- Ergobaby Omni Four Position Baby carrier. TODO manual:
- possibly:
- another model, omni 360:
- TRIPP TRAPP Beech, serial 72666145 purchase 30/05/2023 bought from: www.bellababy.co.uk/
- TRIPP TRAPP Newborn set, serial 101BB1280664, purchase 30/05/2023 bought from: www.bellababy.co.uk/
- Silver Cross Dune:
- Chicco Next2Me Magic2 crib, or something similar. Given to us without manual so not 100% sure. www.chicco.co.uk/products/8058664145423.chicco-next2me-magic2-co-sleeping-crib.html Manual: www.manualslib.com/products/Chicco-Next-2-Me-Magic-11096854.html
Some possible/not possible sources that could be used to manually bootstrap content:
- LibreTexts. Good project. "Teacher-only-content" unfortunately as usual. But besides that fundamental flaw, they do exactly what we want to do in a sense.
- OpenStax: CC BY. This could be a great entry point, as they already have some university integration going on, and might be interested in this project.
- physics.stackexchange.com/questions/6157/list-of-freely-available-physics-books "List of freely available physics books" explicitly asks for:but the thread was locked, and basically none of the sources in the answers have free licenses, nor do they note it. It just seems that the physicists don't know what a free license is.
a list of physics books with open-source licenses, like Creative Commons, GPL
- MIT OpenCourseWare: CC BY-NC-SA, so not really usable
- github.com/certik/theoretical-physics: MIT License. Workable but wonky.
- subwiki.org/: wiki with some upper graduate math subjects presumably by this Indian dude: www.linkedin.com/in/vipul-naik-0ab1898/. Description on his homepage: vipulnaik.com/subwiki/. He's also got other interesting but not so relevant projects:He's also into Stack Overflow, Quora and Wikipedia editing. That's a cool dude. He's into in LessWrong it seems.
- pro freer immigration laws: vipulnaik.com/openborders/
- vipulnaik.com/cognito-mentoring/ free mentoring project for interested students
- massive mathematics books
- Infinite Napkin.CC BY-SA mathematics infinite book: github.com/vEnhance/napkin/issues/77. Very similar type of content to what we want in this project!
- Stacks Project
Existing lecture notes by students:
- github.com/mb2g17/NotesNetworkArchive Google Docs-based: docs.google.com/document/d/1OIcQ8dJ_FAhdkirU94M29-ZbNZ4oQs1LbWF3Nz-mq_U/edit#heading=h.vehxib58w1iw. An actual student uploading tons of lecture notes in one coherent system. CC BY-NC-SA unfortunately.
- academia.stackexchange.com/questions/148261/do-you-keep-your-study-notes-publicly-available mentions:Related: academia.stackexchange.com/questions/40381/how-common-is-it-that-professors-have-their-students-write-textbooks
- Cambridge Mathematics Lecture Notes by Dexter Chua (2014-2018)Comments:
Lecture note upload website:
- nexusnotes.com likely illegal reuploads of PDFs from teachers
- www.studocu.com/en-gb Paywall. PDF uploads. Unclear if simple teacher reuploads or actual novel notes.
- www.studydrive.net/
- Chinese GitHub repos. Some of these are very advanced in terms of content quantity and organizational quality! The Chinese are miles ahead in this area:
- github.com/PKUanonym/REKCARC-TSC-UHT Guidance for courses in Department of Computer Science and Technology, Tsinghua University. Chinese. Appears to try and store all past exams.
- github.com/lib-pku/libpku
- github.com/openwhu/OpenWHU: Wuhan University
- github.com/USTC-Resource/USTC-Course: USTC
- github.com/Zeal-L/UNSW: UNSW from Australia, but by a Chinese dude
- github.com/apachecn/mit-18.06-linalg-notes: translation of MIT course to Chinese
- github.com/chenyang1999/MyComputerCollegeCourses: TODO which univeresity
- github.com/elder-frog/OpenCourseCatalog: nothing to do with this project, but since I'm making a list, this dude is copying YouTube videos to Bilibili. And he's edgy anti-CCP on Twitter, what a legend.
