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US Crackdown on Dissent Silences Foreign Scientists

2025-03-29
US Crackdown on Dissent Silences Foreign Scientists

The US government's increasing crackdown on dissent is creating a climate of fear for foreign scientists, who risk visa cancellation, detention, and deportation for expressing critical views. The article details numerous cases of foreign students and scholars detained or deported for criticizing government policies. Universities are complying with the administration's demands for greater control over protests and faculty, in exchange for federal funding, even canceling DEI programs. Furthermore, the government is canceling research grants on topics like LGBT+ health, poverty's impact, and climate change. This chilling effect is silencing many foreign scientists and severely hindering scientific progress.

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(christinapagel.substack.com)
Tech academic freedom

Elixir's BEAM VM: Busy Waiting – Optimization or Resource Hog?

2025-03-29

Benchmarking Go, Elixir, and Node.js revealed Elixir (on the BEAM VM) exhibited high CPU usage despite excellent responsiveness. The culprit? Busy waiting, a BEAM optimization maximizing responsiveness. While misleading OS-reported CPU usage, enabling busy waiting is beneficial for HTTP workloads on dedicated hardware. However, disabling it is recommended on systems sharing kernels with other software or cloud burstable instances to prevent impacting other processes. Tests showed no performance difference with busy waiting disabled for HTTP requests.

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(stressgrid.com)
Development Busy Waiting

Beyond OOP: The Evolution of Subtyping in Programming Languages

2025-03-29

This article explores the crucial role of subtyping in programming language design. The author, drawing on their experience developing several programming languages, explains that subtyping is not limited to class inheritance in object-oriented programming but is a more fundamental concept: type X is a subtype of type Y if a value of type X can be used wherever a value of type Y is expected. The article clearly explains why subtyping is crucial even in performance-oriented low-level languages, enabling the compiler to statically check for null values, aliasing, and other issues, thereby improving code reliability and ultimately driving the evolution of programming languages.

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(blog.polybdenum.com)
Development subtyping

AI-Powered Romance Scam Costs Woman $300,000

2025-03-29
AI-Powered Romance Scam Costs Woman $300,000

Evelyn, a Los Angeles woman, lost $300,000 to a romance scam orchestrated through the Hinge dating app. The scammer, posing as "Bruce," lured her into a cryptocurrency investment scheme, ultimately stealing her life savings. This case highlights the growing use of AI in scams: AI writing tools make it easier to create convincing narratives, while deepfakes enhance credibility, making scams harder to detect. Evelyn's story serves as a cautionary tale, emphasizing the importance of caution in online dating and the dangers of high-yield investment promises.

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(www.wired.com)
AI AI Technology

Emulating the Sega Genesis's YM2612 Sound Chip (Part 1)

2025-03-29

This post begins a series on emulating the Sega Genesis's Yamaha YM2612 FM synthesis chip (OPN2). The author details the complexities of this notoriously difficult-to-emulate chip, focusing on its integration within the Genesis and CPU interaction. The article delves into the YM2612's architecture, explaining its six audio channels, four operators per channel, eight algorithms, and additional features like an LFO, timers, and a DAC. It explores the interplay between the 68000 and Z80 CPUs, register mapping, read/write behavior, and the root causes of audio issues in certain games (e.g., Earthworm Jim and Hellfire) on different Genesis models. Finally, the author describes emulating the DAC channel, providing valuable insight for anyone undertaking YM2612 emulation.

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(jsgroth.dev)
Game Game Console Emulation Audio Emulation

OpenWrt "Two" Crowdfunding Campaign Approved

2025-03-29

GL.iNet's crowdfunding campaign for OpenWrt "Two", a next-generation router, has been successfully approved by the community. Featuring the MT7988 chip, 10G SFP, 5G copper, 2.5G copper ports, and tri-band Wi-Fi 7, "Two" is expected to retail around $250, with a portion of the proceeds donated to the OpenWrt project. Availability is anticipated in late 2025.

