What is Hackers' Pub?

Hackers' Pub is a place for software engineers to share their knowledge and experience with each other. It's also an ActivityPub-enabled social network, so you can follow your favorite hackers in the fediverse and get their latest posts in your feed.

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디지털 렌즈 수차 보정이 (당연하지만) 완벽하지 않고, 오히려 표현 수단으로 쓰이던 수차들까지 근사값으로 "밀어버리는" 단점이 있는 것도 사실인데 시대에 뒤떨어진 사람으로 모는 모습은 긍정적으로 보기 어렵다.

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제미나이를 업무에 활용하는(주로 자료검색 및 정리) 친구랑 채팅 중 "제미나이 이상하다. 어떤 주제든 어떤 대화든 길어지면 무조건적으로 내가 맞다고 하고 칭찬하는 빈도가 늘어난다. 내가 입으로 똥을 싸는 소리를 해도 내가 맞다고 하고 **내 안목에 감탄했다**라고 한다. 이거 도대체 왜 그런걸까?" 친구와 나는 이 부분에 대해서 고민을 해봤고, 결국은 패턴과 확률의 문제라고 잠재적으로 결론을 내렸다.

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以前、セコマの店員(店長?)さんにチュロス売ってないんですか?と聞いて以来、行くと必ず売ってるようになったので毎回チュロス買うマンになってる
言ってみるもんだね
:blobcat_nomming:​​:sakusaku:​​:umai:

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There were a few other things (conflicting standards such as ACP vs WAC), but the JSON-LD was repeatedly the thing that developers found hard to wrap their head around. "How do I create a schema?" is a pretty normal question for an application developer, when you're used to working with traditional web app stacks. "Oh, it's JSON" and then they learn, nope, it's not: every property is optional, every property is one value or an array of values. The JSON-LD learning curve is so high that even people I think know it, generally go "yeah, nah, I still don't fully get it"

So to develop an application with JSON-LD you basically need to deal with garbage in hopefully data out. It's not familiar nor simple to 99% of web developers. It's an incredibly niche community of people who actually get it, and they tend to work at companies who really benefit from the properties of JSON-LD.

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='지방 대신 근육을 키우자는 것은 우리 몸의 운영체제를 뒤흔드는 중대 내용이다. 섣부른 운동으로 온 몸이 피해를 볼 수 있다. 운동선수처럼 울끈불끈해질 생각도 없으면서 어째서 서두르는가? 헬스장에 갈 결심은 일단 누워서 충분히 숙의하기를 바란다.'

RE: https://bsky.app/profile/did:plc:g23eq6mc3wh6nk5kmxbobm6i/post/3mfiisbaicy2c

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1/n I’m on a long train trip again! I’m almost out of data, and have a ton of work to do, but will try to share interesting updates if they arise.

Before the internet starts mansplaining trains again:
- yes, I’m aware of the existence of quiet cars,
- yes, I book my seats in advance, and in those quiet cars if available,
- yes, I know that I can book 1st class tickets and do so depending on availability and other factors.

In fact, I’ve been on my train for only 30 minutes and am already regretting paying an extra 20 € for first class. One of the passengers here is exceptionally disgusting, he’s sitting opposite of me, and it’s busy enough that I cannot really move.

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지상파 3사, 오픈AI 상대 소송…"챗GPT, 뉴스 무단 이용"
(서울=연합뉴스) 고가혜 기자 = KBS·MBC·SBS 등 지상파 3사가 챗GPT 개발사인 오픈AI를 상대로 소송전에 나섰다.
yna.co.kr/view/AKR202602231167

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지상파 3사, 오픈AI 상대 소송…"챗GPT, 뉴스 무단 이용"
(서울=연합뉴스) 고가혜 기자 = KBS·MBC·SBS 등 지상파 3사가 챗GPT 개발사인 오픈AI를 상대로 소송전에 나섰다.
yna.co.kr/view/AKR202602231167