- github.com/TheBloodthirster/BUAA_Course_Sharing: en.wikipedia.org/wiki/Beihang_University
- github.com/1051727403/SHU-CS-Source-Share: ShangHai University CS course source code
- github.com/Willie169/tw-gifted-k12-notes: Taiwanese high school notes
Exams uploads:
- questions.tripos.org/part-ib/all/ University of Cambridge Mathematics past examinations
How to convince teachers to use CC BY-SA by 
Ciro Santilli 35 Updated 2025-03-28 +Created 1970-01-01
Ciro Santilli 35 Updated 2025-03-28 +Created 1970-01-01A major difficulty of getting such this to work is that may university teachers want to retain closed copyright of their work because they:
- want to publish a book later and get paid. Yes, the root problem is that teachers get paid way too little and have way too little job security for the incredibly important and difficult extremely difficult job they are doing, and we have to vote to change that
- are afraid that if amazing material is made freely available, then they would not be needed and lose their jobs. Once again, job security issue.
- believe that if anyone were allowed to touch their precious content, those people would just "screw it up" and make it worse
- don't even want to publish their notes online because "someone will copy it and take their credit". What a mentality! In order to prevent a theft, you are basically guaranteeing that your work will be completely forgotten!
- don't want students to read the notes and skip class, because spoken word has magic properties and imparts knowledge that cannot otherwise conveyed by a book
- are afraid that mistakes will be found in their material. Reputation is of course everything in academia, since there is no money.So it's less risky to have closed, more buggy notes, than open, more correct ones.This can be seen clearly for example on Physics Stack Exchange, and most notably in particle physics (well, which is basically the only subject that really gets asked, since anything more experimental is going to be blocked off by patents/interlab competition), where a large proportion incredibly amazing users have anonymous profiles.They prefer to get no reputation gains from their amazing contributions, due to the fear that a single mistake will ruin their career.This is in stark contrast for example to Stack Overflow, where almost all top users are not anonymous:List of top users: physics.stackexchange.com/users?tab=Reputation&filter=all and some notable anonymous ones:
- physics.stackexchange.com/users/2451/qmechanic
- physics.stackexchange.com/users/50583/acuriousmind
- physics.stackexchange.com/users/43351/profrob
- physics.stackexchange.com/users/84967/accidentalfouriertransform
- physics.stackexchange.com/users/56997/curiousone
- physics.stackexchange.com/users/139781/probably-someone
- physics.stackexchange.com/users/206691/chiral-anomaly
Therefore the only way is to find teachers who are:The forced option therefore seems like a more bulk efficient starting point for searches.
- enlightened to use such licenses
- forced by their organizations to use such licenses
No matter how much effort a single person puts into writing perfect tutorials, they will never beat 1000x people + an algorithm.
It is not simply a matter of how much time you have. The fundamental reason is that each person has a different background and different skills. Notably the young students have radically different understanding than that of the experienced teacher.
Therefore, those that refuse to contribute to such platforms, or at least license their content with open licenses, will inevitably have their work forgotten in favor of those that have contributed to the more open platform, which will eventually dominate everything.
Perhaps OurBigBook.com is not he killer platform that will make this happen. Perhaps the world is not yet ready for it. But Ciro believes that this will happen, sooner or later, inevitable, and he wants to give it a shot.
Also worth checking:
- jornal.usp.br/universidade/usp-de-sao-carlos-oferece-aulas-de-graduacao-em-matematica-e-estatistica-abertas-ao-publico/ "Open Classroom" program from the University of São Paulo. We should Google for "Open Classroom" a bit more actually.
- open.ed.ac.uk/about/: talk only
2017-04 Nike Flex Experience RN 6 Grey running shoes by Ciro Santilli 35 Updated 2025-03-28 +Created 1970-01-01
Ciro Santilli 35 Updated 2025-03-28 +Created 1970-01-01Amazing shoes! Wore them to their destruction.
Shoestring length: 1.185m
Replaced with after bicycle ate it: 1.0m, also worked but at limit.
Size: EUR 45.
