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Non-Determinism in Classical Mechanics: Norton's Dome and the Space Invader

2025-02-15
Non-Determinism in Classical Mechanics: Norton's Dome and the Space Invader

Classical mechanics harbors some famously non-deterministic cases. The article first introduces Norton's Dome, where the derivative of the force is undefined at a specific point, leading to non-unique solutions. A more bizarre example is the 'Space Invader,' experiencing unbounded acceleration in finite time, reaching infinity at t=π/2. Painlevé non-collision singularities are also mentioned, such as a five-body gravitational problem where a particle reaches infinity in finite time. These examples challenge the deterministic assumptions of classical mechanics.

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(physics.stackexchange.com)
Physics classical mechanics non-determinism Norton's Dome

Mario Kart World: A Massive Open-World Racing Revolution

2025-06-03
Mario Kart World: A Massive Open-World Racing Revolution

Nintendo's ambitious new title, Mario Kart World, completely reinvents the series, shifting from traditional individual tracks to a vast open world. So large was the game's scope, it initially struggled to run on the original Switch, ultimately becoming a launch title for the more powerful Switch 2. The development team not only doubled the racer count to 24 but also fundamentally redesigned core elements. Track design, for instance, now considers players entering and exiting from any direction. While familiar Mushroom Kingdom elements appear, the world is designed first and foremost for optimal kart racing. New modes include Knockout Tour, a battle royale-style race across the continent, and a revamped Grand Prix where players drive between courses. This change was inspired by the kishōtenketsu narrative structure, creating varied pacing. The game retains the series' quirky charm, like costume changes from eating diner food.

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(www.theverge.com)
Game Mario Kart Open World

OpenAI Backtracks: GPT-4o Returns to ChatGPT After User Outcry

2025-08-09
OpenAI Backtracks: GPT-4o Returns to ChatGPT After User Outcry

Just a day after replacing it with GPT-5, OpenAI has reinstated GPT-4o in ChatGPT due to significant user backlash. Many users complained that GPT-5 produced slower, shorter, and less accurate responses compared to its predecessor. The removal of GPT-4o, which some users described as having a more personable and engaging conversational style, even prompted emotional responses, with users expressing feelings of loss and comparing their interaction with the model to a friendship or even a relationship. In response to the negative feedback, OpenAI CEO Sam Altman promised improvements to GPT-5, increased usage limits for Plus users, and the option for paid users to continue using GPT-4o.

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(www.theverge.com)
AI

Machine Learning: Biology's Native Tongue?

2025-06-06
Machine Learning: Biology's Native Tongue?

This article explores the revolutionary role of machine learning in biological research. Traditional mathematical models struggle with the complexity, high dimensionality, and interconnectedness of biological systems. Machine learning, especially deep learning, can learn complex non-linear relationships from data, capturing context-dependent dynamics in biological systems, much like learning a new language. The article uses the example of intracellular signaling mechanisms to illustrate the similarities between machine learning models and how cells process information and looks ahead to emerging fields like predictive biology, arguing that machine learning will become a core tool in bioengineering.

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(decodingbiology.substack.com)
AI predictive biology

Trump's Steep Price for Taiwan: TSMC's Potential Intel Bailout

2025-08-06
Trump's Steep Price for Taiwan: TSMC's Potential Intel Bailout

To alleviate the US trade deficit, the Trump administration reportedly demanded two stringent conditions from TSMC for tariff relief on Taiwanese exports: acquiring a 49% stake in Intel and investing an additional $400 billion in the US. This move aims to rescue the struggling Intel and secure the US government's domestic chip supply chain plans. However, considering TSMC's existing $165 billion US investment and Intel's financial woes, this demand appears highly improbable.

