LC circuit Updated 2025-07-16
When Ciro Santilli was studying electronics at the University of São Paulo, the courses, which were heavily inspired from the USA 50's were obsessed by this one! Thinking about it, it is kind of a cool thing though.
That Wikipedia page is the epitome of Wikipedia failure to explain things in a way that is of any interest to any learner. Video 1. "Tutorial on LC resonant circuits by w2aew (2012)" is the opposite.
Tutorial on LC resonant circuits by w2aew (2012)
Source. - youtu.be/hqhV50852jA?t=239 series LC circuit on a breadboard driven by an AC source. Shows behaviour on oscilloscope as source frequency is modified. We clearly see voltage going to zero at resonance. This is why thie circuit can be seen as a filter.
- youtu.be/hqhV50852jA?t=489 shows the parallel LC circuit. We clearly see current reaching a maximum on resonance.
Introduction to LC Oscillators by USAF (1974)
Source. - youtu.be/W31CCN_ZF34?t=740 mentions that LC circuit formation is the root cause for Audio feedback with a quick demo. Not very scientific, but cool.
LC circuit by Eugene Khutoryansky (2016)
Source. Exactly what you would expect from an Eugene Khutoryansky video. The key insight is that the inductor resists to changes in current. So when current is zero, it slows down the current. And when current is high, it tries to keep it going, which recharges the other side of the capacitor. TEM vs SEM Updated 2025-07-16
Scanning electron microscope Updated 2025-07-16
The Scanning Electron Microscope by MaterialsScience2000 (2014)
Source. Shows operation of the microscope really well. Seems too easy, there must have been some extra setup before however. Impressed by how fast the image update, it is basically instantaneous. Produced by Prof. Dr.-Ing. Rainer Schwab from the Karlsruhe University of Applied Sciences.Mosquito Eye Scanning Electron Microscope Zoom by Mathew Tizard (2005)
Source. Video description mentions is a composite video. Why can't you do it in one shot? Scanning tunnelling microscope Updated 2025-07-16
It sees and moves individual atoms!!!
Transmission electron microscopy Updated 2025-07-16
Transmission Electron Microscope by LD SEF (2019)
Source. Images some gold nanopraticles 5-10 nm. You can also get crystallographic information directly on the same machine. Cryogenic electron microscopy Updated 2026-08-21
This technique has managed to determine protein 3D structures for proteins that people were not able to crystallize for X-ray crystallography.
It is said however that cryoEM is even fiddlier than X-ray crystallography, so it is mostly attempted if crystallization attempts fail.
We just put a gazillion copies of our molecule of interest in a solution, and then image all of them in the frozen water.
Each one of them appears in the image in a random rotated view, so given enough of those point of view images, we can deduce the entire 3D structure of the molecule.
Ciro Santilli once watched a talk by Richard Henderson about cryoEM circa 2020, where he mentioned that he witnessed some students in the 1980's going to Germany, and coming into contact with early cryoEM. And when they came back, they just told their principal investigator: "I'm going to drop my PhD theme and focus exclusively on cryoEM". That's how hot the cryo thing was! So cool.
Electric battery Updated 2025-07-16
Hydroelectricity Updated 2025-07-16
Nuclear power Updated 2025-07-16
Education is broken Updated 2026-01-30
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)
The problem with education by Ciro Santilli
. Source. In this video Ciro Santilli exposes his fundamental philosophy regarding why Education is broken. This philosophy was the key motivation behind the failed OurBigBook Project.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.
Educational technology Updated 2025-07-16
Free education Updated 2025-07-16
Gifted education Updated 2025-07-16
If school weren't bullshit, 99% of students would be in gifted education for what they truly love and are good at.
What is sad about many programs is that they are exclusivist and non scalable, selecting people some how and non scalably educating them. We need a more "here's some projects let's do them whoever can" approach to things, maybe like Google Summer of Code.
Related programs:
Recitation class Updated 2025-07-16
School Updated 2025-07-16
Basically the same remarks as for university, just 10 times more useless, see also: Section "Motivation".
Science, technology, engineering, and mathematics Updated 2025-07-16
K-12 Updated 2025-07-16
University Updated 2025-09-09
As of 2020, university has the following very important applications:Notably, Education is an IQ test, not a way to learn useful and beautiful things.
- meet an intelligent sexual partner (see also: Section "Sexual selection", Section "The main function of university is sexual selection") and or have fun and or come out of the closet
- get you in debt if you are from the United States
One major issue is that teachers don't have the right incentive to, nor are selected to, teach well. Thus the existence of Rate My Professors! But we can do better...
Which is why Ciro Santilli wants to destroy its current format with OurBigBook.com. He believes that we can find a more efficient organization to achieve both the social and research functions of university, by first doing as much as possible online
Academia Updated 2025-07-16
Learned society Updated 2025-07-16
There are unlisted articles, also show them or only show them.