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14 歲學生麥爾斯・吳(Miles Wu)摺出可承受相當於自身重量 1 萬倍負載的三浦摺(Miura-ori)摺紙結構 https://www.smithsonianmag.com/innovation/this-14-year-old-is-using-origami-to-design-emergency-shelters-that-are-sturdy-cost-efficient-and-easy-to-deploy-180988179/

住在紐約的 14 歲學生 Miles Wu,在家中客廳用一張紙摺出 Miura-ori(三浦摺,一種由平行四邊形重複拼接、可一次展開與收折的摺紙結構)時,發現它竟能承受自身重量 10,000 倍的壓力。他花了超過 250 小時反覆設計、摺疊與測試多種變形,並把目標放在天然災害(颶風、野火等)時能快速展開、夠堅固且成本可控的緊急避難所。他原本就熱愛摺紙,近年開始閱讀幾何摺紙在 STEM(科學、技術、工程、數學)領域的研究與應用,才把興趣轉成工程題目。

文章也回顧摺紙從 1960 年代起被工程、醫學與建築等領域重視,應用包含支架(stent)、導管(catheter)等醫材,以及自我組裝機器人。Miura-ori 由日本天文物理學家三浦公亮提出,因能把大片材料摺成扁平緊密形狀,曾被用在太空載具的可摺疊太陽能板與衛星任務。Wu 以電腦繪製不同參數(平行四邊形單元的長寬與角度)變體,搭配三種紙材共做出 54 種設計、108 次試驗,並用壓線機降低人工摺痕誤差;每個樣本放在固定間距的支撐間,逐步加重到結構破壞,用以量測強度/重量比(strength-to-weight ratio,能承受重量相對於自身重量的比例)。他原先以為頂多撐住約 50 磅,最後卻測到約 200 磅等級的承載力,最高可達自身重量 10,000 倍,並用「一台紐約計程車扛起 4,000 頭大象」來比喻這個量級。

這項研究讓他在 2025 Thermo Fisher Scientific Junior Innovators Challenge 拿下首獎 25,000 美元;主辦單位 Society for Science(美國科學推廣組織)與評審認為,他把長期興趣轉成嚴謹的結構工程測試,且在團隊關卡中能用摺紙原理做出可動機構零件,展現創意與協作能力。普林斯頓大學工程師 Glaucio H. Paulino 肯定這是有系統的參數化探索,能用幾何調整(單元尺寸、摺角)實質提升強度/重量比;但若要放大成可用的避難所,材料厚度、接頭設計、製造瑕疵與屈曲(buckling)、以及面對多方向載重與耐久需求,都會讓問題更複雜,強度也不會「按比例」線性放大。Wu 接下來想做出實體避難所雛形,例如把單張 Miura-ori 彎成拱形,或用多張拼成長方形/帳棚式結構,並加做側向與多方向受力測試。

Hacker News 討論則補充了競賽脈絡與實務疑問:有人詢問其他參賽作品在哪裡看,留言提供主辦方公布的 top 300 與 top 30 作品頁面;也有人拿綜藝節目 Lego Masters 的承重橋段類比「看似脆弱的材料在幾何分力下能變很強」。關於能否用在潛水器抗深海壓力,有人提醒文章測的是平面結構在垂直方向的承重,若變成曲面或面對水平壓力,受力路徑會大幅改變,可能更接近羅馬拱的思路而非原本摺法就能直接套用。也有兩派觀點同時出現:一派認為別只看「14 歲」,他其實累積了 6 年的興趣與練習;另一派則提醒別把「摺出新發明」講得太滿,這次更像是對既有 Miura-ori 變體做系統化量測與比較。整體氣氛多為讚嘆摺紙在美學與工程之間的模糊界線,並好奇計算摺紙(computational origami)在建築尺度是否已有真正落地案例。

https://news.ycombinator.com/item?id=47038546
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No, as someone who has given up millions of dollars, hundreds of thousands of followers on that site, and lost two jobs now to do the right thing, I think I grasped it entirely. That ain’t leadership.

RE: https://bsky.app/profile/did:plc:guwuxmggenz5ecxqhwesuxi2/post/3mfj2bzypws2g

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