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arXivLabs: Experimenting with Community Collaboration

2025-05-06

arXivLabs is a framework for collaborators to build and share new arXiv features directly on the site. Individuals and organizations involved embrace arXiv's values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only partners with those who share them. Have an idea to improve the arXiv community? Learn more about arXivLabs.

(arxiv.org)

Development

Kissing Number Breakthrough: A New Approach to an Old Problem

2025-01-16

Kissing Number Breakthrough: A New Approach to an Old Problem

For over three centuries, mathematicians have grappled with the kissing number problem: how many identical spheres can touch a central sphere without overlapping? While the answer is 12 in three dimensions, higher dimensions remain a mystery. Recently, MIT undergraduate Anqi Li and Professor Henry Cohn devised a novel approach, abandoning traditional symmetry assumptions. Their unconventional, asymmetric strategy improved estimates for the kissing number in dimensions 17 through 21, marking the first progress in these dimensions since the 1960s. This breakthrough challenges established methods based on information theory and error-correcting codes, opening new avenues for solving this enduring mathematical puzzle.

(www.quantamagazine.org)

Mathematics Geometry Higher Dimensions

Onit: Your Local AI Chat Assistant

2025-01-24

Onit: Your Local AI Chat Assistant

Onit is an open-source AI chat assistant that lives on your desktop! It's like ChatGPT Desktop, but with local mode and support for multiple model providers (Anthropic, Google AI, xAI, etc.). Think of it as Cursor Chat, but available everywhere on your computer, not just in your IDE. Key features include local mode (via Ollama), multi-provider support (OpenAI, Anthropic, xAI, etc.), file uploads, chat history, and customizable shortcuts. Future plans include autocontext, local RAG, and local typeahead. Onit prioritizes universal access, provider freedom, a local-first approach, customizability, and extensibility.

(github.com)

AI AI assistant local mode multi-model support

CDC Halts Collaboration with WHO, Immediately

2025-01-27

CDC Halts Collaboration with WHO, Immediately

The U.S. Centers for Disease Control and Prevention (CDC) has abruptly ordered an immediate end to all collaborations with the World Health Organization (WHO), sending shockwaves through the global public health community. This isn't a phased withdrawal; it's an immediate and complete cessation of all interactions, including work with technical working groups, coordinating centers, and advisory boards. Experts express deep concern, warning that this will severely hamper efforts to investigate and control outbreaks like the Marburg virus and mpox, potentially jeopardizing global health security. While President Trump had previously issued an executive order to begin the U.S. withdrawal from WHO, this sudden action is far more drastic and unexpected, sparking widespread worry and criticism.

(apnews.com)

Tech Global Public Health

Algebraic Effects: From Research to Real-World Software Development

2025-09-07

Algebraic Effects: From Research to Real-World Software Development

Algebraic effects are no longer a purely academic concept; they're a powerful tool for real-world software development. This article explores their key advantages: improved code testability, enhanced visibility into code behavior, and the ability to create custom control flow abstractions. Unlike monads, algebraic effects offer a more intuitive approach to managing side effects, yielding immediate benefits. Using Flix, a language with built-in support for algebraic effects, the article demonstrates practical applications, including handling exceptions, asynchronous operations, coroutines, generators, and backtracking search, culminating in a real-world AI movie recommendation app.

(www.relax.software)

Development

15-Year-Old Discovers Zero-Click Deanonymization Exploit Leveraging Cloudflare Cache

2025-01-21

15-Year-Old Discovers Zero-Click Deanonymization Exploit Leveraging Cloudflare Cache

A 15-year-old high school student, Daniel, discovered a critical zero-click deanonymization attack exploiting Cloudflare's caching mechanism. This vulnerability allows attackers to pinpoint the location of users within a 250-mile radius by sending a malicious payload to vulnerable applications like Signal, Discord, and hundreds of others. The attack requires no user interaction and can even be achieved via push notifications. Daniel developed a tool, Cloudflare Teleport, to demonstrate the exploit. While he responsibly disclosed the vulnerability, responses from affected companies were largely unsatisfactory. This highlights the potential security risks inherent in CDN caching and underscores the importance of user privacy awareness.

