ScienceAlert reports:
In the molten ocean of iron churning in Earth's outer core, a section deep beneath the Pacific Ocean suddenly reversed direction and started moving eastward against the planet's usual westward flow. This happened in 2010, according to satellite measurements of Earth's magnetic field, and scientists are still trying to figure out what caused it... [I]t seemed to have a large, wave-like structure — as though a chunk of molten core material suddenly thought better of where it wanted to go, surging in the other direction... This finding suggests that there are processes that can influence it strongly enough to alter its behavior in bulk — and that our planet's interior may be more dynamic and variable than we thought.
A new analysis captures what we know so far — and


"It's from the roiling, molten, conducting metal at Earth's heart that the planetary magnetic field is generated... vital to our continued existence. It helps keep the atmosphere we breathe in and harmful cosmic radiation out."

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"Around 570 cables (plus a further 80 planned) carry between 95% and 99% of the world's intercontinental telecommunications data," reports CNN (since fiber cables offer speeds of terabits per second, carry much more data than satellite links). And "networks of green energy cables carrying electricity are also starting to sprawl across the world's seabeds."

Now to protect them, the U.S., Australia and the U.K. "are planning to develop new unmanned undersea vehicles" as part of their trilateral security partnership.

Western governments see a growing risk of Russian and Chinese sabotage of undersea cables and are also concerned that Iran may seek to exploit the many data networks running through the shallow waters of the Persian Gulf. The "seabed is a battlefield" said Australia's Defence Minister, Richard Marles, in Singapore, calling for tougher action against so-called shadow-fleet vessels... The programme will improve the three nations' reconnaissance and strike capabilities, "and bolster superiority in anti-submarine and anti-surface warfare," as well as mine countermeasures, [according to a statement from their trilateral AUKUS partnership]... The new AUKUS project will sharpen all three countries' ability to respond to threats, including those targeting underwater cables and pipelines, through a range of "cutting edge sensors and weapons systems for undersea drones," UK Defence Secretary John Healey said.

Marles said undersea internet cables — "the arteries of modern civilization" — were being cut at an unprecedented rate, with island nations like Australia acutely vulnerable. "Over the past 18 months, we have witnessed a series of attacks against subsea critical infrastructure at a scale and frequency that is historically unprecedented," he said. The UK government has also highlighted the vulnerability of the world's digital highways. "Every international payment, every cross-border trade executed in milliseconds, every flow of data between businesses here in the UK and markets overseas — all travel along the seabed," Telecoms Minister Liz Lloyd said Friday... Last month, the UK said it had tracked three Russian submarines covertly surveying undersea cables in the north Atlantic... A UK parliamentary inquiry warned last year that UK infrastructure might be targeted in a crisis, adding it was "not confident that the UK could prevent such attacks or recover within an acceptable time period."
The UK Navy is already exploring the creation of a hybrid force that incorporates the widespread use of underwater drones to combat Russian threats in the Atlantic.

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A historian-turned-software engineer warns that "so little is ever written down" by professional programmers in a new article for Fast Company:


Perhaps there's an early design doc, but then it turns out that everything was substantially revised before work began. Maybe there are a few wiki pages explaining known issues, some of which were solved a long time ago and others that have been left to molder in the codebase. Somebody might have left a comment in the code itself, but typically it's a warning not to change something or else something else will break... Software engineering has an ambivalent relationship with documentation. Everyone agrees documentation matters in theory, but in practice it's inconsistent, outdated, or missing entirely. Part of that is simple inertia. Writing documentation is usually less interesting than writing the code itself. But it's also ideological. The Agile movement emerged in part as a reaction against the heavily documented Waterfall methodology, and one of Agile's core values explicitly prioritizes "working software over comprehensive documentation." In escaping bureaucratic overdocumentation, the industry also normalized underdocumentation.

High turnover at software jobs always brings "a constant drain of domain knowledge." And he's he's skeptical that generative AI will be able to fill in those gaps:

[H]aving it generate documentation on the codebase itself might sound like a solution to the absence of other written information. LLMs can certainly summarize code back to you. But hold up with that idea. Beyond hallucinations, there's a deeper problem: Writing documentation is itself part of the thinking process. Whether I'm writing history or software, putting an approach into words helps refine it before I sink hours into implementation. Documentation also captures intent. An LLM may be able to summarize what a codebase does, but it cannot reliably explain why a developer chose one approach over another, or what trade-offs shaped that decision...

An LLM can read code that I've written. It might even scan a large codebase and accurately summarize what it's doing. But it can't assess authorial intent.



Thanks to long-time Slashdot reader smooth wombat for sharing the article.

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Axios reports:

The American Federation of Teachers, the second-largest teachers' union in the U.S., released a 10-point plan to introduce AI and screen-time guardrails in classrooms. The plan would limit AI use and ban screens for students in prekindergarten through second grade "unless there is a compelling reason," such as supporting students with special needs.

The teacher union's president Randi Weingarten warned that young students "are drowning in tech," according to the New York Times, which reports the union president also "called on schools on Wednesday to stop giving digital devices like iPads to children in prekindergarten through second grade."

In a speech at the National Press Club in Washington, Weingarten also urged elementary schools to avoid using artificial intelligence tools like OpenAI's ChatGPT, Google's Gemini and Khan Academy's Khanmigo with children [and] called for new national privacy and safety standards for A.I. tools in all schools... "The work of teaching and learning in the earliest grades should be done without A.I."

