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Stone blocks from the Lighthouse of Alexandria recovered from seafloor

news.ycombinator.com Dario Radley 2025-07-19 13:51:06

After centuries underwater, 22 huge stone blocks of the ancient Lighthouse of Alexandria, one of the Seven Wonders of the Ancient World, have been recovered from the Mediterranean seabed, a breakthrough in an ambitious digital reconstruction effort. Restoration is part of the ongoing “PHAROS” project, led by archaeologist and architect Isabelle Hairy of France’s National Center for Scientific Research (CNRS), along with Egypt’s Centre d’Études Alexandrines (CEAlex) under the authority of Egypt’

Topics: alexandria blocks century documentary lighthouse
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Show HN: Linux CLI tool to provide mutex locks for long running bash ops

news.ycombinator.com Unknown 2025-07-25 02:58:40

WaitLock WaitLock is a portable UNIX/POSIX command-line tool that provides mutex and semaphore functionality for shell scripts. It enables synchronized access to resources across multiple processes with automatic cleanup when processes die. Features Mutex Mode : Single lock holder (default) : Single lock holder (default) Semaphore Mode : Multiple concurrent lock holders : Multiple concurrent lock holders Automatic Cleanup : Locks released when process dies : Locks released when process die

Topics: list lock locks syslog waitlock
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This 2-Pack of 40W Wall Chargers (USB-C/A) Is Now Just $7 Each, Amazon Launches Early Prime Day Deals

gizmodo.com Gizmodo Deals 2025-09-03 11:25:19

Not all charging blocks are created equal and finding the sweet spot between power, safety, outputs, and price can be tricky. Amazon is hosting some of its most aggressive deals ever leading up to Prime Day so now’s a great time to upgrade your charging kit – and they’re not just for Prime members. One of the best bargains available currently is for a 2-pack of 40W wall charger blocks by MateStar which is now selling at an all-time low price. The normal price on this pack of 2 40W charger block

Topics: blocks charger charging ports usb
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A different take on S-expressions

news.ycombinator.com Unknown 2025-09-06 14:25:57

[about document] Peculiar kind of S-expressions specification document [intended audience] beginners in programming table of contents 1. introduction S-expressions (Symbolic Expressions) are a fundamental concept in computer science and programming language theory. S-expressions are a simple, yet powerful notation for representing nested list data structures and code in a parenthesized form. They are commonly associated with the Lisp family of programming languages, where they serve both as

Topics: blocks expression line strings transposed
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Minecraft: Chase the Skies improves graphics, adds Happy Ghast mob

techspot.com Unknown 2025-09-11 07:23:00

Minecraft is a game about breaking and placing blocks. At first, players built simple structures to protect themselves from nocturnal monsters. But as the game grew, players began working together to create wonderful, imaginative things. It can also be about adventuring with friends or watching the sunrise over a blocky ocean. It's pretty. Brave players battle terrible creatures in The Nether, which is more scary than pretty. Or, if you'd prefer something calmer, you can visit a land of giant m

Topics: block blocks ghast new players
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Unprecedented optical clock network lays groundwork for redefining the second

news.ycombinator.com Unknown 2025-09-12 06:03:13

This article has been reviewed according to Science X's editorial process and policies . Editors have highlighted the following attributes while ensuring the content's credibility: Strontium optical lattice clock at NPL. Credit: Andrew Brookes In a new study, researchers carried out the most extensive coordinated comparison of optical clocks to date by operating clocks and the links connecting them simultaneously across six countries. Spanning thousands of kilometers, the experiment represents

Topics: clock clocks optical precision time
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Simulink (Matlab) Copilot

news.ycombinator.com Unknown 2025-09-15 22:58:49

Before I start - Yes, I know the differential equation in the video is wrong. I’ve already fixed it by tweaking the prompt and the script so the inputs depend on what’s being asked. The original issue was that blocks like Sum were being pasted in without matching the right number of inputs and outputs. I’m a 2nd-year aero-engineering student at Imperial College London, I enjoy problem solving (did BPhO - gold and UKMT Gold) I'm a full-stack dev (or atleast trying to be lol) who hacked together

Topics: api blocks just like simulink
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