Forwarded from Solidot
啄木鸟没有内置减震器保护大脑
2022-07-19 00:01
啄木鸟的头骨没有设计吸收冲击， 而是为了更有力更有效率的撞击木头。啄木鸟大脑和喙之间的海绵状骨头曾被认为是保护大脑经受反复撞击的减震器，但最新研究发现它是为了帮助头部以最小能量消耗快速深入敲击，就像是锤子。研究人员分析了六只圈养啄木鸟敲击木头的 109 个高速视频，发现鸟眼睛和头的速度基本上与喙的速度相同，意味着海绵状骨头没有压缩也就是不具有吸收冲击的功能。
2022-07-19 00:01
啄木鸟的头骨没有设计吸收冲击， 而是为了更有力更有效率的撞击木头。啄木鸟大脑和喙之间的海绵状骨头曾被认为是保护大脑经受反复撞击的减震器，但最新研究发现它是为了帮助头部以最小能量消耗快速深入敲击，就像是锤子。研究人员分析了六只圈养啄木鸟敲击木头的 109 个高速视频，发现鸟眼睛和头的速度基本上与喙的速度相同，意味着海绵状骨头没有压缩也就是不具有吸收冲击的功能。
Forwarded from Hacker News (yahnc_bot)
Hetzner to Offer First Arm-Based Dedicated Servers in Europe https://www.hetzner.com/news/07-22-rx-line/
https://t.me/+yALmL7qsYUUyZDNh
开了一个阅读频道记录每天看了什么东西，希望大家监督喵喵学习
开了一个阅读频道记录每天看了什么东西，希望大家监督喵喵学习
Telegram
猫咪阅读频道
偶尔读📖，一般摸🐟
Forwarded from Hacker News (yahnc_bot)
A little story about the `yes` Unix command https://endler.dev/2017/yes/
endler.dev
A Little Story About the `yes` Unix Command
What’s the simplest Unix command you know?<br /…
Forwarded from Hacker News (yahnc_bot)
The birth of random-access memory https://spectrum.ieee.org/the-birth-of-ram
IEEE Spectrum
The Birth of Random-Access Memory
The Manchester “Baby” was the first electronic digital computer to store a program
Forwarded from Hacker News (yahnc_bot)
The trouble with symbolic links https://lwn.net/Articles/899543/
LWN.net
The trouble with symbolic links
At the 2022 sambaXP conference, Jeremy Allison gave a talk titled 'The UNIX Filesystem API is p [...]
Forwarded from Hacker News (yahnc_bot)
Thermal Pad ‘Mod’ Makes M2 MacBook Air Faster Than 13″ M2 Pro https://www.extremetech.com/computing/338068-thermal-pad-mod-makes-m2-macbook-air-faster-than-13-m2-pro
Extremetech
Thermal Pad ‘Mod’ Makes M2 MacBook Air Faster Than 13″ M2 Pro
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喵喵小喵喵
uops.info
Latency, throughput and port usage information
for instructions on recent x86 microarchitectures
for instructions on recent x86 microarchitectures
Forwarded from Hacker News (yahnc_bot)
Why GNU grep is fast (2010) https://lists.freebsd.org/pipermail/freebsd-current/2010-August/019310.html