Vim Updated 2025-07-16
Rigid body dynamics simulator Updated 2025-07-16
Ripples by ripples Updated 2025-07-16
A Baidu Baike page: baike.baidu.hk/item/層層水瀾/12386243 mentions that the score was published in 1970 by Tao Yimo (陶一陌) in a eponymous score book.
River Cam Updated 2025-07-16
Video game difficulty Updated 2025-07-16
Water Margin Updated 2025-07-16
Talks about rebellion of the oppressed (and bandits), and therefore has been controversial throughout the many Chinese dictatorships.
The book is based on real events surrounding 12th century rebel leader Song Jiang during the Song dynasty.
It is also interesting that Mao Zedong was apparently a fan of the novel, although he had to hide that to some extent due to the controversial nature of the material, which could be said to instigate rebellion.
The incredible popularity of the novel can also be seen by the large number of paintings of it found in the Summer Palace.
This is a good novel. It appeals to Ciro Santilli's sensibilities of rebelling against unfairness, and in particular about people who are at the margin of society (at the river margin) doing so. Tax the rich BTW.
It also has always made Ciro quite curious how such novels are not used as a way to inspire people to rebel against the Chinese Communist Party.
Full text uploads of Chinese versions:
- www.gutenberg.org/cache/epub/23863/pg23863.html No table of contents.
Wave equation solver Updated 2025-07-16
This section talks about solvers/simulators dedicated solving the wave equation. Of course, any serious solver will likely be able to solve a wider range of PDE, so this section contains mostly fun toys. For more serious stuff see: Section "PDE solver".
JavaScript toy solvers:
- jtiscione.github.io/webassembly-wave/index.html circular domain, create waves with mouse click
- dionyziz.com/graphics/wave-experiment/ with useless 3D WebGL visualization :-), waves with mouse click. Solving itself done on CPU, not GPU.
Wave function collapse Updated 2025-07-16
The idea the the wave function of a small observed system collapses "obviously" cannot be the full physical truth, only a very useful approximation of reality.
Because then are are hard pressed to determine the boundary between what collapses and what doesn't, and there isn't such a boundary, as everything is interacting, including the observer.
The many-worlds interpretation is an elegant explanation for this. Though it does feel a bit sad and superfluous.
Wayback Machine rate limit Updated 2025-07-16
archive.org/details/toomanyrequests_20191110 says 15 archives / minute, but apparently aslo 15 retrievals per minutes on Wikipedia, after which 5 min blacklist. After that, you start getting some 429s, and after that, server refuses to connect at al.
CDX: no limits apparently, they might just throttle you? Made 10k requets on bash loop and was going fine. But not that if you get blacklisted by create/fetch requests blacklist, server fails to connect here as well.
Boundary condition Updated 2025-07-16
Chess Updated 2025-07-16
Education is broken Updated 2025-07-16
Once Ciro was at a University course practical session, and a graduate was around helping out. Ciro asked if what the graduate did anything specifically related to the course, and they replied they didn't. And they added that:Even though Ciro was already completely disillusioned by then, that still made an impression on him. Something is really wrong with this shit.
One has to put the bread on the table.
Other people that think that the educational system is currently bullshit as of 2020:
- Einstein, quoted in The New York Times, March 13 1949, p. 34:[ref]
- Ron Maimon
- Xavier Niel: fortune.com/2018/11/30/billionaire-xavier-niel/ "Want This Billionaire's Attention? Drop Out of School" (2018). He also created 42.
- Year On
- by Zach Caceres
- Anand Raja submission "Students and Universities": publications.parliament.uk/pa/cm200809/cmselect/cmdius/170/170ii.pdf, www.linkedin.com/in/anandraja/.
- xsrus.com/life-school-and-the-80-20-rule. Also GPA 2.0 linked from xsrus.com/ to xsrus.com/gpa-2.0 but down now
- A Mathematician's Lament by Paul Lockhart www.maa.org/external_archive/devlin/LockhartsLament.pdf
- www.learningforreal.org/quotes/ quotes Elbert Hubbard:She's somewhat focused on the performing arts, but what she says applies basically equally well to the natural sciences. A talk: www.youtube.com/watch?v=ggYL9gQeVEk She talks about authentic learning.
- www.youtube.com/watch?v=iG9CE55wbtY Do schools kill creativity? by Sir Ken Robinson (2017)
- Erik Finman thinks school is broken
- sociable.co/technology/silicon-valley-education-students-entrepreneurs/ Bringing Silicon Valley into Schools: How to Make Students Entrepreneurs of Their Own Education (2016)
- hackeducation.com/2015/04/25/factory-model The Invented History of 'The Factory Model of Education' by Audrey Watters (2015)
- www.forbes.com/councils/forbescoachescouncil/2025/04/17/the-ai-fear-factor-why-leaders-resist-and-how-to-move-forward/ The Single Best Idea for Reforming K-12 Education by Steve Denning (2011)
Educational systems are carried by Indian YouTubers meme
. Source. Over a Dmitriy Khaladzhi carrying a horse over his shoulders meme template.Peter Gregory from Silicon Valley shows his hate for university in a fake TED talk
. Source. Key moment: someone from the crowd cries:to which the speaker replies:The true value of snake oil is intangible as well.
David Deutsch on Education interviewed by Aidan McCullen (2019)
Source. Key quote that hits the nail:
So right... the purpose of education is not to teach facts. The purpose of education is to propose ways of thinking, which students themselves must try to apply and decide if it suits them! And use the patterns of thinking that are useful to reach their goals.
Like Noam Chomsky, he proposes education has been a system of indoctrination more than anything else e.g. twitter.com/daviddeutschoxf/status/1406374921748496386:At twitter.com/DavidDeutschOxf/status/1051475227476185089 another good quote by Churchill:
All compulsory education, "tough" or not, "love" or not, in camps or not, and whether it "traumatises" or not, is a violation of human rights.
Headmasters have powers at their disposal with which Prime Ministers have never yet been invested.
Quote selection by Charles Bukowski (2016)
Source. Generally speaking, you're free until you're about 4 years old. Then you go to grammar school and then you start becoming... oriented and shoved into areas. You lose what individualism you have, if you have enough of course, you retain some of it... Then you work the 8 hour job with almost a feeling of goodness, like you're doing something. Then you get married like marriage is a victory, and you have children like children is a victory... Marriage, birth, children. It's something they have to do because there's nothing else to do. There's no glory in it, there's no steam, there's no fire. It's very, very flat... You get caught into the stricture of what you're supposed to be and you have no other choice. You're finally molded and melded into what you're supposed to be. I didn't like this.
Glycoprotein Updated 2025-07-16
Good video game Updated 2025-07-16
Laurel and Hardy Updated 2025-07-16
Max von Laue Updated 2025-07-16
Philosophy of education Updated 2025-07-16
Receptor (biochemistry) Updated 2025-07-16
Semiconductor diode Updated 2025-07-16
I-V curve of a diode
. Source. This image shows well how the diode is only an approximation of the ideal one way device. Notably, there is this non-ideal voltage drop across the device, which can be modelled as constant. It is however an exponential in fact.Diodes Explained by The Engineering Mindset (2020)
Source. Good video:- youtu.be/Fwj_d3uO5g8?t=153 how it works
- youtu.be/Fwj_d3uO5g8?t=514 applications:
- protection against accidental battery inversion
- rectifiers, notably mentions a diode bridge
Coral of life Updated 2025-07-16
Coral of life by János Podani (2019)
Source. Fantastic work!!! Some cool things we can easily see: Unlisted articles are being shown, click here to show only listed articles.