David Gleich
@dgleich.bsky.social
89 followers 70 following 240 posts
Purdue CS. I like matrices, graphs, networks, tensors if they fit, energy efficient stuff, Julia (I’m ex-Matlab), Laura (my wife), data, clean air, 3D printing, vaccines (especially for kids), cooking, hiking, skiing. I’m quiet so I don’t say too much.
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dgleich.bsky.social
(Probably over 100 classes in total at this point)
dgleich.bsky.social
I record all my 75 min classes with QuickTime. Never had an issue that wasn’t my fault. (Eg changing resolution… disconnecting something… not turning on the mic)
Reposted by David Gleich
mszll.datasci.social.ap.brid.gy
Nice project: A computational framework for quantifying route diversification in road networks
https://arxiv.org/abs/2510.02582

Interactive: https://divercitymaps.github.io/
Overview of DiverCity and global patterns in urban road networks. (a) Example of a trip with low
DiverCity (2.18) in Mumbai. Near-shortest routes significantly overlap, leading to low route diversity. (b) Example of
a trip with high DiverCity (9) in Tokyo, characterized by multiple spatially diverse near-shortest routes. For panels
(a) and (b), inset bar plots show the travel time of each alternative route, with NSRs in blue and non-feasible routes
(exceeding the near-shortest threshold, shown as a dashed line) in red.
dgleich.bsky.social
This will be the sign I take to the next rally. Has anyone found video of the events?
Reposted by David Gleich
iid.bsky.social
I keep thinking about the ICE officer cackling and saying “fuck them kids” while zip tying together naked children ripped from their homes in the middle of the night. Evil. Just pure evil
dgleich.bsky.social
Also, we should seek to reduce pm2.5 from any source!
johnvoorheis.bsky.social
Given the preponderance of evidence re: PM2.5 related mortality, taking literally any steps to continue burning coal when another, lower particulate matter producing option is available actually is something like murder.
Reposted by David Gleich
johnvoorheis.bsky.social
Given the preponderance of evidence re: PM2.5 related mortality, taking literally any steps to continue burning coal when another, lower particulate matter producing option is available actually is something like murder.
dgleich.bsky.social
Imagine a world where you don’t have to call up the Internet company every year to say… give me the lower rate again please?
dgleich.bsky.social
Just make your future self happier and sign up for these beans. Seriously good.
yesplz.coffee
This week's single origin drop is a really nice example from small grower Manuel Domingo's farm Las Flores.

Tootsie Roll chocolate with notes of persimmon, rose water, almond butter, grape.

You give us money and a mailing address and we'll give you the beans. www.yesplz.coffee/product/sing...
A colorful handmade splatter mug by artist Peter Shire sits atop a reflective table next to a ceramic Hario V60 dripper and a nearly empty glass serving kettle. Text reads Las Flores, Huehuetenango, Guatemala.
Reposted by David Gleich
yesplz.coffee
This week's single origin drop is a really nice example from small grower Manuel Domingo's farm Las Flores.

Tootsie Roll chocolate with notes of persimmon, rose water, almond butter, grape.

You give us money and a mailing address and we'll give you the beans. www.yesplz.coffee/product/sing...
A colorful handmade splatter mug by artist Peter Shire sits atop a reflective table next to a ceramic Hario V60 dripper and a nearly empty glass serving kettle. Text reads Las Flores, Huehuetenango, Guatemala.
dgleich.bsky.social
What is your target for the school?
Reposted by David Gleich
masknerd.bsky.social
Clean air is not complicated, and costs less than $10 per kid per year to do. This is the 4th year of managing this for my son's school. What happens when he moves to the next school, who will keep doing this for the other kids? We need clean air standards and legislation.
dgleich.bsky.social
Anyone else not enjoying iOS 26?
dgleich.bsky.social
I just cannot believe the microelectronics soldering skill on these iphone storage replacement videos… www.youtube.com/watch
dgleich.bsky.social
I love it when Claude vibecodes away doing the hard stuff…

