Ti-84 Evo

https://education.ti.com/-/media/ti/education/images/products/product-details/graphing/84-series/84-evo-shared/overview-evo-animated-screen-math-tools-v2.gif?rev=3e5c20f1-f86c-4050-9cb5-9230c63a8684&la=en&h=420&w=480&hash=C7678842D23A4F35210353A5A2B4B4AF
The input is a JSON object containing a list of commands for a text editor. The commands include editing text, formatting options, and inserting links and images.

Artemis II Photo Timeline

https://artemistimeline.com/web/9608627.jpg
An interactive photo timeline of NASA's Artemis II mission — scrub through every crew moment, lunar flyby shot, and audio clip from April 1–10, 2026.

New research suggests people can communicate and practice skills while dreaming

https://media.newyorker.com/photos/69f38c2c92c2d134aec145ec/2:2/w_2560%2Cc_limit/image2%2520(4).jpeg
Scientists have been studying sleep learning, where people learn new information while asleep, and found promising results, but early studies were flawed. Recent research has shown that sleep can influence behavior and learning, with some people able to solve puzzles and remember information after waking.

The smelly baby problem

https://substackcdn.com/image/fetch/$s_!R2s5!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F8129d89b-1971-46f3-b369-7ada7a1d33c8_1024x686.jpeg
Benjamin Spock's 1946 book "Baby and Child Care" advised parents on childcare, while Procter & Gamble developed the first disposable diaper, Pampers, in 1961. Disposable diapers became a market leader, with Huggies eventually surpassing Pampers and dominating the market by the 1990s.

Good developers learn to program. Most courses teach a language

https://evilgeniuslabs.ca/img/og-default.png
A senior developer argues that programming is not just about learning a language's syntax, but about understanding how a system goes together, where data flows, and which decisions are cheap to change. This requires a decade of experience and cannot be taught in a six-week curriculum.

A Report on Burnout in Open Source Software Communities (2025) [pdf]

Open source maintainers face burnout due to lack of payment and unsustainable expectations. This leads to a crisis in the open source community, affecting mental health and self-worth.

I'm Peter Roberts, immigration attorney who does work for YC and startups. AMA

The user discusses various US immigration topics including the new $100k H1B fee, N400 application delays, L1 visa changes, and green card application challenges. They also mention the difficulties of sponsoring H1-B workers for permanent status and the increasing RFE and denial rates for certain green card applications.

Eka’s robotic claw feels like we're approaching a ChatGPT moment

https://media.wired.com/photos/69f11c49423c2e71c99af00a/master/w_1600%2Cc_limit/20260320-wired-eka-robotics-1221.jpg
A startup called Eka is developing a robot with advanced dexterity, allowing it to perform tasks like screwing in a light bulb and handling food. The robot's creators believe their approach could revolutionize robotics and enable robots to work in various settings.

Lib0xc: A set of C standard library-adjacent APIs for safer systems programming

https://opengraph.githubassets.com/2c64935df94582561c7e37aaec96ca8dc23a30a38d207948e200f8457546e6a2/microsoft/lib0xc
lib0xc is a C library that aims to make systems programming safer by providing safer APIs and utilities. It uses the C preprocessor to expose its API surface and leans heavily on clang bounds safety extensions.

Ask HN: Who is hiring? (May 2026)

Here are the job postings summarized in 2 concise English sentences each, not exceeding 200 characters:

Direct electrochemical black coffee quality appraisal using cyclic voltammetry

https://media.springernature.com/w215h120/springer-static/image/art%3A10.1038%2Fs41598-024-80385-3/MediaObjects/41598_2024_80385_Fig1_HTML.png
Despite coffee’s popularity, there are no quantitative methods to measure a chemical property of a black coffee drink in situ and relate it to a flavor experience. Here we show that cyclic voltammetry can be used without any additional sample preparation to directly measure the strength of a coffee beverage and, separately, how dark the coffee has been roasted; these two properties are ...
https://opengraph.githubassets.com/d7888a7f657264301cd0dccad9a87210c3c0bd3c6b992abd756013f161f54f2c/whohas/whohas
whohas is a command line tool that queries package lists from various distributions. It displays package version information, URLs, and repository details for specified packages.

Whimsical Animations Course Open House

https://courses.joshwcomeau.com/images/covers/01-particles.png
You've made some course lessons public for preview, showcasing your teaching style. Some course features are only available to registered students, but you can still browse lessons using navigation links.

Show HN: WhatCable, a tiny menu bar app for inspecting USB-C cables

https://raw.githubusercontent.com/darrylmorley/whatcable/main/docs/screenshot.png
WhatCable is a macOS menu bar app that identifies USB-C cables and their capabilities. It exposes cable information, charging diagnostics, and connected device identities via a friendly menu bar popover.

SpaceX rocket set for unintentional moon landing – well, a piece of it anyway

https://regmedia.co.uk/2017/01/10/moon.jpg
A Falcon 9 upper stage is expected to hit the Moon on August 5, traveling at 5,400 miles per hour. The impact poses little risk as there are no humans on the Moon and debris is unlikely to strike nearby probes.

