Moon

3048 todsacerdoti 2024-12-17 17:26:26 UTC 249 ciechanow.ski Llama Share

The Moon's motion is influenced by gravity, with its orbit around Earth shaped by the Sun's gravitational pull and the Moon's own rotation and tidal interactions with Earth. The Moon's appearance in the sky changes due to its elliptical orbit, librations, and Earth's rotation, making it visible for only 59% of its surface from our planet.

Getting to 2M users as a one woman dev team [video]

714 vinnyglennon 2024-12-17 13:53:42 UTC 259 brightonruby.com Llama Share

Nadia Odunayo is the founder and CEO of The StoryGraph, a reading community app. She's a software engineer with a background at Pivotal Labs and Makers Academy in London.

FTC bans hidden junk fees in hotel, event ticket prices

631 LordAtlas 2024-12-17 20:36:07 UTC 645 cnbc.com Llama Share

The US Federal Trade Commission passed a rule requiring upfront disclosure of total prices including fees for ticket sellers, hotels, and vacation rental sites. The rule aims to save consumers 53 million hours per year by preventing hidden fees.

After 3 Years, I Failed. Here's All My Startup's Code

531 gniting 2024-12-17 12:38:11 UTC 264 dylanhuang.com Llama Share

Konfig, a developer tools startup, open-sourced its entire codebase after failing to achieve hyper-growth with its API integration tools. The codebase includes SDK Generator, API documentation, and testing tools, and is available on GitHub.

ISO 8583: The language of credit cards

398 ekmartin 2024-12-17 15:53:52 UTC 77 increase.com Llama Share

ISO 8583 is a standard for real-time messages between acquirers and issuers through major card networks, simplifying the process by abstracting away complexity. The standard defines a basic message structure with a message type indicator, bitmap, and fields, with flexibility in serialization and nested sub-messages.

MIT study explains why laws are written in an incomprehensible style

364 keepamovin 2024-12-17 03:52:26 UTC 415 news.mit.edu Llama Share

Researchers at MIT found that convoluted language in legal documents conveys authority, not just complexity. They discovered that even non-lawyers use this style when writing laws, suggesting it's a deliberate choice.

How I used linear algebra to build an interactive diagramming editor

297 binshu 2024-12-17 06:10:26 UTC 46 medium.com/@ivan.ishubin Llama Share

The author used matrices to solve complex problems in their interactive diagramming editor Schemio, particularly when adding item hierarchy and handling transformations, scaling, and pivot points. By applying matrix multiplications and inverses, the author was able to create a structured and manageable system for transforming local points to world points and vice versa, enabling seamless ...

Ham radio operators receive signals from Voyager 1 on Dwingeloo telescope

281 ForHackernews 2024-12-17 09:56:04 UTC 120 camras.nl Llama Share

The Dwingeloo radio telescope received signals from Voyager 1, a 25 billion km distant spacecraft, using a new antenna due to frequency mismatch. The signals were faint and required Doppler shift correction for analysis, but cannot be used for communication.

Blackmagic Debuts $30K 3D Camera for Capturing Video for Vision Pro

265 tosh 2024-12-17 14:18:53 UTC 296 macrumors.com Llama Share

Blackmagic's URSA Cine Immersive camera is now available for pre-order at $30,000, capturing 3D content for the Vision Pro with 8K resolution and 16 stops of dynamic range. Apple is working on several new products including a redesigned Magic Mouse, second-generation AirTag, and a new Apple TV.

Launch HN: Langfuse (YC W23) – OSS Tracing and Workflows to Improve LLM Apps

214 mdeichmann 2024-12-17 13:43:29 UTC 62 github.com/langfuse Llama Share

Langfuse uses Github Discussions for support and hiring. It's a self-hosted LLM platform with SDKs for Python and JS/TS.

Show HN: I built an open-source data pipeline tool in Go

196 karakanb 2024-12-17 16:40:31 UTC 46 github.com/bruin-data Llama Share

Bruin is a data pipeline tool that ingests, transforms, and validates data across various platforms. It allows running pipelines in different environments and automatically detects credentials for dry-run validation.

