David J. Gillcrist
@davidjgillcrist.com
Mathematician • PhD Candidate • Science Educator • Unabashedly Confused Person • Dad
Website: davidjgillcrist.com
I research differential geometry-informed optimal experimental design
Banner: Rings of dry ice vapor trapped by acoustic radiation force
Website: davidjgillcrist.com
I research differential geometry-informed optimal experimental design
Banner: Rings of dry ice vapor trapped by acoustic radiation force
Pinned
David J. Gillcrist
@davidjgillcrist.com
· Nov 26
DESIGN OF EXPERIMENTS VIA MULTI-FIDELITY SURROGATES AND STATISTICAL SENSITIVITY MEASURES
Abramowitz, M. and Stegun, I.A., Orthogonal Polynomials, Applied Math Series, Washington, DC: U.S. Dept. of Commerce, National Bureau of Standards, 1972.
www.dl.begellhouse.com
I'd like everyone on #MathSky to know that I recently got published in the Journal of Machine Learning for Modeling and Computing! 🎉🎉🎉
The article is titled Design of Experiments via Multi-Fidelity Surrogates and Statistical Sensitivity Measures, found here: www.dl.begellhouse.com/journals/558...
The article is titled Design of Experiments via Multi-Fidelity Surrogates and Statistical Sensitivity Measures, found here: www.dl.begellhouse.com/journals/558...
Reposted by David J. Gillcrist
The new surface-colouring option in @desmos.com 3D allows a cute way of visualizing conic sections.
www.desmos.com/3d/fiv5gnltdl
(The option to have translucent surfaces doesn't save with the graph itself, so needs to be re-toggled on. It's important for seeing the full curves)
#MathSky #iTeachMath
www.desmos.com/3d/fiv5gnltdl
(The option to have translucent surfaces doesn't save with the graph itself, so needs to be re-toggled on. It's important for seeing the full curves)
#MathSky #iTeachMath
October 29, 2025 at 3:38 PM
The new surface-colouring option in @desmos.com 3D allows a cute way of visualizing conic sections.
www.desmos.com/3d/fiv5gnltdl
(The option to have translucent surfaces doesn't save with the graph itself, so needs to be re-toggled on. It's important for seeing the full curves)
#MathSky #iTeachMath
www.desmos.com/3d/fiv5gnltdl
(The option to have translucent surfaces doesn't save with the graph itself, so needs to be re-toggled on. It's important for seeing the full curves)
#MathSky #iTeachMath
Reposted by David J. Gillcrist
How New Trump Multiyear Policy Makes NIH Grants Even Harder To Get
Here’s my coverage in @forbes.com of this
🛟 🧪 😷 #AcademicSky #MedSky #episky🩺 #HiSciSky Public Health #science
www.forbes.com/sites/brucel...
Here’s my coverage in @forbes.com of this
🛟 🧪 😷 #AcademicSky #MedSky #episky🩺 #HiSciSky Public Health #science
www.forbes.com/sites/brucel...
How New Trump Multiyear Policy Makes NIH Grants Even Harder To Get
The new Trump administration multiyear funding policy for NIH grants has dropped National Cancer Institute grant funding rates from one in 10 applicants to one in 25.
www.forbes.com
October 28, 2025 at 5:53 PM
How New Trump Multiyear Policy Makes NIH Grants Even Harder To Get
Here’s my coverage in @forbes.com of this
🛟 🧪 😷 #AcademicSky #MedSky #episky🩺 #HiSciSky Public Health #science
www.forbes.com/sites/brucel...
Here’s my coverage in @forbes.com of this
🛟 🧪 😷 #AcademicSky #MedSky #episky🩺 #HiSciSky Public Health #science
www.forbes.com/sites/brucel...
Sooo, when are we gonna get a collaboration between Noah Kahan and Canada's Noah Kahan (i.e. Cameron Whitecomb)? #Canada #Music #CanadianMusic
September 23, 2025 at 4:58 PM
Sooo, when are we gonna get a collaboration between Noah Kahan and Canada's Noah Kahan (i.e. Cameron Whitecomb)? #Canada #Music #CanadianMusic
Reposted by David J. Gillcrist
Wishing a happy 83rd birthday to NASA mathematician and researcher Christine Darden, who specialized in the analysis of supersonic noise and research into its reduction. She was the first Black woman at NASA to reach Senior Executive Service status.
