Physics

Join our next meetup on June 25th! We will have 3 talks and will share some food and drinks while networking **Location:** Infrabel, Rue des Deux Gares 82, 1070 Anderlecht, Belgium **Agenda:** 17:45 : Doors open 18:00 - 18:40 : Drinks and pizza 18:40 - 18:45 : Welcome 18:45 - 19:00 : Elastic @ Infrabel 19:00 - 19:15 : Real life never-seen-before railway project 19:15 - 19:55 : From unknown and raw to real value 19:55 - 20.20 : What’s new in Elastic v9 20:15 : Wrap up **Talks:** **Elastic @ Infrabel** In this presentation, we will explain how Infrabel uses Elastic today and how it supports our current needs. We will briefly outline some future optimizations and the integration of OpenTelemetry to further strengthen and extend our Elastic platform. To showcase how we use Elastic for addressing real business use case, we will demo a never-seen-before application build in collaboration with Elastic Belgium. *Safia Souabi – Big Data Engineer at Infrabel* *Olivier-Désiré Muhimpundu – Big Data Engineer at Infrabel* **Real life never-seen-before railway project** *How Elastic helps ensure the punctuality of rail services by detecting and correlating events in real time to anticipate disruptions, ensure operational continuity and optimise the flow of rail traffic."* *Vanessa Coeurnelle – Cyber Resilience Data Analyst at Infrabel* **From unknown and raw to real value** In this talk, Chris shares how he transformed a legacy log ingestion pipeline into a structured, scalable, and insight-ready ELK-based system. Starting from loosely indexed XML/SOAP logs with minimal configuration, the project required rebuilding the data model to handle multiple message types, complex nested structures, and inconsistent field representations. Without the luxury of a full upfront redesign, Chris adopted an iterative, data-driven approach: combining exploratory analysis with dynamic mapping strategies to progressively shape the data into a usable format. He will discuss how this led to the design of flexible ingestion pipelines, including XML parsing, normalization, and generic handling of heterogeneous payloads. The talk also covers practical techniques for managing sensitive data, reducing storage overhead, and improving query performance—such as selective data retention, hashing and fingerprinting strategies, and the use of data streams. Finally, Chris will touch on how structuring the data effectively enables higher-level capabilities like anomaly detection and automated alerting. This session is aimed at practitioners dealing with messy, real-world data and looking for pragmatic ways to make Elasticsearch pipelines more robust, maintainable, and valuable. **Bios** **Christoph Evers** is a Senior Data Scientist and Data Engineer based in Brussels, with over 15 years of experience in data systems, search technologies, and analytics. He has been working with Elasticsearch since its early days, contributing to the project between 2010 and 2012 and applying it extensively as a search engine, document store, and log ingestion platform. At OpenLex, he designs and builds advanced data solutions for legal research, including full-text search engines, NLP pipelines for entity detection and anonymization, and large-scale analytics systems. His work also includes operating and optimizing ELK-based observability stacks in Linux and Docker environments. Previously, Chris held roles spanning software engineering, data science, and R&D leadership across sectors such as social media analytics, mobility and market research. His experience combines hands-on engineering with business-oriented data applications, delivering scalable systems and actionable insights for both startups and multinational clients. He mainly focuses on search relevance, data observability, and the practical use of ELK in production environments. **Olivier-Désiré Muhimpundu** is a Data Engineer at Infrabel, where he has been working for more than three years on large-scale data platforms and data projects. He holds an engineering degree from University of Mons Faculty of Engineering and a Master's degree in Artificial Intelligence. In his current role, Olivier focuses on designing, operating, and evolving enterprise data platforms based on technologies such as Apache Kafka, Elastic Stack, and Cloudera. His work spans data ingestion, real-time processing, monitoring, observability, and platform engineering in a large-scale railway environment. **Safia Souabi** is a Data Engineer with 6 years of experience at Infrabel in Brussels. With a BSc and MSc in Physics from London, she combines a strong analytical background with expertise in building and operating large-scale data platforms for mission-critical operational and asset data. Experienced with Apache Kafka, Elastic Stack, and the Cloudera ecosystem (Hadoop, Spark, Hive/Impala), she delivers scalable batch/real-time data pipelines and optimized ETL/ELT workflows. She works closely with stakeholders to translate requirements into reliable data products, with a strong focus on data quality, governance, security, performance, and platform resilience.