Basically everything that applies to the blogs section also applies here, but university lecture notes are so important to us that they deserve a bit more talk.
It is arguable that this is currently the best way to learn any university subject, and that it can already be used to learn any subject.
We basically just want to make the process more efficient and enjoyable, by making it easier:
- to find what you want based on an initial subject hit across the best version of any author
- and to publish your own stuff with one click, and get feedback if people like it or not, and improvement suggestions like you do you GitHub
One major problem with lecture notes is that, as the name suggests, they are merely a complement to the lecture, and don't contain enough detail for you to really learn solely from them without watching the lecture.
The only texts that generally teach in enough depth are actual books, which are almost always commercial.
So in a sense, this project can be seen as a path to upgrade free lecture notes into full blown free books, from which you can learn from scratch without any external material.
And a major way in which we believe this can be done is through the reuse of sections of lecture notes by from other universities, which greatly reduces the useless effort of writing things from scratch.
The intended mental picture is clear: the topics feature docs.ourbigbook.com/#ourbigbook-web-topics will is intended to act as the missing horizontal topic integration across lecture notes of specific universities, e.g:
MIT calculus course UCLA calculus course
* Calculus <---> * Calculus
* Limit <---> * Limit
* Limit of a function
* Limit of a series <---> * Limit of a series
* Derivative <---> * Derivative
* L'Hôpital's rule
* Integral <---> * Integral
Example topics page of OurBigBook.com
. One important advantage of lecture notes is that since they are written by the teacher, they should match exactly what "students are supposed to learn to get good grades", which unfortunately is a major motivation for student's learning weather we want it or not.
One big open question for this project is to what extent notes written for lectures at one university will be relevant to the lectures at another university?
Is it possible to write notes in a way that they are naturally reusable?
It is our gut feeling that this is possible. But it almost certainly requires an small intentional effort on the part of authors.
The question then becomes whether the "become famous by getting your content viewed in other universities" factor is strong enough to attract users.
And we believe that it might, it just might be.
For sizing see also: Ciro Santilli's body.
Where blog is taken in a wide sense, including e.g. Medium, WordPress, Facebook, Twitter, etc., etc.
The main shortcoming of blogs is the lack of topic convergence across blogs. Each blog is a moderated castle. So who is the best user for a given topic, or the best content for a given tag, across the entire website?
The only reasonable free material we have for advanced subjects nowadays are university lecture notes.
While some of those are awesome, when writing a large content, no one can keep quality high across all sections, there will always be knowledge that you don't have which is enlightening. And Googlers are more often than not interested only in specific sections of your content.
Our website aims to make smaller subjects vertically curated across horizontal single author tutorials.
MIT calculus course UCLA calculus course
* Calculus <---> * Calculus
* Limit <---> * Limit
* Limit of a function
* Limit of a series <---> * Limit of a series
* Derivative <---> * Derivative
* L'Hôpital's rule
* Integral <---> * IntegralSome more links:
- prose.sh/ multiblog, the only feature is easy of publishing from CLI
~8GB,
lsblk reports 7796176 * 1KB = 7983284224 bytes.We got a handful of those from École Polytechnique at the end of studies I think.
They are shaped like bicornes, which is super cool, but also super impractical!
Markings: "AX ÉCOLE POLYTECHNIQUE PROMOTION X2009"
20.04
gnome-disks program reports it as: "SMI USB DISK".From Ubuntu 20.04 on an ext4 formatted one:With Linux Unified Key Setup + ext4 the results are similar, maybe hdparam bypasses it?
