Nanotechnology

**For English see below** **Treffpunkt:** w3.hub, Möckernstrasse 120, 10963 Berlin 2\. OG\, hinterer Bereich **Unsere Eventreihe hat die Themen:** Die folgenden Workshops sind immer kostenlos und auf die gesamte Eventreihe verteilt. Wir werden es dir auch ermöglichen, dass du zu jedem Zeitpunkt in die Eventreihe einfach einsteigen kannst. Die Eventreihe endet mit dem letzten Termin, aber sie wird danach sofort von vorn beginnen und wir werden das Datum der Events dann anpassen. * 12.01.: Was ist Bitcoin eigentlich? * 26.01.: Workshop: Bitcoin senden und empfangen * 09.02.: Workshop: Bitcoin/ Bitcoin Passwort (Seed) sicher aufbewahren * 23.02.: Wo man Bitcoin kaufen könnte und auf was man achten sollte * 09.03.: Workshop: Bitcoin in Sekunden versenden (Lightning) * 23.03.: Bitcoin vererben * 06.04.: Warum nur Bitcoin - nicht Crypto * 20.04.: Workshop: Bitcoin spielerisch verstehen **Kontakt zu BBW:** * Telegram: https://t.me/+8nEA93930qowODky * Nostr: Bitcoin Beginner Workshops / npub1qtc6zmhaq6svkuny3r5h3n6wxel5cyzmwz7haygans36ee60l7vqgk2sxp **Anmeldungen:** Diese sind nicht erforderlich. Sollte es zu voll werden, werden wir aber Personen mit einer Anmeldungsbestätigung Vorrang geben. Teilt uns in eurer Anmeldung lediglich die Anzahl der Personen mit - keine weiteren Infos erforderlich: * meetup.com * Email: bbw@bitcoinexplained.de * Telegram: https://t.me/+8nEA93930qowODky * oder mündliche Absprache mit den Organisatoren für Folgeevents **Video** Dieses Event wird nicht aufgezeichnet und auch nicht irgendwo danach online verfügbar sein. **English** This event here is in German. The event "[ENG] Bitcoin Beginner Workshops - Explore Bitcoin" is in English and can be found under this link: https://www.meetup.com/bitcoin-lab-berlin **Privatsphäre** Die Teilnahme bei diesem Event verpflichtet dazu, dass die Privatsphäre von allen Personen gewahrt wird. Es dürfen keine Aufnahmen jeglicher Art gemacht oder verbreitet werden, wenn Personen dabei erkenntlich sind. Das bezieht sich auf das Event ansich, die Zeit davor und danach.

=== THE TOUR === On Easter Monday, we will drive to Stechlinsee for a swim and a picknick on the lake. We will depart at 10:00 (sharp) and drive to a parking space near the lake. From there it is a 10 minute walk. Return time of 17:00 is an estimate. The fishery will be open. The pizza shop on the maybe. === WHAT TO BRING === • Swimming wear, towls, etc. • Water, drinks and food • Good mood • 5 Euros for fuel and parking fees === NO-SHOW POLICY === I enforce a zero-tolerance policy on no-shows and last-minute cancellations. If you RSVP and don't show up, you will be removed from the group. If your plans change, please cancel early enough to make your seat available for someone else.

Dear friends, Join us for a gentle hike if you enjoy both walking in the forest and meditating. We’ll take a 2-hour walk in Grunewald and have a meditation practice along the way. The practice is suitable for everyone, regardless of meditation experience. It’s a beautiful way to connect with nature, calm the mind, experience serenity, and have a good time with others. 📍**Meeting point:** [https://maps.app.goo.gl/gkvVTaZisA73RsRn7?g_st=ic](https://maps.app.goo.gl/gkvVTaZisA73RsRn7?g_st=ic) Please use this exact location - it’s a parking area next to Teufelsseestraße 21, 14055 Berlin. **🗓 When: Monday, 6 April** **10:00 - 13:00** Please arrive before 10:00. We will wait a maximum of 10 minutes for latecomers. The hike will take approximately 2 hours, and the meditation practice will last about 30 minutes. We will return to the starting point by 13:00. **🎟️Participation is donation based:** Feel free to donate any amount you like. **What to bring:** \- Wear comfortable shoes and clothes; please check the weather beforehand \- A water bottle \(water or tea\, as you prefer\) \- If you’d like\, bring something to sit on \(a small pillow\, cloth\, or anything comfortable for sitting in nature\) We love nature and meditation - and maybe you will too! Oneness Berlin Jazgul, Florian & Carla

Basketball practice with time to train and play against each other, mostly self-organized

Join us for a writing on the train trip to Lutherstadt Wittenberg (1hr 27m). Leave Berlin Hauptbahnhof at 10:40am, Platform 2 - B Arrive Lutherstadt Wittenberg Hbf at 12:07pm, Pl. 4 Once there we'll walk for a bit, find a cafe. We'll return on the train at 14:52 to Berlin, arriving at 16:19. Feel free to also read on the train.

