Aris Dacanalis
@arisd.bsky.social
Antikythera Mechanism researcher. PhD student at UCL. Teacher of Physics and Astronomy.
Reposted by Aris Dacanalis
Do you have a steady hand and an eye for detail? We're looking for volunteers to help us with our conservation work! This is an exciting opportunity to help us look after the past for generations to come.
If you're interested, get in touch at archives@buckinghamshire.gov.uk
If you're interested, get in touch at archives@buckinghamshire.gov.uk
November 18, 2025 at 7:01 PM
Do you have a steady hand and an eye for detail? We're looking for volunteers to help us with our conservation work! This is an exciting opportunity to help us look after the past for generations to come.
If you're interested, get in touch at archives@buckinghamshire.gov.uk
If you're interested, get in touch at archives@buckinghamshire.gov.uk
Reposted by Aris Dacanalis
I’ve written a piece on the curious lack of media and political interest in the issues faced by our national @britishlibrary.bsky.social. This is strange given we live in a world where ideas, knowledge and research are a long-term source of innovation and insight
www.cityam.com/the-british-...
www.cityam.com/the-british-...
The British library is in crisis: why does nobody care?
The widespread indifference to the British Library's crippling cyberattack demonstrates a perilous failure to value the knowledge infrastructure vital for national prosperity
www.cityam.com
November 18, 2025 at 6:27 AM
I’ve written a piece on the curious lack of media and political interest in the issues faced by our national @britishlibrary.bsky.social. This is strange given we live in a world where ideas, knowledge and research are a long-term source of innovation and insight
www.cityam.com/the-british-...
www.cityam.com/the-british-...
Reposted by Aris Dacanalis
periodic reminder of the existence of Atkinson Hyperlegible, a free font available from the Braille Institute designed to improve readability for people with low vision
I use it in talks because it's pretty and also because, as an audience member, I am perpetually squinting at people's slides
I use it in talks because it's pretty and also because, as an audience member, I am perpetually squinting at people's slides
Atkinson Hyperlegible Font - Braille Institute
Read easier with Atkinson Hyperlegible Font, crafted for low-vision readers. Download for free and enjoy clear letters and numbers on your computer!
www.brailleinstitute.org
November 17, 2025 at 4:19 AM
periodic reminder of the existence of Atkinson Hyperlegible, a free font available from the Braille Institute designed to improve readability for people with low vision
I use it in talks because it's pretty and also because, as an audience member, I am perpetually squinting at people's slides
I use it in talks because it's pretty and also because, as an audience member, I am perpetually squinting at people's slides
But why? How does the O2 concentration affect the wavelength? Whats the Physics?
Aurora color guide! What creates the different shades?
Different atoms getting "excited" at different altitudes
The bright reds are a sign of a particularly intense event
Different atoms getting "excited" at different altitudes
The bright reds are a sign of a particularly intense event
November 13, 2025 at 9:59 AM
But why? How does the O2 concentration affect the wavelength? Whats the Physics?
Reposted by Aris Dacanalis
Aurora color guide! What creates the different shades?
Different atoms getting "excited" at different altitudes
The bright reds are a sign of a particularly intense event
Different atoms getting "excited" at different altitudes
The bright reds are a sign of a particularly intense event
November 12, 2025 at 3:34 AM
Aurora color guide! What creates the different shades?
Different atoms getting "excited" at different altitudes
The bright reds are a sign of a particularly intense event
Different atoms getting "excited" at different altitudes
The bright reds are a sign of a particularly intense event
Reposted by Aris Dacanalis
Academics in Assyria in the 7th c BC complain that admin is preventing them from doing research and teaching
November 3, 2025 at 10:04 AM
Academics in Assyria in the 7th c BC complain that admin is preventing them from doing research and teaching
Reposted by Aris Dacanalis
Fellow parents! Carers! Anyone looking after children over half-term! Here is a thread of videos showing TOYS you can MAKE at home from scrap stuff you probably have lying around. First, the utterly delightful "balancing bird" alomshaha.com/balancing-bi...
October 19, 2024 at 8:52 AM
Fellow parents! Carers! Anyone looking after children over half-term! Here is a thread of videos showing TOYS you can MAKE at home from scrap stuff you probably have lying around. First, the utterly delightful "balancing bird" alomshaha.com/balancing-bi...