Developing Developers (2015)

191 danielam 2024-12-17 12:46:16 UTC 105 felleisen.org Llama Share

Northeastern University's computer science curriculum focuses on explicit and systematic approaches to program design, teaching students to think like engineers and problem solvers, not just programmers. The curriculum includes core courses such as Fundamentals I and II, Logic in Computer Science, Object-Oriented Design, and Software Development, which emphasize design, people skills, and ...

Crunch – a Scheme compiler with a minimal runtime

188 sjamaan 2024-12-17 12:18:05 UTC 69 more-magic.net Llama Share

Felix Winkelmann created CRUNCH, a compiler for a statically typed subset of Scheme, to produce efficient C code for performance-sensitive applications. CRUNCH is integrated with CHICKEN Scheme and supports features like type inference, optimizations, and UNICODE support.

Waymo will bring autonomous vehicles to Tokyo

184 EvgeniyZh 2024-12-17 03:17:05 UTC 119 waymo.com Llama Share

Waymo is partnering with Nihon Kotsu and GO to bring autonomous vehicles to Tokyo for testing and learning. The goal is to adapt to left-hand traffic and serve Tokyo's residents while ensuring safety and performance.

Includeable minimal operating system for C++

183 we-do-not-sow 2024-12-17 21:29:52 UTC 46 includeos.org Llama Share

IncludeOS allows cloud applications to run without an OS, providing secure, efficient virtual machines. It requires dependencies like clang or gcc for services like the hello_world example.

Natural Number Game: build the basic theory of the natural numbers from scratch

182 mildog8 2024-12-17 10:06:22 UTC 31 adam.math.hhu.de Llama Share

The game recreates natural numbers from Peano axioms and introduces theorem proving in Lean. It covers unions, intersections, and complements of sets in a mostly self-contained introduction to constructive logic.

Design Token-Based UI Architecture

174 mpweiher 2024-12-17 22:04:26 UTC 134 martinfowler.com Llama Share

Design tokens are design decisions represented as data, serving as a single source of truth for design and engineering teams. They enable automated code generation, faster updates, and improved consistency across platforms.

In Defense of Y'All

164 scour 2024-12-17 20:12:18 UTC 356 texasmonthly.com Llama Share

The New York Times dismissed "y'all" as a slangy, regional term, but it's a useful word for addressing groups of people without gender implications. Texans have long shared "y'all" with Northerners, and its utility is now recognized across the English-speaking world.

The Headlight Brightness Wars

163 throw0101b 2024-12-17 17:43:05 UTC 196 theringer.com Llama Share

Two Reddit users, Paul Gatto and Victor Morgan, are leading a crusade against bright headlights, citing concerns over glare and safety. They argue that the auto industry's focus on increasing headlight brightness is misguided and that a simpler solution is to make the lights less bright.

Running NetBSD on IBM ThinkPad 380Z

163 jaypatelani 2024-12-17 04:51:26 UTC 63 luke8086.dev Llama Share

A user restored a 25-year-old ThinkPad 380Z and successfully installed NetBSD, a lightweight BSD operating system. NetBSD provided a smooth experience, supporting the laptop's hardware and allowing for modern software use.

The Night Watch [pdf] (2013)

160 isaiahwp 2024-12-17 11:29:26 UTC 26 scholar.harvard.edu Llama Share

The author is a systems hacker who believes that true progress is a fantasy and that the world is on the brink of collapse. They think that systems hackers are the only ones who can truly understand the daily tragedies of their life.

Make your QEMU faster (2022)

147 tripdout 2024-12-17 04:56:39 UTC 22 linus.schreibt.jetzt Llama Share

The author improved QEMU's performance by replacing a linked list with a hash table to look up open files in a 9p connection. This reduced a test's duration from over 2 hours to 7 minutes.

Huge math error corrected in black plastic study; authors say it doesn't matter

143 ars 2024-12-17 00:52:41 UTC 89 arstechnica.com Llama Share

A study on toxic flame retardants in black plastic products made a math error, overestimating exposure by an order of magnitude. The corrected study still finds that flame retardants significantly contaminate plastic products, but at lower levels than initially reported.