#WomenInSTEM #NASA #MathSky 🧪🚀
#WomenInSTEM #NASA #MathSky 🧪🚀
September 10, 2025 at 1:59 PM
Wishing a happy 83rd birthday to NASA mathematician and researcher Christine Darden, who specialized in the analysis of supersonic noise and research into its reduction. She was the first Black woman at NASA to reach Senior Executive Service status.
#WomenInSTEM #NASA #MathSky 🧪🚀
#WomenInSTEM #NASA #MathSky 🧪🚀
Reposted by David J. Gillcrist
We published this on the @fancycomma.bsky.social blog and it feels very true right now, as it has always been, in my experience. Read: fancycomma.com/2025/06/07/f... #SciComm #SciPol
September 12, 2025 at 5:36 PM
We published this on the @fancycomma.bsky.social blog and it feels very true right now, as it has always been, in my experience. Read: fancycomma.com/2025/06/07/f... #SciComm #SciPol
I forget where I originally saw this, but it's one of my absolute favorite memes. #MathSky #iTeachMath #MathMemes #ScienceMemes
August 15, 2025 at 4:54 PM
I forget where I originally saw this, but it's one of my absolute favorite memes. #MathSky #iTeachMath #MathMemes #ScienceMemes
Reposted by David J. Gillcrist
🎻 96% of all classical music is heard on public radio. If Congress approves a proposal to strip public radio funding, on-air classical music would virtually cease to exist in the United States.
Take action today to #SavePublicRadio and the music you love at goACPR.org
Take action today to #SavePublicRadio and the music you love at goACPR.org
June 11, 2025 at 4:20 PM
🎻 96% of all classical music is heard on public radio. If Congress approves a proposal to strip public radio funding, on-air classical music would virtually cease to exist in the United States.
Take action today to #SavePublicRadio and the music you love at goACPR.org
Take action today to #SavePublicRadio and the music you love at goACPR.org
Reposted by David J. Gillcrist
UPDATE: We have data on >1000 terminated #NSF grants at grant-watch.us. Thanks to all who have been contributing data the past few days.
We've also added a "Reports" section with some analyses. For NSF, we see that the STEM education directorate has been absolutely pummeled.
We've also added a "Reports" section with some analyses. For NSF, we see that the STEM education directorate has been absolutely pummeled.
April 30, 2025 at 10:49 PM
UPDATE: We have data on >1000 terminated #NSF grants at grant-watch.us. Thanks to all who have been contributing data the past few days.
We've also added a "Reports" section with some analyses. For NSF, we see that the STEM education directorate has been absolutely pummeled.
We've also added a "Reports" section with some analyses. For NSF, we see that the STEM education directorate has been absolutely pummeled.
There is no singular article that reflects the autocracy—and the rampant violations of the core rights and principles that go along with it—happening right now in the United States. However, stripping children away from a country they have a constitutional right to be in, and justifying it… (1/5)
U.S. judge says 2-year-old apparently deported to Honduras 'with no meaningful process'
The toddler, a U.S. citizen, was apparently sent to Honduras with her mother and 11-year-old sister, even as a federal judge tried to contact an attorney representing the government.
www.npr.org
April 28, 2025 at 4:32 PM
There is no singular article that reflects the autocracy—and the rampant violations of the core rights and principles that go along with it—happening right now in the United States. However, stripping children away from a country they have a constitutional right to be in, and justifying it… (1/5)
Reposted by David J. Gillcrist
I internalize posts like this as subtly encouraging us to not dispair and be optimistic about the future. Sometimes a calm meditative moment is enough to promote a proactive attitude for positive change. I for one WILL watch some birds this weekend. 😊 #Science 🌍🌎🌏
🪶🌎🧪 Try to take a break and watch some birds this weekend.
February 21, 2025 at 5:06 PM
I internalize posts like this as subtly encouraging us to not dispair and be optimistic about the future. Sometimes a calm meditative moment is enough to promote a proactive attitude for positive change. I for one WILL watch some birds this weekend. 😊 #Science 🌍🌎🌏
Reposted by David J. Gillcrist
"Get up offa that thing,
And shake 'till you feel better,
Get up offa that thing,
And try to release that pressure!"
