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Achim Tack

@atack.bsky.social
1.8K followers 1.3K following 48 posts

• passionate about #maps, #geodata & #ddj • (urban) data analytics @ubilabs • data journalism @spiegel.de • Hamburg, Germany

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Reposted by Achim Tack
Marcel Pauly @marcelpauly.de · 14/05/2026
Wer sich in den vergangenen Wochen etwas mit der NSDAP-Mitgliederkartei beschäftigt hat, musste irritiert sein vom Stunt von Correctiv und Katapult. Viel zu spät haben die Medienhäuser begriffen, was sie da am Dienstag rausgehauen haben. Nun mussten sie ihre Veröffentlichungen zurückziehen. 1/12
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Jana Tauschinski @janatausch.bsky.social · 14/02/2026
A special FT magazine issue all about maps is out today, w great pieces by @okr.bsky.social and @theboysmithy.ft.com, plus maps by me on how glacial melt is redrawing Alpine borders, the battle to redraw America and more Read it online here (though best enjoyed in print!) www.ft.com/content/efab...
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Torsten Kleinz @publictorsten.bsky.social · 28/12/2025
Hacken als Akt der Selbstermächtigung. Wusstet Ihr, dass Rollstühle Paywalls haben? www.spiegel.de/netzwelt/hac...
spiegel.de
Hackerkonferenz 39C3: Warum eine Multiple-Sklerose-Erkrankte ihren Rollstuhl hackte
Elektroantriebe für Rollstühle erleichtern vielen Betroffenen das Leben. Doch der Grad der Hilfe hängt vom Geldbeutel ab. Eine Hackerin hebelte die Paywall ihres Rollstuhls aus. Das war erstaunlich ei...
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Achim Tack @atack.bsky.social · 26/12/2025
Unwahrscheinlich, aber falls noch jemand spontan ausfällt würde ich mich über ein Ticket echt freuen 🤓 #39c3ticket #39c3
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DER SPIEGEL @spiegel.de · 18/12/2025
Auch 2026 fallen einige Feiertage auf Wochentage. Wer Brückentage geschickt nutzt, kann das Maximale aus seinem Urlaub herausholen. Unser interaktiver Rechner zeigt, wie Sie möglichst viele freie Tage am Stück genießen können.
spiegel.de
Brückentage-Rechner: So optimieren Sie Ihren Urlaub in 2026
Auch 2026 fallen einige Feiertage auf Wochentage. Wer Brückentage geschickt nutzt, kann das Maximale aus seinem Urlaub herausholen. Unser interaktiver Rechner zeigt, wie Sie möglichst viele freie Tage am Stück genießen können.
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DER SPIEGEL @spiegel.de · 15/12/2025
Laut neuen Berechnungen könnte die Zahl der Erwerbsfähigen um zehn Millionen schrumpfen. Das hätte Folgen für alle: Die Sozialabgaben müssten deutlich steigen. Der Überblick in Grafiken.
spiegel.de
Rente, Krankenversicherung, Pflege: So drastisch wird der Schwund der Beitragszahler
Laut neuen Berechnungen könnte die Zahl der Erwerbsfähigen um zehn Millionen schrumpfen. Das hätte Folgen für alle: Die Sozialabgaben müssten deutlich steigen. Der Überblick in Grafiken.
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Achim Tack @atack.bsky.social · 14/12/2025
Missed out on the #39c3 ticket sale. Apparently not a great idea to try the ticket shop via a hospital WiFi. 😫 Anyways: if someone knows something...
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Achim Tack @atack.bsky.social · 20/06/2025
Off to the Living Planet Symposium in Vienna this Sunday – excited to meet new faces and catch up with familiar ones. Who else is around? 🛰️ #LPS25
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Marcel Pauly @marcelpauly.de · 26/05/2025
Wir haben das AfD-Gutachten des Verfassungsschutzes digitalisiert und machen die Zitate durchsuchbar, die das BfV als Belege für die Bestrebungen der Partei gegen die freiheitliche demokratische Grundordnung heranzieht: www.spiegel.de/politik/deut...