for i, pos in enumerate(positions):
# Skip some positions for efficiency if too many
if len(positions) > 50000 and i % (len(positions) // 50000) != 0:
continue
Reposted by David Gleich
kevinbonham.com
It's been a long time since I actively followed @jeffjarvis.bsky.social (only because my interests diverged), but he's still got it!
acyn.bsky.social
Jarvis: I hate to say this to my friends here at CNN, mass media is dying, so they're taking the last of these vestiges of institutions that matter and they're trying to turn them into propaganda organs under threat from the head of the FCC
Reposted by David Gleich
melaniemitchell.bsky.social
If you’re like me and feeling increasingly hopeless and powerless about rising fascism, here is something you can do about it

⬇️
ezralevin.bsky.social
No Kings on Oct 18 is going to be the largest peaceful protest in American history. The only way to protect our freedom of speech is to exercise our freedom of speech. Get to planning in your community asap. nokings.org
chrismurphyct.bsky.social
It’s happening. The takedown of Jimmy Kimmel is likely the start of a campaign to use the murder of Charlie Kirk as a pretext to use the power of the White House to wipe out Trump’s critics and his political opponents.

But we aren’t powerless. We can mobilize and organize. Now.
Reposted by David Gleich
matthholden.bsky.social
Happy 4^ / 3^2 / 5^2 day!!! (3^2/ 4^2 / 5^2 for us weird Americans) Not too many days satisfy the Pythagorean thm. @amermathsoc.bsky.social @austms.bsky.social @stevenstrogatz.com @monsoon0.bsky.social ht Peter Baxter for noticing. Looking forward to coming back to the US for joint maths in Jan.
dgleich.bsky.social
Good to know reviewer 2 also had thoughts on the first paper regarding a vaccine.
scientificdiscovery.dev
Jenner observed that his vaccine meant people no longer developed a response to variolation, which implied that they'd also be protected from smallpox.
It is unlikely that Jenner was the first person to inoculate cowpox. Claims were later
made on behalf of those who were said to have priority. Particular attention was
paid to Benjamin Jesty, a Dorsetshire farmer, who is reliably believe to have inocu-
lated his wife and family with cowpox in 1774 [2]. However, all these early claims
came to light only after Jenner published in Inquiry, and so had no influence on the
theory or practice of medicine.
On May 14, 1796, Jenner took material from a lesion on the hand of Sarah
Nelmes (Fig. 1), who had become infected from her master’s cows, and inoculated
two sites on the arm of 8-year-old James Phipps. The lesions developed in about a
week, Phipps had some slight indisposition, but recovered uneventfully. Jenner
variolated him on July 1, but “no disease followed.” At this stage, Jenner submitted
his work to the Royal Society for the publication. They declined and suggested that
he need more information [5]. Jenner collected more epidemiological basis of his
claims. He published his results in a monograph at his own expense. Generally
referred to as the Inquiry, its full title (An Inquiry into the Causes and Effects of the
Variola Vaccinae) gave no indication of what particular “effects” were described.
He invented a Latin name for cowpox, variolae vaccinae (smallpox of the cow),
and illustrated the monograph with four hand-coloured engravings which showed
the hand of Sarah Nelmes and vaccinated lesions on the arms of three patients. At
first, the terms “cowpox inoculation” and “vaccine inoculation” were to be used to
describe the process, but these soon gave way to vaccination.
dgleich.bsky.social
Some interesting steps in some of those rates.
Reposted by David Gleich
lakshya.splitticket.org
About to hit my limit for today, so leaving with one thought: Most of us are not "fighting fascism" on social media. We are posting and scrolling on our phones. If it's not giving you value, why do it? Generally, our voice online *does not matter* as much as we think it does.
dgleich.bsky.social
First year none of the family texted about the new iPhones. I think Apple has a problem.