**!! Please be aware that from now on, we rehearse at a NEW location !!** **Kaiser Friedrich GedächtnisKirche, Händelallee 20, 10557 Berlin- Tiergarten (S3/5/7/9-Tiergarten, U9 Hansaplatz)** Have fun! Live your joy! And get energized! Every 2 weeks, the choir (not only) for shy people "Shabach! Berlin" rehearses in Berlin-Tiergarten / Moabit. Joining is possible at any time. 🎶 Unleash Your Inner Songbird! 🎶 Have you ever found yourself humming along to your favorite tunes, secretly wishing you could belt out those notes with confidence? 🎤 Well, guess what? You absolutely can! 🌟 Join us for a musical journey like no other – where your doubts about singing are left at the door and your love for music takes center stage! 🎵 Our choir is a vibrant community where EVERYONE is welcome, especially those who think they "can't sing." But trust us, you CAN! 🌈 Get ready to feel the electrifying energy as we dive into the world of Modern Gospel and guided vocal exercises. 🎶 No prior musical experience? No problem! Our free trial lessons are tailored for beginners and seasoned singers alike. 🎵 And once it gets the better side of you and you can't stop the beat, you can even join us and become a permanent member! So, it's time to rediscover the joy of singing and unlock the full potential of your voice. 🌟 Join us and watch as your confidence soars higher than ever before! Don't miss out – reserve your spot today and let your inner voice shine! ✨ Men and all the hesitant ones: don't worry, it's the same for everyone ;) So bring your partner, friends, family and/or acquaintances and share the fun! **More info at: https://shabach.rocks**

This is a board game night for you to meet up and play in a relaxed and respectful environment. The event is exclusively for people who identify as FLINTA\* (women, lesbians, intersex, non-binary, trans and agender). We play casual and family games as well as strategy games and heavy euros. **General information** Come alone or bring your friends. There will be some games and snacks on site, but you’re also welcome to bring your own. We’re especially happy to welcome people who enjoy explaining rules. Board game designers are warmly invited to bring prototypes! Dogs are only allowed in exceptional cases and with prior approval from the organizing team. Please read and respect our code of conduct. We speak both German and English. Free entry – donations (1 to 5 €) welcome. All information and our code of conduct: https://flintastisch.de/flinta-spieletreff-berlin/ **Accessibility details** The venue is wheelchair accessible and suitable for people with limited mobility. Unfortunately, the toilet is not accessible. If you require a support person due to a disability, but your companion is not FLINTA\*, please contact us in advance at mail@flintastisch.de The same applies if you would like to bring an interpreter. Companion, support, and assistance dogs are welcome. Please let us know in advance at mail@flintastisch.de

Welcome to Sunday Tech Coffee. This is a **networking** event for those in the tech industry in Berlin. We are usually inside and to the right. Ask the barista/bartender if you can't find us.