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Maya @may.as · 25/02/2025
I just released the Museum of All Things version 1.0!!! You can find it at mayeclair.itch.io/museum-of-al...
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Patrick Stotz @patrickstotz.bsky.social · 18/02/2025
Officially approved pie chart today at the office. Thanks @helenbielawa.bsky.social!
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Patrick Stotz @patrickstotz.bsky.social · 05/02/2025
A few months ago we introduced a new monthly team meeting: Charts & Drinks. Yesterday's edition was a mix of showing vacation pictures and geo guessing. Including a quiz interface built by ChatGPT, a felt map as collaborative tool and an unbeatable AI bot built by @atack.bsky.social. So much fun!
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Achim Tack @atack.bsky.social · 21/01/2025
Did I miss the memo? Aren't we still calling ourselves like that?
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Achim Tack @atack.bsky.social · 24/12/2024
Happy Holidays! 🎄🌍 Best time of the year to tinker around with gaussian splats...
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Steven Bernard @sdbernard.bsky.social · 22/12/2024
NEW: The largest map I've made at the @financialtimes.com, highlighting the tragic events in Valencia. @barneyjopson.bsky.social report looks into the failed implementation of risk reduction plans, building on known flood zones and failure to heed warnings on the day ft.com/content/6199... #dataviz
Map of Valencia and surrounding areas, highlighting the flood extent on October 29 and buildings that were built after 2000
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Fiete Stegers @fstegers.bsky.social · 20/12/2024
Aus aktuellem Anlass: 9 Tipps für kritischen Medienkonsum bei Breaking News von #UseTheNews. Download als PDF learn.hoou.de/mod/page/view.php?id=… #magdeburg
Eilmeldung!!! Cool bleiben bei Katastrophen News
Alle machen Fehler
Ganz plötzlich passiert ein Unglück, ein Amoklauf oder ein Terroranschlag - dann berichten Medien in der Hektik manchmal Dinge, die sich später als falsch herausstellen und korrigiert werden.
Krass, wer sagt das?
Sei misstrauisch, wenn du die Quelle einer Information nicht kennst oder nicht weißt, wer wirklich hinter einem Social-Media-Profil steckt.
Querlesen hilft
Vergleiche die Berichte von zwei oder mehr Medien, die du kennst und denen du vertraust.
Also z. B. Radio- oder TV-Sender, Zeitungen oder Nachrichtenseiten im Internet.Sprache beachten
Vertrauenswürdige Medien machen klar, woher sie eine Info haben und wie sicher sie ist.
Vorsichtige Formulierungen deuten darauf hin, dass etwas noch nicht so klar ist.
Exklusivmeldung und stille Post
Medien berichten, dass andere Medien etwas melden? Meist heißt das, dass eine Zeitung in der Sache mehr weiß als alle anderen. Doch sie kann auch irren. Und es kommt auch vor, dass andere Medien beim Weitergeben wichtige Details vergessen.
Wer ist vor Ort + kennt sich aus?
Was sagen die Medien am Ort des Geschehens, die Zeitung der Stadt oder der Radiosender aus der Region? Doch auch wer als erster da war, hat nicht sofort Antworten auf alle Fragen. Noch mehr gilt dies für Experten, die im TV-Studio sitzen.Schnell, aber immer verlässlich?
Bei Insta, YouTube oder TikTok gibt es schon viel mehr Infos als in der Nachrichten-App?
Kann sein. Augenzeugen-Berichte findest du dort schnell. Ob die stimmen, hat dann aber niemand geprüft.
Noch mehr Opfer, noch mehr Täter?
Dramatische Ereignisse locken Fälscher und Wichtigtuer an. Andere Menschen teilen Gerüchte, Fakes und Falschinformationen, weil sie Angst haben und es nicht besser wissen.
Denke daran, wenn du dich über ein Video aufregst, es likest oder teilst.
Besondere Vorsicht bei Bildern
Fotos und Videos von Opfern oder Verdächtigen zu teilen, ist meistens eine schlechte Idee.
