The 2012 Indian Ocean earthquakes

A magnitude 8.6 (Mw) undersea earthquake struck south of the Indonesian province Aceh on 11 April, 2012, at 15:38 local time, followed by a magnitude 8.2 aftershock 2 hours later. These large earthquakes were produced by horizontal slip on the undersea faults. Thanks to the lack of vertical movement of the seafloor, no tsunamis were generated.

The rich sound in this stereo track comes from a combination of 3-component seismograms recorded by all the stations of Ireland Array, recording across Ireland. The stronger main event is followed by a similarly structured sequence of waves of the main aftershock. The recording is accelerated by a factor of 9600, which increases the frequency of the signal by the same factor and brings it into the audible frequency range. The recording is then “stretched” by a factor of 80, so that the different waves can be distinguished in time and heard clearly.

Credit for Video and Article
David Stalling
https://www.soundsoftheearth.ie

https://www.soundsoftheearth.ie/indian-ocean/

#earth #tech #science #nature #education

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The 2012 Indian Ocean earthquakes A magnitude 8.6 (Mw) undersea earthquake struck south of the Indonesian province Aceh on 11 April, 2012, at 15:38 local time, followed by a magnitude 8.2 aftershock 2 hours later. These large earthquakes were produced by horizontal slip on the undersea faults. Thanks to the lack of vertical movement of the seafloor, no tsunamis were generated. The rich sound in this stereo track comes from a combination of 3-component seismograms recorded by all the stations of Ireland Array, recording across Ireland. The stronger main event is followed by a similarly structured sequence of waves of the main aftershock. The recording is accelerated by a factor of 9600, which increases the frequency of the signal by the same factor and brings it into the audible frequency range. The recording is then “stretched” by a factor of 80, so that the different waves can be distinguished in time and heard clearly. Credit for Video and Article David Stalling

Visualization of total lunar eclipse viewed from the moon.
(converted to GIF with ffmpeg)

With the lunar horizon in the foreground, the Earth passes in front of the Sun, revealing the red ring of sunrises and sunsets along the limb of the Earth. The Earth and Sun are in Virgo for observers on the Moon. The bright star above them is beta Virginis.

On September 28, 2015 Universal Time (the evening of the 27th for the Americas), the Moon enters the Earth’s shadow, creating a total lunar eclipse. When viewed from the Moon, as in this animation, the Earth hides the Sun. A red ring, the sum of all Earth’s sunrises and sunsets, lines the Earth’s limb and casts a ruddy light on the lunar landscape. With the darkness of the eclipse, the stars come out.

The city lights of North and South America and of western Europe and Africa are visible on the night side of the Earth. The part of the Earth visible in this animation is the part where the lunar eclipse can be seen.

Credits:
NASA's Scientific Visualization Studio
* Visualizer: Ernie Wright (USRA)
* Producers: David Ladd (USRA)
Michelle Handleman (USRA)
* Scientists: John Keller (NASA/GSFC)
Noah Petro (NASA/GSFC)

https://svs.gsfc.nasa.gov/4341

FYI: https://defcon.social/@grobi/114893280006806716

#space #moon #astrophotography #photography #science #astronomy #nature #NASA #ESA #education

My daughter is starting high school (USA). She's brought home 4 things I am "required" (?) to sign. 3 of them are just normal lists of classroom rules. The 4th is for gym... Ugh. It is every bad gym teacher stereotype spewed across four pages of text, with lots of all-caps, plenty of phrases like "you WILL...", "NO EXCEPTIONS", "you will be ABSOLUTELY SILENT", etc.

Most of the rules and "expectations" are pretty reasonable but the angry, accusatory tone is unhelpful, and the missed-class rules are openly punitive rather than educational.

So I wrote a note to that effect above my signature, and clarified that my signature meant I had read the document.

Kid was concerned about my annotation. I offered to tell the gym teacher I lost the document and request a new one, but kid decided to just let it ride.

Many thoughts, including

• This is how you make most students hate PE
• This is how you keep negative #stereotypes alive (I'm actually aware that Not All Gym Teachers, but this doesn't help)
• This is how you tell the kids there are two tiers of students: the athlete ingroup, who are used to this kind of communication and know this gym teacher (who is also a coach) will be sympathetic to them despite the strident tone, and everyone else, the outgroup.

This school is generally pretty good, but there are always issues, usually of exactly this kind: a subset of teachers or administrators treating all kids like criminals regardless of their behavior.

#PhysicalEducation #school #education #teenagers #parent

#education #loans #bankrupt #morals #ethics #principles #classwar #ausgov #politas #school #capitalism #fascism #oppression #repression #slavery #slave #slaves

John Dewey : l’école comme laboratoire de démocratie

Pour John Dewey, l’éducation doit être une expérience vivante de la démocratie. L’école n’est pas seulement un lieu d’apprentissage, mais un espace où l’on pratique la coopération, la participation et la citoyenneté au quotidien. #Dewey #éducation #démocratie #pédagogie John Dewey : une pédagogie démocratique pour former des citoyens John Dewey (1859-1952), philosophe et pédagogue américain, a profondément renouvelé…

https://homohortus31.wordpress.com/2025/05/29/john-dewey-lecole-comme-laboratoire-de-democratie/

The UCP blinked, but keep the pressure on! This is just a pause.

Let's be clear about one thing. When the Premier said, "No, not those books", what she meant was that her rules were meant to find and discriminate against books with queer themes, like the ones in her own "examples", and were not meant to apply to all books without discrimination. Because her target was 2SLGBTQIA+. Anything else is "my rules do not apply".

