小爱音箱的闹铃靠谱程度太差了...

JEP draft: 64 bit object headers https://openjdk.org/jeps/8294992

https://arxiv.org/abs/2210.04045
The FBHHRBNRSSSHK-Algorithm for Multiplication in Z^{5×5}_2 is still not the end of the story 2
Manuel Kauers, Jakob Moosbauer

In response to a recent Nature article which announced an algorithm for multiplying 5×5-matrices over Z2 with only 96 multiplications, two fewer than the previous record, we present an algorithm that does the job with only 95 multiplications.

美国国家航空航天局（NASA）“双小行星重定向测试（DART）”过去两周获得的数据显示，航天器与Dimorphos的撞击成功地改变了小行星的轨道。这标志着人类第一次人为改变天体的运动。
在撞击前，Dimorphos围绕Didymos转动一周的时间为11小时55分钟，撞击后缩短为11小时23分钟，测量误差约为±2分钟。缩短的32分钟远超NASA定义成功的73秒。
（NASA）

Xpra: Multi-platform screen and application forwarding system for x11 https://xpra.org/

Verifying distributed systems with Isabelle/HOL, by Martin Kleppmann

Comments

via eatonphil@users.lobste.rs (eatonphil)

Withdrawal of OpenSSL 3.0.6 and 1.1.1r https://mta.openssl.org/pipermail/openssl-announce/2022-October/000237.html

https://twitter.com/rrwilliams/status/1565516792730189825
旧闻一则

https://aspire.eecs.berkeley.edu/2017/06/how-close-is-risc-v-to-risc-i/
How close is RISC-V to RISC-I?

Posted on June 19, 2017 by David Patterson

外骨骼“靴子”帮助更快走路

2022-10-13 16:04:00 by 空气的颜色

根据发表在《自然》期刊上的一项研究，研究人员研发出一种支持腿部运动的外骨骼。根据实验结果和现实世界的优化数据，论文作者设计出一种专门的脚踝外骨骼，包括两个脚踝各佩戴的一个外骨骼和腰部佩戴的一个电池组。该装置能让行走速度提高9%，比穿着普通鞋子的自然行走节省了 17% 的能量，相当于拿走了 9.2 公斤的包袱。论文作者表示，他们的最新研究结果表明，这种新技术能让外骨骼更贴合个性化需求，从而提升其性能。不过，今后仍需开展进一步研究推动该装置的实际应用，并探索这种技术如何应用于其他装置和活动。

#科技

A database without dynamic memory allocation https://tigerbeetle.com/blog/a-database-without-dynamic-memory/

Teenager solves stubborn riddle about prime number look-alikes https://www.quantamagazine.org/teenager-solves-stubborn-riddle-about-prime-number-look-alikes-20221013/

Replace the “very” in your sentence https://www.losethevery.com/

Some remotely exploitable Linux kernel WiFi vulnerabilities https://lwn.net/Articles/911062/