Was wäre, wenn die gezeigte Person es gar nicht ist? Wie fühlt sich deren Familie?
Und Bilder von laufenden Polizeieinsätzen im Netz können womöglich Täter warnen.
Eilmeldung!!! Cool bleiben bei Katastrophen-News
Pr:TAPD
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Matthias Stahl @higsch.com · 19/12/2024
✨ NEW 📊 project: When the German government collapsed on Nov 6, some parties immediately got a lot of donations for their campaigns. @spiegel.de now tracks large donations (more than 35,000 Euros) to political parties in 🇩🇪 in our donations tracker. ➡️ Free to read: www.spiegel.de/politik/deut...
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Achim Tack @atack.bsky.social · 12/12/2024
... a really exciting year at Ubilabs is coming to an end. Time for the obligatory Christmas card, where the team has once again outdone themselves this year 🤯 xmas2024.ubilabs.com
xmas2024.ubilabs.com
Ubilabs - Papertrail to Christmas
Help saving Christmas by collecting the last lost wishlists.
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Julio Novoa @julionovoa.ca · 06/12/2024
There’s a new #Sentinel-1C in orbit 🛰️ It extends the legacy of its predecessors, delivering high-resolution #radar imagery to monitor Earth’s changing #environment, supporting a diverse range of applications and advancing #scientific research
esa.int
Double win for Europe: Sentinel-1C and Vega-C take to the skies
The third Copernicus Sentinel-1 satellite was launched on a Vega-C rocket from Europe’s Spaceport in French Guiana. Sentinel-1C extends the legacy of its predecessors, delivering high-resolution radar...
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Erwan Rivault @erwanrivault.com · 05/12/2024
Spotify wrapped cartographer's edition
Your most used reply to ChatGPT was “that doesn’t work” in Spotify wrapped styleYou downloaded 278 GB of satellite imagery and only used 3% of it in Spotify wrapped styleYou spent 1,589 minutes explaining why you shouldn't use a
Mercator projection for that map in Spotify wrapped styleYou have 4,879 netcdf files in your downloads and they all have names like GEOS.fp.asm.inst1_2d_lfo_Nx.20230104_0300.V01.nc4 in Spotify wrapped style
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Ed Hawkins @edhawkins.org · 23/08/2024
New air quality stripes! Find your city and see how the air quality has changed over the past 170+ years. www.airqualitystripes.info Built by: Kirsty Pringle & @jimmcquaid.bsky.social
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Chartball @chartball.bsky.social · 28/11/2024
NHL Vancouver Canucks at Pittsburgh Penguins, Wednesday, November 27, 2024 #nhlhockey #gamecharts #dataviz
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Datawrapper @datawrapper.de · 28/11/2024
Fargo, Severance, Black Mirror, Atlanta, Master of None, Euphoria – they all left their fans waiting for three years or more between seasons. In fact, we're waiting longer than ever for TV shows to return, as @lisacmuth.bsky.social shows in her Weekly Chart: blog.datawrapper.de/waittime-for...
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Robbi Bishop-Taylor 🛰️🌏 @satellitesci.bsky.social · 27/11/2024
One of my favourite data discoveries this year: Google's mind-blowing ARCO-ERA5 dataset: hourly data for ~300 climate variables, available globally from 1940! 🤯 Loadable with a single line of Python code from a single cloud-friendly Zarr file! Below: a month of wind waves + swell: 🌊
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Ansgar Wolsing @ansgarw.bsky.social · 23/11/2024
Some more map calligraphy: Places I’ve called home so far. 🏠 5 of them have one thing in common, one is an outlier in this regard. Can you spot it? #30DayMapChallenge Day 23 Memory #rstats #maps
A map showing the names of cities I've called home (Moers, Duisburg, Hannover, Mannheim, Düsseldorf, and Cologne) written in letters arranged within the shape of their respective city boundaries.
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Fabio Franchino @fabiofranchino.com · 24/11/2024
If ChatGPT with its data analyzer capability was unbelievable at the time of its launch, what you can do with Bolt.New on a given dataset is the next level. Everyone can draft a dashboard in minutes! 😨 No need to wait for the dev/data department to set up a new chart in Tableau/Power BI.