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(www.notebookcheck.net)
Tech US Tariffs

Trump Admin Kills Free IRS Tax Filing Program

2025-04-16
Trump Admin Kills Free IRS Tax Filing Program

The Trump administration plans to eliminate the IRS's Direct File program, a free electronic tax filing system. Launched during the Biden administration, the program was praised for its ease of use, but Republican lawmakers and commercial tax preparation companies criticized it as wasteful. While free alternatives exist, they are often difficult to use. The decision sparks concerns about government efficiency and accusations of favoring large tax preparation companies, with Senator Warren alleging the move protects their profits.

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(apnews.com)
Tech tax filing

Dangerous Career Advice: A Sharp Tool for Strong Engineers

2025-08-26

This article argues that effective career advice, like sharp tools, can be immensely helpful or incredibly harmful depending on its use. Much career advice is superficial and lacks practical application. The author encourages engineers to embrace 'dangerous advice,' breaking conventions to achieve high efficiency. While risky, the rewards outweigh the risks for strong engineers. The author cautions that this advice isn't suitable for weaker engineers.

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(www.seangoedecke.com)
Development

Far-UVC: The Future of Clean Air?

2025-09-23
Far-UVC: The Future of Clean Air?

This article explores the potential of far-ultraviolet (far-UVC) technology to purify indoor air and prevent airborne diseases. Drawing parallels to the historical success of water treatment in reducing waterborne illnesses, it argues that far-UVC could revolutionize air purification. While briefly used in the 1930s, far-UVC was sidelined due to technological limitations and the rise of antibiotics. New far-UVC lamps overcome these drawbacks, effectively killing airborne pathogens without harming humans. However, widespread adoption faces challenges including inconsistent product quality, lack of standardization, and insufficient research data. The article calls for increased research and application of far-UVC to improve indoor air quality and reduce the risk of airborne diseases.

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(www.worksinprogress.news)
Tech disease prevention

The Power of Community: How Shared Goals Supercharge Motivation

2025-06-29

Ever struggled with a lack of motivation? This author shares personal experiences demonstrating the immense power of community in boosting drive. Using contrasting examples from StarCraft and Brawl Stars, the article highlights how shared goals within a community can significantly amplify motivation compared to solo efforts. It explores the mechanics behind this, including approval-seeking and the availability heuristic, and offers actionable advice on joining or creating productive communities to unlock your potential.

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(alanwu.xyz)
Misc motivation goals

DeepMind Robot Achieves Human-Level Competitive Table Tennis

2025-05-02
DeepMind Robot Achieves Human-Level Competitive Table Tennis

A Google DeepMind team has developed a robot capable of competing at a human expert level in table tennis. The research, detailed in a published paper and accompanying videos, showcases the robot's impressive performance in a complex, dynamic environment, representing a significant advancement in AI-powered robotics. The project involved numerous DeepMind researchers, highlighting the power of collaborative research.

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(sites.google.com)
AI Table Tennis

New Lasso-Shaped Antibiotic Discovered in Soil

2025-04-04
New Lasso-Shaped Antibiotic Discovered in Soil

Researchers have unearthed a novel antibiotic molecule from a soil sample, demonstrating potent antibacterial activity against a wide range of disease-causing bacteria, including those resistant to current treatments. This lasso-shaped peptide, produced by a Paenibacillus species, uniquely targets bacterial ribosomes, making resistance development difficult. The discovery offers a beacon of hope in the fight against the escalating antibiotic resistance crisis.

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(www.nature.com)
Tech antibiotic drug resistance

LinkedIn's AI Job Match: Fewer Applications, Better Matches

2025-01-15
LinkedIn's AI Job Match: Fewer Applications, Better Matches

LinkedIn launched a new AI-powered feature called "Job Match" designed to help job seekers find more suitable roles. Going beyond simple keyword matching, it analyzes a candidate's experience to assess their fit for specific positions. LinkedIn aims to reduce unqualified applications, improving efficiency for both job seekers and recruiters. While available to all users, LinkedIn Premium subscribers receive more detailed match information. Despite the intense competition following 2024's tech layoffs, LinkedIn believes this feature can address a significant portion of the job search challenge by increasing transparency.

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(www.engadget.com)
AI Job Search

AI-Powered Hacking: A New Threat Emerges?

2025-06-05
AI-Powered Hacking: A New Threat Emerges?

The rise of AI presents new challenges to cybersecurity. Researchers have found that AI models like ChatGPT can be manipulated to generate malicious code, lowering the barrier to entry for cybercrime. While AI can't yet fully replace experienced hackers, its potential to accelerate malicious code generation is alarming. This could lead to more sophisticated attacks, such as multiple simultaneous zero-day exploits. However, AI also offers new tools for cybersecurity defense, initiating an "AI arms race" where future security will increasingly depend on AI-powered offense and defense.

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(www.wired.com)
Tech

Space Data Centers: The Dream of a Single Launch vs. Harsh Reality

2025-06-27
Space Data Centers: The Dream of a Single Launch vs. Harsh Reality

Starcloud claims a single 100-ton Starship launch could build a 40 MW space data center (SDC) for $8.2M. This analysis reveals this is infeasible, requiring up to 22 launches. Solar arrays need 4 launches, thermal management 13, and server racks 5. Starcloud drastically underestimates launch costs, rendering their economic comparison to terrestrial data centers unrealistic. This highlights the immense engineering challenges and high costs of space data centers, urging a more realistic techno-economic analysis.

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(angadh.com)
Tech Space Data Center Launch Costs

R vs. Pandas: A Tale of Two Data Analysis Approaches

2025-06-07
R vs. Pandas: A Tale of Two Data Analysis Approaches

A seasoned R user recounts their five-year journey using Python's pandas library for data analysis. Through a simple purchase analysis example, the article contrasts the elegance of R's tidyverse with the clunkiness of pandas. R's code flows naturally, while pandas requires more verbose code, frequent restructuring of data and indices, and inconsistent API design, leading to significant user frustration. The author argues that while pandas is powerful, it presents a steep learning curve and a less-than-ideal user experience for those accustomed to R's tidyverse.

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(www.sumsar.net)
Development

The Five Doors of Influence: A New Approach to Persuasion

2025-09-22
The Five Doors of Influence: A New Approach to Persuasion

This article explores five distinct approaches to influencing others: Rationalizing, Asserting, Negotiating, Inspiring, and Bridging. Each represents a 'door' leading to different levels of relationship and commitment. The author emphasizes recognizing our own default persuasion style (our 'blind spot') as crucial, as it shapes our perception and interactions. The key is adapting our approach to the individual, rather than rigidly sticking to one method. Through examples and reflective questions, the article guides readers in understanding and applying these five techniques to improve communication and influence.

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(andiroberts.com)
Misc influence

Raspberry Pi's Soldering Secret: 60 Million Units and a Refine Process

2025-04-30
Raspberry Pi's Soldering Secret: 60 Million Units and a Refine Process

Early Raspberry Pi production relied on a mix of manual and robotic through-hole soldering, especially for components like the 40-pin GPIO header, Ethernet, and USB ports. This proved inefficient and costly. To overcome this, Raspberry Pi partnered with Sony to implement an innovative lead-free reflow soldering process that simultaneously solders surface-mount and through-hole components. This significantly improved efficiency and product quality, leading to the production of over 60 million units.

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(arstechnica.com)
Hardware soldering

Pixel 10: Stunning Upgrade, Enhanced Imaging Capabilities

2025-08-20
Pixel 10: Stunning Upgrade, Enhanced Imaging Capabilities

The Google Pixel 10 boasts a satin-finish metal frame, polished glass back, and the iconic camera bar, available in four expressive colors: Obsidian, Frost, Indigo, and Lemongrass. Its 6.3-inch Actua display shines with a peak brightness of 3000 nits for exceptional viewing. Audio is improved, featuring exceptional bass for an enhanced multimedia experience. Camera improvements are significant, highlighted by the first-ever 5x telephoto lens on this Pixel tier. This lens offers fast autofocus, 10x optical quality, and up to 20x zoom with Super Res Zoom, making long-distance shots easier than ever.

