Forwarded from Hacker News (yahnc_bot)
Forwarded from Hacker News (yahnc_bot)
How secure is merely TRIMing all of a SSD's blocks? https://utcc.utoronto.ca/~cks/space/blog/tech/SSDBlockDiscardHowSecure
Forwarded from Lancern's Treasure Chest
A Tutorial Introduction to the ARM and POWER Relaxed Memory Models
https://www.cl.cam.ac.uk/~pes20/ppc-supplemental/test7.pdf
https://www.cl.cam.ac.uk/~pes20/ppc-supplemental/test7.pdf
Forwarded from Frontend Today (Ayaya)
Chrome Developers - Blog
SPA view transitions land in Chrome 111
SPA view transitions land in Chrome 111
Chrome for Developers
SPA view transitions land in Chrome 111 | Blog | Chrome for Developers
The View Transition API allows page transitions within single-page apps, and will later include multi-page apps.
Forwarded from Hacker News (yahnc_bot)
Dividing a Square into 7 Similar Rectangles https://johncarlosbaez.wordpress.com/2023/03/06/dividing-a-square-into-7-similar-rectangles/
Azimuth
Dividing a Square into 7 Similar Rectangles
This is a continuation of my post Dividing a square into similar rectangles, in which I discussed this puzzle: if you partition a square into n similar rectangles, what proportions can these rectan…
Forwarded from 蜜柑不时抱
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Forwarded from Hacker News (yahnc_bot)
Disambiguating Arm, Arm ARM, ARMv9, ARM9, ARM64, AArch64, A64, A78, ... https://nickdesaulniers.github.io/blog/2023/03/10/disambiguating-arm/
nickdesaulniers.github.io
Disambiguating Arm, Arm ARM, Armv9, ARM9, ARM64, AArch64, A64, A78, ...
😁1
Forwarded from Hacker News (yahnc_bot)
FDIC Takes over Silicon Valley Bank https://www.fdic.gov/news/press-releases/2023/pr23016.html
www.fdic.gov
FDIC Creates a Deposit Insurance National Bank of Santa Clara to Protect Insured Depositors of Silicon Valley Bank, Santa Clara…
Forwarded from Solidot
科学家发现一种利用空气发电的酶
2023-03-11 21:14:00 by 最后的守护者
根据发表在《自然》期刊上的一项研究，澳大利亚科学家发现了一种能利用空气中微量氢发电的酶。研究人员从名叫耻垢分枝杆菌（Mycobacterium smegmatis）的细菌中提取出负责利用空气中氢气的酶。名叫 Huc 的酶能将氢气转变成电流。Huc 的转换效率非常高，我们所呼吸的大气中氢气浓度只有 0.00005%，而 Huc 甚至能在低于这个浓度下消耗氢气。研究人员还发现，Huc 具有强有力的稳定性，可以冷冻起来，加热到 80 摄氏度，它仍然能维持其功能。这项研究目前处于早期阶段，它有可能成为小型飞行器使用的太阳能动力的替代。
https://www.nature.com/articles/s41586-023-05781-7
https://phys.org/news/2023-03-newly-enzyme-air-electricity-source.html
#科学
2023-03-11 21:14:00 by 最后的守护者
根据发表在《自然》期刊上的一项研究，澳大利亚科学家发现了一种能利用空气中微量氢发电的酶。研究人员从名叫耻垢分枝杆菌（Mycobacterium smegmatis）的细菌中提取出负责利用空气中氢气的酶。名叫 Huc 的酶能将氢气转变成电流。Huc 的转换效率非常高，我们所呼吸的大气中氢气浓度只有 0.00005%，而 Huc 甚至能在低于这个浓度下消耗氢气。研究人员还发现，Huc 具有强有力的稳定性，可以冷冻起来，加热到 80 摄氏度，它仍然能维持其功能。这项研究目前处于早期阶段，它有可能成为小型飞行器使用的太阳能动力的替代。
https://www.nature.com/articles/s41586-023-05781-7
https://phys.org/news/2023-03-newly-enzyme-air-electricity-source.html
#科学
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Forwarded from xkcd
'Phil Plait once pointed out that you can calculate the total angular area of the sky this way. If the sky is a sphere with radius 57.3 degrees, then its area is 4*pi*r^2=41,253 square degrees. This makes dimensional analysts SO mad, but you can't argue with results.'
Forwarded from Hacker News (yahnc_bot)
Mozilla/Sops: Simple and flexible tool for managing secrets https://github.com/mozilla/sops
GitHub
GitHub - getsops/sops: Simple and flexible tool for managing secrets
Simple and flexible tool for managing secrets. Contribute to getsops/sops development by creating an account on GitHub.
👍2
Forwarded from Hacker News (yahnc_bot)
Small Asteroid Impacts Moon https://twitter.com/dfuji1/status/1629259622619176961
X (formerly Twitter)
藤井大地 (@dfuji1) on X
私の観測史上最大の月面衝突閃光を捉えることができました！2023年2月23日20時14分30.8秒に出現した月面衝突閃光を、平塚の自宅から撮影した様子です（実際の速度で再生）。なんと1秒以上も光り続ける巨大閃光でした。月は大気がないため流星や火球は見られず、クレーターができる瞬間に光ります。
Forwarded from Hacker News (yahnc_bot)
How We Knew Space Was a Vacuum (2021) https://sky-lights.org/2021/06/14/qa-how-we-knew-space-was-a-vacuum/