/dev/sdb:
Timing cached reads: 28656 MB in 1.99 seconds = 14421.31 MB/sec
SG_IO: bad/missing sense data, sb[]: 70 00 05 00 00 00 00 0a 00 00 00 00 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Timing buffered disk reads: 42 MB in 3.03 seconds = 13.88 MB/sec/dev/sdb:
Timing cached reads: 28326 MB in 1.99 seconds = 14251.55 MB/sec
SG_IO: bad/missing sense data, sb[]: 70 00 05 00 00 00 00 0a 00 00 00 00 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Timing buffered disk reads: 38 MB in 3.11 seconds = 12.23 MB/secgnome-disks LUKS + ext4 benchmark with default params also gives about 14 MB/s.General information: Micro Bit v1
The file:contains:
/media/$USER/MICROBIT/DETAILS.TXTDAPLink Firmware - see https://mbed.com/daplink
Version: 0234
Build: Oct 12 2015 14:53:222022-10-14: stopped being able to connect to Ubuntu 22.04. Was trying to do a UART video demo, connected USB, disconnected, connected, disconnected several times on different filming attempts. Was working some of the time, Ubuntu did recognize it, I even saw UART output for sure, but was a bit unstable. But then at one point it just stopped getting recognized by Ubuntu 100% of the time. The board is still being powered by USB, and the previously flashed program still runs, but nothing showed on
sudo dmesg -w at all, and I can't reprogram it!A day later, managed to get tit to connect once more with a different cable, but just once!
[15310.385055] usb 1-5: new full-speed USB device number 38 using xhci_hcd
[15310.534996] usb 1-5: New USB device found, idVendor=0d28, idProduct=0204, bcdDevice=10.00
[15310.535000] usb 1-5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[15310.535001] usb 1-5: Product: MBED CMSIS-DAP
[15310.535002] usb 1-5: Manufacturer: MBED
[15310.535003] usb 1-5: SerialNumber: 9900023436424e45001d30150000005d00000000cb8928bd
[15310.541267] usb-storage 1-5:1.0: USB Mass Storage device detected
[15310.541643] scsi host4: usb-storage 1-5:1.0
[15310.542658] hid-generic 0003:0D28:0204.000A: hiddev1,hidraw2: USB HID v1.00 Device [MBED MBED CMSIS-DAP] on usb-0000:00:14.0-5/input3
[15310.543121] cdc_acm 1-5:1.1: ttyACM0: USB ACM device
[15311.549969] scsi 4:0:0:0: Direct-Access MBED DAPLINK VFS 0.1 PQ: 0 ANSI: 2
[15311.550273] scsi 4:0:0:0: Attached scsi generic sg1 type 0
[15311.550825] sd 4:0:0:0: [sdb] 16512 512-byte logical blocks: (8.45 MB/8.06 MiB)
[15311.551052] sd 4:0:0:0: [sdb] Write Protect is off
[15311.551054] sd 4:0:0:0: [sdb] Mode Sense: 03 00 00 00
[15311.551204] sd 4:0:0:0: [sdb] No Caching mode page found
[15311.551207] sd 4:0:0:0: [sdb] Assuming drive cache: write through
[15311.572160] sd 4:0:0:0: [sdb] Attached SCSI removable disk
[15316.317438] usb 1-5: reset full-speed USB device number 38 using xhci_hcd
[15316.445093] usb 1-5: device descriptor read/64, error -71
[15316.681102] usb 1-5: device descriptor read/64, error -71
[15316.917102] usb 1-5: reset full-speed USB device number 38 using xhci_hcd
[15317.045028] usb 1-5: device descriptor read/64, error -71
[15317.281149] usb 1-5: device descriptor read/64, error -71
[15317.517154] usb 1-5: reset full-speed USB device number 38 using xhci_hcd
[15317.517466] usb 1-5: Device not responding to setup address.
[15317.725358] usb 1-5: Device not responding to setup address.
[15317.933042] usb 1-5: device not accepting address 38, error -71
[15318.061027] usb 1-5: reset full-speed USB device number 38 using xhci_hcd
[15318.061347] usb 1-5: Device not responding to setup address.
[15318.269270] usb 1-5: Device not responding to setup address.
[15318.477018] usb 1-5: device not accepting address 38, error -71
[15318.477153] usb 1-5: USB disconnect, device number 38
[15318.652912] usb 1-5: new full-speed USB device number 39 using xhci_hcd
[15318.785044] usb 1-5: device descriptor read/64, error -71
[15319.021068] usb 1-5: device descriptor read/64, error -71
[15319.257030] usb 1-5: new full-speed USB device number 40 using xhci_hcd
[15319.385075] usb 1-5: device descriptor read/64, error -71
[15319.621147] usb 1-5: device descriptor read/64, error -71
[15319.729170] usb usb1-port5: attempt power cycle
[15320.384941] usb 1-5: new full-speed USB device number 41 using xhci_hcd
[15320.385176] usb 1-5: Device not responding to setup address.
