1. TrackWeight: Turn your MacBook's trackpad into a digital weighing scale (github.com)
Use your Mac trackpad as a weighing scale. Contribute to KrishKrosh/TrackWeight development by creating an account on GitHub.
2025-07-21
34 篇热帖
2. UK backing down on Apple encryption backdoor after pressure from US (arstechnica.com)
UK officials fear their insistence on backdoor endangers tech deals with US.
3. Global hack on Microsoft Sharepoint hits U.S., state agencies, researchers say (www.washingtonpost.com)
Unknown attackers exploited a “significant vulnerability” in Microsoft’s SharePoint collaboration software, hitting targets around the world.
4. Writing is thinking (www.nature.com)
On the value of human-generated scientific writing in the age of large-language models.
5. Tough news for our UK users (blog.janitorai.com)
6. I wasted weeks hand optimizing assembly because I benchmarked on random data (www.vidarholen.net)
7. We made Postgres writes faster, but it broke replication (www.paradedb.com)
Exploring LSM tree implementation in PostgreSQL for better write performance.
8. New records on Wendelstein 7-X (www.iter.org)
文德尔施泰因7-X（Wendelstein 7-X）创聚变新纪录
2025年6月10日，全球最大的仿星器聚变装置文德尔施泰因7-X在最新实验（OP 2.3活动，5月22日结束）中取得多项性能突破，其中最引人注目的是长时间脉冲条件下聚变三重积的世界新纪录。
核心突破：三重积纪录
聚变三重积（又称劳森判据）是衡量聚变装置能否实现净能量产出的关键指标，由等离子体离子温度（T）、密度（n）和能量约束时间（τ）三个因素乘积决定。此次实验中，文德尔施泰因7-X在43秒的长脉冲期间达到了新的三重积峰值，突破了以往仅能在数秒内实现高值（如JT-60U、JET装置）的限制，将仿星器的三重积水平提升至与托卡马克相当的层次。
实现技术与协作
这一成就依托国际合作：
- 美国橡树岭国家实验室开发的颗粒注入系统为等离子体稳定供给燃料，保障长脉冲运行。
- 欧洲与美国多个实验室提供诊断设备，精准测量三重积计算所需参数。
- 欧洲聚变联盟（EUROfusion）及全球团队协作攻关。
其他里程碑
同期实验还验证了：
- 能量转换能力：持续高能量输入与热量导出。
- 等离子体压力与磁场压力的比值优化。
科学意义
项目负责人托马斯·克林格（Thomas Klinger）指出，此成就标志着“向具备发电能力的仿星器迈出关键一步”；罗伯特·沃尔夫（Robert Wolf）强调，这些记录验证了仿星器概念的可行性，体现了国际协作的核心作用。
（注：摘要基于提供的文本内容，未包含图片链接等非核心信息。）
9. I've launched 37 products in 5 years and not doing that again (www.indiehackers.com)
独立开发者的产品策略反思：专注深耕 vs. 高频发布
核心经验
- 病毒式传播不可预测：5年推出37个产品，仅1个偶然爆发，绝大多数难以获得关注。
- 失败的定义需修正：多数产品并非失败，而是增长速度远低于预期。
- 慢增长的长期价值：当前项目 Refgrow 耗时6个月才获得首个付费用户，但现以近乎零营销预算实现持续稳定增长。
- 专注优于多线作战：持续改进单一项目比追逐“爆款”更能产生可持续成果。
向独立开发者提出的关键问题
- 成功路径选择：你通过专注一个项目并给予时间取得成功，还是通过高频发布新产品？
- 慢增长的有效性：“慢增长”策略是否曾为你带来回报？
- 重新开始的策略：若从头再来，你会选择耐心深耕还是高频率发布？
期待听到其他独立开发者的故事、经验或建议。
10. Staying cool without refrigerants: Next-generation Peltier cooling (news.samsung.com)
On June 28, Samsung Electronics, together with the Johns Hopkins University Applied Physic
11. FFmpeg devs boast of another 100x leap thanks to handwritten assembly code (www.tomshardware.com)
But admit this boost is only seen in 'an obscure filter'.
