Lancern's Treasure Chest

北航发布了 LK-99 的验证论文 https://arxiv.org/abs/2307.16802 铅铜磷酸盐Pb10-xCux(PO4)6O的半导体输运性质，由Pb2SO5和Cu3P烧结而成 最近关于改性铅磷灰石在常压常温下超导性的宣称立即引起整个社会的轰动关注，该超导材料由黄铅矿(Pb2SO5)和磷化亚铜(Cu3P)烧结而成。为了验证这一令人兴奋的宣称，我们成功合成了Pb2SO5、Cu3P，并最终制备了改性铅铜磷酸盐Pb10-xCux(PO4)6O。我们对这些化合物的电输运性质和磁性进行了系统…

省流：不是常温超导体。

北航发布了 LK-99 的验证论文

https://arxiv.org/abs/2307.16802

铅铜磷酸盐Pb10-xCux(PO4)6O的半导体输运性质，由Pb2SO5和Cu3P烧结而成

最近关于改性铅磷灰石在常压常温下超导性的宣称立即引起整个社会的轰动关注，该超导材料由黄铅矿(Pb2SO5)和磷化亚铜(Cu3P)烧结而成。为了验证这一令人兴奋的宣称，我们成功合成了Pb2SO5、Cu3P，并最终制备了改性铅铜磷酸盐Pb10-xCux(PO4)6O。我们对这些化合物的电输运性质和磁性进行了系统分析。结果表明，Pb2SO5是一种高阻绝缘体，其室温电阻率约为7.18x10^9，而Cu3P是一种顺磁金属，其室温电阻率约为5.22x10^-4。与宣称的超导性相反，由Pb2SO5和Cu3P烧结而成的Pb10-xCux(PO4)6O化合物表现出类似半导体的输运特性，其室温电阻率较大，约为1.94x10^4，尽管我们的化合物的X射线衍射谱与先前报道的结构数据非常一致。此外，在室温下，将Pb10-xCux(PO4)6O压制成的颗粒放置在商用Nd2Fe14B磁体上，我们没有感觉到任何斥力，也没有观察到磁悬浮现象。这些结果表明，有关改性铅磷灰石常温超导体的宣称可能需要更仔细地重新检查，特别是其电输运性质。

The shell and its crappy handling of whitespace https://blog.plover.com/Unix/whitespace.html

The Universe of Discourse

The Universe of Discourse : The shell and its crappy handling of whitespace

From the highly eclectic blog of Mark Dominus

lld 17 ELF changes

via MaskRay

MaskRay

lld 17 ELF changes

LLVM 17 will be released. As usual, I maintain lld/ELF and have added some notes to https://github.com/llvm/llvm-project/blob/release/17.x/lld/docs/ReleaseNotes.rst. Here I will elaborate on some chan

Workarounds for C11 _Generic() https://www.chiark.greenend.org.uk/~sgtatham/quasiblog/c11-generic/

X to Close – The origins of the use of [x] in UI design. (2014) https://medium.com/re-form/x-to-close-417936dfc0dc

Medium

X to Close

The origins of the use of [x] in UI design.

今日CR运转观察：

今日搭乘G15京沪大标杆前往上海。

Show HN: Gogit – Just enough Git (in Go) to push itself to GitHub https://benhoyt.com/writings/gogit/

Benhoyt

Scripting with Go: a 400-line Git client that can create a repo and push itself to GitHub

In which I rewrite my toy pygit client in Go to see how suitable Go is for simple scripts.

Functions are vectors https://thenumb.at/Functions-are-Vectors/

thenumb.at

Functions are Vectors

Bleeding Pipe: A RCE vulnerability exploited in the wild

Comments

via river@users.lobste.rs (river)

blog.mmpa.info

Bleeding Pipe: A RCE vulnerability exploited in the wild

A new vulnerability in LogisticsPipes and other mods allowing RCE on clients and servers.

Why the “Null” Lifetime Does Not Exist

Comments

via knl@users.lobste.rs (knl)

Sabrina Jewson

Why the “Null” Lifetime Does Not Exist

This post originated from an interesting conversation had on the Rust community Discord the other day, in which a user asks:

Lancern's Treasure Chest

今日CR运转观察： 欢迎来到上海站，今日乘坐D710次寝台特急动卧立及甬前往北京。

欢迎来到北京南站

The future of Clang-based tooling

Comments

via calvin@users.lobste.rs (calvin)

The Trail of Bits Blog

The future of Clang-based tooling

Clang is a marvelous compiler; it’s a compiler’s compiler! But it isn’t a toolsmith’s compiler. As a toolsmith, my ideal compiler would be an open book, allowing me to get to everywhere from anywhere. The data on which my ideal compiler would operate (files…

今日CR运转观察：

欢迎来到上海站，今日乘坐D710次寝台特急动卧立及甬前往北京。

Object as a Morphism (2015)

Comments

via calvin@users.lobste.rs (calvin)

Decoding base16 sequences quickly

via Daniel Lemire's blog

Breaking News: 根据二手内部消息，中科院物理所已经成功合成出样品，磁化率初步测得与文章一致，未观察到悬浮现象。

消息来源
https://www.zhihu.com/question/613850973/answer/3136316439

Zhihu

韩国研究人员声称发现常压室温超导材料，具体情况如何？可信度有多高？ - 知乎

最新：贴一个国内的实验结果回答（不保真），我认为从今天开始会陆续有结果出来。韩国研究人员声称发现常…

Some designs for modern peer-to-peer networking

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via countvajhula@users.lobste.rs (countvajhula)

lobste.rs

Some designs for modern peer-to-peer networking

5 comments