Torpedo juice: Legendary, illegal WWII liquor drunk in Alaska and the world

128 speckx 2024-12-17 03:28:18 UTC 81 adn.com Llama Share

During World War II, American servicemen created a potent liquor called torpedo juice by draining alcohol from torpedoes and mixing it with juice. The drink was popular in the Pacific theater, but its production and consumption often led to tragic consequences, including deaths and blindness.

Show HN: Adventures in OCR

118 bambax 2024-12-17 17:00:54 UTC 45 blog.medusis.com Llama Share

The user is working on creating a digital version of the 18th-century memoirs "Les Mémoires de Saint-Simon" by OCRing a scanned edition and parsing the output to create a searchable and readable text. The user has developed a system to identify page zones, remove footnotes and comments, and reconstruct the text, but still requires manual input and review for accuracy.

When should we require that firmware be free?

112 AndrewDucker 2024-12-17 09:49:17 UTC 141 mjg59.dreamwidth.org Full Share

Hello, you've been (semi-randomly) selected to take a CAPTCHA to validate your requests. Please complete it below and hit the button!

FastVideo: a lightweight framework for accelerating large video diffusion models

109 zhisbug 2024-12-17 20:56:01 UTC 24 github.com/hao-ai-lab Llama Share

FastHunyuan achieves 8X diffusion speed boost with FastVideo framework, recommended to use 80GB GPU for training. Inference commands and preprocessed data are provided for FastHunyuan and Mochi models.

A pilot crashed a full passenger jet into the bay, didn't lose his job (2021)

109 Stratoscope 2024-12-17 18:40:00 UTC 104 sfgate.com Llama Share

Japan Air Lines Flight 2 made a successful emergency landing in San Francisco Bay on November 22, 1968, with no injuries. Captain Kohei Asoh's self-blame for the incident, saying "I f--ked up," helped him preserve his career and became a management training example.

CRDTs and Collaborative Playground

108 emreb 2024-12-17 20:16:38 UTC 8 cerbos.dev Llama Share

Cerbos uses Conflict-Free Replicated Data Types (CRDTs) to enable real-time collaboration in its Playground, simplifying authorization logic and enhancing productivity among teams. The company leverages Yjs, a battle-tested CRDT library, to facilitate seamless data synchronization and resolution across multiple users and services.

Northern Ireland police unlawfully put reporters under surveillance

104 campuscodi 2024-12-17 18:30:23 UTC 27 reuters.com Full Share

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Using GPS satellites to detect tsunamis via ionospheric ionization waves

99 Gedxx 2024-12-17 14:50:01 UTC 38 earthdata.nasa.gov Llama Share

Scientists use GNSS signals to calculate Total Electron Content (TEC) in the ionosphere, which helps detect natural hazards like tsunamis. The GUARDIAN system uses GNSS data to monitor ionospheric fluctuations and provide early warnings for tsunamis in the Pacific region.

Multilspy: Building a common LSP client handtuned for all Language servers

97 LakshyAAAgrawal 2024-12-17 06:43:51 UTC 14 github.com/microsoft Llama Share

multilspy is a cross-platform library for querying language servers over the Language Server Protocol. It simplifies the process of using language servers for static analysis and code generation.

Decline in teen drug use continues, surprising experts

83 pseudolus 2024-12-17 23:44:40 UTC 114 arstechnica.com Llama Share

Teen drug use continued to fall in 2024, with a new high of students abstaining from alcohol, marijuana, and nicotine. Experts attribute the decline to the COVID-19 pandemic, which may have started a wave of abstention among teens.

Ozempic increases risk of debilitating eye condition: studies

79 Erikun 2024-12-17 19:24:23 UTC 101 sdu.dk Llama Share

Two Danish studies confirm that Ozempic doubles the risk of NAION, a rare condition causing permanent vision loss. The absolute risk is low, but patients with type 2 diabetes should discuss the pros and cons of treatment with their doctor.

Settlement for Australian users impacted by Cambridge Analytica incident

76 ajdlinux 2024-12-17 02:16:30 UTC 36 oaic.gov.au Llama Share

Australian Information Commissioner agreed to a $50 million payment program from Meta to settle a breach of the Privacy Act 1988. Eligible Australian Facebook users impacted by the Cambridge Analytica matter can apply for payments through a scheme to be administered by an independent third-party.