(gist.github.com)

Tech vulnerability

Chips from Supernovae: Solving Microchip Manufacturing Challenges with Astrophysics

2025-03-05

Chips from Supernovae: Solving Microchip Manufacturing Challenges with Astrophysics

This article recounts how the author and their team leveraged their understanding of supernova explosions to solve a long-standing tin debris problem in extreme ultraviolet lithography. By drawing an analogy between the shockwaves and plasma debris from supernovae and their EUV light source, they ingeniously used a hydrogen gas flow to clear away tin debris, thus improving the stability and reliability of the EUV source and making a significant contribution to advanced chip manufacturing. This story showcases the magic of interdisciplinary knowledge and the driving force of basic scientific research on practical applications.

(spectrum.ieee.org)

Tech extreme ultraviolet lithography supernova

146,000-Year-Old Harbin Skull Identified as Denisovan

2025-06-22

146,000-Year-Old Harbin Skull Identified as Denisovan

A 146,000-year-old skull unearthed in Harbin, China, has been confirmed as belonging to a Denisovan through protein analysis. Initially classified as a new species, *Homo longi*, the remarkably well-preserved skull yielded enough ancient proteins to match those of known Denisovans. This discovery not only reveals what Denisovans looked like but also unveils a fascinating story of the skull's secret preservation for nearly a century following its discovery during the Japanese occupation.

(arstechnica.com)

Tech Denisovan

Trump Admin Slashes NASA Workforce: Significant Cuts Hit Space Agency

2025-02-18

Trump Admin Slashes NASA Workforce: Significant Cuts Hit Space Agency

In just four weeks, the Trump administration has cut NASA's workforce by approximately 10%, impacting nearly 1800 employees. Around 750 accepted a deferred resignation offer, while roughly 1000 probationary employees were terminated. However, further significant cuts are anticipated. NASA field center directors have been instructed to prepare for substantial reductions in force in the coming months. This casts a pall of uncertainty over already demoralized staff and signals the Trump administration's intention to implement deeper budget cuts, potentially jeopardizing the future of American space exploration.

(arstechnica.com)

Tech job cuts

Design Tokens: The Key to Scalable and Consistent UI Architectures

2024-12-18

Design Tokens: The Key to Scalable and Consistent UI Architectures

This article explores the role of design tokens in modern UI architecture. By representing design decisions as data, design tokens serve as a single source of truth, enabling automated code generation across platforms for faster updates and improved design consistency. It details the layered organization of design tokens (option, decision, and component tokens), automated distribution processes, and how to choose the appropriate number of layers and token scope. Finally, it discusses when design tokens are appropriate and their limitations, helping readers determine their suitability for their projects.

(martinfowler.com)

Design design tokens UI architecture automated design

The Future of Chocolate: Beyond Cocoa?

2024-12-24

The Future of Chocolate: Beyond Cocoa?

Soaring cocoa prices, coupled with environmental concerns and labor issues, are creating a crisis in the Swiss chocolate industry. New EU regulations banning deforestation-linked products add further pressure. Startups are responding by developing cocoa-free alternatives, using ingredients like fava beans, oats, sunflower seeds, and carob. Innovative approaches include utilizing more of the cocoa fruit and even converting greenhouse gases into cocoa butter substitutes. While these technologies are nascent, the future of chocolate promises deliciousness, albeit with potentially altered sourcing.

(www.swissinfo.ch)

Tech Cocoa prices Chocolate alternatives Sustainability

3200% CPU Usage? An Unguarded TreeMap Caused My Nightmare

2025-02-28

3200% CPU Usage? An Unguarded TreeMap Caused My Nightmare

The author's machine hit 3200% CPU utilization! The culprit? An unprotected `TreeMap`. Concurrent access from multiple threads created a cycle in the red-black tree, causing the program to get stuck in `TreeMap.put()`. Experiments reproduced the issue, revealing that only languages allowing NullPointerException catches could exhibit this problem. Solutions are discussed, highlighting the importance of code reviews, static analysis, and multithreaded tests in preventing such issues.