In other words, JOIN the #standupforscience2025 MOVEMENT!
And Happy Valentine's Day to all those cardiovascular scientists out there! 🫀(😘)
#AcademicSky 🧪
And shake 'till you feel better,
Get up offa that thing,
And try to release that pressure!"
In other words, JOIN the #standupforscience2025 MOVEMENT!
And Happy Valentine's Day to all those cardiovascular scientists out there! 🫀(😘)
#AcademicSky 🧪
Three weeks until #standupforscience2025!
We’ve had incredible support, with volunteers signing up across 25 states – but we’re not stopping there! We’re still looking for passionate advocates who believe in the power of science to make a difference.
Sign up today! airtable.com/app4h5wUssMG...
We’ve had incredible support, with volunteers signing up across 25 states – but we’re not stopping there! We’re still looking for passionate advocates who believe in the power of science to make a difference.
Sign up today! airtable.com/app4h5wUssMG...
February 14, 2025 at 3:38 PM
"Get up offa that thing,
And shake 'till you feel better,
Get up offa that thing,
And try to release that pressure!"
In other words, JOIN the #standupforscience2025 MOVEMENT!
And Happy Valentine's Day to all those cardiovascular scientists out there! 🫀(😘)
#AcademicSky 🧪
And shake 'till you feel better,
Get up offa that thing,
And try to release that pressure!"
In other words, JOIN the #standupforscience2025 MOVEMENT!
And Happy Valentine's Day to all those cardiovascular scientists out there! 🫀(😘)
#AcademicSky 🧪
Reposted by David J. Gillcrist
Thanks to the more than *1100* members of the scientific community who have signed the letter to insist that the Royal Society remains true to values that we all hold dear but that Musk FRS has ridden roughshod over.
Please keep signing & sharing.
docs.google.com/forms/d/e/1F...
Please keep signing & sharing.
docs.google.com/forms/d/e/1F...
Open letter to the President of the Royal Society – time to stand up for your values
If you wish to show your support for the letter below regarding apparent inaction by the Royal Society in the face of breaches of its code of conduct by Elon Musk FRS, please sign below. I invite anyo...
docs.google.com
February 13, 2025 at 8:33 AM
Thanks to the more than *1100* members of the scientific community who have signed the letter to insist that the Royal Society remains true to values that we all hold dear but that Musk FRS has ridden roughshod over.
Please keep signing & sharing.
docs.google.com/forms/d/e/1F...
Please keep signing & sharing.
docs.google.com/forms/d/e/1F...
I think everyone in #sciart agrees that AI generated art is overall bad for the art community, and society by and large. We seem to have a good eye for finding visual AI art, but what about music? I hope I'm not defaming anyone, but after listening to Eternal Eclipse's cinematic music, I've… (1/2)
Eternal Eclipse
www.youtube.com
February 6, 2025 at 5:04 PM
I think everyone in #sciart agrees that AI generated art is overall bad for the art community, and society by and large. We seem to have a good eye for finding visual AI art, but what about music? I hope I'm not defaming anyone, but after listening to Eternal Eclipse's cinematic music, I've… (1/2)
Reposted by David J. Gillcrist
John Tuthill, a scientist who studies brain control of movement, was banned from NIH today due to Trump directives.
He was scheduled to give a seminar about his work. But all visiting seminars have been banned.
Exchanging ideas is the lifeblood of science, and this will harm progress.
🧪
He was scheduled to give a seminar about his work. But all visiting seminars have been banned.
Exchanging ideas is the lifeblood of science, and this will harm progress.
🧪
I was supposed to give a talk in the NIH Neuroscience Seminar Series today, but it was cancelled because of Trump's executive orders.
research.ninds.nih.gov/seminars-eve...
Amongst the deluge, it seems that most Americans remain unaware that Trump is paralyzing the biomedical research community.
research.ninds.nih.gov/seminars-eve...
Amongst the deluge, it seems that most Americans remain unaware that Trump is paralyzing the biomedical research community.