Haskell vs. Ada vs. C++ vs. an Experiment in Prototyping Productivity (1994) [pdf]

66 mkristiansen 2024-12-17 21:08:34 UTC 94 cs.yale.edu Full Share

SpiceNice – An open source spice database

66 tderflinger 2024-12-17 10:38:07 UTC 25 tderflinger.com Llama Share

SpiceNice is an open source database of culinary spices providing information on spices and their plants. It aims to become a comprehensive database with a community and web API.

Nvidia Jetson Orin Nano Super [video]

64 ralusek 2024-12-17 15:27:10 UTC 50 youtube.com Embed Share

One-Mile-in-Five

56 agronaut 2024-12-17 20:12:43 UTC 7 wwiiafterwwii.wordpress.com Llama Share

The myth of "one-mile-in-five" straight sections on US Interstate highways originated from a 1941 suggestion to place emergency landing strips alongside highways, not from a military requirement for bomber takeoff runs. The actual reason for the Interstate's design was to improve civilian traffic flow and military mobilization, not for bomber dispersal, as the idea of using highways for ...

Visualizing 6D Mesh Parallelism

54 lnyan 2024-12-17 10:26:36 UTC 3 main-horse.github.io Llama Share

The user explains how they visualize the collective communications involved in a simple 2⁶ 6D parallel mesh, focusing on various parallelisms such as data parallelism, tensor parallelism, and pipeline parallelism. They provide a detailed explanation of their mental model, including the use of PyTorch's ZeRO2 and GPipe, and acknowledge the potential for errors in their understanding, inviting ...

Introduction to Wait-free Algorithms in C++ Programming [video]

52 twoodfin 2024-12-17 02:42:06 UTC 5 youtube.com Embed Share

Kevin Langdon's 'Omni' IQ test

48 walterbell 2024-12-17 00:10:22 UTC 55 lumifont.co.uk Llama Share

Kevin Langdon created a 56-question IQ test in 1979 to measure logical problem-solving ability without time limits. The test is designed for those with high IQs, and the author estimates their own IQ to be 169 based on their score.

Alley Cat Remeow Edition

44 justsomehnguy 2024-12-17 01:20:23 UTC 21 joflof.com Llama Share

A user created a remake of the 1983 game Alley Cat, adding new stages and multiplayer modes, while maintaining original graphics and sounds. The remake is available for Windows and can be configured for arcade cabinet play, but porting to Linux and Mac is currently not possible.

Max GPU: A new GenAI native serving stac

39 ivell 2024-12-17 18:50:19 UTC 5 modular.com Llama Share

Modular is releasing MAX 24.6, a platform that redefines AI infrastructure with a vertically integrated Generative AI serving stack. MAX GPU eliminates vendor-specific dependencies and offers high-performance AI model compilation and runtime.

Our first new Framework Laptop 16 Expansion Bay module

37 OuterVale 2024-12-17 09:06:58 UTC 5 frame.work Llama Share

Framework Laptop 16 gets a new module, the Dual M.2 Adapter, for adding storage or high-speed devices. It supports two M.2 devices with full PCIe 4.0 throughput and can add up to 16TB of storage.

Companies issuing RTO mandates "lose their best talent": Study

36 AdmiralAsshat 2024-12-17 20:31:12 UTC 7 arstechnica.com Llama Share

Companies with return-to-office mandates have seen a 14% increase in employee turnover, with senior and skilled employees more likely to leave. This has resulted in companies facing difficulties in finding new talent and filling job vacancies, with hiring costs increasing by 23%.

'What Is That Thing?' Tiny Trucks Are Causing Big Fights

35 JumpCrisscross 2024-12-17 11:43:46 UTC 37 wsj.com Full Share

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The enduring power of kitsch

34 breathenew 2024-12-17 20:13:58 UTC 16 bbc.com Llama Share

Modern art's initial goal was to destroy kitsch, but it often returns to its lure. The fear of kitsch leads to compulsory offensiveness in art, where shock value replaces genuine emotion.

