How to run a MicroPython script from a file on the Raspberry Pi Pico W from the command line? Updated 2025-07-26
The first/only way Ciro could find was with ampy: stackoverflow.com/questions/74150782/how-to-run-a-micropython-host-script-file-on-the-raspbery-pi-pico-from-the-host/74150783#74150783 That just worked and it worked perfectly!
pipx install adafruit-ampy
ampy --port /dev/ttyACM0 run blink.py How to show that a group is simple Updated 2025-07-16
scholarworks.sjsu.edu/cgi/viewcontent.cgi?referer=https://www.google.com/&httpsredir=1&article=5051&context=etd_theses proves that the Mathieu group is simple in just 200 pages. Nice.
How to teach Advertise your material Updated 2025-07-16
Once you have crated something awesome, you have to advertise it, otherwise no one will ever find it.
This means:
- Then ask them if they want to talk about anything.
- whenever someone asks as question on an online forum, answer it, and link to the section of your material that also answers that question.The material will answer many of their future questions.
Eventually, people will find you on the front page of Google searches, and then you will know that you've truly made something useful.
How to teach Give examples Updated 2025-07-16
Keep the example/theory ratio high, very, very high.
How to teach Use the Internet Updated 2025-07-16
How to use an Oxford Nanopore MinION to extract DNA from river water and determine which bacteria live in it Qiagen DNeasy PowerWater Kit Updated 2025-07-16
www.qiagen.com/gb/products/discovery-and-translational-research/dna-rna-purification/dna-purification/microbial-dna/dneasy-powerwater-kit (archive) Here is its documentation: www.qiagen.com/gb/resources/download.aspx?id=bb731482-874b-4241-8cf4-c15054e3a4bf&lang=en (archive).
How to use an Oxford Nanopore MinION to extract DNA from river water and determine which bacteria live in it Sample collection Updated 2025-07-16
As you would expect, not much secret here, we just dumped a 1 liter glass bottle with a rope attached around the neck in a few different locations of the river, and pulled it out with the rope.
How to view only posts by followed on Facebook feed? Updated 2025-07-16
Circa 2023, the feed is an unbearable list of stupid suggestions, never-ending idiotic memes, and you just end up missing posts you actually care about from people you actually follow.
- www.komando.com/social-media/facebook-customized-feeds/847500/
- www.quora.com/How-do-I-limit-my-news-feed-to-friends-only-on-Facebook
- www.youtube.com/watch?v=SIA8VydqiNQ OK they split their feed into multiple feeds. However on page follows www.facebook.com/?filter=pages&sk=h_chr you very quickly reach:the history doesn't go back even a few days as of November 2023! And the favorites feed www.facebook.com/?filter=favorites&sk=h_chr is more explicit on their ridiculous timing:OMG!
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Hugging Face Updated 2025-07-16
Interesting website, hosts mostly:
- datasets
- ANN models
- some live running demos called "apps": e.g. huggingface.co/spaces/ronvolutional/ai-pokemon-card
What's the point of this website vs GitHub? www.reddit.com/r/MLQuestions/comments/ylf4be/whats_the_deal_with_hugging_faces_popularity/
Human game used for AI training Updated 2025-07-16
This section is about games initially designed for humans, but which ended up being used in AI development as well, e.g.:
- board games such as chess and Go
- video games such as Minecraft or old Video game console games
Hund's rules Updated 2025-07-16
Allow us to determine with good approximation in a multi-electron atom which electron configuration have more energy. It is a bit like the Aufbau principle, but at a finer resolution.
Note that this is not trivial since there is no explicit solution to the Schrödinger equation for multi-electron atoms like there is for hydrogen.
For example, consider carbon which has electron configuration 1s2 2s2 2p2.
Hydrogen emission spectrum Updated 2025-07-16
IBM 700/7000 series Updated 2025-07-16
ImageMagick Updated 2025-07-16
Oxford Nanopore Technologies Updated 2025-07-16
They put a lot of emphasis into base calling. E.g.:
- they have used FPGAs to accelerate it on certain models: twitter.com/nanopore/status/841671404588302338, sampe engineer: www.linkedin.com/in/balaji-renganathan-31b98415/
Pageviews Analysis Updated 2025-07-16
Cool tool that allows you to graphically visualize page view counts of specific pages. It offers somewhat similar insights to Google Trends.
Homepage: pageviews.wmcloud.org/
Documentation: meta.wikimedia.org/wiki/Pageviews_Analysis#Massviews
The homepage shows views of selected pages, e.g. when Google had their 25th birthday: pageviews.wmcloud.org/?project=en.wikipedia.org&platform=all-access&agent=user&redirects=0&start=2023-09-11&end=2023-10-01&pages=Cat|Dog|Larry_Page Larry Page briefly beat "Cat" and "Dog".
/topviews shows the most viewed pages for a given month: pageviews.wmcloud.org/topviews/?project=en.wikipedia.org&platform=all-access&date=2023-08&excludes= It is extremelly epic that XXX: Return of Xander Cage, a 2017 film, is on the top ten of the August 2023 month. The page was around 8th place on a Google search for "xxx": archive.ph/wip/giRY8 at the time. XXXX (beer) was also on the top 20, followed by Sex on 21. Parameters of the Standard Model Updated 2025-07-16
The growing number of parameters of the Standard Model is one big source of worry for early 21st century physics, much like the growing number of particles was a worry in the beginning of the 20th (but that one was solved by 2020).
Paraphyletic subgroup Updated 2025-07-16
Parasites tend to have smaller DNAs Updated 2025-07-16
If you live in the relatively food abundant environment of another cell, then you don't have to be able to digest every single food source in existence, of defend against a wide range of predators.
So because DNA replication is a key limiting factor of bacterial replication time, you just reduce your genome to a minimum.
Power, Sex, Suicide by Nick Lane (2006) section "Gene loss as an evolutionary trajectory" puts it well:and also section "How to lose the cell wall without dying" page 184 has some related mentions:
One of the most extreme examples of gene loss is Rickettsia prowazekii, the cause of typhus. [...] Over evolutionary time Rickettsia has lost most of its genes, and now has a mere protein-coding genes left. [...] Rickettsia is a tiny bacterium, almost as small as a virus, which lives as a parasite inside other cells. It is so well adapted to this lifestyle that it can no longer survive outside its host cells. [...] It was able to lose most of its genes in this way simply because they were not needed: life inside other cells, if you can survive there at all, is a spoonfed existence.
While many types of bacteria do lose their cell wall during parts of their life cycle only two groups of prokaryotes have succeeded in losing their cell walls permanently, yet lived to tell the tale. It's interesting to consider the extenuating circumstances that permitted them to do so.[...]One group, the Mycoplasma, comprises mostly parasites, many of which live inside other cells. Mycoplasma cells are tiny, with very small genomes. M. genitalium, discovered in 1981, has the smallest known genome of any bacterial cell, encoding fewer than 500 genes. M. genitalium, discovered in 1981, has the smallest known genome of any bacterial cell, encoding fewer than 500 genes. [...] Like Rickettsia, Mycoplasma have lost virtually all the genes required for making nucleotides, amino acids, and so forth.
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