Reposted by Aris Dacanalis
every sports team is a Ship of Theseus
October 25, 2025 at 9:16 PM
every sports team is a Ship of Theseus
Amazing how setting up your #microsoft authenticator account with an organisation requires logging in with your org. credentials, followed by… two-factor authentication using… you guessed it: the authenticator account which you are trying to set up in the first place. Catch-22. *slow clapping*
October 16, 2025 at 7:58 AM
Amazing how setting up your #microsoft authenticator account with an organisation requires logging in with your org. credentials, followed by… two-factor authentication using… you guessed it: the authenticator account which you are trying to set up in the first place. Catch-22. *slow clapping*
Reposted by Aris Dacanalis
If you don’t teach your students your subject, you’re not doing your job.
If you teach your students to ask AI first, you’re ensuring they’ll never be *needed* for any job.
You’re also guaranteeing that knowledge of your subject slowly dies.
Asking ChatGPT is gaining neither knowledge nor skills.
If you teach your students to ask AI first, you’re ensuring they’ll never be *needed* for any job.
You’re also guaranteeing that knowledge of your subject slowly dies.
Asking ChatGPT is gaining neither knowledge nor skills.
If you don’t teach your students how to use AI, you’re doing them a huge disservice because they won’t have jobs in the future.
September 28, 2025 at 12:51 PM
If you don’t teach your students your subject, you’re not doing your job.
If you teach your students to ask AI first, you’re ensuring they’ll never be *needed* for any job.
You’re also guaranteeing that knowledge of your subject slowly dies.
Asking ChatGPT is gaining neither knowledge nor skills.
If you teach your students to ask AI first, you’re ensuring they’ll never be *needed* for any job.
You’re also guaranteeing that knowledge of your subject slowly dies.
Asking ChatGPT is gaining neither knowledge nor skills.
Reposted by Aris Dacanalis
1/ A longtime Wired editor just wrote a mush-brained essay about how he totally missed the political rot of Silicon Valley (& still doesn't get it).
But in the late 1990s, a Wired journalist warned of a toxic ideology bubbling up from tech. Paulina Borsook has largely been erased. Let's change that
But in the late 1990s, a Wired journalist warned of a toxic ideology bubbling up from tech. Paulina Borsook has largely been erased. Let's change that
September 24, 2025 at 6:36 PM
1/ A longtime Wired editor just wrote a mush-brained essay about how he totally missed the political rot of Silicon Valley (& still doesn't get it).
But in the late 1990s, a Wired journalist warned of a toxic ideology bubbling up from tech. Paulina Borsook has largely been erased. Let's change that
But in the late 1990s, a Wired journalist warned of a toxic ideology bubbling up from tech. Paulina Borsook has largely been erased. Let's change that
Reposted by Aris Dacanalis
Cecilia Payne-Gaposchkin ✨ figured out what stars are made of ✨ when she was just 25. 🔭🧪
Her PhD thesis basically established the Harvard astro department — at a time when Harvard didn't officially allow woman students.
I wrote this little profile to mark the 100th anniversary of her thesis:
Her PhD thesis basically established the Harvard astro department — at a time when Harvard didn't officially allow woman students.
I wrote this little profile to mark the 100th anniversary of her thesis:
September 24, 2025 at 9:14 AM
Cecilia Payne-Gaposchkin ✨ figured out what stars are made of ✨ when she was just 25. 🔭🧪
Her PhD thesis basically established the Harvard astro department — at a time when Harvard didn't officially allow woman students.
I wrote this little profile to mark the 100th anniversary of her thesis:
Her PhD thesis basically established the Harvard astro department — at a time when Harvard didn't officially allow woman students.
I wrote this little profile to mark the 100th anniversary of her thesis:
Reposted by Aris Dacanalis
Top #Equinox fact: Today is the day that the Sun rises due East and sets due West.
At the December solstice the sun rises in the South East. At the June solstice it rises in the North East. As the days pass between the two, the sunrise position slowly changes passing due East each equinox.👇🤩 🔭🧪
At the December solstice the sun rises in the South East. At the June solstice it rises in the North East. As the days pass between the two, the sunrise position slowly changes passing due East each equinox.👇🤩 🔭🧪
The sun’s movement from day to day along your horizon is most noticeable around the equinoxes. So on this #equinox, start tracking the sunset point on your western horizon. You'll see a mighty shift between now and the December solstice. 🔭 Read more at: buff.ly/oSkJsGb
📸 Rupesh Sangoi.
