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Delaunay Mesh Generation (2012)

news.ycombinator.com Unknown 2025-07-17 06:01:26

Delaunay Mesh Generation Our book is a thorough guide to Delaunay refinement algorithms that are mathematically guaranteed to generate meshes with high quality, including triangular meshes in the plane, tetrahedral volume meshes, and triangular surface meshes embedded in three dimensions. It is also the most complete guide available to Delaunay triangulations and algorithms for constructing them. We have designed the book for two audiences: researchers, especially graduate students, and engin

Topics: algorithms constrained delaunay refinement triangulations
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Ex-Waymo engineers launch Bedrock Robotics to automate construction

news.ycombinator.com Kirsten Korosec 2025-07-22 12:48:48

Bedrock Robotics, an autonomous vehicle technology startup founded by veterans of Waymo and Segment, has been operating quietly for more than a year. Now, it’s breaking cover with an $80 million funding round from investors Eclipse and 8VC. Bedrock Robotics is focused on developing a self-driving kit that can be retrofitted to construction and other worksite vehicles, according to the company. The announcement confirms some of TechCrunch’s reporting in May. Bedrock is “upgrading existing fleets

Topics: bedrock construction driving road robotics
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Ex-Waymo engineers launch Bedrock Robotics with $80M to automate construction

techcrunch.com Kirsten Korosec 2025-07-23 17:39:07

Bedrock Robotics, an autonomous vehicle technology startup founded by veterans of Waymo and Segment, has been operating quietly for more than a year. Now, it’s breaking cover with an $80 million funding round from investors Eclipse and 8VC. Bedrock Robotics is focused on developing a self-driving kit that can be retrofitted to construction and other worksite vehicles, according to the company. The announcement confirms some of TechCrunch’s reporting in May. Bedrock is “upgrading existing fleets

Topics: bedrock construction driving road robotics
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Zig's New Async I/O

news.ycombinator.com Unknown 2025-07-28 19:03:41

Asynchronicity is not concurrency. In the Zig Roadmap 2026 stream Andrew announced a new way of doing I/O, let’s see what are the goals of this upcoming design and how that relates to the revival of async / await in Zig. The new I/O Interface The most notable change to Zig is the introduction of a new interface in charge of all I/O operations. Most importantly, the Io interface is now expected to be provided by the caller, just like we already do with Allocator . Old Zig: const std = @impor

Topics: async const data io try
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What's the difference between named functions and arrow functions in JavaScript?

news.ycombinator.com James Sinclair 2025-08-10 20:10:23

Arrow functions (also known as ‘rocket’ functions) are concise and convenient. However, they have subtle differences compared to function declarations and function expressions. So how do you know which one to use, and when? Function declarations and function statements We have (at least) three ways of creating functions in JavaScript. The first is the function declaration. This binds a function to a given name. It looks something like this:1 1 I’ve used String.toLowercase() here, partly for b

Topics: arrow const function functions use
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The Download: how AI could improve construction site safety, and our Roundtables conversation with Karen Hao

technologyreview.com Rhiannon Williams 2025-08-15 21:10:00

More than 1,000 construction workers die on the job each year in the US, making it the most dangerous industry for fatal slips, trips, and falls. A new AI tool called Safety AI could help to change that. It analyzes the progress made on a construction site each day, and flags conditions that violate Occupational Safety and Health Administration rules, with what its creator Philip Lorenzo claims is 95% accuracy. Lorenzo says Safety AI is the first one of multiple emerging AI construction sa

Topics: ai construction editor empire safety
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Transmitting data via ultrasound without any special equipment

news.ycombinator.com Unknown 2025-08-21 17:02:17

There are secret messages flying all around you all the time, being transmitted via, most of the time, electromagnetic waves going from antenna to antenna. ELOs “Secret Messages” is a song about posting conspiracy theories via WiFi. But what if you need to get a few bytes from device A to device B (one of the hard problems in computer science!) and you don’t feel like making sure they’re both connected to the same network? Well, fortunately, another channel is available to us - sound, or for a

