Ciro Santilli @cirosantilli 40

electroweak interaction + strong interaction.

Appears to be an unsolved physics problem. TODO why? Don't they all fit into the Standard Model already? So why is strong force less unified with electroweak, than electromagnetic + weak is unified in electroweak?

In 2020 physics, best explained by general relativity.

TODO: does old Newtonian gravity give different force results than general relativity?

The type of feeling of confusion and distrut for your sense that some Koans attempt to instill.

Ciro Santilli's preferred version of it is physics and the illusion of life.

Some notable references:

This is perhaps the most popular version of Great doubt in 21st century China

Fuller quote as seen e.g. at: www.hrfjw.com/fjrw/hcrw/ywfs/324750.htmltranslation;k.sina.cn/article_5668613235_151e02c7300100wutq.html attributes it to modern day Chinese "Master Chongci" (崇慈法师).

This is a weak point of grep, it can't handle large lines that don't fit fully into memory:

A discrete 2D game on a rectangular grid: towardsdatascience.com/reinforcement-learning-implement-grid-world-from-scratch-c5963765ebff

This is analogous to many traditional board games such as chess, the concept is very natural and maps well into computer.

The downsides of gridworld games are:

Hmmm, he does not know how to spell guerilla? sic? www.quora.com/What-is-the-correct-spelling-guerilla-or-guerrilla

Note to self: if you are going to commit a crime, don't publish your plans online.

Ross Ulbricht's diaries come to mind.

That's how Russian shadow library maintainers do it, they know how to crime good old Russians. Maybe there is a good thing about having dictatorships in the world that give zero fucks about American copyright laws. There will always be some random Russian academic who will implement this and not go to jail. Maybe it's even state sponsored.

Lists:

The most popular programming news sharing forum of the 2010's by far. If your content gets shared there, and it stays on top for a day, the traffic peak will be incredible. Reddit posts are sure to follow.

Basically a programming-only Reddit-lite.

Ciro Santilli had a few of his content shared there as mentioned at the best articles by Ciro Articles.

The half-life of radioactive decay, which as discovered a few years before quantum mechanics was discovered and matured, was a major mystery. Why do some nuclei fission in apparently random fashion, while others don't? How is the state of different nuclei different from one another? This is mentioned in Inward Bound by Abraham Pais (1988) Chapter 6.e Why a half-life?

The term also sees use in other areas, notably biology, where e.g. RNAs spontaneously decay as part of the cell's control system, see e.g. mentions in E. Coli Whole Cell Model by Covert Lab.

The voltage changes perpendicular to the current when magnetic field is applied.

An intuitive video is:

The key formula for it is:where:

Applications:

Other more precise non-classical versions:

Bibliography:

In some contexts, we want to observe what happens for a given fixed magnetic field strength on a specific plate (thus $t$ and $n$ are also fixed).

In those cases, it can be useful to talk about the "Hall resistance" defined as:So note that it is not a "regular resistance", it just has the same dimensions, and is more usefully understood as a proportionality constant for the voltage given an input $I_x$ current:

This notion can be useful because everything else being equal, if we increase the current $I_x$, then $V_y$ also increases proportionally, making this a way to talk about the voltage in a current independent manner.

And this is particularly the case for the quantum Hall effect, where $R_{xy}$ is constant for wide ranges of applied magnetic field and TODO presumably the height $t$ can be made to a single molecular layer with chemical vapor deposition of the like, and if therefore fixed.