Katja and I made some snacks
Hors d’oeuvre
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Monthly Archives: November 2024
MediaWiki Transfer
I have a MediaWiki instance with 153 pages. It needs transferred to a Markdown based context with a git controlled environment. Here are some optioned:
https://github.com/peterjc/mediawiki_to_git_md
https://github.com/philipashlock/mediawiki-to-markdown
https://www.mediawiki.org/wiki/Help:Export
Venn diagrams
I found the following resources really helpful with boolean operators and Venn diagrams.
Snarky Math (Director). (2021, October 21). Can you draw a Venn diagram for 4 sets? | Why Venn diagrams are not easy [Streamed]. Snarky Math. https://youtu.be/IekSOZIF5uI
Student Contributors The University of Edinburgh School of Informatics. (n.d.). Better Informatics. Betterinformatics.com. Retrieved November 10, 2024, from https://betterinformatics.com/resources/inf1-cl/venn/
This one allows prime sets: https://statpowers.com/venn.htmlThe University of Edinburgh School of Informatics. (n.d.). Venn Diagrams. The University of Edinburgh School of Informatics Teaching Aids. Retrieved November 10, 2024, from https://www.inf.ed.ac.uk/teaching/courses/inf1/cl/tools/venn/
I haddn't really thought about what they represent or the appropriateness of their use. https://www.sciencedirect.com/science/article/abs/pii/B9780444529374500113 https://blog.jooq.org/say-no-to-venn-diagrams-when-explaining-joins/ https://github.com/tctianchi/pyvenn This python lib is interesting for generating visualizations if they are accurate. I used an inaccurate visualization in my presentation on OLAC roles. Maybe this could be added to django to update automatically. https://www.sciencedirect.com/topics/mathematics/venn-diagram https://www.dubberly.com/concept-maps/visualizing-venn-diagrams.htmlDjango Database options
I have been looking at Django for several projects. I've been looking at implementation details including hosting and database.
database options for Django and have settled on PostGIS as in PostgresSQL with GIS support.
https://stackoverflow.com/questions/3743632/gis-postgis-postgresql-vs-mysql-vs-sql-server
In general I have found reading through the following helpful
https://www.digitalocean.com/community/tutorials/how-to-create-a-django-app-and-connect-it-to-a-database
https://djangobuilder.io/#/
http://darrenoneill.co.uk/post/using-postgis-and-geodjango-find-nearest-neighbour/
https://medium.com/@amirm.lavasani/classic-machine-learning-in-python-k-nearest-neighbors-knn-a06fbfaaf80a
https://www.geeksforgeeks.org/find-the-nearest-node-to-a-point-using-osmnx-distance-module/
https://github.com/fabiocaccamo/django-treenode
https://github.com/peopledoc/django-ltree-demo
https://stackoverflow.com/questions/38921444/modelling-a-polymorphic-tree-with-django-treebeard
https://dev.to/pawnsapprentice/postgresql-in-geospatial-applications-unleashing-the-power-of-location-data-4jan
https://github.com/gboeing/osmnx
https://github.com/feincms/django-tree-queries
https://django-treebeard.readthedocs.io/en/stable/
Find adjacent language equals
Weight algorithm: Node edge in lang-tree = .5, overlapping GIS = .20, adjacent GIS edge = .25
Radwagon 4 Collapse
My kids and I started using our Radwagon 4 this year to commute around the Belle Mead area of New Jersey.
Often we make the trip into Princeton. Today we got our things loaded up on the bike and just as I had started the electrical assistance the front tire tore off and we crashed at the end of our long-ish driveway. To be clear our front quick release axle was tight before departure (departure on our 40 second trip). Also we are evidently not alone in this experience.
We are concerned for two reasons.
First we are sad about what happened and desperately want to know how to fix the broken parts. My son expressed it in the moment like this:
Second, we’re not entirely sure how this happened and we are concerned that it might happen again. We travel roads and there are cars on those roads so we want to be sure the equipment we use is not going to fail. Damage to our bodies included scrapes, bruises, and jarring. But the bike sustained moderate damage including a bent disc break in the front, a bent drive wheel, a broken front splash guard and scraped paint in several places including the front basket and back runners.
From what I read on the internet I see that the front axle doesn’t have “Lawyer tabs” which would prevent the axle from moving out of the forks. This seems to be a design flaw but the design around the forks is short and there isn’t really a way to add my own. A newly designed fork, like those mentioned here, would be a welcomed addition.