Graph Theory

Join us for a relaxed Monday evening full of new faces, unexpected conversations and the kind of atmosphere that makes the week feel a little more alive. Whether you’re new in Berlin or simply looking to meet open-minded people, this is a space to connect, share stories and start the week with a little more curiosity. Orga The location accepts only card payments. We will be sitting in the first room. Questions? Check our Meetup-FAQs: [https://socialbutterfly.berlin/meetup-faq/](https://socialbutterfly.berlin/meetup-faq/) Meet your host I’m Julia — a Berlin local who loves bringing people together. My path went from growing up in a dance school to studying philosophy to working in IT support, and somehow all of that led me here: hosting meetups and creating spaces where people can show up, relax, and connect. Insta [https://www.instagram.com/juwaberlin/](https://www.instagram.com/juwaberlin/) LinkedIn [https://www.linkedin.com/in/julia-waehnert/](https://www.linkedin.com/in/julia-waehnert/) About The Social Butterfly Club 🦋 is a Berlin-based community that has been bringing people together for over three years. Each gathering is part of a larger framework designed to help friendships grow through shared experiences in the city — with a long-term vision of turning Berlin itself into a shared, playful experience. Love the vibe? There’s a whole community waiting for you. 🦋 Join the Social Butterfly Club and experience Berlin together [https://socialbutterflyradar.substack.com/](https://socialbutterflyradar.substack.com/)

Join us for a thrilling and empowering Martial Arts Training hosted by the **Juk Cheon Do** \- Self Defense and Martial Arts group\! Our monday training is focused on **Grappling.** This event is perfect for adults looking to enhance their self-defense techniques, improve fitness, and learn this unique Korean German Martial Art. Whether you are a newbie or have experience in MMA Mixed Martial Arts, BJJ, Judo, Wrestling or Sambo, this training will offer valuable insights and practical training exercises to bring your skills to another level. Get ready to boost your confidence, strength, and agility while embracing the physical and mental challenges of this martial arts training and enjoy this fantastic opportunity to make new friends within the community of like-minded individuals who share a passion for martial arts. We are not a huge group and like to train in a nice atmosphere with each other. Everybody is welcome weather you are a total beginner or experienced martial artist, weather your are top fit or you want to be it. Don’t be afraid and never forget, everybody starts at one point as a beginner. Important is the will to start. So no excuses! Start today! And of course we are also open to females, males and whatever. Here everybody is equal to share the same fun and pain. ;) Languages: German, English, Korean, Japanese. If the door is closed or you can’t find us, please call me: 01781830004 !

**Hi Ceph Berlin Meetup Cephalopods !** Let's get in touch and meet again in Berlin ! As always, it's about exchanging ideas about Ceph, what Ceph is, the latest developments in the community, and what you do or plan to do with Ceph. Please, check the themes list below for what you want to add - let me know or let's discuss it in the \`discussions\` or via \`chat\`. However, don't be shy - we all learn although some of us may be more experienced and those will be the source of your learning and experience. **We have for the actual themes this round (for now):** **Ceph intro for newbies ( 17:50 - 18:40 ): This is \*before\* the main meetup.** * What is Ceph - Ceph intro for newbies - watch out for additional invite, published separately **Main meetup ( 18:50-20:50 or longer ):** * perhaps, Ceph Days London results * no specific themes yet - please suggest or volunteer !!! * anything that's on your mind about Ceph **A little bit of housekeeping upfront:** * there will be no recording * presentations will be shared - if there are some and if it's possible * drinks and food is up to the participant :-) - so feel free to take your favorite drink and snack - we can arrange some beverage * if you have something to bring to the venue and share - food is always welcome ⇒ but check for the number of people planning to attend in person * **as we did at some time in the past too, perhaps plan for a beer/somethingElse (or two) as the "after-show" in the area around the location** **Any changes required ? Anything we should do differently ? Do you want to suggest a better time ? Any thoughts and suggestions are welcome.** Somebody has room for us and wants to offer a location to meet - let us know, the \`discussions\` is the place to do this. Since the location for in-person might be not shown, here it is: **Red Hat, ℅ Design Offices,** **Leipziger Pl. 16, 10117 Berlin** **We'll meet on June 29th 2026 in front of the main entry facing the Leipziger Platz, between 18:40-18:50, so please be on time or give me a call on +49-160-92654111 in case you're late.** **Important: Give me a call if you are late ! You cannot enter the building or come to the office on your own.** Watch out for somebody with a red hat. **Please, RSVP before Sunday 28th 2026, so that we can learn how many people will join.** See you soon ! Matthias.