🚀 Workshops: The Human-Digital Synthesis **Kultur\-Technik 2026 \| Women in Big Data Berlin** AI is no longer a future concept—it is already reshaping how we work, create, and make decisions. The real question is: **how do we use it intelligently?** *Kultur-Technik 2026:* *The Human–Digital Synthesis* draws from the European idea that technology is an extension of human culture. In this interactive session, we bring together the Women in Big Data Berlin community to explore how humans and AI will collaborate, build, and evolve together. This is not a passive event— it’s a space to **learn, discuss, and create together.** The event is hosted by **Ojin AixHaus.** Ojin AixHaus is the new, collaborative community space in Berlin Mitte, where scientists, machine learning engineers, founders, creators, and AI enthusiasts come together to build and learn about the future of AI. Ojin AixHaus is free to join, open for startups in residency applications and is currently curating their 2026 events calendar. If you have a burning idea for an event, meetup or hackathon - bring your fire, they bring the space! **💡 Event Details 💡** **1\. Choose and Participate Your Workshop \(60 mins\)** Participants will get to choose and join one of two parallel tracks onsite, and co-create a “chapter” for the final showcase. 🧠 **TECH TRACK: Collective Intelligence & AI in Companies** Facilitator: Dr. Katarzyna Stoltmann Co\-Founder\, Women in Big Data Berlin \| Head of Data Science & AI How do companies truly get the best out of AI? The answer: **collective intelligence**. This session explores: * What collective intelligence means in practice * Which tasks and roles will evolve with AI * Whether AI replaces work—or creates new opportunities ✍🏼 Hands-on focus: Designing end-to-end AI solutions at scale—thinking through how humans and AI systems collaborate to deliver impact for millions of users. 🖼️ Output: A conceptual demonstration of a **“context-aware agent architecture”** 🌟 **IDENTITY TRACK: Visibility & Personal Branding in the Age of AI** Facilitator: Angeley Mullins Founder & CEO, Aetheris Ventures In a world where content and ideas can be generated at scale, how do you stay **visible, credible, and distinctive**? This session explores: * How to position your *human voice* in an AI-driven landscape * What defines authenticity and value in 2026 * How to use AI as a co-creator, not a replacement ✍🏼 Hands-on focus: Define your personal narrative, identify your unique “signal,” and build a strategic approach to visibility through guided exercises and peer exchange. 🖼️ Output: A **“Visible Self Prototype”**—your personal positioning, key content angles, and a simple plan to build credibility and presence in an AI-shaped world **2\. Grand Finale: The 2026 Showcase \(45 mins\)** We come together to share insights from each group: * Tech track presents the “Brain” (AI Agent concept) * Capabilities track presents the “Voice” (Personal Brand & Visibility Strategy in the AI era) We will have networking afterwards where you can continue sharing your ideas! 🗓 **Date: 9 April 2026** **⏰ Time: 18:00 – 21:30** **📍 Location: Ojin AixHaus \| Chausseestraße 36\, 10115 Berlin** Why do we need these workshops? Because AI is moving so fast! - and so should we. Join us to: * Understand AI beyond the hype * Learn how to use it strategically and responsibly * Connect with a community shaping the future 👉 **Choose your track. Join the conversation. Build what’s next. We look forward to seeing you next week!** Find out more here: [Ojin AixHaus Community ](https://ojin.ai/community) Follow Ojin AixHaus on socials: [Instagram](https://www.instagram.com/ojin.ai/#) [Linkedin](https://www.linkedin.com/showcase/ojin-aixhaus/) [X](https://x.com/Ojin_AI)

Hola chicos, Moin zusammen, lasst uns Deutsch und Spanisch sprechen und ein paar Bier zusammen trinken, die Idee ist einfach und gut :) Bitte bringt zumindest basis Deutsch oder Spanisch Kenntnisse mit! Vamos a hablar español y alemán y tomar unas cervezas, la idea es simple y buena jaja. ¡Por favor, ven por lo menos con un nivel básico de español o alemán! Danke, gracias!

**BitDevs Bitcoin Socratic Seminar Berlin @ c-base Raumstation** Join us for our monthly interactive **[Bitcoin Socratic Seminar](https://bitdevs.berlin)** in Berlin! We’ll start with pizza and beer (sponsored by [Ordimint.com](https://ordimint.com)), followed by deep-dive discussions on the most interesting *technical* developments in Bitcoin from the past month. Participation by everyone is highly encouraged! Our goal is to foster lively discussion, knowledge sharing, and debate. In the weeks leading up to the event, participants gather topics such as: * New research papers * New BIPs and BOLTs * Network statistics * Technical blog posts * Mailing list and Delving Bitcoin threads * Pull requests and updates from key repos (Bitcoin Core, LND, Core Lightning, Eclair, BDK, rust-bitcoin, LDK, Electrum, …) Each topic is briefly introduced by our moderators and then discussed before moving on. The full list of links will be published at [bitdevs.berlin](https://bitdevs.berlin) 1–2 days before the event — please review them in advance to get the most out of the discussion. **Important details:** * This event is highly technical — best suited for those with a solid grasp of Bitcoin internals. Curious newcomers are always very welcome, but expect in-depth conversations (see the former topics at [bitdevs.berlin](https://bitdevs.berlin)). * Chatham House Rule applies: you may share what was discussed, but not who said it. No livestream, no photos, no recordings. * The evening begins with food and networking; people often stay after the seminar to keep talking. **Co-hosted by:** * [Felix](https://x.com/FelixWeis) * [Freerk](https://x.com/freerko) * [Fabian](https://x.com/fjahr) For background on the idea of BitDevs Socratic Seminars, see [this article](https://bitcoinmagazine.com/articles/op-ed-want-to-learn-about-bitcoin-try-a-local-socratic-seminar).