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The Pudding @pudding.cool · 21/11/2024
The US workforce can be divided into “sitters” (like programmers and lawyers) and “standers” (like servers and construction workers). In our newest piece, @alv9n.com looks at what we can learn from this labor split. 💻: pudding.cool/2024/11/sitt... 📺: www.youtube.com/watch?v=sE_E...
pudding.cool
Sitters and Standers
The American worker divide: Those who sit, and those who stand
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Achim Tack @atack.bsky.social · 21/11/2024
This is a great idea. Reminds me of the navigation in classic Falk maps.
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Lucia Walinchus @walinchus.bsky.social · 20/11/2024
According datajournalism.com, 60% of data journalists in their last survey were male. And a recent @pewresearch.org paper showed about 2/3 of "news influencers" are men. So please share this with anyone who might be interested in broader horizons. Representation matters! go.bsky.app/8gob51T
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Achim Tack @atack.bsky.social · 20/11/2024
Ever wondered what makes the perfect waffle? 🧇 Finding the best recipe can be tricky, so I analyzed hundreds of recipes to find out! Dive into the data-driven quest for the ultimate waffle recipe here: www.achim-tack.org/wafflelytics
achim-tack.org
wafflelytics — achim tack
My data-driven quest for the definitive waffle recipe...
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Patrick Stotz @patrickstotz.bsky.social · 19/11/2024
A few charts and maps from our recent story on oil producing countries (oil rents as share of GDP, crude oil production per country, export flows). #ddj #dataviz www.spiegel.de/wissenschaft...
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NSF–DOE Rubin Observatory @rubinobservatory.org · 19/11/2024
It's probably a surprise to no one, but telescopes have a lot of reflective surfaces just begging for selfies! 🤳 Take a browse through some of our recent favorites from our #RubinTeam 📸 🧪🔭
Five people in white protective suits and masks huddled together and reflected on a circular surfaceA view looking into the end of Rubin's commissioning camera. A small blue circle at the center is the camera's detector, which is surrounded by electronics and a thick black ring marking the outer circumference of the camera. A tiny person looking upward and holding a handheld digital camera can be seen reflected in the blue detectorA person in a white lab coat and blue hard hat kneels on a white floor, reflected in a circular mirror. The mirror is actually a camera filter that reflects all visible wavelengths such that it looks like a mirror.Four people in orange construction vest and hard hats smile next to a camera propped on a tripod. The camera is facing the same direction as the four people, revealing that this is in fact a reflection in one of Rubin's telescope mirrors.
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Ansgar Wolsing @ansgarw.bsky.social · 19/11/2024
The EU only with letters. 🅰️🅱️©️ 🇪🇺 #30DayMapChallenge Day 19 Typography #rstats #maps
A map of the EU 27 which is made of the letters of the country names. Each country's shape is formed with the country name.
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JD Long @jdlong.cerebralmastication.com · 16/11/2024
This Bluesky follow finder is super neat. It finds folks you don’t follow who follow folks you follow. So it helps fill in your network. It’s the type of cool stuff enabled by an open ecosystem. bsky-follow-finder.theo.io
bsky-follow-finder.theo.io
Bluesky Network Analyzer
Find accounts that you don't follow (yet) but are followed by lots of accounts that you do follow.
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Cédric Vidonne @cvidonne.bsky.social · 17/11/2024
🌍 #30DayMapChallenge Day 17: Collaborative Map! Today’s map was a family creation! Using LEGO bricks, my kids and I built a map of Switzerland highlighting its four distinct language regions: German, French, Italian, and Romansh. #maps #LEGO
A map of Switzerland made entirely from LEGO bricks, color-coded to represent the four language regions: German, French, Italian, and Romansh.
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Niels Ohlsen @nielsohlsen.bsky.social · 16/11/2024
Join Us for Dataviz Meetup #10: Visual Science Communication 🧪🌍 🗓 Date: December 3rd, 2024 🕕 Time: 18:00 MESZ 📍 Location: 👉 In-Person Event: www.meetup.com/data-visuali... 👉 Online Event: www.meetup.com/data-visuali...