You can expect that when she "reworks" the legislation, it will be along the lines of specifying "abnormal" or "unnatural" sexual content, so as to not include cis heteronormalcy.

I did my due diligence and looked at the books she originally proposed to be banned. They were all queer-themed, and largely from Indigenous perspectives. The only thing the schools did was show that her rules apply to many classics which are considered perfectly "acceptable" by heteronormal standards, when you remove the homophobic discrimination.

And she even polled Albertans who clearly stated that educators and school librarians should make these decisions, not the government. She didn't like the result of the poll, so she simply ignored it.

Similar to the suggestion her new Citizen Initiative referendum questions should not be binding, for when the Forever Canadian question shows that Albertans wish to stay in Canada and not separate.

#abpoli #bookban #education #transrightsarehumanrights #transrights #gayrights

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BREAKING Alberta government pauses ban on school library books with sexual content Policy was set to come into effect Oct. 1 Posted: September 02, 2025 12:35 PM MDT Last Updated: 16 Minutes ago The Canadian Press Alberta Education Minister Demetrios Nicolaides says in an email to school boards that the government is pausing its order for the removal of books with explicit sexual content from libraries. More to come.

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Edmonton 'Vicious compliance': Alberta premier decries Edmonton Public Schools' banned book list More than 200 titles made list, including novels like The Handmaid's Tale Nicholas Frew · CBC News · Posted: Aug 29, 2025 12:08 PM MDT | Last Updated: August 29 Image: A person under a spotlight. Alberta Premier Danielle Smith said Friday that the Edmonton Public School Board's list of books to be taken off school shelves showed 'a little vicious compliance' to her government's directive. (Jason Franson/The Canadian Press) Alberta Premier Danielle Smith slammed the Edmonton Public School Board Friday morning for its banned book list, which features more than 200 titles. The internally distributed list, which CBC News obtained Thursday, was in response to a provincial government directive to identify books that are not age-appropriate and remove them from school library shelves. But the list included titles like The Handmaid's Tale, The Color Purple, The Godfather and Jaws. Books from authors like George R. R. Martin, Sarah J. Maas and Maya Angelou are also on the list.

Today in Labor History September 3, 1838: Frederick Douglass escaped from slavery in Baltimore, Maryland to freedom in the north, where he became a leader of the abolitionist movement. During his lifetime, he wrote 3 autobiographies and became a best-selling author. He also fought for women’s suffrage and was the first black man nominated to run for vice president. Douglass opposed colonialism and segregated schools. He was the most photographed American of the 19th century, never smiling once for the camera so as to not play into the racist myth of the happy slave.

#workingclass #LaborHistory #slavery #Abolition #frederickdouglass #feminism #segregation #education #colonialism #author #writer #biography #books #BlackMastadon @bookstadon

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Douglass in 1879, with gray hair and beard. By George Kendall Warren - This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing., Public Domain, https://commons.wikimedia.org/w/index.php?curid=1044449

I doubt you'll be surprised that amid a difficult transition between primary & secondary school, working class children & those from ethnic minorities are often more adversely effected than the majority population.

Perhaps the most obvious difference is related to how success is judged with secondary schools emphasising results over self-development.

Unless we sort this out generations of children will continue to have a torrid time at secondary school.

#education
https://theconversation.com/research-shows-english-childrens-wellbeing-drops-when-they-start-secondary-school-heres-why-260737

"Some kind of redesign of educational practice might be required, which is easy for me to say in an article. Instead of an answer, I have an approach to thinking about the answer that has been bouncing around in my brain. Are you familiar with the concept in software development called technical debt? In the software world, you make the decision about how to design or implement a system that feels good and right at the time. And maybe you know it’s going to be a bad idea in the long run, but for now, it makes sense and it is convenient. But you never get around to really making it better later on, and so you have all these nonoptimal aspects of your infrastructure.

That’s the state I feel like we’re in, at least in the university. It’s a little different in high school, especially in public high school, with these different regulatory regimes at work. But we accrued all this pedagogical debt, and not just since AI—there are aspects of teaching that we ought to be paying more attention to or doing better, like, this class needs to be smaller, or these kinds of assignments don’t work unless you have a lot of hands-on iterative feedback. We’ve been able to survive under the weight of pedagogical debt, and now something snapped. AI entered the scene and all of those bad or questionable—but understandable—decisions about how to design learning experiences are coming home to roost."

https://www.theatlantic.com/newsletters/archive/2025/08/ai-high-school-college/684057/

#AI #GenerativeAI #LLMs #Chatbots #University #HigherEd #College #Education #Academia #CriticalThinking

I’d not heard of “special assistance schools” before.

I loved my primary school classrooms, the learning, the knowledge & passion of my teachers who I got to know well because they taught every subject, and where the rules of engagement were clear.

The playground? In my early years, it was a scary, overwhelming, foreign place, where there seemed to be no structure, and the rules kept changing. I got better at negotiating this space, even participating clumsily in some lunchtime games due to my need to burn off energy, (ADHD) even though my ball game skills were dismal. But cruel bullying still happened from time to time.

And yes, I had days off when I wasn’t sick. Not many. My mother wouldn’t have stood for it and I was clearly not debilitated enough by the thought of school to outright refuse. But I had them.

#Actuallyautistic
#Neurodivergence
#Schools
#Education

https://www.abc.net.au/news/2025-09-02/neurodivergent-students-exit-mainstream-schools/105351536?utm_source=abc_news_app&utm_medium=content_shared&utm_campaign=abc_news_app&utm_content=other