[15320.593188] usb 1-5: Device not responding to setup address.
[15320.801023] usb 1-5: device not accepting address 41, error -71
[15320.928909] usb 1-5: new full-speed USB device number 42 using xhci_hcd
[15320.929073] usb 1-5: Device not responding to setup address.
[15321.137244] usb 1-5: Device not responding to setup address.
[15321.344947] usb 1-5: device not accepting address 42, error -71
[15321.345173] usb usb1-port5: unable to enumerate USB device
[15321.384929] FAT-fs (sdb): unable to read boot sector to mark fs as dirtySome threads:
- askubuntu.com/questions/1317548/webusb-doesnt-work-connecting-to-microbit after system upgrade, Ubuntu sees it but fails
- askubuntu.com/questions/1288738/cannot-pair-microbit-through-usb-on-xubuntu-16
Exact same USB and port could still mount the Raspberry Pi Pico.
Ubuntu 23.04 install:
sudo apt install rbaseHello world:
R -e 'print("hello world")'Install a package, e.g. Bookdown:
sudo R -e 'install.packages("bookdown")'
Ciro is looking for:
- university teachers who might be interested in trying it out as described at Section "Action plan", especially those who already use open licenses for their lecture notes
- funding possibilities for this project, including donations as mentioned at Section "Sponsor Ciro Santilli's work on OurBigBook.com" and contracts
The initial incentive for the creators is to make them famous and allow them to get more fulfilling jobs more easily, although Ciro also wants to add money transfer mechanisms to it later on.
We can't rely on teachers writing materials, because they simply don't have enough incentive: publication count is all that matters to their careers. The students however, are desperate to prove themselves to the world, and becoming famous for amazing educational content is something that some of them might want to spend their times on, besides grinding for useless grade.
Start with consulting for universities to get some cash flowing.
Help teachers create perfect courses.
At the same time, develop the website, and use the generated content to bootstrap it.
Choose a domain of knowledge, generate perfect courses for it, and find all teachers of the domain in the world who are teaching that and help them out.
Then expand out to other domains.
TODO: which domain of knowledge should we go for? The more precise the better.
- maths is perfect because it "never" changes. But does not make money.
- computer science might be good, e.g. machine learning.
Some of the contributions are subjectively self evaluated based on:
- How many significant lines changed (no indentation changes, moves, mass refactoring, trivial tests, etc.):
0 only trivial changes 1 < 20 2 < 150 3 150
- How hard it was to make it. 4 algorithmic lines are harder than 100 web development/documentation lines.
Pinned article: ourbigbook/introduction-to-the-ourbigbook-project
Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
We have two killer features:
- topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculusArticles of different users are sorted by upvote within each article page. This feature is a bit like:
- a Wikipedia where each user can have their own version of each article
- a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
Figure 1. Screenshot of the "Derivative" topic page. View it live at: ourbigbook.com/go/topic/derivative - local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
- to OurBigBook.com to get awesome multi-user features like topics and likes
- as HTML files to a static website, which you can host yourself for free on many external providers like GitHub Pages, and remain in full control
Figure 2. You can publish local OurBigBook lightweight markup files to either OurBigBook.com or as a static website.
Figure 3. Visual Studio Code extension installation.
Figure 4. Visual Studio Code extension tree navigation.
Figure 5. . You can also edit articles on the Web editor without installing anything locally. Video 3. Edit locally and publish demo. Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension.Video 4. OurBigBook Visual Studio Code extension editing and navigation demo. Source. - Internal cross file references done right:
- Infinitely deep tables of contents:
Figure 6. Dynamic article tree with infinitely deep table of contents.Live URL: ourbigbook.com/cirosantilli/chordateDescendant pages can also show up as toplevel e.g.: ourbigbook.com/cirosantilli/chordate-subclade
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact