Roses are redde
Noble are the manatees
For a bettir future
Teach artes and humanityes
@astrolabecat.bsky.social
Mathematics lecturer at a technical university in the Netherlands. Researcher of Mathematics Education. Lover of books, cats, pottery, maths, astronomy. SCA medieval reenactor. π³π± π¬π§ πΏπ¦ Profile pic: my cat Willow, of blessed memory
Roses are redde
Noble are the manatees
For a bettir future
Teach artes and humanityes
From our editor-in-chief: everything you ever wondered about Classroom Notes.
Full article: Classroom Notes www.tandfonline.com/doi/full/10....
My first ever job was at a supermarket. I worked with an older gentlemen who mustβve been in his late 70s and while I canβt name the supermarket due to an ongoing legal dispute the guy must be dead by now so Iβll just use his real name: Barnaby.
22.12.2025 07:08 β π 24 π 11 π¬ 4 π 9
A book from the 19th century that depicts the Rhine Valley by creating an impression of three-dimensionality and spatial distance.
@MasayukiTsuda2 #globalmuseum #books #travel #19thcentury
Pillars of Creation but with googly eyes and printed on a 1000-piece puzzle. Don't ask.
Today is the last day to order my #puzzles, so I'm sharing this monstrocity again π€£
Yip yipp yippp!
Pillars of Googly Eyes available as 1000-piece puzzle π§©
π sciencesocks.co/pages/puzzle...
ππ‘π§ͺπ¨ #ArtAdventCalendar
Gracefully carving through the solar corona, a mini eruption of filament plasma erupted from the Sun earlier today! Beautiful.
04.12.2025 00:35 β π 199 π 66 π¬ 6 π 8Voyager 1 artistβs depiction.
in case you didnβt know, in a year voyager 1 will be 1 light-DAY away from earth.
it took almost 50 YEARS of travel time to reach that distance and will be the first human-made object to reach this distance.
I have donated to this fundraiser to send a South African opera singer to Hochschule fΓΌr Musik und Tanz KΓΆln. He won a prestigious chance to attend, but cannot afford travel & accommodation. Please consider contributing.
whydonate.com/fundraising/...
#opera #southafrica #kimberley #cologne #music
πMARTHINUS VAN STADEN: The cancer killing SA universities. Parasitic industries drain resources, but something far more sinister is at work on campuses. www.businesslive.co.za/bd/opinion/2...
18.08.2025 04:41 β π 5 π 1 π¬ 2 π 0Capetonians march in solidarity with media workers targeted and killed in Gaza. βEvery colonial project survives on two weapons: physical extermination of the colonised people and control of the narrative. The power to erase, distort and rewrite reality.β www.dailymaverick.co.za/article/2025...
18.08.2025 04:55 β π 5 π 1 π¬ 0 π 0
Beyond excited that my study of the medieval 'Dane saga' of Breda is finally out (OA π) alongside a first English translation! This anachronistic oddity of devotional/literary storytelling posits how a group of 'vikings' arrived and troubled the city for years.
www.brepolsonline.net/doi/epdf/10....
With Tom Lehrer's passing, I suppose this is a moment to share the story of the prank he played on the National Security Agency, and how it went undiscovered for nearly 60 years.
27.07.2025 21:01 β π 8662 π 3616 π¬ 143 π 717A man wrapped up against the cold, surveys a frozen plain
The secret German weather station on the Arctic island of Svalbard. Part of the 'Weather War'.
The team, led by Lieutenant Wilhelm Dege, were the last German troops to surrender in WW2, finally doing so FOUR MONTHS after Germany had officially surrendered.
