Don De Tina
@donnyd.bsky.social
MD. Work-retired. Neurodivergent. Life hobbyist.
Grateful husband to MaryLou and dad to Greg & Alicia.
Alicia died by suicide in 2014, at age 27💔. Grief is love.
(search my feed with #🔖 for my bookmarks)
📍Hamilton, Canada
Grateful husband to MaryLou and dad to Greg & Alicia.
Alicia died by suicide in 2014, at age 27💔. Grief is love.
(search my feed with #🔖 for my bookmarks)
📍Hamilton, Canada
Finally got around to posting the code to my Rose of Venus sketch. openprocessing.org/sketch/2809163
Rose of Venus - Don De Tina - OpenProcessing
curve idealizing line drawn between the positions of earth & venus
openprocessing.org
November 27, 2025 at 3:34 PM
Finally got around to posting the code to my Rose of Venus sketch. openprocessing.org/sketch/2809163
Free tears here.
"His car broke down on Thanksgiving 1980 and he entered an empty house. Then the occupants came home" |CNN www.cnn.com/travel/car-b...
"His car broke down on Thanksgiving 1980 and he entered an empty house. Then the occupants came home" |CNN www.cnn.com/travel/car-b...
His car broke down on Thanksgiving 1980 and he entered an empty house. Then the occupants came home | CNN
When John Morris’ car skidded off the road in a blizzard, he had to think on his feet. It turned into a Thanksgiving he’d never forget.
www.cnn.com
November 26, 2025 at 1:56 PM
Free tears here.
"His car broke down on Thanksgiving 1980 and he entered an empty house. Then the occupants came home" |CNN www.cnn.com/travel/car-b...
"His car broke down on Thanksgiving 1980 and he entered an empty house. Then the occupants came home" |CNN www.cnn.com/travel/car-b...
A great local story, and a fabulous way to inaugurate the newly-renovated Hamilton TD Coliseum. "Ontario musicians play on stage with Sir Paul McCartney" | CTV News
www.ctvnews.ca/kitchener/ar...
www.ctvnews.ca/kitchener/ar...
Ontario musicians play on stage with Sir Paul McCartney
Musicians from southern Ontario had a rare opportunity to share the stage with a living legend.
www.ctvnews.ca
November 25, 2025 at 7:13 PM
A great local story, and a fabulous way to inaugurate the newly-renovated Hamilton TD Coliseum. "Ontario musicians play on stage with Sir Paul McCartney" | CTV News
www.ctvnews.ca/kitchener/ar...
www.ctvnews.ca/kitchener/ar...
Reposted by Don De Tina
Gender-affirming care saves lives
1. A landmark study was just published in The Journal of Pediatrics.
It found a 68% reduction in suicidality for trans youth getting HRT.
It also found only 7 of more than 400 stopped taking HRT... and of those that did, 4 still identified as gender-diverse.
Transgender care saves lives.
It found a 68% reduction in suicidality for trans youth getting HRT.
It also found only 7 of more than 400 stopped taking HRT... and of those that did, 4 still identified as gender-diverse.
Transgender care saves lives.
Study In The Journal Of Pediatrics Finds Trans Youth Care Lowers Suicidality, Few Detransition
The groundbreaking study found that suicidality dropped for transgender youth receiving hormone therapy by nearly 70%, with only 7 patients of 432 discontinuing treatment.
www.erininthemorning.com
November 25, 2025 at 11:49 AM
Gender-affirming care saves lives
Reposted by Don De Tina
Think of steel as flour for the manufacturing economy. A tariff is like a flour tax: the mill might add 1,000 jobs, but factories using flour cut around 75,000. That’s what happens when you tax an input instead of solving the real problem.
November 22, 2025 at 10:56 PM
Think of steel as flour for the manufacturing economy. A tariff is like a flour tax: the mill might add 1,000 jobs, but factories using flour cut around 75,000. That’s what happens when you tax an input instead of solving the real problem.