City Learns Flock Accessed Cameras in Children's Gymnastics Room as a Sales Demo

https://storage.ghost.io/c/0f/76/0f76b548-bc58-4f25-abc3-3f5ebca07da4/content/images/2026/04/CleanShot-2026-04-30-at-06.16.58@2x.png
Flock employees accessed cameras in sensitive locations in Dunwoody, including a children's gymnastics room and a Jewish community center, as part of sales demonstrations. Flock has agreed to stop using Dunwoody's cameras for demonstrations and will train employees to conduct demos in more public locations.

Apocalypse Early Warning System

The site tracks business jets using FAA registry data and ADS-B Exchange heatmap files, comparing current airborne counts to historical baselines for anomalies. It estimates max people on board by mapping aircraft models to published capacities and scaling unknowns by average.

Show HN: AI CAD Harness

https://fusion.adam.new/opengraph-image?bfdae25aab0c7a47
Install AdamFusion by dropping the bundle into Fusion's AddIns or plug-in folder, then run and enable it. Sign in with your Autodesk account to start chatting in the Adam palette.

The gay jailbreak technique

A novel technique exploits AI guardrails by requesting information in a gay voice, using political correctness to bypass alignment. This "Gay Jailbreak" method is highly flexible and can be used to obtain sensitive information.

Visual Studio 2026 still ships the form designer Alan Cooper drew in 1987

https://evilgeniuslabs.ca/img/og-default.png
WinForms, a UI framework, has survived 24 years on modern .NET with a designer that resembles VB6, due to its durable architecture built on top of the Win32 API. Despite Microsoft's attempts to replace it, WinForms remains the path of least resistance for line-of-business apps, thanks to its strong typing, event model, and compatibility guarantee.

Credit cards are vulnerable to brute force kind attacks

https://metin.nextc.org/static/5/receipt.jpg
The user's credit card was stolen despite being stored on a secure website that followed PCI DSS standards, highlighting vulnerabilities in the system that allowed attackers to brute force the card number. The attackers used multiple endpoints and APIs to test credit card numbers at a rate of 6 requests per second, eventually obtaining the card number and making unauthorized transactions.

Ask HN: Who wants to be hired? (May 2026)

Multiple individuals are seeking freelance, contract, or full-time work in various tech fields, including software engineering, DevOps, AI, and UX design, with experience in languages such as Python, Java, JavaScript, and more. They are open to remote work and are located in different parts of the world, including the US, Europe, and India.

Understand Anything

https://raw.githubusercontent.com/Lum1104/Understand-Anything/main/assets/hero.png
Understand Anything is a Claude Code Plugin that analyzes a codebase with a multi-agent pipeline, building a knowledge graph of every file, function, class, and dependency for interactive exploration. It provides an interactive dashboard to visualize the codebase as a graph, allowing users to search, explore, and ask questions about the codebase.

Artemis II fault tolerance

https://alearningaday.blog/wp-content/uploads/2014/05/bnw.jpg
NASA's Artemis II computer has 8 CPUs with self-checking pairs for redundancy, allowing it to safely ride through errors. The system also employs multiple redundancies, including triple-modular-redundant memory and a backup flight software system.

AI uses less water than the public thinks

https://i0.wp.com/californiawaterblog.com/wp-content/uploads/2026/04/Jay-Lund-AI-Data-Center-Water-Use-Blog-a69cdd4e-f8cd-470e-873c-e908e28cbc2b-1024x683.png?resize=1024%2C683&ssl=1
Artificial intelligence's water use in California is mostly modest, about 0.055 percent of annual human water use. Data centers' water use is mostly for cooling needs from the heat produced from their electricity use.

Tvheadend: Self-Hosted IPTV Server

https://tvheadend.org/assets/site-image-u30kbobe.png
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Spotify adds 'Verified' badges to distinguish human artists from AI

https://ichef.bbci.co.uk/news/480/cpsprodpb/d379/live/9f35a8f0-4545-11f1-8ea3-630273c214ab.jpg.webp
Spotify introduces 'Verified by Spotify' badge to identify human artists, with over 99% of searched artists to be verified. The badge will prioritize acts with significant music contributions, but critics argue it may favor commercial artists and not address AI-generated music.

Historic Tennessee hotel is also home to the greatest duck tradition (2016)

https://media.audubon.org/sfw_duck-march-antony.jpg?width=1200&height=630&auto=webp&quality=90&fit=crop&enable=upscale
The Peabody Hotel in Memphis, Tennessee, has a 83-year-old tradition of the Peabody Duck March, where five resident Mallards march through the hotel lobby. The ducks are cared for by the hotel's duckmaster, Anthony Petrina, who ensures their well-being and follows the legacy of the hotel's first duckmaster, Edward Pembroke.

Running Adobe's 1991 PostScript Interpreter in the Browser

The HP C2089A PostScript Cartridge Plus is a 1991 add-on for LaserJet II/III that still renders PostScript correctly today. retro-ps emulates the cartridge on a modern system, lifting its original constraints to render high-DPI pages with any paper size.

Sally McKee, who coined the term "the memory wall", has died

https://www.online-tribute.com/memorial/uploads/photo/page-1899-2696-17423572810.jpeg
Sally A. McKee, a renowned computer science professor, passed away on Feb 12 after a short illness. She was a beloved friend, mentor, and researcher who advanced cybersecurity and inspired many with her kindness and generosity.