It was not for want of trying. /1
A square arrangement of 9 individual biscuit tiles painted in rich shades of blue and made to look old, chipped, and cracked. On the top row, there is: a ship with billowing sails approaching a dock with two stylized ducks or geese in the foreground; a delicate flower motif in the centre of a bright white tile with deep blue detail at each corner; a cracked tile depicting two figures in rustic historical dress looking out to sea, accompanied by a small dog. The middle row features: a roughly painted castle surrounded by an octagonal frame; an intricate floral arrangement with an angel at each of the tileβs four corners; a cluster of rustic buildings with boat sails and a flock of birds in the distance. Finally, the bottom row of biscuits includes: a figure fishing in the foreground of a multi-storey round tower; a woman wearing a flowing eighteenth-century gown, encircled by a deep blue floral pattern; a small vase of flowers in the centre of an aged white biscuit.
Delftware tiles!
There were hundreds of fabulous examples to choose from in the Victoria & Albert Museumβs online catalogue, but I eventually settled on nine.
These 18th-century ships, shepherds, castles, figures, and flowers brought me joy. I hope theyβll do the same for you, too.
#TudorTuesday
Manβs Cloak
1580-1590
Spain
Italian velvet
Silk velvet with applied border of silk satin, couched with silk cord
www.instagram.com/p/DKI9M7pNpn...
#Cloak #MansCloak #GentlemansCloak #SilkVelvet #Velvet #Clothing #ItalianVelvet #Spain #History
Trump Makes False Genocide Claims. South Africans Respond With Humor. www.nytimes.com/2025/05/22/w...
23.05.2025 05:27 β π 3 π 3 π¬ 0 π 0
Life sucks. Laugh at these baby names instead
www.buzzfeed.com/kristatorres...
But are these various educational interventions worth burning the planet so that tech CEOs can get more wealthy?
That being said, I still feel pressured to use these tools somehow. People won't stop yelling at me (however metaphorically) until I do so. And that makes me unhappy.
(8/8)
I know the team and have huge respect for them. www.utwente.nl/nl/tnw/nieuw...
(7/8)
3) educational. Yes, this is only point 3. I have seen very few examples of using "AI" in a way that helps students learn in ways that are not already achievable by other means. The one that recently won the Brinksma Innovation Grant at my University of Twente is an exception.
(6/8)
2) sociopolitical. I loathe the idea of putting more money in billionaires' pockets. If these LLM companies were mom and pop businesses or young entrepreneur start ups, then that would be one thing, but they're not. www.forbes.com/sites/phoebe... #billionairesshouldnotexist
(5/8)
... uses 5-10 times as much energy and water resources as a browser search. www.unep.org/news-and-sto..., news.mit.edu/2025/explain...
(4/8)
1) environmental. Casual use of LLMs (because, let's be clear, my colleagues using AI in medical imaging and the like are using serious AI, not chatGPT) is really, really bad for the environment. For example, two reports here say that using chatGPT for what amounts to an online search ...
(3/8)
As time goes on and I become more familiar with the options and possibilities, I become increasingly reluctant to follow this advice.
My reasons for not wanting to use AI in my teaching or in my education research are:
(2/8)
I feel crowded by people and communities insisting, with varying levels of urgency, that I employ "AI for education" in my classrooms and that I use it as a context for my maths education research. It is presented as an opportunity, a valuable tool, an unproblematic Good.
(1/8)
Itβs Mary Anningβs birthday, so time to share @katebeaton.bsky.socialβs brilliant cartoon again.
21.05.2025 11:31 β π 18607 π 4531 π¬ 73 π 91
Open this photo up and look for the small, white dot just left of centre.
It looks like Venus, shining brightly in the twilight sky.
But it's us.
It's Earth.
From Mars.
Gorgeous!
10.05.2025 05:30 β π 1 π 0 π¬ 0 π 0Annie Jump Cannon sat at a desk. She is clearly not a fan of a clear desk policy as it's messy with papers and open drawers. She is a white woman with pale hair.
#OnThisDay, 9 May 1922, the International Astronomical Union formally adopts Annie Jump Cannon's stellar classification system. The principles in it still underpin modern classification.
#WomenInHistory #OTD #History #WomensHistory #Astronomy #WomenInSTEM #AmericanHistory ποΈ
Oh, this?
Just sunlight reflecting off a lake.
A lake of liquid methane.
On an icy world 1.4 billion kilometres away.