Reposted by Don De Tina
MY NAME IS
SHAKE ZULA
THE MIC RULAH, THE OLD SCHOOLAH
YOU WANNA TRIP, I’LL BRING IT TO YA
SHAKE ZULA
THE MIC RULAH, THE OLD SCHOOLAH
YOU WANNA TRIP, I’LL BRING IT TO YA
November 22, 2025 at 11:35 PM
MY NAME IS
SHAKE ZULA
THE MIC RULAH, THE OLD SCHOOLAH
YOU WANNA TRIP, I’LL BRING IT TO YA
SHAKE ZULA
THE MIC RULAH, THE OLD SCHOOLAH
YOU WANNA TRIP, I’LL BRING IT TO YA
Reposted by Don De Tina
Wow it's not much but it's p5.strands working!
baseMaterialShader().modify(() => {
const time = uniformFloat(() => millis())
p.getWorldInputs((inputs) => {
inputs.position.y += 40 * sin(time * 0.005);
return inputs;
});
})
baseMaterialShader().modify(() => {
const time = uniformFloat(() => millis())
p.getWorldInputs((inputs) => {
inputs.position.y += 40 * sin(time * 0.005);
return inputs;
});
})
November 23, 2025 at 12:31 AM
Wow it's not much but it's p5.strands working!
baseMaterialShader().modify(() => {
const time = uniformFloat(() => millis())
p.getWorldInputs((inputs) => {
inputs.position.y += 40 * sin(time * 0.005);
return inputs;
});
})
baseMaterialShader().modify(() => {
const time = uniformFloat(() => millis())
p.getWorldInputs((inputs) => {
inputs.position.y += 40 * sin(time * 0.005);
return inputs;
});
})
Reposted by Don De Tina
"For more than a decade, Catholic nuns and clergy members visited the Broadview facility every Friday ... The coalition included Sister JoAnn Persch, who regularly visited the facility until her death last week at 91." www.nytimes.com/2025/11/20/u...
Catholic Group Sues Trump Administration for Access to Immigration Facility
www.nytimes.com
November 20, 2025 at 2:26 PM
"For more than a decade, Catholic nuns and clergy members visited the Broadview facility every Friday ... The coalition included Sister JoAnn Persch, who regularly visited the facility until her death last week at 91." www.nytimes.com/2025/11/20/u...
This is too much.
Fun non-spoilery Pluribus detail - this is actually the mayor of Albuquerque
November 22, 2025 at 6:03 AM
This is too much.
Reposted by Don De Tina
Reposted by Don De Tina
A huge, beautiful library of tessellated materials in biology!
tessellated-materials.mpikg.mpg.de/collection
And an interview in Science with the creators of this library:
www.science.org/content/arti...
tessellated-materials.mpikg.mpg.de/collection
And an interview in Science with the creators of this library:
www.science.org/content/arti...
HU
tessellated-materials.mpikg.mpg.de
November 21, 2025 at 3:59 AM
A huge, beautiful library of tessellated materials in biology!
tessellated-materials.mpikg.mpg.de/collection
And an interview in Science with the creators of this library:
www.science.org/content/arti...
tessellated-materials.mpikg.mpg.de/collection
And an interview in Science with the creators of this library:
www.science.org/content/arti...
Good to see. Shopify-made billionaire Bruce McKean has made many donations to advance mental health. The latest is to research early diagnosis and treatment in children via precision medicine. Many, like my daughter, don't respond to standard treatment. Hope for them. www.newswire.ca/news-release...
$35 million gift advances precision mental health care at CHEO and SickKids to predict better, diagnose faster and treat smarter
/CNW/ - With 1.2 million Canadian children and youth affected by mental illness and emergency room visits up more than 60 per cent, the need for bold,...
www.newswire.ca
November 20, 2025 at 10:31 PM
Good to see. Shopify-made billionaire Bruce McKean has made many donations to advance mental health. The latest is to research early diagnosis and treatment in children via precision medicine. Many, like my daughter, don't respond to standard treatment. Hope for them. www.newswire.ca/news-release...
Reposted by Don De Tina
Radiolaria are microscopic unicellular sea creatures that create skeletons from silica. Their skeletons are among the most beautiful and complex natural microstructures, resembling elaborate filigree. blog post: n-e-r-v-o-u-s.com/blog/?p=9861
November 20, 2025 at 5:16 PM
Radiolaria are microscopic unicellular sea creatures that create skeletons from silica. Their skeletons are among the most beautiful and complex natural microstructures, resembling elaborate filigree. blog post: n-e-r-v-o-u-s.com/blog/?p=9861
Reposted by Don De Tina
5-stars were commonly used on the ceilings of tombs and other buildings in Ancient Egypt to depict the heavens. They are usually not connected to one another, but they are connected in this ceiling in the Ptolemaic Denderah Temple to form a sort of tessellation of hexagons and quadrilaterals.