(josephmate.github.io)

Development

2100-Year-Old Alexander the Great Mosaic Undergoes Non-Destructive Analysis

2025-01-22

2100-Year-Old Alexander the Great Mosaic Undergoes Non-Destructive Analysis

Researchers have used non-invasive techniques to analyze a 2,100-year-old mosaic depicting the Battle of Issus, housed at the National Archaeological Museum of Naples. Multispectral imaging, X-ray fluorescence, and spectroscopy revealed the mosaic's intricate composition and signs of degradation. The study identified various materials used in its construction, including Italian and Mediterranean marbles and volcanic rocks, as well as gypsum and wax from past restorations. The findings also highlighted thermal instability and structural issues, providing valuable data for future restoration efforts.

(phys.org)

Archaeology conservation Alexander the Great

Should Christians Use AI for Apologetics? A Software Dev's Concerns

2025-01-21

A software developer raises concerns about using AI and Large Language Models (LLMs) for Christian apologetics. He argues that LLMs are fundamentally "bullshit generators," capable of producing truthful outputs but not designed to prioritize truth, making them prone to fabricating information. Using LLMs in apologetics risks spreading falsehoods and damaging Christianity's credibility. The author suggests focusing on creating powerful search engines to improve access to existing resources instead of relying on LLMs.

(lukeplant.me.uk)

Misc Apologetics

Mysterious Illness Kills Over 50 in Northwest Congo

2025-02-25

Mysterious Illness Kills Over 50 in Northwest Congo

A mysterious illness has claimed the lives of over 50 people in northwestern Congo. The outbreak, which began on January 21st, has seen 419 cases reported with 53 deaths. The rapid progression of the illness, with most patients dying within 48 hours of symptom onset, is alarming health officials. Initial investigations suggest a possible link to children consuming bats. Samples have been sent for testing to rule out Ebola and other hemorrhagic fevers; some tested positive for malaria. The incident highlights concerns about zoonotic diseases, particularly in areas where wild animal consumption is common.

(apnews.com)

Tech unknown illness Congo

Closed-Form Solution for a Zigzag Number Spiral

2025-08-06

This article tackles a mathematical puzzle involving an infinite grid of numbers arranged in a spiral pattern that reverses direction at each grid edge. By analyzing patterns along the spiral's edges and diagonal, the author derives a closed-form expression, (f(m, n) = (max(m, n))^2 - max(m, n) + 1 + (-1)^{max(m, n)} (m - n)), to calculate the number at any position (m, n) in the grid. The article meticulously details the derivation, including analysis of edge and diagonal numbers, and the process of transforming a piecewise function into a single closed-form expression.

(susam.net)

Misc

Cheap Drones Reshape Global Power Dynamics

2025-06-14

Cheap Drones Reshape Global Power Dynamics

Recent successful drone strikes by Israel and Ukraine against enemy targets have sparked concerns about the future of warfare and the global balance of power. The article analyzes the disruptive impact of inexpensive drones: their ability to inflict significant economic damage by targeting critical infrastructure (highways, bridges, power plants, etc.) at low cost represents a stark contrast to traditional large-scale military engagements. This asymmetric warfare capability renders even large nations vulnerable and could lead to a reshaping of the global order, ultimately moving toward a more decentralized and fragmented power structure.

(blog.exitgroup.us)

Tech drone warfare global politics power balance

Arctic Sea Ice Extent Hits Record Low Maximum

2025-03-28

Arctic Sea Ice Extent Hits Record Low Maximum

Arctic sea ice extent reached its annual maximum on March 22, 2025, at 14.33 million square kilometers, the lowest in 47 years of satellite record. This is 1.31 million square kilometers below the 1981-2010 average and 80,000 square kilometers below the previous record low in 2017. While subject to revision, the preliminary data highlights the accelerating impact of climate change on the Arctic.