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(openwrt.org)
Hardware

Testing Without Mocks: A Novel Approach to Unit Testing

2025-03-29

This article presents a novel approach to unit testing that eliminates the need for mocks and spies, resulting in fast, reliable, and maintainable tests. The core idea involves combining state-based testing with a new infrastructure technique called "Nullables." Nullables aren't test doubles; they're production code with an "off" switch, allowing tests to run without relying on external systems or state. While requiring modifications to production code, this approach avoids many drawbacks of traditional methods, such as flaky tests and difficult refactoring, and offers significant performance gains. The article thoroughly explains the patterns and techniques involved, including Narrow Tests, State-Based Tests, and Overlapping Sociable Tests, providing ample code examples and diverse use cases, making it ideal for developers to learn and implement.

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(www.jamesshore.com)
Development

How 168 Spanish Soldiers Conquered a Million-Strong Inca Empire

2025-03-29
How 168 Spanish Soldiers Conquered a Million-Strong Inca Empire

This article recounts the incredible story of 168 Spanish soldiers conquering the Inca Empire, a civilization boasting millions of inhabitants. The author delves into Pizarro's conquest, examining his background, Spanish military technology (cavalry, iron weaponry, firearms), tactical superiority, and fortuitous circumstances like the Inca civil war and smallpox epidemic. A comparison with Cortes's conquest of the Aztecs is drawn, highlighting leadership, diplomacy, and brutality. Ultimately, the article argues that the Spanish success stemmed not only from technological and tactical advantages but also from the exceptional decision-making and strategic acumen of Pizarro and other conquistadors.

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(mattlakeman.org)
Tech Spanish Conquest Inca Empire Military History

Pentagon Purges DEI Content: Historical Photos Among Thousands Flagged for Removal

2025-03-29
Pentagon Purges DEI Content: Historical Photos Among Thousands Flagged for Removal

The Department of Defense is undertaking a massive purge of diversity, equity, and inclusion (DEI) content from its websites and social media, targeting over 26,000 images. This includes photos of a World War II Medal of Honor recipient, the Enola Gay, and the first women to graduate from Marine infantry training. The action stems from President Trump's executive order ending DEI programs across the federal government. The purge has led to confusion, with images containing the word "gay" mistakenly flagged for removal, impacting both individuals with that surname and the aircraft itself. Historically significant photos, such as those of the Tuskegee Airmen, may be spared. The Pentagon claims it's working to comply rapidly, but the process is proving time-consuming and complex.

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(www.nbcwashington.com)
Tech content removal

Stolen Van Dyck Portrait Recovered After 73 Years

2025-03-29

In July 1951, Anthony van Dyck's Portrait of Wolfgang Wilhelm of Pfalz-Neuburg was stolen from Boughton House, Northamptonshire. This grisaille, one of thirty-seven oil sketches from van Dyck's Iconography series, embarked on a 73-year journey through the hands of experts, auctioneers, and collectors, spanning continents. A meticulous investigation, involving archival research and international collaboration, ultimately led to its return to Boughton House in 2024, revealing a captivating tale of theft, intrigue, and the persistent pursuit of justice.

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(britishartjournal.co.uk)
Misc art theft Anthony van Dyck Boughton House

Email Security Analysis: Passing Rate Analysis of Email from vooijs.eu

2025-03-29

This report details the security attributes of an email from the vooijs.eu mailbox. The email passed DKIM verification, but SPF record checks showed a mismatch between HELO and the SPF record, although it ultimately passed. URIBL checks were blocked, indicating a potential risk with the sender's IP address. The email content was brief, simply stating "This is it." Overall, the email's security level is moderate, and further investigation into potential risks is needed.