Topics: audio bufferbits const data frequency
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Build a Sentence-Level Text-to-Speech Reader in JavaScript

news.ycombinator.com Unknown 2025-08-22 11:34:26

In this article, we’ll build a simple web tool to explore how Text-to-Speech (TTS) works in JavaScript. We’ll also dive into the logic of sentence-level highlighting. These two features are often combined to create accessible, dynamic reading experiences in the browser. We’ll go step-by-step: Learn how TTS works in the browser Explore how to highlight sentences dynamically Build a working mini tool with HTML, CSS, and JavaScript (Demo & Code) 📢 What is TTS in the browser? JavaScript provides

Topics: const disabled sentence span utter
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BYOK – Bring Your Own Keyboard

news.ycombinator.com Unknown 2025-08-27 06:41:03

About BYOK BYOK, the company, is rooted in the philosophy of escaping the relentless distractions of the modern world. We believe in the power of simplicity—creating spaces where creativity can flourish without the constant pull of notifications, interface clutter, or the digital noise that surrounds us... More about BYOK

Topics: believe byok clutter company constant
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Augmented Vertex Block Descent (AVBD)

news.ycombinator.com Unknown 2025-08-31 15:04:56

Augmented Vertex Block Descent (AVBD) Vertex Block Descent is a fast physics-based simulation method that is unconditionally stable, highly parallelizable, and capable of converging to the implicit Euler solution. We extend it using an augmented Lagrangian formulation to address some of its fundamental limitations. First, we introduce a mechanism to handle hard constraints with infinite stiffness without introducing numerical instabilities. Second, we substantially improve the convergence in th

Topics: avbd bodies complex constraints stiffness
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“Two years of work in two months”: States cope with Trump broadband overhaul

arstechnica.com Unknown 2025-09-15 17:43:46

The Trump administration has upended plans that state governments made to distribute $42 billion in federal broadband funding, forcing state officials to scrap much of the preparation work they did over the previous couple of years. Secretary of Commerce Howard Lutnick essentially put the Broadband Equity, Access, and Deployment (BEAD) program on hold earlier this year and last week announced details of a rules overhaul that requires states to change how they distribute money to Internet servic

Topics: administration butcher construction maine state
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What It Took to Build the Death Star

gizmodo.com James Whitbrook 2025-09-16 23:47:17

The ultimate manifestation of the Empire’s overwhelming belief in strength through fear, the Death Star is everything insidious and evil about the Imperial engine in Star Wars—as well as its inevitable downfall. But while the story of stopping the Death Star is well trod at this point, the story of just how it was built in the first place is much more complicated. It’s not just complex because the Death Star’s construction took place over the course of decades, but because of that time frame, t

Topics: construction death republic star station
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Running Pong in 240 browser tabs

news.ycombinator.com Unknown 2025-06-01 01:33:28

Running Pong in 240 Browser Tabs Finally a use for my unclosed tabs Feb 20, 2025 What do you do with your unclosed browser tabs? I find that they take up a lot of screen space. So this week I figured out how to run pong inside mine. Loading... putting that space to good use That’s 240 browser tabs in a tight 8x30 grid. And they’re running pong! The ball and paddles are able to cleanly move between the canvas in the foregrounded window and all of the tabs above. You can see the (awful) code h

Topics: canvas code const tab tabs
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Building semiconductor plants in the US takes twice as long, costs twice as much as in Taiwan

techspot.com Skye Jacobs 2025-06-01 13:41:00

The big picture: The U.S. and many Western markets are simply not as efficient as Taiwan in building semiconductor fabrication (fab) operations. According to reports, 18 new fab construction projects are planned for 2025 alone, making it crucial to address these challenges. The West must streamline fab construction processes to catch up with the well-established semiconductor ecosystems of Taiwan and other Asian manufacturing hubs. TSMC encountered significant challenges when it began construct

Topics: blaschitz construction fab semiconductor taiwan
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