Any Color You Like: NIST Scientists Create 'Any Wavelength' Lasers

67 rbanffy 2026-04-18 21:05:43 UTC nist.gov Llama Share 28

Scientists at NIST have developed a way to make integrated circuits for light, which could power emerging technologies like AI, quantum computers, and optical atomic clocks. The new technique allows for the creation of complex circuits that can manipulate light in various ways, potentially making these technologies more powerful and portable.

The electromechanical angle computer inside the B-52 bomber's star tracker

226 NelsonMinar 2026-04-18 17:05:43 UTC righto.com Llama Share 69

Before GPS, aircraft navigated using celestial navigation, which was automated in the 1960s with the development of the Astro Compass system that used an electromechanical analog computer called the Angle Computer. The Angle Computer physically modeled the celestial sphere to solve the navigational triangle and provide accurate heading and position information to the aircraft navigator.

Thoughts and feelings around Claude Design

165 cdrnsf 2026-04-18 20:05:43 UTC samhenri.gold Llama Share 112

The author thinks Figma's systemization led to a complex, manual design process that's being replaced by code as the source of truth. This shift will make Figma's infrastructure look outdated.

Optimizing Ruby Path Methods

29 weaksauce 2026-04-18 21:05:43 UTC byroot.github.io Llama Share 13

The author optimized Ruby's Bootsnap and File.join methods to improve performance, reducing setup time and boot time in Ruby applications. The optimizations included load path caching, reducing syscalls, and implementing fast paths for UTF-8 and ASCII encodings.

Modern Common Lisp with FSET

46 larve 2026-04-18 21:05:43 UTC fset.common-lisp.dev Full Share 1

Top (Modern Common Lisp with FSet)

Migrating from DigitalOcean to Hetzner

646 yusufusta 2026-04-18 14:05:43 UTC isayeter.com Llama Share 336

A company migrated from DigitalOcean to Hetzner dedicated servers with zero downtime, saving $14,388 per year. The migration involved six phases, including MySQL replication, DNS TTL reduction, and reverse proxy setup.

State of Kdenlive

319 f_r_d 2026-04-18 12:05:43 UTC kdenlive.org Llama Share 106

The Kdenlive team made significant progress in 2025, releasing new features, bug fixes, and improvements to the user interface, with a focus on stability and community support. The team is now looking ahead to upcoming features, including 10/12 bit color support, playback optimizations, and OpenFX support, and is grateful for community contributions and donations that enable continued development.

What Is Llms.txt and Does Your Business Need One?

3 alihassaan 2026-04-18 22:29:43 UTC semarkglobal.com Prefix Share 1

You may have seen mentions of a file called llms.txt and wondered whether your business website needs one. The honest answer depends entirely on what kind of website you run. Short answer: llms.txt is a Markdown file you place in your website's root directory to help AI models understand your content. It was proposed in September 2024, and over 844,000 websites have adopted it according ...

Traders placed over $1B in perfectly timed bets on the Iran war

179 trocado 2026-04-18 19:05:43 UTC theguardian.com Llama Share 110

Large online betting markets like Polymarket and Kalshi allow bets on news events, raising concerns of insider trading. Regulators face challenges in enforcing laws due to the complexity of the issue and the use of anonymized trading platforms.

Dad brains: How fatherhood rewires the male mind

3 tchalla 2026-04-18 22:25:43 UTC bbc.com Prefix Share 0

From before their babies are born, men undergo serious hormonal changes that can powerfully influence their behaviour – with consequences for their child's wellbeing. In the months before my son was born, my partner and I attended an active birth workshop, a breastfeeding session and the hospital-run antenatal course, read a small pile of pregnancy and baby books and scrolled through ...

Show HN: MDV – a Markdown superset for docs, dashboards, and slides with data

77 drasim 2026-04-18 16:05:43 UTC github.com/drasimwagan Llama Share 29

The user writes documents, dashboards, and slides in a Markdown superset using a theme and named styles. The rendered output is self-contained HTML and PDF, and can be previewed live in VS Code with auto-reload.

Michael Rabin has died

372 tkhattra 2026-04-18 07:05:43 UTC en.wikipedia.org Llama Share 78

Michael Oser Rabin was an Israeli mathematician and computer scientist who co-received the 1976 ACM Turing Award for work on computational complexity. He made significant contributions to computer science, including the Miller-Rabin primality test and the Rabin-Karp string search algorithm.

Sumida Aquarium Posts 2026 Penguin Relationship Chart, with Drama and Breakups

150 Lwrless 2026-04-18 13:05:43 UTC sumida-aquarium.com Full Share 5

The 2026 edition of our penguins relationship chart is finally here! It's fun, adorable, and as complicated as always!

PgQue: Zero-Bloat Postgres Queue

58 gmcabrita 2026-04-18 17:05:43 UTC github.com/nikolays Llama Share 4

PgQue is a Postgres queue architecture that runs on any Postgres platform, managed providers included, with zero-bloat queue pattern and snapshot-based batching. It provides event-driven fan-out and a language-agnostic SQL API.

Graphs that explain the state of AI in 2026

63 bryanrasmussen 2026-04-18 18:05:43 UTC spectrum.ieee.org Llama Share 39

AI capabilities continue to accelerate with notable model releases and increased investment, but public perception remains mixed with concerns over AI's impact on society and job displacement. The 2026 Stanford AI Index report highlights trends in AI adoption, investment, and public perception, with varying results depending on the task or question at hand.