Neuroscience Seminar Series | NINDS Division of Intramural Research
Image
research.ninds.nih.gov
February 4, 2025 at 1:45 AM
John Tuthill, a scientist who studies brain control of movement, was banned from NIH today due to Trump directives.
He was scheduled to give a seminar about his work. But all visiting seminars have been banned.
Exchanging ideas is the lifeblood of science, and this will harm progress.
🧪
He was scheduled to give a seminar about his work. But all visiting seminars have been banned.
Exchanging ideas is the lifeblood of science, and this will harm progress.
🧪
What a wonderfully written opinion that I 100% agree with. #scicomm
Why Scientists Should Care About Social Media?
For a long time, scientists were told to “let the research speak for itself.” But in today’s world, that’s not enough.
Whether we like it or not, science communication is happening on social media—with or without us.
🧵1/7
For a long time, scientists were told to “let the research speak for itself.” But in today’s world, that’s not enough.
Whether we like it or not, science communication is happening on social media—with or without us.
🧵1/7
February 1, 2025 at 11:26 PM
What a wonderfully written opinion that I 100% agree with. #scicomm
I signed up for Medium to read the article because I was curious to know if the tone of the piece matched the title. The article was actually quite nice and gave a diversity of explanations for the problem. Nevertheless, it's unfortunate that the writer… (1/6)
#MathSky #iTeachMath #SciComm #EduSky
#MathSky #iTeachMath #SciComm #EduSky
January 27, 2025 at 3:51 AM
I signed up for Medium to read the article because I was curious to know if the tone of the piece matched the title. The article was actually quite nice and gave a diversity of explanations for the problem. Nevertheless, it's unfortunate that the writer… (1/6)
#MathSky #iTeachMath #SciComm #EduSky
#MathSky #iTeachMath #SciComm #EduSky
Reposted by David J. Gillcrist
Omg #SciComm and #LongCOVID fam!
Dianna Cowern/PhysicsGirl stood up for the first time in TWO YEARS! I’m so happy for her!!
youtube.com/shorts/2ntx9...
Dianna Cowern/PhysicsGirl stood up for the first time in TWO YEARS! I’m so happy for her!!
youtube.com/shorts/2ntx9...
Dianna stands for the first time in 2 years!
YouTube video by Physics Girl
youtube.com
January 26, 2025 at 6:18 AM
Omg #SciComm and #LongCOVID fam!
Dianna Cowern/PhysicsGirl stood up for the first time in TWO YEARS! I’m so happy for her!!
youtube.com/shorts/2ntx9...
Dianna Cowern/PhysicsGirl stood up for the first time in TWO YEARS! I’m so happy for her!!
youtube.com/shorts/2ntx9...
I know @miniminuteman.bsky.social does a lot of conspiracy theory debunking, but I've got one that's irrefutable. Milo is actually the fictional character Casey Jones played by Elias Koteas brought to reality by ancient alien-druid magic. #conspiracytheory
January 25, 2025 at 8:39 PM
I know @miniminuteman.bsky.social does a lot of conspiracy theory debunking, but I've got one that's irrefutable. Milo is actually the fictional character Casey Jones played by Elias Koteas brought to reality by ancient alien-druid magic. #conspiracytheory
Reposted by David J. Gillcrist
I apologize in advance for the super-lengthy diatribe taking up a miles-worth of screen on these feeds. I am a very #succinctlychallenged person and struggle with distilling down my own thoughts into a short and impactful form. (0/N) where N=20
#science #scicomm #climatescience #climatepolitics
#science #scicomm #climatescience #climatepolitics
January 23, 2025 at 7:15 PM
I apologize in advance for the super-lengthy diatribe taking up a miles-worth of screen on these feeds. I am a very #succinctlychallenged person and struggle with distilling down my own thoughts into a short and impactful form. (0/N) where N=20
#science #scicomm #climatescience #climatepolitics
#science #scicomm #climatescience #climatepolitics
Reposted by David J. Gillcrist
Here’s some busy superb parrots at their nest hollow doing a feeding swap - dad had just finished and mum is about to feed the kids 🪶🌿🧪🌏🥰
January 22, 2025 at 10:44 PM
Here’s some busy superb parrots at their nest hollow doing a feeding swap - dad had just finished and mum is about to feed the kids 🪶🌿🧪🌏🥰