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(www.mail-tester.com)
Misc

Can AI Replace Research Scientists? UF Study Says No (Mostly)

2025-03-29
Can AI Replace Research Scientists? UF Study Says No (Mostly)

A University of Florida study tested generative AI's ability to conduct academic research. While AI excelled in ideation and research design, it struggled significantly with literature review, results analysis, and manuscript production, requiring substantial human oversight. Researchers advocate for high skepticism towards AI outputs, viewing them as requiring human verification and refinement. Published in the Journal of Consumer Psychology, the study prompts reflection on AI's role in research—more assistant than replacement.

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(news.warrington.ufl.edu)
AI

Puget Systems' Transparent Take on Tariffs and PC Pricing

2025-03-28
Puget Systems' Transparent Take on Tariffs and PC Pricing

Puget Systems openly addresses the impact of tariffs on its computer pricing. A 20% tariff increase has affected some components (motherboards, power supplies) by 20%, while others (CPUs) see less impact. Puget Systems is mitigating the effects through strategic inventory management, close supplier relationships, and absorbing some costs. They advise customers to consider early purchases to avoid potentially higher prices in June.

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(www.pugetsystems.com)
Hardware

Playstacean: A Crab-Themed PSOne Mod Takes Meme to Reality

2025-03-29
Playstacean: A Crab-Themed PSOne Mod Takes Meme to Reality

YouTuber GingerOfOz brought the meme-ified 'Playstacean' to life, a crab-shaped PlayStation One mod based on concept art by Anh Dang. This isn't just a reskin; it features functional crab claw controllers and intricate internal modifications. The build involved 3D printing, controller port adjustments, and wiring challenges. While GingerOfOz isn't releasing the design files yet, this unique creation will be showcased at the Midwest Gaming Classic.

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(gizmodo.com)
Game console mod

arXivLabs: Experimenting with Community Collaboration

2025-03-29
arXivLabs: Experimenting with Community Collaboration

arXivLabs is a framework enabling collaborators to develop and share new arXiv features directly on our website. Individuals and organizations working with arXivLabs share our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners who adhere to them. Have an idea for a project that will benefit the arXiv community? Learn more about arXivLabs.

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(arxiv.org)
Development

Banned from MSG for a T-Shirt He Designed Years Ago?

2025-03-29
Banned from MSG for a T-Shirt He Designed Years Ago?

Frank Miller, a graphic designer, was banned for life from Madison Square Garden (MSG) and its properties, including Radio City Music Hall, for an incident he claims he wasn't even involved in. The ban stems from a "Ban Dolan" T-shirt he designed in 2017, referencing a conflict between Knicks owner James Dolan and Charles Oakley. Although Miller wasn't wearing the shirt and hadn't attended an MSG event in almost two decades, he was identified, likely via facial recognition technology, and denied entry to a concert on his parents' anniversary. MSG claims his actions violated their code of conduct, but Miller argues this highlights the potential misuse of facial recognition and corporate power, raising concerns about privacy and surveillance.

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(www.theverge.com)
Misc

Volvo Recalls 7,483 PHEVs Due to Fire Risk

2025-03-29
Volvo Recalls 7,483 PHEVs Due to Fire Risk

Volvo is recalling 7,483 plug-in hybrid vehicles in the US due to a potential fire hazard. Affected models include the S60, V60, S90, V90, XC60, and XC90. The issue stems from a battery module production deviation that could cause a short circuit and thermal runaway. Owners are urged to stop charging their vehicles until the recall is addressed. Dealers will inspect and replace the battery module if necessary, and install new monitoring software. While two incidents have been reported, no injuries or accidents have occurred.

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(www.carscoops.com)
Tech recall battery safety Volvo

Microsoft Kills Windows 11 Offline Installation Bypass

2025-03-29
Microsoft Kills Windows 11 Offline Installation Bypass

Microsoft is tightening its grip on Windows 11's internet-connected account requirement. The latest Insider Preview removes the bypassnro command, previously used to circumvent the need for internet connection and Microsoft account login during setup. Microsoft cites security improvements as the reason. While registry edits currently offer a workaround, this too may be patched soon. This move aligns with Microsoft's push to upgrade users to Windows 11 and phase out Windows 10, highlighting a focus on security and a specific vision for user experience.

