Forwarded from Hacker News
Darkest and clearest skies at risk from industrial megaproject (Score: 150+ in 15 hours)
Link: https://readhacker.news/s/6kYbB
Comments: https://readhacker.news/c/6kYbB
Link: https://readhacker.news/s/6kYbB
Comments: https://readhacker.news/c/6kYbB
ESO
World's darkest and clearest skies at risk from industrial megaproject
On December 24th, AES Andes, a subsidiary of the US power company AES Corporation, submitted a project for a massive industrial complex for environmental impact assessment. This complex threatens the pristine skies above ESO’s Paranal Observatory in Chile’s…
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Forwarded from Hacker News
Flattening ASTs and other compiler data structures (2023) (❄️ Score: 150+ in 2 days)
Link: https://readhacker.news/s/6kV2X
Comments: https://readhacker.news/c/6kV2X
Link: https://readhacker.news/s/6kV2X
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www.cs.cornell.edu
Flattening ASTs (and Other Compiler Data Structures)
This is an introduction to data structure flattening, a special case of arena allocation that is a good fit for programming language implementations. We build a simple interpreter twice, the normal way and the flat way, and show that some fairly mechanical…
&'a ::rynco::UntitledChannel
https://x.com/SpaceX/status/1878281148893102238?s=19 Starship 鸽到 15 号周三了
盲猜一个 recycle 两天,又会和 Flight 7 在同一天了
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人类学家希望,将人类留在火星上的垃圾,作为文化遗产保护起来
Anthropologists call for tracking and preservation of human artifacts on Mars
图注:火星地图,展示了 14 次火星探测任务、主要地点和有助于考古记录发展的文物实例。(B) 海盗 1 号探测器;(C) “毅力号”火星车的车辙;(D) 保温毯中使用的聚酯纤维网,使用“毅力号”火星车的车载相机拍摄
Anthropologists call for tracking and preservation of human artifacts on Mars
人类的航天器、着陆器、探测车及其他太空探索残骸,究竟是散落在火星表面的垃圾,还是现代版的打制石器 — 象征智人开疆辟土的珍贵文物?
堪萨斯大学人类学家贾斯汀·霍尔科姆的最新研究主张,人类火星探索的实物遗存应进行编目、保存与维护,以此记载人类首次星际探索的尝试历程。
2024 年 12 月 16 日,论文《火星上正在出现的考古记录》发表于同行评审期刊《自然天文学》。
作者表示,自己的核心论点是「智人正经历一次扩散过程,这一过程最初始于非洲,随后扩展至其他大陆,如今已延伸至地球之外的环境」。
「我们已开始在太阳系中繁衍。正如我们利用文物和特征来追踪人类在地球上的迁徙、进化和历史一样,我们也能通过追踪探测器、卫星、着陆器以及遗留在太空中的各种材料,在太空中进行同样的研究。这一扩散过程留下了物质痕迹。」
霍尔科姆提出,考古学家会通过研究古代垃圾场来揭示地球上过去社会的秘密。正如考古学家那样,许多被视作太空垃圾的物质实际上蕴藏着巨大的考古与环境价值。
图注:火星地图,展示了 14 次火星探测任务、主要地点和有助于考古记录发展的文物实例。
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Forwarded from Caixin (财新网)
Telegraph
韩国一核电站泄漏29吨核废液 韩政府称放射性水平正常 - 财新网
【财新网】韩国一核电站发生核废液泄漏事故。韩国原子能安全委员会1月12日称,当地时间1月12日10时23分,收到韩国水力原子能公司(KHNP)报告,其月城2号机组正常运转时,储藏罐内的核废液未经样本分析阶段就被排放入海。据估计,排放量约为29吨。 当天上午,韩国水力原子能公司在向海洋排放废液的准备过程中(样品分析的搅拌工作),发现储罐出口阀门处于打开状态,立即关闭阀门以堵住泄漏。随后,对储罐内剩余样品分析发现,排放的浓度和放射性处于正常排放水平。 具体而言,废液中氚的浓度为3.79x10^8贝克勒耳每立…
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Forwarded from Hacker News
Right to root access (Score: 150+ in 12 hours)
Link: https://readhacker.news/s/6m32d
Comments: https://readhacker.news/c/6m32d
Link: https://readhacker.news/s/6m32d
Comments: https://readhacker.news/c/6m32d
Medhir
right to root access
right to repair laws should include provisions requiring manufacturers to unlock a device's bootloader (to provide root access) upon consumer request.
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Forwarded from Twitter Picture Bot
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&'a ::rynco::UntitledChannel
Scrubbed
Eric Berger 的消息,主要问题是因为有冰堵住了一根排加压气用的管道,多次尝试融化但是失败了
https://arstechnica.com/space/2025/01/an-icy-vent-line-may-have-caused-blue-origin-to-scrub-debut-launch-of-new-glenn/
https://arstechnica.com/space/2025/01/an-icy-vent-line-may-have-caused-blue-origin-to-scrub-debut-launch-of-new-glenn/
Ars Technica
An icy vent line may have caused Blue Origin to scrub debut launch of New Glenn
Such issues are totally expected and normal with large, new rockets.