A cozy afternoon for migrant mamas and daughters. We will **create a small zine** where we collect our **migration and family stories**. For more information and registration: [tally.so/r/dW6Y8V](tally.so/r/dW6Y8V) Ein gemütlicher Nachmittag für migrantische Mütter und Töchter. Wir **basteln ein kleines Büchlein**, in dem wir die Geschichten unserer **Migration und Familie** festhalten. Für weitere Infos und Anmeldung: [tally.so/r/dW6Y8V](tally.so/r/dW6Y8V)

Andere drücken die Schulbank, wir aber wollen in gemütlicher (und realer) Atmosphäre wieder aufeinandertreffen und einen Deutsch-Spanisch-Tandemkurs aufleben lassen. Beim einfachen Zusammenkommen und kennenlernen lässt es sich schließlich viel effektiver lernen. und Spaß haben. ...

THERAPEUTISCH ❤︎ Asana Basics THERAPEUTISCHES YOGA mit monatlichen Fokus: JANUAR ❤︎ Asana Basics FEBRUAR ❤︎ unteren Rücken MÄRZ ❤︎ Schulter, Nacken, oberer Rücken APRIL ❤︎ Schulter + Asana Basics MAI ❤︎ unteren Rücken ... REFERENZEN 'Ich wollte Dir/ Euch auch nochmal für die tollen Stunden danken! Ich habe Skoliose und ein Myofasziales Schmerzsyndrom in der linken Schulter und kann mir (seitdem ich bei euch Yoga praktiziere) den Gang zum Physiotherapeuten sparen! Das hat seit einigen Monaten wirklich mein Leben verändert und dadurch habe ich auch weniger Schmerzen/ Stressrelease - danke dafür! <3 Liebe Grüße, Sophia'

Du möchtest neue Menschen kennenlernen, dich mit Gleichgesinnten austauschen und einen inspirierenden Sommerabend erleben? Dann komm zum Sommerfest der Berliner Rhetorikmeister am 29. Juni im Preußenpark. Unser Sommerfest ist ein offenes Parkevent mit Bühne und einem abwechslungsreichen Programm rund um Kommunikation, persönliche Entwicklung und gemeinsames Wachstum. Im Mittelpunkt stehen die Menschen: neue Kontakte, ehrlicher Austausch, gegenseitige Inspiration und ein starkes Netzwerk. ## Das erwartet dich ### Menschen kennenlernen und vernetzen Triff offene, neugierige und engagierte Menschen aus ganz Berlin. Tausche dich aus, entdecke neue Perspektiven und knüpfe wertvolle Kontakte. ### Eröffnung durch Shuying Lu Shuying Lu, unsere VP Mitglieder, organisiert das Sommerfest und eröffnet als Präsidentin des Tages das Bühnenprogramm. ### Überraschungsredner Erlebe eine kurze Rede von einem der besten Redner aus der Berliner Toastmasters-Community. ### Mini-Workshop mit Friederike Galland Friederike ist Europameisterin bei Toastmasters und Rhetorik-Trainerin. In ihrem 15-minütigen Workshop gibt sie kompakte und direkt anwendbare Impulse. ### Spontan ans Mikro – Stegreifrede XXL Moderiert von Michael Okada, Deutscher Meister 2026 bei Toastmasters und Autor. Du bekommst eine spontane Frage und kannst dazu eine Rede von 1–2 Minuten auf der Bühne halten – ohne Vorbereitung und ohne Skript. Das Format ist locker, lebendig und auch für Einsteiger geeignet. Innerhalb von 60 Minuten gibt es bis zu 30 Redeplätze. Jeder kann teilnehmen, wenn er will. Niemand wird zum Reden verpflichtet. ## Ablauf **18:00 Uhr – Ankommen und Kennenlernen** Begegnungen, Gespräche und entspanntes Netzwerken im Park **19:00 Uhr – Beginn des Bühnenprogramms** * Eröffnung durch Shuying Lu, Präsidentin des Tages * Überraschungsredner * Mini-Workshop mit Friederike Galland * Pause * Spontan ans Mikro – Stegreifrede XXL Danach: gemeinsamer Ausklang, weitere Gespräche und neue Kontakte. ## Für wen ist die Veranstaltung geeignet? Für Toastmasters-Mitglieder, Gäste, Freunde, Rhetorik-Interessierte und alle Menschen, die Lust auf Austausch, persönliche Entwicklung und ein inspirierendes Netzwerk haben. 📍 **Ort:** Preußenpark, Berlin 📅 **Datum:** 29\. Juni 🕕 **Ankommen und Kennenlernen:** 18:00 Uhr 🎤 **Beginn des Bühnenprogramms:** 19:00 Uhr ## Links und Kontakt ☀️ **Sommerfest-Website:** [https://brm-sommerfest-2026.netlify.app/](https://brm-sommerfest-2026.netlify.app/) 🎤 **Informationen über unseren Club:** [https://www.brm-toastmasters.de/](https://www.brm-toastmasters.de/) 💬 **WhatsApp-Gruppe für Austausch und aktuelle Informationen:** [https://chat.whatsapp.com/KoGk3ISnoDV5zbrmx1IG8U?mode=gi_t](https://chat.whatsapp.com/KoGk3ISnoDV5zbrmx1IG8U?mode=gi_t) Lerne Menschen kennen. Wachse gemeinsam mit uns. Und feiere einen besonderen Sommerabend im Park.

Zur Aktionswoche gegen Einsamkeit des [Kompetenznetzwerks Einsamkeit ](https://kompetenznetz-einsamkeit.de/aktionswoche)veranstalten wir von [platoniq.health](https://www.platoniq.health/de) ein kostenloses und unverbindliches Walk & Talk Format. Begleitet von kleinen wissenschaftlichen Einblicken und psychologischen Impulsen spazieren wir gemeinsam im Treptower Park und tauschen uns über das Thema Freundschaft und Einsamkeit aus. Eingeladen sind alle, die sich für das Thema soziale Beziehungen interessieren.

**If the event is fully booked, feel free to join us at the meeting point.** A participatory urban walk exploring memory, monuments, architecture, and hidden narratives in public space through observation, storytelling, and photography. We will move slowly along Karl-Marx-Allee, treating the city as a layered archive of perception. Through guided observation exercises and short reflective prompts, participants are invited to explore how urban space is read through personal experience, collective memory, and everyday traces. This is not a tour, but a collective reading of the city. No prior experience required. **Materials:** smartphone, paper, pen, optional audio recording **Participation:** Participation by voluntary contribution (5–15 € suggested) **Meeting point:** Karl-Marx-Büste (https://de.wikipedia.org/wiki/Strausberger_Platz#Karl-Marx-B%C3%BCste), Berlin ([Strausberger Pl. 12, 10243 Berlin](https://maps.google.com/maps?vet=10CAAQoqAOahcKEwi4l8-__c-UAxUAAAAAHQAAAAAQJg..i&sca_esv=080e5c4976d32afe&pvq=OhUweDA6MHgzOWMxOWFkN2Y5ZDg2ZTY&fvr=1&cs=0&um=1&ie=UTF-8&fb=1&gl=de&sa=X&ftid=0x47a84e3e065a95dd:0x39c19ad7f9d86e6)) **Collective Archive (optional contribution):** Participants are invited to contribute to a shared archive of the walk: Upload here: https://padlet.com/denkmallab/Building_Stories_Memory_Walk_Contributions Contributions are voluntary and may include photos, notes, or audio fragments from the walk and are part of a collective open research experiment

Join us for our second hike of the summer! We will start by meeting at (or at least boarding) the **10.40 RE2 (3112)** at **Ostkreuz** station, **Platform 1**. We will arrive at Lübben (Spreewald) at 11.25. *Note that if you miss this train, then the next one does not arrive until 11.56, so you will certainly miss us and won't be able to catch up!* The hike will go from Lübben to Schlepzig, along the canals and lakes of the beautiful Spreewald region. *(See photos for a rough route -- this is not necessarily accurate!)* The walk will be about 15 km and take about 4-5 hours. Bring lunch, snacks & water, comfortable walking shoes, and maybe even some sunglasses. We will stop a couple of places along the way, but will not stop long enough to order food, so bring your lunch! At the end of the walk, in Schlepzig, there is a Whisky brewery and a Biergarten. We will visit one or both. You can also get food at both. Then, we will take the 18:57 bus back to the starting point of Lübben Bahnhof. From there, we will catch the 19.34 RE2 (3129) back to Ostkreuz, arriving at 20.23. *(If you really want to, and if we get to Schlepzig in time, then you can also take the 16.52 bus to Lübben, then the 17.34 RE2 back to Berlin.)* **Note: We will reschedule this if the weather is too rainy. So definitely check back here before going!**

Every first Friday of the month (except January), people from diverse disciplines and cultures meet to share experiences, business contacts and wine. **AGENDA**: 1. Boarding time: 18.00-18:30 2. Intro-Round 1-2 min p.p. and "Book of the month" 3. Pause 4. Part 1: The Owner Trap: How to finally Step Out of Your Own Business by Milap Singh 5. Pause 6. Diskussion-Round finish the wine and network \*\*\* **DETAILS**: From Founder-Dependent to System-Driven - A2 - Hour Workshop Sprint Is your business running you, instead of the other way around? If you are a founder or small business owner who can't take a week off without things falling apart - this session is for you. In just two hours, we'll use a hands-on Service Blueprint sprint to map how your business actually works, identify hidden bottlenecks and build a clear plan to run it without you in the loop for every decision. No slides. No theory. Just sticky notes, honest conversations and a map of your business you can immediate act on. This workshop is for you, if you are: A service-based business owner (agency, studio, salon, clinic, coach) with a small team A founder who feels like the business would stop if you stepped away for two weeks A startup operator ready to move from "figuring it out" to build repeatable systems. Facilitated by Milap - Founder of Aspire Digital Design Agency, UX Researcher & service Designer based in Berlin. Connect with Milap on Linkedin: https://www.linkedin.com/in/singhmilap \*\*\* All events are free of charge. Please bring Wine/Snacks instead

You don't have to sign up-just stop by. Tea, coffee, water, beer, wine, and pizza will be available throughout the evening. --- -- Most conversations about AI skip the part that is crucial: **who it's built for, who pays for it, and who doesn't get a say**. ​This evening goes exactly there. ​We start in 1960s California, where scientists bred a new kind of tomato: square, hard, machine-ready, and wiped out 82% of the state's tomato farms in the process. Farmworkers and small farmers sued the university behind the technology, arguing they were being forced to fund their own replacement. They lost. But the questions they raised never went away. Today, researchers are using AI, robotics and gene editing to create tomatoes that can be pollinated by robots, crops designed for automated production systems, and even new traits engineered for consumer preferences. AI is having an impact on agriculture, food production, and labour, often with public money, rarely with public input. Sounds familiar? ​**What to expect** ​A 90-minute interactive evening: * ​**Opening talk** connecting the tomato harvester story to today's AI developments * ​**Live audience polling** * ​Conversation with **Ildi Carlisle-Cummins** (California Institute for Rural Studies): storyteller, oral historian, and director of the Cal Ag Roots project, one of the organisations that grew out of the original lawsuit * ​Open audience **discussion** * ​**Informal networking** to close ​**What you'll take away** ​A sharper way to think about who controls the technologies influencing our food, our work, and our world, and what citizens can actually do when change feels inevitable. If the phrase "square tomato" sounds too strange to be true, you're not alone. Even the TV detective [Mr. Monk couldn't believe his eyes](https://youtu.be/VtO-97pl7cA?is=VnMxtacAwL1IChub)! **​Free to attend, free of jargon, no expertise required.** **Just bring your curiosity.** ​*Hosted by [Save Our Seeds](http://www.saveourseeds.org/?utm_source=luma) and [Human-Future-Hub](https://humanfuturehub.org/?utm_source=luma) Berlin* Tea, coffee, water, beer, wine, and pizza will be available throughout the evening.

Event name: **The Nudes of Istanbul** — Photo Exhibition **Opening / Fotoausstellungseröffnung** Start: Fri, Jul 3 19:00 End: Fri, Jul 3 21:00 **Location:** Die Akt Galerie Krossener Str. 34 10245 Berlin Germany **Description:** ENGLISH The Nudes of Istanbul is a group exhibition and accompanying English-language photobook presenting a fourteen-year collective fine-art nude photography practice developed in Istanbul and brought into public view in Berlin. Curated by Berlin-based photographer and curator Burak Bulut Yıldırım, the project brings together 14 Turkish photographers selected from a sustained curator-directed studio practice in Istanbul. Five of the participating photographers are women. The accompanying book includes texts by three model-authors writing from inside the practice: Zeynep Renda, Su Yeşil and Marmelat. The works were made in Istanbul over the last fourteen years through real bodies, real light, constructed sets, physical materials, model presence and explicit consent. The exhibition is not presented as a general exhibition about Turkey, but as a public record of a long-term collective photographic practice from Istanbul. This Meetup is for the opening evening. **Opening:** Friday, 3 July 2026, 19:00 **Exhibition dates:** 3–19 July 2026 Regular gallery hours: Friday–Sunday, 15:00–19:00 **Venue**: Die Akt Galerie Krossener Str. 34 10245 Berlin **Admission**: **Free** Project page: [https://burakbulut.org/the-nudes-of-istanbul/](https://burakbulut.org/the-nudes-of-istanbul/) DEUTSCH The Nudes of Istanbul ist eine Gruppenausstellung mit begleitendem englischsprachigem Fotobuch über eine vierzehnjährige kollektive Praxis künstlerischer Aktfotografie aus Istanbul, die in Berlin öffentlich sichtbar wird. Kuratiert von dem in Berlin lebenden Fotografen und Kurator Burak Bulut Yıldırım, bringt das Projekt 14 türkische Fotografinnen und Fotografen zusammen, die aus einer langfristigen, kuratorisch geleiteten Studiopraxis in Istanbul ausgewählt wurden. Fünf der teilnehmenden Fotograf*innen sind Frauen. Das begleitende Buch enthält Texte von drei Modell-Autor*innen: Zeynep Renda, Su Yeşil und Marmelat. Die Arbeiten entstanden in den vergangenen vierzehn Jahren in Istanbul: mit realen Körpern, realem Licht, konstruierten Sets, physischen Materialien, Modellpräsenz und klarer Einwilligung. Die Ausstellung versteht sich nicht als allgemeine Ausstellung über die Türkei, sondern als öffentlicher Einblick in eine langfristige kollektive fotografische Praxis aus Istanbul. Dieses Meetup bezieht sich auf den Eröffnungsabend. **Eröffnung**: Freitag, 3. Juli 2026, 19:00 Uhr **Ausstellungsdauer**: 3.–19. Juli 2026 Reguläre Öffnungszeiten: Freitag bis Sonntag, 15:00–19:00 Uhr **Ort**: Die Akt Galerie Krossener Str. 34 10245 Berlin **Eintritt**: **frei** Projektseite: [https://burakbulut.org/the-nudes-of-istanbul/](https://burakbulut.org/the-nudes-of-istanbul/)

**The Stammtisch will be at “FLAX”** in Prenzlauer Berg. We don't have an agenda for this event. Instead, it's just an opportunity to meet other members in a nice social atmosphere, and to take a mid-week break. We try to watch out for new people, but if no one greets you, please just ask someone. We're quite a large group, so usually make up most of the people at the Bar. Don't be shy, we're a friendly group! This event repeats every two weeks.

This presentation will be by Ben Iten, humanist chaplain and HCCO Board Member. Speaking on expressing Humanism values in American democracy. This meetings will be hybrid. You can meet us in-person or attend online. The formal presentation will start at noon. Food and drinks will be provided at the event. Feel free to show up a little bit early to hang out and talk. The Humanist Monthly Program is our longest running event and still a community favorite. In the old days it used to be called "Going to HCCO" and we still like to think of it as our flagship event. Join Zoom Meeting [https://us02web.zoom.us/j/87836564953?pwd=4Mi57ElZkDIFlb1fnlNwOJ0NiOK4tP.1](https://us02web.zoom.us/j/87836564953?pwd=4Mi57ElZkDIFlb1fnlNwOJ0NiOK4tP.1) Meeting ID: 878 3656 4953 Passcode: 760812 One tap mobile +19292056099,,87836564953#,,,,\*760812# US (New York) +13017158592,,87836564953#,,,,\*760812# US (Washington DC)

Our next much-awaited **COLUMBUS** meetup is **Tuesday June 30th from 7-10 pm EST at ACE OF CUPS**. Meet patients, cultivators, processors, dispensary managers/staff, physicians, home growers, educators, activists, nonprofits, artists, attorneys, business owners, writers, students, and supporters to network, share our knowledge, collaborate, support each other and make new ones! Hope you will be there too! Save the date and pass the word. **Please RSVP** so we know who is coming and how many to expect. Find us to say hi and we will introduce you to others. We should be easy to spot. (The happy-looking group wearing cool nametags! See photos from our past events.) Sign in, grab a name tag, start your own bar/food tab, meet old friends and make new ones! Everyone is welcome. SEE YOU THERE!

Join us as we get together to get together to help those in need at this CMG Gives Back event! We have a great little community of Movie Group friends so rather than see a movie this time, we’ll help “Create a better world” by helping serve those in need. NOTE: We’re switching it up this time and going with a DINNER shift on Mon, 7/6. Here are complete details and our plan for this event: FAITH MISSION – GRANT KITCHEN: The Faith Mission kitchen and dining room serves residents 3 meals a day, every day of the year. For this event, our group will help prepare food, serve meals, assist residents in the dining room, wash dishes, and clean surfaces. PLAN: We will be preparing / serving / cleaning for DINNER from 4:30 to 6:30pm and have space for a total of 7 volunteers. Please arrive at 4:20pm and wear closed-toe shoes and long pants. LOCATION: Faith Mission – Grant Kitchen is located at 245 N. Grant Ave. Enter the kitchen at Dock 1 (in the back of the building), indicated in the attached map. On-site parking in the adjacent lot and street parking are available in the surrounding area. Below are some links / attachments with additional info/details: IMPORTANT REMINDER: Our group will be providing all of the volunteers on this day so a firm RSVP count is essential. Please only sign up if you are certain you’ll be able to attend. If something unavoidable comes up, please try to update your RSVP no later than one week prior to the event. With few exceptions, no shows or cancelations within 1 week of the event will not be eligible for future CMG Gives Back events. I appreciate your understanding as we try to ensure the agencies have the volunteers needed to provide the essential services they provide to the vulnerable population they serve. Our Partner Agency for this event is Lutheran Social Services! A huge THANK YOU to those volunteering at this (or any of our previous or future) CMG Gives Back events! Look forward to seeing you there, Dan

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: This month Chris Pazsint will be talking about Agentic Coding. How does one use CLI Based Agents, and Agentic IDEs such as Cursor, Kiro, Antigravity? How to include agentic coding plugins for IDEs you already love such as Visual Studio Code. We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com

**Don’t miss your opportunity to learn from a duo with over 16 years of experience combined. During this demonstration event, you can expect to learn how to direct and guide your creative vision through lighting and communication to your model. We guarantee you will leave this event feeling more confident to try new lighting set ups to match up with your anticipated outcome. Finding the right way to express your vision is key to getting your model to pose accordingly, so we got you there too! To take this even further, think about signing up for a tutorial spot following the demonstration.** ***Note: this is a demonstration event only, you will not shoot your own images. However, if you bring your camera we can test it for compatibility with the studio lights.*** **Following the demonstration will be a tutorial/coaching event - sign up separately if you are interested at** https://calendar.app.google/ZcHb4CQB2rrV3U7j9 **Save and book both for $199 (discounted from $215; the discount will be applied on the Tutorial invoice).**

You can sleep in on the Sesquicentennial (observed), we’re shifting to the following Friday. But join the local UX community for a chat and some biscuits to catch up. If you were in CA for Figma Config, tell us all the lines and you can tell me how I can animate an SVG without coding it by hand, and why I’d even want to. Thanks to the team at Nationwide of supporting the group.