Show HN: PipeGate – A Lightweight, Self-Hosted Proxy to Expose Local Servers

33 jeeybee 2024-12-17 18:09:06 UTC 11 github.com/janbjorge Llama Share

PipeGate is a lightweight proxy built with FastAPI for exposing local servers to the internet. It's customizable and allows developers to create tunnels from their local machine to the external world.

Webhook Tester/Debugger

31 acaor 2024-12-17 18:50:07 UTC 4 hooklistener.com Llama Share

Hooklistener is an online tool for sending, receiving, and managing webhooks with a free plan for personal projects. It offers various pricing plans for freelancers, small businesses, and enterprises with custom support.

Why Companies Overspend on Recruiting and Underspend on Retention

30 ByteBoost 2024-12-17 17:01:04 UTC 15 blackentropy.com Llama Share

Companies spend heavily on recruiting new hires but neglect existing talent, leading to high turnover rates. They should invest in retention strategies to save costs, maintain team morale, and keep essential knowledge in-house.

Early Bronze Age Butchered Human Remains from Charterhouse Warren, Somerset, UK

27 gradus_ad 2024-12-17 18:18:52 UTC 13 cambridge.org Llama Share

The Charterhouse Warren site in Somerset, England, contains the remains of at least 37 people killed and butchered in a single event during the Early Bronze Age. The victims were likely local and the event may have been part of a cycle of revenge arising from social and political pressures within or between Early Bronze Age communities.

AT&T user's erroneous $6,223 bill is reminder that AutoPay can wipe you out

26 speckx 2024-12-17 14:25:36 UTC 14 phonearena.com Llama Share

A woman's AT&T bill suddenly increased from $250 to $6223.60 due to a mistake during her switch to FirstNet. AT&T acknowledged the error, but the issue remains unresolved, leaving her worried about a late fee or account termination.

Tig: Text-Mode Interface for Git

26 pabs3 2024-12-17 06:52:10 UTC 5 jonas.github.io Llama Share

Tig is a ncurses-based text-mode interface for Git that functions as a repository browser and staging tool. It can be reported and discussed on the issue tracker, Git mailing list, or Stack Overflow with the subject 'tig'.

Valhalla – Java's Epic Refactor

25 thunderbong 2024-12-17 06:41:02 UTC 1 inside.java Llama Share

Project Valhalla aims to unify Java's type system by introducing value classes and null-restricted types. It's a 10-year effort nearing completion with features like definite assignment analysis and strict initialization.

Celebrating a Decade of Discourse

22 ksec 2024-12-17 15:51:38 UTC 3 blog.discourse.org Llama Share

Discourse celebrated its 10th anniversary, having grown from a small team to a global platform with 102 team members in 25 countries. The platform now powers over 20,000 communities with 1.65 billion posts made.

Beginning NFC: Introducing NDEF

22 walterbell 2024-12-17 08:03:48 UTC 0 oreilly.com Llama Share

NFC transactions use the NFC Data Exchange Format (NDEF) which is a binary format structured in messages, each containing several records, with each record having a header and a payload. NDEF records can be used to launch apps, send URIs, and store data, and can be formatted in different ways depending on the application and device being used.

Blackmagic Debuts $30K 3D Camera for Capturing Video for Vision Pro

22 mgh2 2024-12-17 03:27:40 UTC 7 macrumors.com Llama Share

Blackmagic's URSA Cine Immersive camera is now available for pre-order at $30,000, capturing 3D content for the Vision Pro with 8K resolution and 16 stops of dynamic range. Apple is working on several new products including a redesigned Magic Mouse, second-generation AirTag, and a new Apple TV.

Never Forgive Them

21 wgx 2024-12-17 11:00:13 UTC 9 wheresyoured.at Llama Share

The tech industry has become a "Rot Economy" where growth is prioritized over user experience, leading to a toxic digital environment that is hostile, manipulative, and exploitative. This has resulted in a society where people are constantly bombarded with ads, notifications, and algorithm-driven content that is designed to keep them engaged, but often at the expense of their well-being and sanity.