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Erwan Rivault @erwanrivault.com · 15/11/2024
#30DayMapChallenge Day 15: My data Quick fun project: I was curious if the spare coins I had would tell much about me - where i'm from, where i live, and where I’ve traveled... So I stacked all the coins on my table and overlaid a European map, here's what it showed!
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Ben Schmidt @bschmidt.bsky.social · 15/11/2024
PSA: Alphabetical order is often bad for geodata! I took the data from the WSJ article below and used a more natural geographical order; it makes it possible to see regional measles epidemics in 1935-36, the western polio outbreak, etc. Interactive notebook. observablehq.com/d/53c696e100...
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Meshcapade @meshcapade.com · 14/11/2024
Coming soon: Motion from video is levelling up 🥊 👣 You spoke we listened! Improved foot-to-ground contact ✅ Enhanced hand tracking ✅ Smoother overall motion ✅ Here’s a sneak peek of the new updates hitting the Meshcapade platform soon! #MoCapade #MotionCapture #3D #Animation
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Matthias Stahl @higsch.com · 14/11/2024
There's a starter pack with all SPIEGEL data & visual journalists now: go.bsky.app/G1RTn5g 📊👩‍💻👨‍💻
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Achim Tack @atack.bsky.social · 13/11/2024
How did the pandemic reshape my daily life? Revisiting an old side project, "My Corona Year," I dive into personal data to analyze changes in mobility, consumer habits, and leisure activities during 2020. Explore the full post here: www.achim-tack.org/coronayear
achim-tack.org
my corona year — achim tack
a data-driven review of 2020
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John Burn-Murdoch @jburnmurdoch.ft.com · 13/11/2024
A tale of two platforms: BlueSky user numbers have hit a new record high in recent days, while the number of people deleting their accounts on X/Twitter has rocketed 🚀
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Achim Tack @atack.bsky.social · 13/11/2024
Sadly, I can’t join #30DayMapChallenge this year, but here’s a look back at the maps I created in 2021! www.achim-tack.org/30daymapchal... Always great to see so many ideas from the mapping community. #GIS #DataViz
achim-tack.org
#30daymapchallenge — achim tack
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milos makes maps @milos-makes-maps.bsky.social · 12/11/2024
Hey people! If you are into #geospatial anysis and data #visualization, I created a #GIS starter pack to help you connect with accounts with valuable resources in the field. Check it out here and please suggest new names to expand it: go.bsky.app/TJ7qQF6
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Achim Tack @atack.bsky.social · 13/11/2024
Hi! I'm an urban planner and data wrangler passionate about maps and geospatial data. I work as a consultant in data analytics at Ubilabs and as a data journalist in the Data & Visualizations unit at Der Spiegel. In my spare time, I engage in creative projects blending technology with design.
A laser engraver working on a cellphone case
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Edward Deaver @edwarddeaver.bsky.social · 13/11/2024
On Election night I made a scraper that took the #NYTimes election data json ~every 10 minutes and put it on my mechanical display. #creativetech #dataviz This is a timelapse of the night with the sound added back in. vimeo.com/1027074047
vimeo.com
2024PresidentialElection
This is "2024PresidentialElection" by Edward Deaver, IV on Vimeo, the home for high quality videos and the people who love them.
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Jesse Onland @jdonland.bsky.social · 12/11/2024
I counted pixels to see just how bad this 3D pie from NBC is. The 3 percentage point difference between the two largest items has been exaggerated to look like a 21-point difference in the opposite direction! #election #dataviz
A 3D pie chart superimposed on a bar chart showing the distortion created by its angled perspective.
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Martin Stabe @martinstabe.ft.com · 11/11/2024
I’ve got a starter pack version of that as well, here: go.bsky.app/LHXSkTg
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Patrick Stotz @patrickstotz.bsky.social · 08/11/2024
Also thanks @datawrapper.bsky.social for releasing arrow maps just in time. Came in handy for the election.
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