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(www.theverge.com)
Tech Microsoft Account System Security

DOGE's Risky Plan to Migrate SSA's COBOL Code Sparks Concerns

2025-03-28
DOGE's Risky Plan to Migrate SSA's COBOL Code Sparks Concerns

The core systems of the US Social Security Administration (SSA) still rely on outdated COBOL code. A group called DOGE is planning to migrate millions of lines of this code to a modern language within months, but this plan has sparked serious concerns. The migration process could result in system failures affecting millions of beneficiaries' payments. Experts warn of the extreme risk of system crashes, given the SSA's complex and fragile system, likened to a house of cards or a Jenga tower. DOGE plans to utilize AI to assist in code conversion, but testing and resolving all potential edge cases would take years, not months.

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(www.wired.com)
Tech

Krisp Server SDK: Tackling Turn-Taking Challenges in AI Voice Agents

2025-03-29
Krisp Server SDK: Tackling Turn-Taking Challenges in AI Voice Agents

Smooth conversations in AI voice agents are often hampered by background noise. Krisp's new server-side SDK features two advanced AI models, BVC-tel and BVC-app, effectively removing background noise and extraneous voices, improving speech recognition accuracy and naturalness. Tests show Krisp BVC reduces VAD false positives by 3.5x and improves Whisper speech recognition accuracy by over 2x. Supporting various platforms and audio sampling rates, the SDK offers a robust solution for more natural AI voice interactions.

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(krisp.ai)
AI AI voice agents

Spectral JPEG XL: Crushing Spectral Image File Sizes by 10-60x

2025-03-29
Spectral JPEG XL: Crushing Spectral Image File Sizes by 10-60x

Researchers have developed a new technique leveraging JPEG XL to compress spectral images by a remarkable 10 to 60 times, shrinking them to sizes comparable to regular high-quality photos. The method prioritizes discarding less important high-frequency spectral details while preserving metadata and high dynamic range. Although lossy, this approach holds immense potential for scientific visualization and high-end rendering, addressing the storage and transfer challenges posed by massive spectral image files.

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(arstechnica.com)
Tech spectral imaging image compression

Self-Hosting a Nearly Free, Open Source TURN Server on Oracle Cloud

2025-03-28
Self-Hosting a Nearly Free, Open Source TURN Server on Oracle Cloud

This guide details setting up a nearly free, open-source TURN server on Oracle Cloud's free tier, offering an alternative to WebRTC implementations relying on third-party services. It walks through creating subnets, security lists, instance configurations, installing Nginx, Certbot, a PeerJS server, and a Coturn server. The guide covers configuring iptables rules and using coturn-credential-api for authentication, providing complete control over WebRTC communication and enhancing privacy and security by avoiding reliance on Google or other large providers.

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(github.com)
Development TURN server Oracle Cloud

Digital Echoes: The Unseen Costs of Constant Connectivity

2025-03-28
Digital Echoes: The Unseen Costs of Constant Connectivity

This essay explores the hidden psychological toll of our hyper-connected digital lives, focusing on the concept of "digital echoes." The author argues that the constant data collection by smart devices creates a pervasive sense of being monitored, transforming us into performers rather than participants in our own lives. Using smartphones and smart cars as contrasting examples, the piece highlights the difference in data generation and privacy implications. It advocates for a more mindful approach to technology, emphasizing single-function devices and analog alternatives to mitigate the negative effects of constant surveillance. The author concludes that future technological advancements should prioritize user privacy and focused experiences over ubiquitous connectivity and multitasking.