📸 Rupesh Sangoi.
September 22, 2025 at 5:28 PM
Top #Equinox fact: Today is the day that the Sun rises due East and sets due West.
At the December solstice the sun rises in the South East. At the June solstice it rises in the North East. As the days pass between the two, the sunrise position slowly changes passing due East each equinox.👇🤩 🔭🧪
At the December solstice the sun rises in the South East. At the June solstice it rises in the North East. As the days pass between the two, the sunrise position slowly changes passing due East each equinox.👇🤩 🔭🧪
Reposted by Aris Dacanalis
Dear @ukri.org,
I think JJ Thomson nailed the perils of having Government agencies use “clear eyes” to decide where to focus research funding to maximise benefit to society. 🧪
(www.researchprofessionalnews.com/rr-news-uk-v...)
I think JJ Thomson nailed the perils of having Government agencies use “clear eyes” to decide where to focus research funding to maximise benefit to society. 🧪
(www.researchprofessionalnews.com/rr-news-uk-v...)
September 17, 2025 at 11:10 AM
Dear @ukri.org,
I think JJ Thomson nailed the perils of having Government agencies use “clear eyes” to decide where to focus research funding to maximise benefit to society. 🧪
(www.researchprofessionalnews.com/rr-news-uk-v...)
I think JJ Thomson nailed the perils of having Government agencies use “clear eyes” to decide where to focus research funding to maximise benefit to society. 🧪
(www.researchprofessionalnews.com/rr-news-uk-v...)
Reposted by Aris Dacanalis
Spot the difference: John the Baptist from the Hours of Joanna I of Castile and our Community Engagement Officer remembering how many emails he has to respond to
September 15, 2025 at 3:14 PM
Spot the difference: John the Baptist from the Hours of Joanna I of Castile and our Community Engagement Officer remembering how many emails he has to respond to
Reposted by Aris Dacanalis
How does lava sound when it comes to the surface of the Earth? Listen to a lava flow oozing out of its effusive vent high on the southwestern side of #Etna, 28 August 2025. That day no visits by tourists were allowed on the site, which permitted this (relatively) clean recording
August 30, 2025 at 5:46 PM
How does lava sound when it comes to the surface of the Earth? Listen to a lava flow oozing out of its effusive vent high on the southwestern side of #Etna, 28 August 2025. That day no visits by tourists were allowed on the site, which permitted this (relatively) clean recording
Reposted by Aris Dacanalis
A very hungry planet! 🪐
What appears to be a ripple in space is actually a newborn planet, eating its way through its dusty cradle around a younger version of our Sun 🌞
Read more: https://www.eso.org/public/images/potw2534a/
🔭 🧪 #exoplanets
📷 ESO/R. van Capelleveen et al.
What appears to be a ripple in space is actually a newborn planet, eating its way through its dusty cradle around a younger version of our Sun 🌞
Read more: https://www.eso.org/public/images/potw2534a/
🔭 🧪 #exoplanets
📷 ESO/R. van Capelleveen et al.
August 26, 2025 at 10:02 AM
A very hungry planet! 🪐
What appears to be a ripple in space is actually a newborn planet, eating its way through its dusty cradle around a younger version of our Sun 🌞
Read more: https://www.eso.org/public/images/potw2534a/
🔭 🧪 #exoplanets
📷 ESO/R. van Capelleveen et al.
What appears to be a ripple in space is actually a newborn planet, eating its way through its dusty cradle around a younger version of our Sun 🌞
Read more: https://www.eso.org/public/images/potw2534a/
🔭 🧪 #exoplanets
📷 ESO/R. van Capelleveen et al.
Reposted by Aris Dacanalis
This is one of the most beautiful things I have witnessed, the craft here is impeccable.
August 13, 2025 at 6:06 AM
This is one of the most beautiful things I have witnessed, the craft here is impeccable.
Reposted by Aris Dacanalis
Delightful story about a 17-year-old homeschooler who disproved the 40-year-old Mizohata-Takeuchi conjecture. She decided to apply straight to graduate school, skipping the rest of high school and college. When she finishes, a PhD will be her first degree.
