Example of a public Zettelkasten using TiddlyWiki by Soren Bjornstad. https://zettelkasten.sorenbjornstad.com/

He's open sourced portions of it for use by others who are interested.

Reply to u/Wooden-School-4091 at https://www.reddit.com/r/Zettelkasten/comments/17kui2u/analog_zettelkasten_for_natural_sciences/

Given that Carl Linnaeus "invented" the standardized 3x5 inch index card and used it heavily in his scientific work (read Isabelle Charmantier and Staffan Müller-Wille's works for more on his practice), and a variety of others including me, use it for mathematics, physics, chemistry, biology, etc., Zettelkasten can certainly be used for STEM, STEAM, and any of the natural sciences.

See also, notes and links at: https://hypothes.is/users/chrisaldrich?q=tag%3A%22zettelkasten+for+studying%22

If I were using it for classes/university/general studying via lectures, I'd base my practice primarily on Cornell Notes in combination with creating questions/cards for spaced repetition and/or a variation on Leitner's System.

Some of the best material on spaced repetition these days can be found via:

• Soren Bjornstad: https://controlaltbackspace.org/repeat/
• Piotr Wozniak: https://super-memory.com/articles/20rules.htm

and other material on their sites.

Beyond this, I'd focus my direct zettelkasten practice less on the learning portion and more on the developing or generating ideas portion of the work. Some of my practice with respect to mathematics can be found here: https://www.reddit.com/r/Zettelkasten/comments/17bqztm/applying_zettelkasten_for_math_heavy_subjects/

For those interested, it may bear mentioning that Bjornstad, an engineer at Remnote, has a TiddlyWiki-based zettelkasten at https://zettelkasten.sorenbjornstad.com/#PublicHomepage:PublicHomepage which he demonstrates with a walk through at https://www.youtube.com/watch?v=GjpjE5pMZMI

Marshall, in looking at your cards, I'm curious how easy/hard you feel it is to remember longer portions of full quotes like your H.L. Menken example using only spaced repetition? I usually find it far more taxing and not as long lasting as using other more classical mnemonic methods (method of loci/songlines).

Piotr Wozniak has some material on creating/designing more concrete cards for spaced repetition that I've found generally helpful. I know that Andy Matuschak and Soren Bjornstad have some ideas, experience, and research in the space but I've yet to see more deep research on the effectiveness of these more specific practices at scale or beyond the anecdotal.

https://marshallk.com/7-steps-i-take-to-get-value-from-what-i-read-notes-on-note-taking-review

http://ratfactor.com/cards/cards-inspiration

While his collection of public notes is extremely limited, Dave Gauer does provide a list of his inspiration and precursors mostly focusing on Soren Bjornstad's influence as well as Ward Cunningham's wiki.c2.com site and inspiration from Umberto Eco and Vladimir Nabokov.

https://www.youtube.com/watch?v=9eP8Bq9x5yw

A nice overview of spaced repetition systems.

Soren Bjornstad previously worked for Anki and is now at Remnote.

I wonder if anyone has created a spaced repetition system set up that leverages Hypothes.is? It would be cool to write questions and answers as one takes notes in Hypothes.is and then be able to quickly/easily export those annotations into a spaced repetition system.

Example:

Q: What is the best annotation tool on the inernet?

A: Hypothes.is