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297 posts · news.ycombinator.com
The article introduces FuzzyGraph, a web tool that visualizes equations as error heatmaps (fuzzy/non‑binary mode) instead of the classic binary “exact‑equals” plots. By showing regions of high error (black‑hole shadows) and low error (underwater islands), the author argues that fuzzy graphs reveal mathematical features invisible to conventional graphing tools.
A former NASA astronaut recounts the dead-stick landing of the Space Shuttle Atlantis from Mach 1 and 50,000 feet, a high-stakes maneuver with no go-around option. Extensive training, including 1,700 simulator approaches in a modified Gulfstream G-II, was crucial for mastering the shuttle's unique flight characteristics.
A step‑by‑step tutorial showing how to use the open‑source scikit‑decide framework together with the OpenAP aircraft performance model to compute fuel‑optimal flight trajectories. The post details the author’s high‑end workstation, installs Python 3.12, scikit‑decide, OpenAP, and DuckDB with several extensions, then explores OpenAP’s aircraft data (e.g., A380‑800 specs and drag polar) and demonst…
The author built zSST, a SystemVerilog recreation of the 3dfx Voodoo 1 graphics chip, and integrated it with a z486 CPU on a Xilinx KV260 to run DOS games with original 3D rendering at 100 MHz. The post details the fixed‑point pipeline, stage breakdown, and memory subsystem needed to sustain one pixel per clock.
This blog post revisits Lucasart's 1996 game "Afterlife," a unique SimCity-like game where players manage Heaven and Hell, offering strategies for new and returning players. It details specific game mechanics, zoning tactics, and common pitfalls to help optimize soul collection and progress.
The US Strategic Petroleum Reserve stores 714 M barrels in ~60 underground salt‑caverns excavated by water dissolution, a cheap, low‑permeability solution that protects against attack and enables rapid drawdown, but requires brine handling and careful cavern monitoring.
Rheinmetall has open‑sourced onboardapi 9.10.0, a C++ middleware that uses DDS (XTypes, XCDR2) for low‑latency, backward‑compatible data exchange between sensors and software. The library includes Java, C#/.NET, and Python wrappers and comprehensive docs.
A biographical sketch of Jean‑Pierre Serre, covering his early life, education, involvement with Bourbaki, academic positions, and his seminal work on spectral sequences that earned him the Fields Medal.
A 174‑line PHP shim for `http_build_url()` was published in 2014, ended up with ~20 M installs, and is now deprecated in favor of the PHP‑League URI library and the native URI API in PHP 8.5.
Built a clean‑room OpenGL ES 3.0 Linux driver for Apple‑silicon M4/A18 Pro GPUs in ~4 weeks, covering reverse‑engineered firmware ABI, a Rust kernel driver, a custom IR/shader compiler, and user‑space Metal translation; achieved 200 fps Minecraft and WebGL demos, with heavy LLM assistance for debugging and code generation.
Numberwang is a tiny character‑level CNN packaged as a 1.8 MB JSON model and a ~100‑line pure‑Python inference script that classifies numeric strings in eleven languages without any external dependencies. It reaches 88.9 % macro‑F1 on a held‑out set, but struggles with unseen arithmetic expressions.
TypeSafe AI announced its first “System One” model, Jev, a non‑text‑generating LLM that outputs type‑safe structured decisions with calibrated probabilities. It claims 40‑200× lower latency (70‑500 ms) and 100‑500× lower cost versus frontier LLMs, no hallucinations, and parallel sampling. The post includes a side‑by‑side demo, a custom “workflow” benchmark comparing Jev to GPT‑5.6/6 and other mod…
The post introduces the *Matthew Effect* in RL‑fine‑tuning of LLMs—performance gains concentrate on tasks the model already solves— and proposes *Never Give Up* (NGU), an adaptive sampling scheme that uses a small k for easy prompts and retries hard prompts with a high‑probability “never give up” loop. Experiments on math (AIME, GSM8k), code (Manufactoria), and larger‑scale setups (DeepScaler) sh…
A personal how‑to for physically cutting large paperback books into smaller, hand‑held volumes using a knife, glue, and a manila folder. No engineering content.
A MathOverflow discussion argues that AI‑driven proof generation threatens the open, collaborative nature of mathematics, proposing human‑only attribution and mandatory disclosure of AI methodology as possible safeguards.
The author argues that despite headline successes (e.g., Navier‑Stokes proof, security exploits), current frontier LLMs still require heavy human oversight and rigorous specifications that are costly to produce. Reward‑hacking, narrow generalization, and the need for domain‑expert spec writing limit autonomous deployment to only a few niche domains (high‑failure‑cost work, tightly defined tasks,…
The author records 46 classic DOS game soundtracks on seven MIDI modules (Roland SC‑55, SC‑VA, Yamaha MU80, S‑YXG50, etc.), shares 322 lossless recordings plus REAPER project files, and documents a repeatable workflow for extracting MIDI from DOSBox, cleaning it, and rendering audio on hardware and software synths.
TSMC’s upcoming A14 NanoFlex Pro node promises the world’s smallest SRAM cell (<0.017 µm²) and up to 30% power savings, with a 10‑15% speed boost and ~20% density increase over N2. The platform also introduces TSV and RDL innovations for 4.5 µm SoIC bonding, targeting volume production in 2028.
Pizza Bot is an open‑source inbox for long‑running LLM‑based agents. It runs a stateful DeepAgents/LangGraph runtime behind an HTTP/SSE API server, with Electron, web, and CLI front‑ends. The tool supports multiple model providers (Bedrock, Anthropic, Gemini, OpenAI, OpenRouter, Ollama), checkpointed runs, human‑in‑the‑loop approvals, and a plugin/skill system. The repo includes a clear monorepo…
Guix-Modules is a new tool that generates Environment Modules files from Guix packages, allowing HPC users to leverage Guix's reproducible software environments with their familiar `module` command interface. This bridges the gap between traditional HPC environment management and Guix's declarative, reproducible approach.