At 17, Hannah Cairo Solved a Major Math Mystery | Quanta Magazine
After finding the homeschooling life confining, the teen petitioned her way into a graduate class at Berkeley, where she ended up disproving a 40-year-old conjecture.
www.quantamagazine.org
August 2, 2025 at 1:01 AM
Delightful story about a 17-year-old homeschooler who disproved the 40-year-old Mizohata-Takeuchi conjecture. She decided to apply straight to graduate school, skipping the rest of high school and college. When she finishes, a PhD will be her first degree.
Reposted by Aris Dacanalis
Honestly, this 8.8-mag quake and tsunami seems a fabulous demonstration of the capabilities that the US, Japan, and others have marshalled to protect their citizens.
This doesn't just exist. It has to be built and maintained.
This doesn't just exist. It has to be built and maintained.
July 30, 2025 at 11:01 AM
Honestly, this 8.8-mag quake and tsunami seems a fabulous demonstration of the capabilities that the US, Japan, and others have marshalled to protect their citizens.
This doesn't just exist. It has to be built and maintained.
This doesn't just exist. It has to be built and maintained.
Reposted by Aris Dacanalis
I see grocery/takeout shaming discourse going around again, so this is your periodic historian reminder that cooking from scratch daily while working has never been sustainable, and for millennia everyone either relied on takeout & restaurants or ate in huge households w/ big dorm-like group dining.
July 25, 2025 at 10:40 PM
I see grocery/takeout shaming discourse going around again, so this is your periodic historian reminder that cooking from scratch daily while working has never been sustainable, and for millennia everyone either relied on takeout & restaurants or ate in huge households w/ big dorm-like group dining.
Will it be enough to stop the predictable clickbait antics about a SN every time it dims, precisely like it has done for the last few decades ? My gut feeling says no…
The presence of a binary companion might explain why Betelgeuse seems to dim on six-year timescales (in addition to a 400-day cycle of variability), and could explain why other red supergiants seem to be similarly variable.
Read more:
noirlab.edu/public/news/...
Read more:
noirlab.edu/public/news/...
July 22, 2025 at 5:40 AM
Will it be enough to stop the predictable clickbait antics about a SN every time it dims, precisely like it has done for the last few decades ? My gut feeling says no…
Reposted by Aris Dacanalis
An excellent opportunity to join the curatorial team at the Science Museum has come up! Please spread the word.
🌍Curator of Climate & Earth Sciences
⚗️Part of the excellent Team Science in London Curatorial
⌛ Permanent, Full-Time
💲 £41k p/a
bit.ly/4m3uQFp
🌍Curator of Climate & Earth Sciences
⚗️Part of the excellent Team Science in London Curatorial
⌛ Permanent, Full-Time
💲 £41k p/a
bit.ly/4m3uQFp
Powered by MHR
bit.ly
July 21, 2025 at 10:59 AM
An excellent opportunity to join the curatorial team at the Science Museum has come up! Please spread the word.
🌍Curator of Climate & Earth Sciences
⚗️Part of the excellent Team Science in London Curatorial
⌛ Permanent, Full-Time
💲 £41k p/a
bit.ly/4m3uQFp
🌍Curator of Climate & Earth Sciences
⚗️Part of the excellent Team Science in London Curatorial
⌛ Permanent, Full-Time
💲 £41k p/a
bit.ly/4m3uQFp
Reposted by Aris Dacanalis
Our final updates have been posted to the Climate.gov website, and this will be our final post to our social media channels.
June 27, 2025 at 9:00 PM
Our final updates have been posted to the Climate.gov website, and this will be our final post to our social media channels.
Reposted by Aris Dacanalis
🔭 APOD is 30 Years Old Today
Image Credit: Pixelization of Van Gogh's The Starry Night by Dario Giannobile
apod.nasa.gov/apod/ap25061...
Image Credit: Pixelization of Van Gogh's The Starry Night by Dario Giannobile
apod.nasa.gov/apod/ap25061...
June 16, 2025 at 8:00 AM
🔭 APOD is 30 Years Old Today
Image Credit: Pixelization of Van Gogh's The Starry Night by Dario Giannobile
apod.nasa.gov/apod/ap25061...
Image Credit: Pixelization of Van Gogh's The Starry Night by Dario Giannobile
apod.nasa.gov/apod/ap25061...