The union's effort reflects a backlash among parents and educators against heavy use of school-issued laptops and apps. Some parents and nonprofit children's groups are also pushing back against campaigns by tech giants like Google and OpenAI to spread their A.I. products in schools... Weingarten said that the union was negotiating safety and privacy standards for A.I. use in schools with "our partners in the A.I. academy," and that Microsoft, OpenAI and Anthropic had agreed in principle to those standards.

Weingarten "laid out a plan for reorienting public schooling toward human abilities and student well-being," according to the article, calling it "a devices down, eyes up, hands-on strategy."

And meanwhile school cellphone bans are expanding into broader efforts to establish guardrails around AI in education and limit screen use, reports Axios. "At least 16 states — both red and blue — have introduced bills to limit classroom technology."


Schools Beyond Screens formed with fewer than a dozen parents in Los Angeles Unified School District last year, but the nonprofit has grown to include thousands of parents and educators nationwide, SBS policy director Kate Brody tells Axios... McPherson Middle School principal Inge Esping told Axios that the suspension rate at her Kansas school fell 70% after cellphones were banned in 2022. Students also started speaking more with one another and with teachers.

Thanks to long-time Slashdot reader theodp for sharing the article.

Read more of this story at Slashdot.

Facebook whistleblower Sarah Wynn-Williams was forced to sit in silence on stage at an event at Hay festival, after lawyers advised her not to speak because of ongoing legal action brought by Meta.

Wynn-Williams, whose bestselling memoir, Careless People, details her years working at Facebook, was due to appear in conversation with the investigative journalist Carole Cadwalladr and academic Tim Wu.

Instead, Wynn-Williams sat on stage for the duration of the hour-long discussion between Cadwalladr and Wu, without speaking or responding. She was unable even to nod or shake her head.

Introducing the panel, Cadwalladr said: "I think this might be a Hay first, in which we have an author in a hostage situation. Blink once if you can hear us, Sarah, twice if Zuckerberg is an asshole." [...]

During the event, Cadwalladr read a letter from Wynn-Williams' lawyers outlining the company's latest legal claims. The letter stated that, in March 2026, Meta filed a sanctions motion alleging that Wynn-Williams violates the emergency arbitration order "any time she appears in public in a place where she should know that her book is available for sale and her presence might draw attention to it".

Previously, previously, previously, previously, previously, previously, previously, previously, previously, previously.

Both sides can use each other’s expertise, Ukrainian president stresses; more Russian oil facilities burning after attacks. What we know on day 1,559

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France has requested an emergency meeting of the UN security council, after the Israeli military captured the medieval Beaufort castle

European leaders have condemned Israel’s expanding incursion into Lebanon, after its military captured the medieval Beaufort castle and Israel’s prime minister, Benjamin Netanyahu, vowed to push even deeper into the country.

France’s president Emmanuel Macron called for an end to fighting, saying “nothing justifies the major escalation under way in south Lebanon”. The country’s foreign minister, Jean-Noel Barrot, has requested a meeting of the UN security council for Monday.

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Lawyer and Trump admirer has risen rapidly in the polls and will face Iván Cepeda in election runoff in three weeks

The far-right lawyer Abelardo de la Espriella won the first round of Colombia’s presidential election on Sunday and will face senator Iván Cepeda, the candidate backed by leftwing president Gustavo Petro, in the runoff.

With 99.9% of ballots counted, the outsider and Donald Trump admirer Espriella secured 43.7% of the vote – just over 10.3m votes – compared with 40.9% (about 9.6m votes) for Cepeda, a philosopher and human rights activist who has served as a senator since 2014.

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Star says her older sister, an actor and film-maker, died ‘in her home, in nature, at peace’

Jamie Lee Curtis has announced the death of her sister, the actor Kelly Curtis, at the age of 69, describing her as “talented” and “jaw droppingly beautiful”.

Jamie Lee said her sister had died “in her home, in nature, at peace” on Saturday, having had roles in films including Trading Places (1983), in which the pair both appeared, Magic Sticks (1987) and The Devil’s Daughter (1991). No cause of death was given.

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uchi uchi has added a photo to the pool:

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uchi uchi has added a photo to the pool:

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Na de eerste ronde van de Colombiaanse presidentsverkiezingen zijn alleen de sociaaldemocraat Cepeda en de uiterst rechtse de la Espreilla nog over. Op 21 juni kiezen de Colombianen wie van de twee president wordt.

Ik ben bij mijn oude moeder in het verzorgingshuis. Ze is in een vrolijke bui en instrueert me wie ‘later’ wat moet krijgen.

Horizontaal: 1. Weggeefschaatser 6. Optimaal ongewoon 11. Drankje (3+5) 12. Zangvogels 13. Knoopmateriaal voor arme mensen 14. Van 2015 tot 2025 president van Polen 19.

Plaats de cijfers 1 tot en met 9 zo in het diagram dat elk cijfer precies één keer voorkomt in elke rij, kolom, de negen vetomrande 3x3 vakken, én de vier grijze 3x3 vakken.

iain.davidson100 has added a photo to the pool:

iain.davidson100 has added a photo to the pool:

iain.davidson100 has added a photo to the pool: