阅读

一、你缺失的那门计算机课

系统性的解释了计算机(电脑)相关的各种知识。

二、What crystals older than the sun reveal about the start of the solar system

aluminum-26,好优美的名字。

三、Why an old theory of everything is gaining new life

当某些东西变的重要时,其他东西就变的不重要了。

要使量子引力理论有效,要满足:参数数量有限且参数本身有限。

如果高能理论的行为与低能理论同样良好,那么引力就是渐进安全的。但即使某个理论是渐近安全的,在高能量下它也可能变得物理上无意义,因为它可能破坏量子理论的某些基本要素。

四、Why Pantone colors are so expensive

原来潘通色是一种色彩界的度量衡,且使用这种度量衡要向一个商业公司付费,且此领域没一个竞争者。

色彩的过度也是量子化的吗?真实的色彩远远超过潘通的色卡,相近的颜色人眼是否可以区分?多宽的普会被人眼认为是相同颜色?潘通是怎么挑选这些颜色的?

如何描述一个颜色呢?多少多少磅的黄,加上多少多少磅的红。那这个黄和红又怎么定义呢?像语言学的概念,要表示一个词的意思,需要用语言描述这个词。而这个描述的词又需要用更基本的词描述,直到用到那些大家已知的概念。

能不能制造一种可以连续显示色彩的仪器?能够制造一种稳定的环境,在该环境下可以显示「无穷极」的色彩变化。一种调波混合器?

五、Quantum frontiers may be closer than they appear

谷歌将后量子密码学转型完成的最后期限,提前至2029年。这比美国国家标准与技术研究院(NIST)设定的2035年目标提前了六年。

六、Quantum computers take a step into real materials science

量子计算机成功模拟真实磁性材料特性,实现了利用可控可编程量子系统来模拟目标量子系统性质的目的。

用一个量子系统模拟另一个,这会发展到什么限度?要模拟宇宙难道只能再造一个一模一样的宇宙吗?低维怎么模拟高维呢?两个未知数却只有一个方程要怎么解呢?

七、CERN scientists successfully turned an antiproton trap into a moving appliance

欧洲核子研究中心拥有当前世界上唯一的反质子工厂,其BASE团队成功的将92个反质子装入「彭宁离子阱(Penning trap)」中,在园区内完成了运输测试。

制造反物质主要通过粒子加速器。将质子加速到接近光速,然后撞击金属靶(通常是铱或钨)。碰撞释放的巨大能量会产生各种亚原子粒子,其中就包括反质子。再用磁场将反质子从其他亚原子粒子中筛选出来,并通过减速器对其减速和冷却。

若要制造完整的反物质原子(如反氢原子),需要将反质子和放射性同位素产生的正电子结合。反物质一旦遇到其「镜像」物质就会湮灭,所以需用势阱将其悬浮于空中。

八、

If you understand the mind, you understand that the most productive work happens when you're not working. Genius requires empty space. During rest, the default mode network in your brain activates. That is, when you stop focusing on work, your subconscious continues to do work for you, often in a more creative and effective way.

Unfortunately, we're convinced otherwise because we're wired to "fit in. " To be accepted by the tribe. To conform to the productivity obsessed culture that tells 20 year olds that if they don't grind themselves to the bone, to neglect every domain of their life except for work towards a dream that's not their own, they are wasting their lives.

Society has convinced you that performing only when it's time to perform (like procrastinating school work) is a character flaw. It's not. And you can take comfort in knowing that it's one of the most effective ways to work.

If we take a look at the lives of those like Charles Darwin, who wrote 19 books in his lifetime and discovered the theory of evolution that changed how we view the world, we find a pattern. We find that most of the world's successful creatives worked in short bursts of deep focus complimented by relentless periods of deep rest. The world wouldn't give them silence, so they had to take it.

They worked like lions, not cows. They understood that humans are wired to hunt more than they are to graze. They understood that work doesn't have to be a linear 8-16 hours every day. That's for machines. Work can be 2, 6, 9, or zero hours if it must be. If you have to discipline yourself to work, you are working on the wrong thing. If long workdays are easy and natural, lean into that, but know that intensity doesn't last forever.

The great creatives discovered that leisure was their secret weapon. The long walks. The sun by the pool. The reading, exercise, and deep conversation. These are what led to the outsized ideas. And when you are armed with the right idea, you can get 16 hours worth of results in 2, because "hours worked" is not a useful metric for value created

The mind is like the body, and intellectual athletes know that spending 8+ hours in the gym 7 days a week is not the recipe for a chiseled physique.

⸺ @thedankoe

九、What to Do

But how well do you understand something if you can't make a model of it, or write about it? Indeed, trying to express what you understand is not just a way to prove that you understand it, but a way to understand it better.

十、Why is c the symbol for the speed of light?

为什么C表示光速,有长和短两个版本的答案。

十一、要诀是松紧

从很多地方听到过类似的观点。这个重复听到类似观点的状态也重复过很多次。

十二、Matchbook Book: the archive keeping a lost design legacy alight

古老的火柴盒设计展览,很好看。

十三、张雪是个性格强硬的人

准确的避开了一些,又准确的瞄准了一些,非常好。

软件

一、Badge Generator

将SVG转为3D金属质感徽章。

二、rust-tutorial

一个针对新手的Rust快速教程,从零开始写一个管理Todos的命令行程序。

三、age

现代文件加密软件。

言论

一、

勿以己之长而盖人;勿以己之善而形人;勿以己之多能而困人。

袁黄〔明代〕

二、

事情从来不会十分明朗,一旦明朗早已为时太晚。

彼得·林奇

三、

If you put a dam on a river, it doesn't stop the flow of the water, it just reroutes.

四、

I was an ordinary person who studied hard. There are no miracle people.

理查德·费曼

五、

只有那些有耐心做好简单事情的人,才能获得轻松完成困难事情的技能。

席勒,德国诗人

六、

Problems are not stop signs, they are guidelines.

七、

在商业领域,最先做到的人有优势。但是,在研究和学术领域,成功往往不属于最先理解的人,而属于理解得最好的人,真正的优势来自于深刻、基础性的见解。

MURAT

八、

创办一家公司并不真的需要一个商业计划,而只需要前进。

马云,第一次与蔡崇信见面时说的话

九、

你并不需要谁见证,你也不需要谁认可,你也没有任何需要达成的标准 ,你更没有任何需要贴合的范式,你单纯就是可以。

和菜头

十、

It’s certainly true that the laws of physics have gotten more mathematically beautiful as we’ve understood them better.

⸺ Latham Boyle