Floating Point Fun on Cortex-M Processors

23 hasheddan 2026-04-18 20:05:43 UTC danielmangum.com Llama Share 1

The Arm compiler flag -mfloat-abi controls three floating point Application Binary Interface (ABI) options: soft, softfp, and hard, which determine how floating point operations are handled. The choice of ABI affects how arguments are passed to subroutines and whether floating point instructions can be used within routines.

College instructor turns to typewriters to curb AI-written work

82 gnabgib 2026-04-18 19:05:43 UTC sentinelcolorado.com Llama Share 76

Grit Matthias Phelps, a Cornell University instructor, introduced manual typewriters to her German language class to prevent AI use and teach students the value of writing without digital assistance. The "analog" assignment allowed students to experience the raw feeling of typing without screens, online dictionaries, or delete keys.

UpCodes (YC S17) is hiring SDRs to help make construction more productive

0 2026-04-18 17:05:43 UTC up.codes Full Share

We’re looking for talented and motivated people who can help us build easy-to-use compliance and product research tools. Learn about our culture and explore open positions.

Opus 4.7 to 4.6 Inflation is ~45%

382 anabranch 2026-04-18 17:05:43 UTC tokens.billchambers.me Full Share 401

Anonymous request-token comparisons from the community, showing how Opus 4.6 and Opus 4.7 differ on real inputs Open source · stored rows contain anonymous submission IDs onlyNot affiliated with or endorsed by Anthropic.

Show HN: AI Subroutines – Run automation scripts inside your browser tab

23 arjunchint 2026-04-18 19:05:43 UTC rtrvr.ai Llama Share 2

The user discusses a web agent that solves the wrong half of the problem by recording network requests, but fails to handle authentication and volatile operation identifiers. They propose a solution called Subroutines that records tasks in-page, ranks and trims requests, and generates deterministic scripts for reliable web automation.

Show HN: SmallDocs - Markdown without the frustrations

39 FailMore 2026-04-18 18:05:43 UTC news.ycombinator.com Llama Share 22

SmallDocs (SDocs) is a CLI + webapp for privately previewing and sharing markdown files with customizable styling and chart rendering. It ensures 100% privacy by storing content in compressed base64 in the URL fragment, never sent to the server.

Show HN: Remoroo. trying to fix memory in long-running coding agents

22 adhamghazali 2026-04-18 18:05:43 UTC remoroo.com Full Share 3

Remoroo runs autonomous experiments on your code — locally, overnight. It edits, trains, evaluates, keeps or reverts. You wake up to a better model.

Scientists discover "cleaner ants" that groom giant ants in Arizona desert

65 t-3 2026-04-18 16:05:43 UTC sciencedaily.com Llama Share 25

Scientists discovered a unique partnership in Arizona's desert where tiny cone ants act as "cleaners" for larger harvester ants, licking and nibbling their bodies. This behavior is the first known example of one ant species cleaning a much larger ant, similar to cleaner fish in the ocean.

80386 Memory Pipeline

74 wicket 2026-04-18 14:05:43 UTC nand2mario.github.io Llama Share 11

The 80386's memory pipeline is a carefully engineered combination of latency-hiding techniques that allows protected virtual memory to perform close to physical memory, making it a practical foundation for serious PC operating systems. The FPGA 386 core's memory pipeline design aims to map the historical 386 memory pipeline to modern FPGAs while achieving high Fmax and low CPI, with ...

Amiga Graphics Archive

224 sph 2026-04-18 07:05:43 UTC amiga.lychesis.net Full Share 67

Launched in 1985 the Commodore Amiga boasted graphics capabilities that were unsurpassed for it's time. It featured an intricate collection of custom chips that enabled it to do things that, until then, had been impossible to achieve with other personal computers. This site is dedicated to graphics made with or for the Commodore Amiga home computer.

In the AI propaganda war, Iran is winning

15 hebelehubele 2026-04-18 19:05:43 UTC economist.com Llama Share 4

Saddam Hussein's information minister Muhammad Saeed al-Sahaf made false claims about Baghdad's safety during the 2003 invasion. His statements were contradicted by fleeing Iraqi soldiers behind him.

4-bit floating point FP4

32 chmaynard 2026-04-18 18:05:43 UTC johndcook.com Llama Share 17

Floating point numbers with less precision, such as 4-bit floating point numbers, are used in neural networks to fit more parameters into memory. The 4-bit floating point number format, FP4, uses the first bit for sign and the remaining three bits for exponent and mantissa, with different formats like E2M1 having unevenly spaced values on both log and linear scales.

Understanding the FFT Algorithm (2013)

42 peter_d_sherman 2026-04-18 16:05:43 UTC jakevdp.github.io Llama Share 5

The Fast Fourier Transform (FFT) is a fast algorithm to compute the Discrete Fourier Transform (DFT) with a time complexity of O[N log N]. It was introduced by JW Cooley and John Tukey in 1965 and exploits symmetries in the DFT computation to achieve this speedup.

Fuzix OS

69 DeathArrow 2026-04-18 16:05:43 UTC fuzix.org Llama Share 25

Fuzix kernel 0.4 has bug fixes, improved interfaces, and a reworked networking layer for modularity. It supports various 8-bit and 16-bit processors.

Category Theory Illustrated – Orders

219 boris_m 2026-04-18 07:05:43 UTC abuseofnotation.github.io Llama Share 58

Orders are sets of elements with a binary relation that obeys laws of reflexivity, transitivity, antisymmetry, and totality, defining linear and partial orders. Removing laws from orders results in different structures, such as preorders and equivalence relations, which have various applications in mathematics and computer science.