dodge,” or move around each other to avoid colliding.

Based on these calculations, the researchers found that pedestrians in a crosswalk are more likely to form lanes, when they walk relatively straight across, from opposite directions. This order largely holds until people start veering across at more extreme angles. Then, the equation predicts that the pedestrian flow is likely to be disordered, with few to no lanes forming.

The researchers were curious to see whether the math bears out in reality. For this, they carried out experiments in a gymnasium, where they recorded the movements of pedestrians using an overhead camera. Each volunteer wore a paper hat, depicting a unique barcode that the overhead camera could track.

In their experiments, the team assigned volunteers various start and end positions along opposite sides of a simulated crosswalk, and tasked them with simultaneously walking across the crosswalk to their target location without bumping into anyone. They repeated the experiment many times, each time having volunteers assume different start and end positions. In the end, the researchers were able to gather visual data of multiple crowd flows, with pedestrians taking many different crossing angles.

When they analyzed the data and noted when lanes spontaneously formed, and when they did not, the team found that, much like the equation predicted, the angular spread mattered. Their experiments confirmed that the transition from ordered to disordered flow occurred somewhere around the theoretically predicted 13 degrees. That is, if an average person veered more than 13 degrees away from straight ahead, the pedestrian flow could tip into disorder, with little lane formation. What’s more, they found that the more disorder there is in a crowd, the less efficiently it moves.

The team plans to test their predictions on real-world crowds and pedestrian thoroughfares.

“We would like to analyze footage and compare that with our theory,” Bacik says. “And we can imagine that, for anyone designing a public space, if they want to have a safe and efficient pedestrian flow, our work could provide a simpler guideline, or some rules of thumb.”

This work is supported, in part, by the Engineering and Physical Sciences Research Council of UK Research and Innovation.

Biogen to consolidate operations in MIT’s first Kendall Common building

MIT Latest News - Mon, 03/24/2025 - 7:30am

Over the course of nearly five decades, Biogen has played a major role in catalyzing and shaping Kendall Square in Cambridge, Massachusetts, now heralded as the “most innovative square mile on the planet.” Today, Biogen announced its decision to centralize operations in a new facility at 75 Broadway in MIT’s Kendall Common development. The move, which will take place in 2028, highlights the company’s commitment to Cambridge and the regional innovation ecosystem — a wellspring of biomedical advances.

“It’s fitting that Biogen — a company with such close ties to people at MIT — will make Kendall Common’s first building its new home,” says MIT President Sally Kornbluth. “The motto of Kendall Square might as well be ‘talent in proximity’ and Biogen’s decision to intensify its presence here promises great things for the whole ecosystem. To achieve this milestone on the occasion of the company’s 50th anniversary is especially meaningful. We are grateful to Chris Viehbacher, president and chief executive officer of Biogen, for his keen vision of the future and his ongoing commitment to Cambridge and Kendall Square.”

The approximately 580,000-square-foot facility will integrate Biogen’s research and development teams together with its global and North American commercialization organizations. The building will incorporate advanced conservation, efficiency, and sustainable design elements.

“Biogen’s story in Kendall Square is unlike any other,” says Anantha Chandrakasan, MIT’s chief innovation and strategy officer. “Institute Professor Phil Sharp’s early work in genetics and molecular biology and his co-founding of Biogen in 1978 set life sciences on a bold trajectory in the region — and in the world. MIT’s intertwined history with Biogen has benefited society through significant research advancements — from classroom and lab to market — in treating multiple sclerosis, Parkinson’s disease, and other neuromuscular disorders. I’m so pleased that our fruitful partnership will continue.”

The new building, designed by Elkus-Manfredi Architects, will activate the corner at 75 Broadway, and protect and accentuate the abutting 6th Street Walkway — a favorite tree-lined path for residents and Kendall employees alike. A joint venture partnership between the MIT Investment Management Company and BioMed Realty, a Blackstone Real Estate portfolio company, is facilitating advancement of the project.

“Helping to ensure that Biogen stays in Cambridge was very important to us,” says Patrick Rowe, senior vice president in MIT’s real estate group, which is part of the Institute’s investment management company. “The company’s nearly 50-year history is a foundational component of the Kendall Square innovation ecosystem.”

“We are thrilled to partner with MIT in the development and activation of this world-class lab and office asset in the heart of Kendall Square,” says Bill Kane, BioMed Realty’s president of East Coast and U.K. markets. “75 Broadway will provide mission-critical infrastructure to Biogen that enables the development of the next generation of life-saving medicines and therapies.”

Ultimately, the 10-acre Kendall Common development will include eight buildings for residential, office, lab, retail, and community uses. The project’s 10-year review process and federal agreement led to the recent opening of the MIT-built John A. Volpe National Transportation Systems Center.

More Countries are Demanding Back-Doors to Encrypted Apps

Schneier on Security - Mon, 03/24/2025 - 6:38am

Last month I wrote about the UK forcing Apple to break its Advanced Data Protection encryption in iCloud. More recently, both Sweden and France are contemplating mandating back doors. Both initiatives are attempting to scare people into supporting back doors, which are—of course—are terrible idea.

Also: “A Feminist Argument Against Weakening Encryption.”

Why Democrats joined Trump’s pipeline push

ClimateWire News - Mon, 03/24/2025 - 6:29am
The president resurrected ideas about bringing more gas into Northeastern states. It came as Democratic governors grapple with high energy prices.

Biden EPA official recused himself from green bank grant decisions

ClimateWire News - Mon, 03/24/2025 - 6:28am
The Trump administration has accused Jahi Wise of steering $5 billion to his former employer. But a new court filing shows he bowed out of the award process.

FEMA chief: ‘Abolish’ notorious denial letters to survivors

ClimateWire News - Mon, 03/24/2025 - 6:24am
Acting Administrator Cameron Hamilton said people who experience disasters need more clarity about how to get federal help.

Oregon mulls overhaul of wildfire standards for utilities

ClimateWire News - Mon, 03/24/2025 - 6:23am
A proposal that would force investor-owned utilities to submit wildfire plans is under attack for what critics say is its focus on shielding companies from lawsuits.

British Columbia plans to end carbon tax paid by consumers

ClimateWire News - Mon, 03/24/2025 - 6:22am
Canada's third-most-populous province is following Prime Minister Mark Carney, who ended a federal tax on gasoline, diesel and natural gas.

A growing industry bets on the ocean to capture carbon

ClimateWire News - Mon, 03/24/2025 - 6:21am
But the field remains rife with debate over the consequences if the strategies are deployed at large scale and over the exact benefits for the climate.

World Glacier Day: Hikers trek blue ice of Argentina’s Perito Moreno

ClimateWire News - Mon, 03/24/2025 - 6:20am
Declared by the U.N. General Assembly in 2022, the March 21 celebration aims to promote the conservation of glaciers, a crucial source of drinking water.

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