As the title suggests, this is a **casual get-together** for the **[Tech in Berlin](https://www.techinberlin.com/)**[ ](https://www.techinberlin.com/)community — no talks, no slides, no agenda. Just conversations and connections with people who are building, learning, or curious about tech. Whether you're a founder, developer, product manager, designer, student, or just exploring the tech space in Berlin, you’re welcome to join. **What to expect:** * Relaxed, informal atmosphere * Opportunity to **make new connections** * Space to **vibe code together** (the café has great Wi-Fi) * Share what you’re working on and **get feedback or fresh perspectives** * Open conversations about tech, startups, ideas, or anything in between **No agenda. No pitches. No expectations.** Just show up, grab a drink, open your laptop (if you want). If you’re new to Berlin, new to tech, or just want to expand your circle — this is a good place to start.

Hello Berliners, Join us for an insightful discussion and networking as we delve into the world of Bitcoin, Bitcoin mining and the broader trends shaping the Bitcoin ecosystem (including L2 developments) and **hyperbitcoinization**. Event will be on the second **Thursday** of the month! **Event Format:** Our event will adhere to the **Chatham House Rules**, ensuring confidentiality and encouraging open discussion. This format will enable you to engage with our expert speakers, ask questions, and network after the panel while respecting the confidentiality of discussions. Whether you're a seasoned Bitcoiner or a curious newcomer, this event offers a unique opportunity to expand your knowledge and connect with like-minded individuals. **Networking & Refreshments:** Enjoy networking opportunities with fellow attendees while sipping on refreshing drinks and indulging in small snacks. Share your thoughts, exchange ideas, and forge connections in a relaxed and inviting atmosphere. Reserve your spot now. We look forward to seeing you there! Denis, Arnab and Irina

Wir bieten allen Interessierten die Möglichkeit, mit Elektronik zu basteln. Workshops und Vorträge zu verschiedenen Themen rund um Elektronik und Software sind willkommen. Von Arduino bis zu komplett selbst entwickelten High-End Schaltungen sind wir für alle kreativen Ideen offen. Wir haben auch Gruppen rund um das Nähen, Programmieren, Retro Computer. Wir treffen uns immer am Dienstag und am Freitag ab 18:00 Uhr. Egal ob Anfänger oder Profi – hier seid Ihr jederzeit Willkommen. Ihr könnt mit anderen fachsimpeln oder auch mit unserer Hilfe Eure ersten elektronischen Gehversuche starten. Wenn zeitgleich in den vorderen Räumen Workshops oder Vorträge stattfinden, kann hinten Werkstattbetrieb stattfinden.

Christians in Tech is a community at the intersection of faith and technology. Our meetups are designed to spark meaningful conversations, promote knowledge sharing, and encourage growth—both in your career and your spiritual walk with God. Whether you're an experienced professional or just starting your tech journey, CIT welcomes you. Our Website [https://linktr.ee/citcbus](https://linktr.ee/citcbus) Sponsors and Partners * Improving (Venue Sponsor) * Bethel World Prayer Center (Fiscal Sponsor) * Fruits & Roots (Coffee Partner)

AI is changing how art is made. But when does it stop being your work and start being the machine’s? This month we're going to be doing a panel with with digital image, music, and written word artists, talking about at what point, while using AI in the creation process, does the work become not the artist creation? We encourage audience participation during this event that will be moderated by Chris Slee. Whether you’re deep in the field or just getting curious, come connect with others building and exploring AI in Columbus. Sponsored by [Transform Labs](https://www.transformlabs.com/services)

NFT's are here to stay folks! This is a group for like minded people interested in understanding, leveraging, using, creating for, profiting from, trading too i suppose, NFT's.. everything around them, complexity, fear and exploits, best practices and more. **PLUS** This group will talk AI ART tools, techniques, artists, video, audio, prototypes and more in the AI assisted production space- ART specifically, but we can get into any aspect of some of the cooler things happening in AI in general.