(nsidc.org)

Tech Arctic sea ice satellite observation

Async Function Calls on Socket.io: Introducing socket-call

2025-06-16

Async Function Calls on Socket.io: Introducing socket-call

socket-call is a small library built on top of Socket.io that lets you call events like any regular async TypeScript function. It simplifies Socket.io usage, offering a cleaner and more intuitive programming experience. Code examples demonstrate server-side and client-side implementation, showcasing login functionality and server-to-client message sending.

(github.com)

Development

Visualizing Humanity's Knowledge: $10k Bounty for Improved ISBN Visualization

2025-01-10

Visualizing Humanity's Knowledge: $10k Bounty for Improved ISBN Visualization

Anna's Archive, an open library aiming to back up all of humanity's knowledge, is offering a $10,000 bounty for improvements to its ISBN visualization tool. This tool displays collected ISBN data as an image, using color to differentiate between collected and uncollected data. The bounty challenges developers to improve zooming, interactivity, and data presentation to better identify and preserve rare books. Submissions must be open-source and meet specific criteria by January 31st, 2025.

(annas-archive.org)

Tech knowledge preservation

My 2024 Reading List: A Journey Through Philosophy, Science, and Literature

2025-01-01

My 2024 Reading List: A Journey Through Philosophy, Science, and Literature

Waqas Younas shares his 2024 reading list, a diverse collection spanning philosophy, logic, literature, history, and biography. From Cicero's letters to Nietzsche's Human, All Too Human, and from quantum mechanics to Tagore's poetry, the books reflect a journey of intellectual exploration. The engaging review interweaves insightful excerpts and personal reflections, making it a captivating read for anyone interested in a broad spectrum of subjects.

(thoughts.wyounas.com)

Misc reading list book review 2024 reads

NVIDIA to Build Massive AI Supercomputer Manufacturing in the US

2025-04-14

NVIDIA to Build Massive AI Supercomputer Manufacturing in the US

NVIDIA is partnering with TSMC, Foxconn, Wistron, Amkor, and SPIL to build over a million square feet of manufacturing space in Arizona and Texas for its Blackwell AI chips and supercomputers. Over the next four years, they plan to produce up to half a trillion dollars worth of AI infrastructure in the US, creating hundreds of thousands of jobs and boosting economic security. This initiative marks a significant step in establishing a robust US AI infrastructure, strengthening supply chain resilience, and meeting the soaring demand for AI computing power.

(blogs.nvidia.com)

Tech AI supercomputers US manufacturing

Tesla's Shanghai Gigafactory Rumored to Produce a Budget Model Y 'E80'

2025-05-02

Tesla's Shanghai Gigafactory Rumored to Produce a Budget Model Y 'E80'

Rumors suggest Tesla's Giga Shanghai will produce a more affordable Model Y variant, internally codenamed 'E80', this May. This stripped-down version is expected to feature smaller wheels, single-layer side windows, no rear display, fewer speakers, single-color ambient lighting, fabric seats without heating or ventilation, and a manual trunk. These reductions aim to bring the price down to ¥190,000-¥210,000 ($26,000-$28,800), potentially even lower to ¥150,000-¥170,000 ($20,500-$23,300). This strategy mirrors Tesla's previous releases of budget-friendly variants of the Model 3 in Mexico and the Cybertruck in the US, both featuring cost-cutting measures like textile seats and reduced features. Despite the cutbacks, the 'E80' is anticipated to remain attractive due to the Model Y's premium branding and the competitive Chinese EV market.

(www.teslarati.com)

Tech Budget Variant

arXivLabs: Experimenting with Community Collaboration

2025-02-11

arXivLabs is a framework for collaborators to develop and share new arXiv features directly on the website. Individuals and organizations involved embrace arXiv's values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only partners with those who share them. Have an idea to improve the arXiv community? Learn more about arXivLabs.

