Forwarded from Solidot
ESA 欧几里得望远镜释出了首批图像
2023-11-08 16:18 by 探寻者
欧洲航天局（ESA）的欧几里得望远镜释出了首批图像。望远镜于今年 7 月 1 日发射，以古希腊数学家欧几里得的名字命名，它的轨道位置是日地之间的拉格朗日 L2 点，距离地球 160 万公里。到达预定轨道之后，还需要花 2 个月时间测试和校准仪器。工程师在调试期间望远镜遇到了一系列问题，如无法锁定恒星拍摄稳定图像，以及光污染等。随着首批图像的发布，这些问题都已经解决。欧几里得望远镜的目标是测绘宇宙中暗物质的大尺度分布结构，并确认暗能量的性质。望远镜的口径为 1.2 米，它主要通过近红外光波长观测宇宙。
https://www.bbc.com/news/science-environment-67343374
https://www.esa.int/Science_Exploration/Space_Science/Euclid_overview
#太空
2023-11-08 16:18 by 探寻者
欧洲航天局（ESA）的欧几里得望远镜释出了首批图像。望远镜于今年 7 月 1 日发射，以古希腊数学家欧几里得的名字命名，它的轨道位置是日地之间的拉格朗日 L2 点，距离地球 160 万公里。到达预定轨道之后，还需要花 2 个月时间测试和校准仪器。工程师在调试期间望远镜遇到了一系列问题，如无法锁定恒星拍摄稳定图像，以及光污染等。随着首批图像的发布，这些问题都已经解决。欧几里得望远镜的目标是测绘宇宙中暗物质的大尺度分布结构，并确认暗能量的性质。望远镜的口径为 1.2 米，它主要通过近红外光波长观测宇宙。
https://www.bbc.com/news/science-environment-67343374
https://www.esa.int/Science_Exploration/Space_Science/Euclid_overview
#太空
Forwarded from 你有一个打折需要了解 (花灌)
资讯 | 下一作《侠盗猎车手》
我们非常高兴地告诉大家，12 月初，我们将发布下一作《侠盗猎车手》（next Grand Theft Auto）的首部预告片。 我们期待与大家分享更多的游戏体验。
谢谢大家
萨姆·豪瑟
链接：@X(Twitter):Rockstar Games
#Rockstar #资讯 #NZ2438
我们非常高兴地告诉大家，12 月初，我们将发布下一作《侠盗猎车手》（next Grand Theft Auto）的首部预告片。 我们期待与大家分享更多的游戏体验。
谢谢大家
萨姆·豪瑟
链接：@X(Twitter):Rockstar Games
#Rockstar #资讯 #NZ2438
X (formerly Twitter)
Rockstar Games (@RockstarGames) on X
We are very excited to let you know that in early December, we will release the first trailer for the next Grand Theft Auto. We look forward to many more years of sharing these experiences with all of you.
Thank you,
Sam Houser
Thank you,
Sam Houser
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Forwarded from Hacker News (yahnc_bot)
All About Cats, and What Ethernet Classifications Mean https://hackaday.com/2023/11/07/all-about-cats-and-what-ethernet-classifications-mean-beyond-bigger-number-better/
Hackaday
All About Cats, And What Ethernet Classifications Mean Beyond ‘Bigger Number Better’
Although it probably feels like forever to many of us since Category 5 Ethernet cabling became prevalent, now that 2.5 and even 5 Gbit Ethernet has trickled into the mainstream, a pertinent questio…
Forwarded from Hacker News (yahnc_bot)
Why does unsafe multithreaded std:unordered_map crash more than std:map? https://devblogs.microsoft.com/oldnewthing/20231103-00/?p=108966
Microsoft News
Why does unsafe multithreaded use of an std::unordered_map crash more often than unsafe multithreaded use of a std::map?
It's all in the implementation details.
Forwarded from Hacker News
Monaspace (🔥 Score: 154+ in 3 hours)
Link: https://readhacker.news/s/5TAvG
Comments: https://readhacker.news/c/5TAvG
Link: https://readhacker.news/s/5TAvG
Comments: https://readhacker.news/c/5TAvG
Githubnext
An innovative superfamily of fonts for code
Waveform Analysis Language
A programming language for complex waveform analysis and EDA tool development
https://wal-lang.org/
A programming language for complex waveform analysis and EDA tool development
https://wal-lang.org/
Forwarded from Hacker News (yahnc_bot)
Google to Implement IETF's Message Layer Security (MLS) Specification RFC 9420 https://security.googleblog.com/2023/07/an-important-step-towards-secure-and.html
Google Online Security Blog
An important step towards secure and interoperable messaging
Posted by Giles Hogben, Privacy Engineering Director Most modern consumer messaging platforms (including Google Messages) support end-to-...
Forwarded from Hacker News (yahnc_bot)
Is this radical redesign of GIMP possible now? https://librearts.org/2023/11/radical-redesign-of-gimp/
Libre Arts
Is this radical redesign of GIMP possible now?
Glimpse NX didn't have a great solution for missing menu, but this new 3D CAD application has
Forwarded from Hacker News (yahnc_bot)
Introduction to Univalent Foundations of Mathematics with Agda https://www.cs.bham.ac.uk/~mhe/HoTT-UF-in-Agda-Lecture-Notes/HoTT-UF-Agda.html
Forwarded from Lancern's Treasure Chest
C++ 标准委员会于11月11日召开了C++26的第二次会议。本次会议新接收了4个核心语言提案、19个标准库提案进入C++26标准。
新接收的重要核心语言提案包括：
- P2662R3 Pack indexing：允许开发者使用数组索引语法提取template parameter pack中的单个元素。
新接收的重要标准库提案包括：
- P1673R13 A free function linear algebra interface based on the BLAS：一个线性代数库，类似于BLAS
- P2905R2 Runtime Format Strings：运行时指定的格式化串
- P2546R5 Debugging Support：一组检测调试器并主动调用调试功能的函数
此外本次会议还进一步讨论了包括Contracts和Reflection在内的其他内容。
https://herbsutter.com/2023/11/11/trip-report-autumn-iso-c-standards-meeting-kona-hi-usa/
新接收的重要核心语言提案包括：
- P2662R3 Pack indexing：允许开发者使用数组索引语法提取template parameter pack中的单个元素。
新接收的重要标准库提案包括：
- P1673R13 A free function linear algebra interface based on the BLAS：一个线性代数库，类似于BLAS
- P2905R2 Runtime Format Strings：运行时指定的格式化串
- P2546R5 Debugging Support：一组检测调试器并主动调用调试功能的函数
此外本次会议还进一步讨论了包括Contracts和Reflection在内的其他内容。
https://herbsutter.com/2023/11/11/trip-report-autumn-iso-c-standards-meeting-kona-hi-usa/
Sutter’s Mill
Trip report: Autumn ISO C++ standards meeting (Kona, HI, USA)
Today, the ISO C++ committee completed its second meeting of C++26, held in Kona, HI, USA. Our hosts, Standard C++ Foundation and WorldQuant, arranged for high-quality facilities for our six-day me…
🤯4