November 20, 2025 at 1:30 PM
5-stars were commonly used on the ceilings of tombs and other buildings in Ancient Egypt to depict the heavens. They are usually not connected to one another, but they are connected in this ceiling in the Ptolemaic Denderah Temple to form a sort of tessellation of hexagons and quadrilaterals.
wip: 'Rose of Venus' curve via p5js. If you drew lines between the positions of Earth and Venus, after a while, the curve would look something like this. Earth orbits the sun about 8 times, for every 13 orbits of Venus.
November 19, 2025 at 5:02 PM
wip: 'Rose of Venus' curve via p5js. If you drew lines between the positions of Earth and Venus, after a while, the curve would look something like this. Earth orbits the sun about 8 times, for every 13 orbits of Venus.
Reposted by Don De Tina
I hope like hell that Epstein's victims are the "Women of the Year" @TIME for 2025.
November 18, 2025 at 9:10 PM
I hope like hell that Epstein's victims are the "Women of the Year" @TIME for 2025.
Walked to Felker’s Falls with my brother, sister and in-laws. Down to a trickle, but easy to see this time of year.
November 18, 2025 at 9:17 PM
Walked to Felker’s Falls with my brother, sister and in-laws. Down to a trickle, but easy to see this time of year.
having some fun with my daily chore of cleaning reusable coffee pods
November 17, 2025 at 2:44 PM
having some fun with my daily chore of cleaning reusable coffee pods
Reposted by Don De Tina
This talk was given on September 12 in the New York Combinatorics Seminar. Here's a link to the recording. youtu.be/BX6VkFHwn-g?...
November 17, 2025 at 2:22 AM
This talk was given on September 12 in the New York Combinatorics Seminar. Here's a link to the recording. youtu.be/BX6VkFHwn-g?...
So upsetting! This cannot wait to be remedied. All of us, but especially victims of abuse need a safe, affordable
place to live.
"Report reveals how domestic abusers weaponize B.C.'s housing crisis, calls for more legal aid" | CBC News
www.cbc.ca/news/canada/...
place to live.
"Report reveals how domestic abusers weaponize B.C.'s housing crisis, calls for more legal aid" | CBC News
www.cbc.ca/news/canada/...
Report reveals how domestic abusers weaponize B.C.'s housing crisis, calls for more legal aid | CBC News
A legal group's interviews with survivors of intimate partner violence show that many stay in abusive relationships because they can't find affordable housing. Following the interviews, a report from ...
www.cbc.ca
November 16, 2025 at 9:43 PM
So upsetting! This cannot wait to be remedied. All of us, but especially victims of abuse need a safe, affordable
place to live.
"Report reveals how domestic abusers weaponize B.C.'s housing crisis, calls for more legal aid" | CBC News
www.cbc.ca/news/canada/...
place to live.
"Report reveals how domestic abusers weaponize B.C.'s housing crisis, calls for more legal aid" | CBC News
www.cbc.ca/news/canada/...
Reposted by Don De Tina
I updated the SuperSonic example to include synths, samples and FX and a fun playful interface.
SuperSonic is my port of SuperCollider’s extremely powerful scsynth engine to Web AudioWorklets so it can run in the browser.
Play with it here:
sonic-pi.net/supersonic/d...
SuperSonic is my port of SuperCollider’s extremely powerful scsynth engine to Web AudioWorklets so it can run in the browser.
Play with it here:
sonic-pi.net/supersonic/d...
November 15, 2025 at 2:25 PM
I updated the SuperSonic example to include synths, samples and FX and a fun playful interface.
SuperSonic is my port of SuperCollider’s extremely powerful scsynth engine to Web AudioWorklets so it can run in the browser.
Play with it here:
sonic-pi.net/supersonic/d...
SuperSonic is my port of SuperCollider’s extremely powerful scsynth engine to Web AudioWorklets so it can run in the browser.
Play with it here:
sonic-pi.net/supersonic/d...
An fyi to friends, after a rough day and night, feeling so much better this morning. I think the culprit really was that Thai restaurant after all.
November 15, 2025 at 1:20 PM
An fyi to friends, after a rough day and night, feeling so much better this morning. I think the culprit really was that Thai restaurant after all.
Even in a simple interview Tina Brown beams astute formulation, daring wit and incisive metaphor. Fun read! Unlocked article from The New York Times. www.nytimes.com/2025/11/15/m...
Tina Brown Thinks the Über-Rich Have It Coming
www.nytimes.com
November 15, 2025 at 1:12 PM
Even in a simple interview Tina Brown beams astute formulation, daring wit and incisive metaphor. Fun read! Unlocked article from The New York Times. www.nytimes.com/2025/11/15/m...