Blake Esselstyn
@mapblake.bsky.social
44 followers 34 following 18 posts
Formerly @districks on the birdsite. Geography, demography, GIS, redistricting, fairmaps. Oh, and dataviz. NC native trying to learn some Dutch.
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mapblake.bsky.social
Does the event start at 1:04? ;)
mapblake.bsky.social
I just learned from a math teacher that it is a day: Perfect Square Day!

And this is a special one for this century, because 2025 is 45²

bsky.app/profile/sara...
saravanderwerf.bsky.social
9 days until Perfect Square Day! I know 9/9/25 is a perfect square, but 9/16/25 hits a bit different as it connects with a 3/4/5 right traingle. On another note, I made my nephews pose for this pic when the turned ages 3, 4 & 5.
Download a countdown HERE: docs.google.com/document/d/1...
mapblake.bsky.social
Also, were you aware that 2025 is 45²?
mapblake.bsky.social
I know three people whose birthday is today. I told them that they should celebrate at 1:04. =)
mapblake.bsky.social
Do you know anyone whose birthday is today (Sept. 16th)?

If they like math—or even if they don't—you could point out to them that 9 / 16 / 25 is a sequence of perfect squares.

AND! 2025 is also a perfect square (45²).

Best time of day to acknowledge? Perhaps 1:04. 🤓
mapblake.bsky.social
I was a bit surprised to see that searches for "census geopackage" and "tiger geopackage" in Bluesky turned up zero results. May this post remedy that situation!

5/5
mapblake.bsky.social
What does it say about me that I've been on Bluesky since November of 2023 and this is what I choose to make my first original post/thread about? 🤓

4/5
mapblake.bsky.social
It also appears that this is not new news; the first such release evidently was in 2024.

(For my work, I still mostly use the 2020 geographies because of their alignment with the PL 94-171 redistricting file.)

www.census.gov/newsroom/pre...

3/5
Census Bureau Releases New Geospatial Data
The U.S. Census Bureau today announced the release of new geospatial data, including the first-time release of TIGER/Line files in GeoPackage format.
www.census.gov
mapblake.bsky.social
And (at least as of today) it would appear that the Census Bureau is making the 2025 TIGER data available as GeoPackages and NOT shapefiles.

www.census.gov/programs-sur...

2/5
TIGER Data Products Guide
Help determining which TIGER Product to use.
www.census.gov
mapblake.bsky.social
Evidently the 11th.
mapblake.bsky.social
Is the talk on the 4th or the 11th? The CNG post shows both.
mapblake.bsky.social
The text of this post says Sept 4; the image says Sept 11. Which is accurate?
mapblake.bsky.social
Sending my sympathies, Ruth.
mapblake.bsky.social
Little typo in Michal Migurski's name. His handle is @mike.teczno.com
Reposted by Blake Esselstyn
daniellaurison.bsky.social
JOB! Please RT.

Swarthmore is hiring for our Social Science Quantitative Lab Associate to support & do teaching quant methods to undergrads. Especially looking for people familiar with sociology and/or political science, and R. Apply by 4/18.

apply.interfolio.com/165892

Happy to answer questions.
Maroon banner at the top with the Swarthmore logo, then the text:
Social Science Quantitative Laboratory Associate
Swarthmore College: Sociology & Anthropology Department
Location
Swarthmore, Pennsylvania
Open Date
Apr 05, 2025

Description
Swarthmore College is seeking an individual to serve as an Associate in its Social Sciences Quantitative Lab (SSQL). This appointment is for a full-time, academic-year position for three years, with the possibility of renewal upon successful review. The expected starting date is August 2025.


The SSQL promotes students’ quantitative skills by providing tutorial services, statistical consultation, and research support to students in the social sciences. More information about the SSQL can be found here: https://www.swarthmore.edu/ssql.

Swarthmore College is a highly selective liberal arts college whose mission combines academic rigor with social responsibility. It is located in the suburbs roughly 10 miles west of Philadelphia and 15 miles north of Wilmington and has a SEPTA stop right on campus. Swarthmore has a strong institutional commitment to diversity, and actively seeks and welcomes applications from candidates with exceptional qualifications, particularly those with demonstrable commitments to a more inclusive society and world. Applicants from traditionally underrepresented groups are strongly encouraged to apply. For more information on Faculty Diversity and Excellence at Swarthmore, see http://www.swarthmore.edu/faculty-diversity-excellence/information-candidates-new-faculty

Responsibilities (continues in next image)
Planning and facilitating in-person workshops and classroom visits to support the teaching of quantitative methods in the social sciences—particularly in Political Science and Sociology/Anthropology—with the goal of familiarizing students with statistical software (R, Stata, and Excel) and helping them develop related data skills, including data collection, management, visualization, analysis, and export Responsibilities (continiued) 
Providing statistical support to students during regular office hours and by appointment, including assisting students with the identification, manipulation, and analysis of data sets for their empirical research projects

Planning and hosting stand-alone workshops to train students to work with statistical software commonly used in the social sciences, such as R, Stata, Python, Matlab, and/or Geographic Information System (GIS)

Collaborating with social science faculty teaching quantitative courses on how best to support their courses and their students

Creating additional opportunities for students with less experience in quantitative and computational methods to develop skills and confidence

Offering supplementary workshops in quantitative social sciences to help students develop skills for success as research assistants and to prepare them for quantitative careers and job markets

Qualifications
A Master of Arts or Science (MA or MS), or equivalent, in Political Science, Sociology, Economics, Public Policy, Statistics, Data Science, or a related field is required; a PhD in one of these fields is preferred.

Familiarity with statistics/econometrics, causal inference methods, and preparing data for quantitative social science research is required. Familiarity with computational and simulation methods is a plus.

Programming expertise in R and Excel and ability to learn new technical skills are required. Expertise in Python, Matlab, GIS, and/or other related software is a plus.

Demonstrated excellence in inclusive and equitable teaching practices that support the success of students from diverse backgrounds and with varying levels of preparation in quantitative skills. We seek applicants who cultivate welcoming classroom environments and use pedagogical strategies that promote belonging, engagement, and academic growth for all students.
mapblake.bsky.social
Wish I could be there!
mapblake.bsky.social
I'm fairly sure I know the answer to the trivia question. I was in that country earlier this month before the recent (and distressing) turn of events.
mapblake.bsky.social
Good thread to review if you want a refresher before the arguments today.
mcpli.bsky.social
On Monday, 3/24, the Supreme Court hears oral argument in a Louisiana racial gerrymandering case brought by *white* voters to challenge the state’s congressional map.

At issue is a new Black majority congressional district (LA-06 in the map below). A thread 🧵 on the case.