12. Australian anti-porn group claims responsibility for Steams new censorship rules (www.pcgamer.com)
Everyone hated that.
13. Show HN: X11 desktop widget that shows location of your network peers on a map (github.com)
connmap is an X11 desktop widget that shows location of your current network peers on a world map in real-time - h2337/connmap
14. Peep Show is the most realistic portrayal of evil I have seen (2020) (mattlakeman.org)
Peep Show, a British tv series running from 2003 to 2015, starring David Mitchell and Robert Webb as a pair of miserable, co-dependent roommates living in Croydon, London, is the most realistic portrayal of evil I have ever seen. Admittedly, I’m using “evil” in an unorthodox way. Most people think of “evil” as being synonymous with “malicious”…
15. Log by time, not by count (johnscolaro.xyz)
By default, log based on fixed time intervals rather than number of messages.
16. Shale Drillers Turn on Each Other as Toxic Water Leaks Hit Biggest US Oil Field (www.bloomberg.com)
17. Occasionally USPS sends me pictures of other people's mail (the418.substack.com)
18. Payment processors' bar on Japanese adult content endangers democracy (2024) (automaton-media.com)
NieR creator Yoko Taro comments on the series of instances of Japanese adult platforms being pressured by credit card payment processors.
19. What happens when housing prices go down? (clmarohn.substack.com)
A reflection on affordability, finance, and the deep contradictions we struggle to face.
20. Man wearing metallic necklace dies after being sucked into MRI machine (www.bbc.com)
The man entered a room as his wife was having a scan on her knee, according to local media.
21. Geocities Backgrounds (pixelmoondust.neocities.org)
Luna's ode the old web ♡
22. ESP32-Faikin: ESP32 based module to control Daikin aircon units (github.com)
ESP32 based module to control Daikin aircon units. Contribute to revk/xESP32-Faikout development by creating an account on GitHub.
23. Agents built from alloys (xbow.com)
This spring, we had a simple and, to my knowledge, novel idea that turned out to dramatically boost the performance of our vulnerability detection agents at XBOW. On fixed benchmarks and with a constrained number of iterations, we saw success rates rise from 25% to 40%, and then soon after to 55%.
24. EU commissioner shocked by dangers of some goods sold by Shein and Temu (www.theguardian.com)
Michael McGrath awaits results of secret shopper investigation amid crackdown on Chinese retail platforms
25. Covers as a way of learning music and code (ntietz.com)
26. Mwm – The smallest usable X11 window manager (github.com)
The smallest, actually usable window manager. Contribute to lslvr/1wm development by creating an account on GitHub.
27. SecretSpec: Declarative Secrets Management (devenv.sh)
Fast, Declarative, Reproducible, and Composable Developer Environments using Nix
28. Subreply – An open source text-only social network (github.com)
Tiny, but mighty social network. Contribute to lucianmarin/subreply development by creating an account on GitHub.
29. How to handle people dismissing io_uring as insecure? (2024) (github.com)
How to handle people dismissing io_uring as insecure?
30. Positron – A next-generation data science IDE (positron.posit.co)
Positron unifies exploration and production work in one free, AI-assisted environment, empowering the full spectrum of data science in Python and R.
31. Distillation makes AI models smaller and cheaper (www.quantamagazine.org)
Fundamental technique lets researchers use a big, expensive “teacher” model to train a “student” model for less.
32. Stdio(3) change: FILE is now opaque (OpenBSD) (undeadly.org)
33. Insights on Teufel’s first open-source speaker (blog.teufelaudio.com)
An interview with some of the creative minds behind Teufel's new open-source MYND speaker. Find the whole story straight from the source.
34. 3-JSON (rgbcu.be)
tree, not three