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(blog.google)
Hardware Camera Upgrade

Amazon's Leadership Principles: A Critical Examination

2025-09-01

This article offers a critical look at Amazon's leadership principles, particularly "Customer Obsession," "Ownership," and "Bias for Action." The author argues that Amazon overemphasizes speed and meeting superficial customer demands, neglecting true customer needs and long-term value. Regarding "Customer Obsession," the author criticizes Amazon's over-reliance on customer feedback rather than proactively developing potentially impactful technologies. On "Ownership," the author points to a lack of communication and collaboration within Amazon, with significant information silos between teams. Concerning "Bias for Action," the author believes Amazon overemphasizes speed at the expense of product quality and customer trust, advocating for a "bias for inaction" mechanism at senior engineering levels to ensure high standards before product launches.

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(www.daemonology.net)
Startup

How McKinsey Destroyed the American Middle Class

2024-12-29
How McKinsey Destroyed the American Middle Class

This article examines the impact of management consulting firms like McKinsey on the decline of the American middle class. The author argues that McKinsey, by promoting shareholder primacy and implementing strategies aimed at streamlining corporate structures and eliminating middle management (such as 'reengineering' and 'overhead value analysis'), led to massive layoffs, a decline in middle management and blue-collar jobs, weakened unions, and ultimately exacerbated economic inequality and the destruction of the American middle class. The author concludes that this 'technocratic management' approach fails to address structural inequalities and instead widens the gap between elites and the general population.

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(www.theatlantic.com)
Startup Middle Class Economic Inequality

New 'OtterCookie' Malware Targets Developers in Fake Job Offers

2024-12-29
New 'OtterCookie' Malware Targets Developers in Fake Job Offers

Cybersecurity firms have uncovered a new malware, OtterCookie, used in the 'Contagious Interview' campaign by North Korean threat actors. This campaign lures software developers with fake job offers containing malware, including OtterCookie and previously seen malware like BeaverTail. OtterCookie is delivered through Node.js projects or npm packages, establishing communication with a command and control server via Socket.IO. It steals sensitive data, such as cryptocurrency wallet keys, documents, and images, and performs reconnaissance on the infected system. Experts warn developers to carefully vet job offers and avoid running untrusted code.

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(www.bleepingcomputer.com)
Tech Malware

Slow-Motion Earthquake Captured: A Tectonic Shock Absorber Off Japan

2025-07-05
Slow-Motion Earthquake Captured: A Tectonic Shock Absorber Off Japan

For the first time, scientists have directly observed a slow-slip earthquake releasing tectonic pressure on a major ocean fault. The event, occurring on the tsunami-generating portion of Japan's Nankai Trough, acted like a tectonic shock absorber, slowly unzipping the fault line between tectonic plates. Deep-sea borehole sensors captured two such events in 2015 and 2020, each lasting weeks and traveling tens of kilometers along the fault. The study reveals these slow slips occur in areas of abnormally high fluid pressure, confirming the role of fluids in slow earthquakes. This discovery provides crucial insights into subduction zone behavior throughout the Pacific Ring of Fire, highlighting the contrast with potentially more hazardous faults like Cascadia, which lacks this natural shock-absorbing mechanism.

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(phys.org)
Tech slow-slip earthquake Nankai Trough earthquake prediction

The Optimal Egg-Drop Orientation: Science Cracks the Case

2025-05-29
The Optimal Egg-Drop Orientation: Science Cracks the Case

Contrary to intuition, a new study reveals that the best way to drop an egg isn't necessarily on its end. While vertically oriented eggs exhibit greater stiffness under static compression, horizontal eggs are tougher when subjected to dynamic impact. The key difference lies in toughness—the ability to absorb energy—versus stiffness—resistance to deformation. Horizontal orientation allows for better kinetic energy dissipation during a fall, minimizing the risk of breakage. This research highlights the importance of toughness over stiffness in impact scenarios, analogous to bending your knees when landing a jump.

