Ti-84 Evo

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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.

New research suggests people can communicate and practice skills while dreaming

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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

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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.

Ask HN: Who is hiring? (May 2026)

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

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

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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.

Whimsical Animations Course Open House

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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.
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.

Credit cards are vulnerable to brute force kind attacks

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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.

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

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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

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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.

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.

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

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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.

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.

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.

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.

AI uses less water than the public thinks

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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.

Artemis II Fault Tolerance

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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.

Understand Anything

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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.

Spotify adds 'Verified' badges to distinguish human artists from AI

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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.

The Shadow Glass

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In 1581, Doctor John Dee, mathematician, scientist, experimental occultist, and court astronomer to Queen Elizabeth I, began attempts to communicate with angelic beings. A year later, he and a scryer, Edward Kelley, began to transcribe Enochian, the speech of the angels that Kelley purported to decipher during their rituals. Sometime in the next few years, while traveling through Bohemia and ...

Historic Tennessee Hotel Is Also Home to the Greatest Duck Tradition (2016)

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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.

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

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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.

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.

Ubuntu servers taken offline by "sustained, cross-border attack"

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Ubuntu and Canonical servers were knocked offline due to a DDoS attack, preventing normal communication and OS updates. Updates remain available from mirror sites, but officials have maintained silence since the outage began.

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.

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.

A Letter from Dijkstra on APL (1982)

Dijkstra's comments on APL are ironic as Ken Iverson invented APL notation for communication, not computer implementation. APL can be used for formal manipulations and computations, as demonstrated by examples in the text.

An open letter asking NHS England to keep its code open

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The NHS is walking back its commitment to open-source code, which requires more work but ensures higher quality and security. We urge NHS England to reaffirm its commitment to the NHS Service Standard Principle 12.

AWS stops billing Middle East cloud customers as repairs to war damage drag on

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Amazon's cloud services in the Middle East will take several months to fully recover from Iranian drone strikes that damaged data centers in UAE and Bahrain. AWS customers are advised to migrate resources to other regions and use remote backups until normal operations are restored.

Your website is not for you

Decision-makers often forget that a website is for the customer, not themselves. They should prioritize user needs over personal preferences.