(arxiv.org)

Development

Musk's xAI Faces Backlash Over Memphis Data Center's Environmental Impact

2025-06-13

Elon Musk's AI company, xAI, is facing criticism for its Memphis data center, which relies on 35 methane gas turbines operating under a 'temporary' permit, bypassing federal emission regulations. These turbines, lacking crucial pollution control equipment, emit NOx and other hazardous air pollutants. xAI claims the temporary status exempts them from permitting requirements, but critics question this, particularly given the lack of initial investment in pollution control technology. The Guardian reports discrepancies between the number of active turbines and the mayor's claims, further fueling the controversy. The situation highlights a major environmental concern surrounding AI infrastructure development.

(simonwillison.net)

Tech

Go Protobuf's New Opaque API Improves Performance and Safety

2024-12-16

The Go team released a new Opaque API for Go Protobuf, coexisting with the existing Open Struct API. This new API decouples generated code from its underlying memory representation, leading to performance improvements, reduced memory allocations, and enabling optimizations like lazy decoding. By hiding struct fields and accessing them only through accessor methods, it prevents pointer-related bugs and accidental sharing. Migration involves enabling the Hybrid API, using the `open2opaque` tool, and then switching to the Opaque API. The existing Open Struct API remains supported.

(go.dev)

Development

American Singer Caught in East German Underground

2025-03-09

American Singer Caught in East German Underground

Popular American singer Nick Rivers travels to East Germany for a music festival and falls for the gorgeous Hillary Flammond, becoming entangled in an underground resistance movement. He teams up with Agent Cedric and Hillary to rescue her father, Dr. Paul, a scientist captured by the Germans who want him to build a new naval mine.

(binocularshot.com)

Game spy

TrailBase: A Blazing Fast Lightweight Database

2025-02-04

TrailBase, a lightweight database, combines a low-overhead language, a fast HTTP server, and a lightweight relational SQL database. Benchmarks show TrailBase inserting 100k records over 20 times faster than SupaBase, 10 times faster than PocketBase, and even slightly faster than in-process vanilla SQLite. While SupaBase offers more features, its memory footprint is roughly 50 times larger than TrailBase's. TrailBase boasts sub-millisecond read latencies, comparable to Redis, but operates on primary data, not a cache. Its JavaScript performance is also exceptional, with its V8 engine outperforming PocketBase's goja engine by a factor of 40. In short, TrailBase is incredibly fast and resource-efficient, but real-world testing is crucial.

(trailbase.io)

Development

Elon Musk's Government Reform Attempt: A Battle Against Bureaucracy

2024-12-15

Elon Musk's Government Reform Attempt: A Battle Against Bureaucracy

This article explores Elon Musk's attempts to reform government inefficiency. The author argues that Democrats haven't prioritized addressing government inefficiency, and Musk's intervention is not a solution but may exacerbate the problem. Insiders are watching Musk's reform attempts with skepticism, believing that even billionaires can't easily shake the entrenched bureaucratic system. The article points out that lengthy legal procedures and resistance from vested interests are huge obstacles to reform, and the courts also play a significant role in worsening the problem. Ultimately, the author calls for a re-evaluation of government reform strategies and a clear understanding of the difficulty and complexity of reform.

(www.eatingpolicy.com)

Misc government reform bureaucracy Elon Musk

Steam Deck Gets 'Bricked': A Minimalist Handheld Mod

2025-01-25

A developer has created a radical modification of the Steam Deck, removing the screen and controllers to create a minimalist handheld dubbed the 'Steam Brick'. This involved a complete teardown and rebuild, leaving only the motherboard, power button, and a USB port. The motivation? Portability. The resulting device is about a third the size of the original and significantly lighter, easily fitting into a backpack. While functionality is reduced – accessing the BIOS is currently impossible – for users who primarily connect their Steam Deck to AR glasses or a TV, this could be a worthwhile trade-off.

(crastinator-pro.github.io)

Hardware Minimalist Handheld

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