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(arstechnica.com)
Misc egg toughness

Fourier Transform: A Mathematical Revolution

2025-09-05
Fourier Transform: A Mathematical Revolution

This article recounts the discovery of the Fourier transform and its profound impact. In the early 19th century, French mathematician Joseph Fourier discovered a way to decompose any function into a set of fundamental waves – the Fourier transform. This not only sparked a mathematical revolution but also deeply influenced fields like physics and chemistry. From compressing files to enhancing audio signals, from studying tides to detecting gravitational waves, the Fourier transform is ubiquitous, even playing a crucial role in quantum mechanics. Its core idea is to decompose complex functions into simple sine and cosine waves, thereby simplifying problems; this is like breaking down a symphony into the sounds of individual instruments.

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(www.quantamagazine.org)
Tech Fourier Transform

MG4 EV's V2L Function: 2-Hour Stress Test Passes with Flying Colors

2025-05-25

A user conducted a V2L (Vehicle-to-Load) functionality test on several electric vehicles. The Hyundai Ioniq disconnected after 10 minutes of idle connection, but the 2023 MG4 EV passed a 2-hour idle test without issue, even with a 120W load. Tests also involved a 5kW heater, which the MG4 also handled without problems. Other vehicles like Tesla and BYD Atto3 also passed. This suggests the MG4 EV's V2L function is robust and reliable as a mobile power source.

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(openinverter.org)
Hardware

Contoso's 'Permanent' Deletion: Not So Permanent After All

2025-06-25
Contoso's 'Permanent' Deletion: Not So Permanent After All

Ten months ago, I deleted my account from Contoso, receiving confirmation that my data was permanently and irreversibly deleted. Yesterday, I received an email from Contoso about a Privacy Policy update. Their claim of permanent deletion was clearly premature, as they still possess my email address. This raises serious questions about data privacy and the trustworthiness of corporate promises.

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(devblogs.microsoft.com)
Misc

Spirituality: Secure Attachment to Reality

2025-01-02
Spirituality: Secure Attachment to Reality

This article connects spiritual development with attachment theory, proposing that spirituality is essentially about forming a secure attachment to reality itself. Just as children develop attachment patterns with caregivers, we develop similar patterns with existence. Secure attachment means feeling safe to experience whatever arises, trusting reality's reliability, and returning to a sense of basic okayness even in difficulty, knowing we are loved. Insecure attachment can lead to using spiritual practices as self-validation or escapism. The author argues that healing hinges on establishing safety, which precedes growth. By building secure attachment to reality, we open ourselves to vulnerability and achieve genuine transformation.

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(intimatemirror.substack.com)
Misc spirituality attachment theory psychological healing

AMD CPU Stability Issues: The Importance of BIOS Updates

2025-08-26
AMD CPU Stability Issues: The Importance of BIOS Updates

Both AMD and Intel have faced issues with CPU performance degrading over time, often linked to motherboard manufacturers deviating from default settings. To address similar problems, AMD recommends users promptly update their motherboard BIOS to obtain the latest default settings, improve compatibility, and enhance security. AMD's longer lifespan chipsets and CPU sockets, along with various power and overclocking tools, create a much wider range of system configurations, increasing testing difficulty. This is particularly true for AM4 motherboards, which can theoretically pair with much later CPUs, unlike Intel's ecosystem.

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(arstechnica.com)
Hardware BIOS updates CPU stability

Navy's New Year's Day Poetry Tradition: A Verse on the Bridge

2025-01-05
Navy's New Year's Day Poetry Tradition: A Verse on the Bridge

The U.S. Navy has a nearly century-old tradition: on the first day of the new year, during the early morning watch, the officer of the deck can record the ship's activities in poetic form in the deck log. This article recounts this tradition and showcases New Year's poems from various Navy ships throughout history, from WWII destroyers to modern ones, highlighting the diversity of naval life and culture. While declining with the rise of electronic devices, this unique tradition remains a cherished memory.

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(www.twz.com)
Misc Naval tradition Deck log Poetry
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