If you are interested in selecting investment choices for your 401(k) or other workplace savings plan, minimizing your income tax liability, or identifying the most effective investments for your brokerage account, we are the group for you. We are a local chapter of Bogleheads**®**, whose investment strategy can be found here: https://www.bogleheads.org/wiki/Bogleheads%C2%AE_investment_philosophy Or you can peruse the Boglehead forum here: https://www.bogleheads.org/index.php I look forward to seeing you there. Mark Vonder Haar

Central Ohio Radio Enthusiasts—CORE—is an informal community for anyone enthusiastic or curious about radio—whether you're new to radio and want to learn or you've been tinkering for years and want to share. Ham radio operators, GMRS users, Meshtastic fans, software-defined radio nerds, makers, and technical and non-technical folks are all welcome. No experience required or expected. This month we have **WiFi HaLow: Introduction and Practical Use** with **Alex Barbur**. Details are are [core.radio](https://core.radio).

## Pickleball League \| Singles \| 20s\, 30s\, 40s \| Columbus\, OH Ditch the dating apps and meet singles in real life — on the courts for 8 weeks. This event is ALL done through Eventbrite, we must register in advance. [The link is here! ](https://www.eventbrite.com/e/pickleball-but-everyones-single-datecolumbus-tickets-1984560246119?utm-campaign=social&utm-content=attendeeshare&utm-medium=discovery&utm-term=listing&utm-source=cp&aff=ebdsshcopyurl) April 13th - June 1st. 6:00PM - 8:00PM. Monday Nights. Whether you’re a seasoned player or brand new, this league is all about connection. 👉 **Never played before?** No problem! For the first **three weeks**, instructors will be on-site for the first 30 minutes to teach you the basics and get you comfortable jumping in. We’ll run this as **open play** — you’ll rotate courts and partners for casual games and maximum mingling. Winners stay for one round before rotating, giving you plenty of chances to meet someone new. 📅 **Mondays\, April 13th \- June 1st \| 6:00–8:00 PM** 📍 **Paddle Taps** \| 535 Lakeview Plaza Blvd\, Worthington\, OH 43085 **⭐ May 4th — Best Dressed Night: Star Wars Edition** *May the Fourth Be With You!* Dust off your Jedi robes, break out the lightsaber, or go full Chewbacca. Come dressed up, bring your A-game, and may the force (and your dinks) be with you. Best dressed winner picked by the volunteer sqaud, Winner will receive a prize! **🍽️ May 25th — Memorial Day BBQ POST PLAY** End your Memorial Day weekend with pickleball and pickleball BBQ! Paddletaps will provide the burgers & hot dogs, you're welcome to bring your fav app or dessert to share with the crew! **What to Know** * Paddles available each week — or bring your own * Locker room on-site * Full restaurant + bar available * Play runs every Monday from 6:00–8:00 PM for 8 weeks * Eat, drink, and mingle during and after play * Tickets are **non-refundable** Ready to meet your pickleball partner (and maybe more)? 🎟[ ](https://www.eventbrite.com/e/pickleball-but-everyones-single-datecolumbus-tickets-1984560246119?utm-campaign=social&utm-content=attendeeshare&utm-medium=discovery&utm-term=listing&utm-source=cp&aff=ebdsshcopyurl)**[Sign up now — spots will go fast!](https://www.eventbrite.com/e/pickleball-but-everyones-single-datecolumbus-tickets-1984560246119?utm-campaign=social&utm-content=attendeeshare&utm-medium=discovery&utm-term=listing&utm-source=cp&aff=ebdsshcopyurl)** ### Event Guidelines 🚫 No rude or inappropriate behavior 📸 Photos may be taken for promotional use 📵 Be present — phones away, eyes up ✨ Be open, have fun, and enjoy the experience

Bring your Raspberry Pi, Arduino, microcontroller, or any other electronic project and join fellow electronics makers for a night of creativity and collaboration! This session is open forum to share your current projects—whether complete or in progress, it’s all interesting! Whether you’re deep into embedded systems, exploring new ideas, or just getting started, you’ll find a welcoming space to collaborate, share, and get inspired. **New to electronics or curious about tinkering?** You’re absolutely welcome. If you’re a beginner and want to experiment, I’ll have a couple of starter kits available so you can try things out—whether that’s blinking your first LED, putting something on a display, or experimenting with simple sensors. No pressure and no experience required—just an interest in learning and building. While we continue to pursue a more permanent venue for this Meetup, we’ll be using public library facilities based on availability. This session will be at the Worthington Park Library in the Olentangy Meeting Room.