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(www.chrbutler.com)
Tech

Japan's Citizen-Created Sex Offender Map Sparks Legal Debate

2025-03-28
Japan's Citizen-Created Sex Offender Map Sparks Legal Debate

In response to a lack of a national sex offender registry and numerous cases of child sexual abuse, a website called Amyna has emerged in Japan, offering a map of alleged sex offenders. Created by a former UN worker, Amyna aims to fill the gap in official systems, but its legality is highly questionable. Japan's strict personal information protection laws heavily restrict data disclosure, potentially leaving Amyna vulnerable to privacy violation claims. While the site argues it protects children, its lack of robust verification processes and handling of sensitive information risks false accusations and secondary victimization. The initiative has sparked a wide-ranging debate about privacy, citizen rights, and government responsibility, highlighting shortcomings in Japan's legal framework for child protection.

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(unseen-japan.com)
Misc sex offender citizen action

Raspberry Pi Stratum 1 PTP & NTP Timeserver: The Time Pi Project

2025-03-28

An open-source project, Time Pi, builds a stratum 1 Precision Time Protocol (PTP) and Network Time Protocol (NTP) timeserver using a Raspberry Pi 5. Leveraging the TimeHAT add-on board with an Intel i226 2.5Gbps NIC and supporting hardware timestamping, Time Pi achieves high-precision time synchronization, further enhanced by an optional M.2 GPS module. While encountering driver issues with the Intel i226 NIC, the project successfully utilizes Ansible to configure Chrony, NTP, and PTP software, running stably for months. Future plans include outdoor GPS antenna installation, cross-device PTP synchronization testing, and collaboration with Masterclock for advanced time synchronization solutions.

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(www.jeffgeerling.com)
Hardware Timeserver

Your TV Is Spying on You: The Rise of Streaming Ads and the Privacy Trade-off

2025-03-28
Your TV Is Spying on You: The Rise of Streaming Ads and the Privacy Trade-off

Streaming platforms are increasingly relying on ads for revenue, even monitoring user viewing habits for personalized ad targeting. The article uses Roku as a case study, detailing its transformation from a hardware company into an advertising powerhouse, acquiring ad-tech companies to gather user data for precise ad placement. This trend isn't unique to Roku; many TV manufacturers and tech giants employ similar tactics, utilizing Automatic Content Recognition (ACR) to monitor what users watch and leverage this data for analytics and targeted advertising. While personalized ads can enhance user experience, significant privacy concerns arise. The article concludes by suggesting that opting for older, non-smart TVs and avoiding connection to smart devices is the best way to evade ads and data collection.

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(www.vox.com)
Tech streaming ads

Half of US Drinking Water Contaminated with 'Forever Chemicals'

2025-03-28
Half of US Drinking Water Contaminated with 'Forever Chemicals'

The EPA's latest data reveals that nearly half of Americans have drinking water contaminated with PFAS, also known as 'forever chemicals'. These compounds, found in numerous products, persist in the environment and are linked to serious health issues like cancer and immune deficiencies. While the EPA has implemented regulations, millions remain at risk, highlighting the urgent need for widespread testing and remediation efforts.

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(www.scientificamerican.com)
Tech drinking water safety

DIY Acoustic Camera: Locating Sound Sources on a Budget

2025-03-29
DIY Acoustic Camera: Locating Sound Sources on a Budget

This project details the construction of a low-cost acoustic camera using readily available hardware and open-source software. The author utilizes a miniDSP UMA-16 microphone array and custom Python scripts to capture synchronized 16-channel audio and video. Beamforming is achieved using the Acoular library, visualizing sound pressure levels and merging the results with the video stream. The post includes code examples and a comparison with an earlier attempt using a ReSpeaker 4 microphone array and a GCC-PHAT algorithm, demonstrating a surprisingly effective and affordable approach to sound localization.

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(navat.substack.com)
Hardware acoustic camera

Finley Technologies is Hiring!

2025-03-28

Finley Technologies is seeking to fill 8 roles across various departments, including Engineering, Operations, Sales, and Post-Sales, with locations in SF, NY, and remote options. Open positions include a Founding Product Manager, Software Engineers, People Operations, Capital Markets Associate, Implementation Lead, Technical Implementation Specialist, Account Executives, and a Growth Associate focused on Financial Institutions.

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(ats.rippling.com)
Startup Tech Jobs
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