New FCC chair wants to revoke broadcast licenses; First Amendment might stop him

19 rntn 2024-12-17 16:09:46 UTC 15 arstechnica.com Llama Share

Brendan Carr, Trump's pick for FCC chair, wants to crack down on news broadcasters perceived as unfair to Trump or Republicans. He may use FCC authority to pressure broadcasters, but revoking licenses is difficult and likely unconstitutional.

Delta emulator triples Apple's prices to encourage external clicks

18 cglong 2024-12-17 20:24:18 UTC 0 theverge.com Llama Share

Delta gaming emulator now links to Patreon in iOS app, tripling prices for in-app purchases to protest Apple's External Purchase Link Entitlement. Developer Riley Testut encourages users to sign up on Patreon for benefits like iPad and SEGA Genesis support.

Denmark will not extradite anti-whaling activist Paul Watson to Japan

18 aziaziazi 2024-12-17 11:29:41 UTC 5 reuters.com Full Share

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trofaf – super simple live static blog generator in Go

17 indigodaddy 2024-12-17 22:43:10 UTC 3 github.com/mna Llama Share

trofaf generates a static website from markdown files and templates, favoring simplicity. It watches for changes and re-generates the website automatically.

Ask HN: Why do laptop chargers have data wires?

17 PrimaryAlibi 2024-12-17 00:05:39 UTC 53 news.ycombinator.com Llama Share

Laptop chargers have data wires due to USB design, allowing data transfer when not needed. Manufacturers could remove data wires, but it's a design choice, not a security priority.

Waymo – Avoiding a Falling Skateboarder

15 smy20011 2024-12-17 15:46:39 UTC 12 twitter.com/dmitri_dolgov Full Share

Don’t miss what’s happening People on X are the first to know.

Nvidia Jetson Orin Nano Super: The most affordable generative AI supercomputer

15 centum 2024-12-17 15:46:26 UTC 4 nvidia.com Llama Share

The NVIDIA Jetson Orin Nano Super delivers up to 67 TOPS of AI performance at $249, making it the most affordable and accessible platform for generative AI. It offers a 1.7X performance boost over its predecessor through a software update or purchase of the new developer kit.

Making Apple Watch functional with Android

14 thunderbong 2024-12-17 03:07:11 UTC 2 github.com/abishekmuthian Full Share

Note: Unfortunately due to Apple's walled garden approach it's impossible to setup Apple Watch without an iPhone, but by using the code and techniques detailed in this project Apple Watch is usable with an Android phone without having to carry the iPhone along.

The Year in Math

13 isaacfrond 2024-12-17 12:10:55 UTC 0 quantamagazine.org Llama Share

Mathematicians made significant breakthroughs in 2024, including a proof of the geometric Langlands conjecture and advancements in geometry and number theory. These discoveries were made possible by decades of effort and the use of artificial intelligence, which is increasingly becoming a valuable tool in mathematical research.

Ted: Tool for editing files according to the rules of a provided Turing Machine

13 thunderbong 2024-12-17 09:44:44 UTC 1 github.com/ahalbert Llama Share

User wants to modify a program to only execute certain actions based on specific conditions and use a state machine to process files. The state machine language, ted, has various commands for capturing, executing actions, and moving between states.

Ever wished you could time-travel just to say 'I told u so'?

12 frankbdev 2024-12-17 12:58:22 UTC 15 tolduvault.com Full Share

Told U Vault lets you save your quotes, predictions, and insights securely. Revisit them later to celebrate your 'I told u so!' moments. Start vaulting your brilliance today!

First sighting of 'neutrino fog' sparks excitement, bad news for dark matter?

11 geuis 2024-12-17 20:57:40 UTC 3 nature.com Llama Share

Physicists in Italy and China observed neutrino signals that mimic dark matter, a double-edged sword for dark matter research. The findings suggest detectors are sensitive enough to pick up dark matter signals but may also obscure them with neutrino signals.

The Animatronic Menagerie

11 bcl 2024-12-17 16:41:19 UTC 0 theanimatronicmenagerie.wordpress.com Llama Share

The author started a project for personal use but now wants to document it to help others. They aim to bring inanimate objects to life through animatronics, starting with a raven.