**Join us for a beautiful summer evening at Bozar Rooftop for the Casavillani Rooftop Sessions — a relaxed open-air gathering with house music, good vibes, drinks, food, and sunset views over Brussels. 🌆✨** Casavillani is bringing fresh house records and DJs to the rooftop, creating the perfect atmosphere to meet new people, enjoy the music, and spend a warm evening together above the city. Entry is free, but spots can be limited. 🎧💃🕺 **📅 Date: Thursday, 25 June** **🕕 Meetup time: 19:00** **📍 Meetup location: In front of Bozar, Rue Ravenstein 23, 1000 Brussels** **🎟️ Entry: Free** **🍹 Drinks & food: Available on the rooftop** Important note: I have not booked any table, private area, or reserved place for the group. This is an informal meetup where I simply bring people together to enjoy the evening as a friendly group. We will meet outside Bozar and go up together, but entry and space on the rooftop depend on the venue’s availability and rules. Everyone is responsible for their own drinks, food, and personal expenses. 😊 Come with good energy and an open mind — it’s a perfect event for socializing, dancing, and discovering one of Brussels’ nicest summer rooftop spots. 🌞🥂 Join the WhatApp group: [https://chat.whatsapp.com/EimXMXyRBjo7PfHRoVc1j7](https://chat.whatsapp.com/EimXMXyRBjo7PfHRoVc1j7) Personal number: 0471695419

Socializing and Networking 🛜🆕 at PLUX on Thursday. Making new friends and drinking 🚰🎈🎉🚿🌊. Everybody Welocme, locals, expats or new 🆕 in town.

Making the new Friends after work or in your vacation.

* Understanding why native AD tools fall short in change tracking * Tracking who changed what, when, and from where in real time * Detecting unauthorized or suspicious changes instantly * Simplifying forensic investigations with detailed audit trails * Strengthening accountability with actionable insights

Shake off the workday and train with a welcoming crew of internationals and Brussels professionals. This is a **co-hosted session with F45 Brussels**—fast, fun, and coached circuit training that fits perfectly after work. **Why join?** * **Community vibe:** Friendly, social, in English. * **All levels welcome:** Coaches demo every move with **easier/harder options**. * **Time-smart:** 45 minutes, full-body, high energy, great music. * **Accountability:** Come with the group, leave with endorphins. **What we’ll do** 1. Quick intro & warm-up 2. **F45 functional circuits** (intervals that mix strength + cardio) 3. Team finisher & cool down 4. Optional post workout social drink/rooftop bowling nearby (meet new people, not just new burpees 😉) **Good to know** * **When:** Thursday, **6:30 PM start** (arrive 6:15 to check in) * **Where:** **F45 Brussels** (Brussels Central Station) Galeries Ravenstein * **Bring:** Clean trainers, towel, water bottle * **Fitness level:** Beginner to advanced (scalable stations) * **Capacity:** Limited spots — **RSVP required** * **Price:** Free weekly tryout **Who this is for** * New in Brussels and want a **friendly fitness + social** routine * Busy professional looking for a **structured, coached** workout * Sunday Vacations regulars who want to stay fit for hikes & trips **About F45** F45 = **Functional 45-minute training**: coach-led, station-based, results-driven. Expect variety, technique tips, and a positive team atmosphere. See you on the floor at 6:30! 💪🏽✨ By joining this event, you agree to the Sunday Vacations [Terms & Conditions](https://www.sundayvacations.com/terms), [Privacy Policy](https://www.sundayvacations.com/privacy) & [Code of Conduct](https://www.sundayvacations.com/code)

*Due to the summery weather forecast lets meet in Parc Royal instead. Find us at one of the tables at Woodpecker. If you cannot find us call* me via 0032 485 38 09 23 ----------- Let's read and discuss non-fiction together. In **June** we will be discussing "The Pragmatist’s Guide to Life: A Guide to Creating Your Own Answers to Life’s Biggest Questions" by Simone and Malcolm Collins. For more information about the book check out goodreads: [https://www.goodreads.com/book/show/38452905-the-pragmatist-s-guide-to-life](https://www.goodreads.com/book/show/38452905-the-pragmatist-s-guide-to-life) How it works: - 10-15min Introduction round - 1 - 1,5h Free discussion around the book - 10min selection of the next book. (We will vote between three possible books. I bring two suggestions and we select a third one from the group. So if there is a book you like to discuss feel free to put it forward.) Don't worry if you cannot finish it in time. Just join us for a coffee or tea and a good conversation. :) Happy reading!

🎶 UKULELE, GOOD VIBES & YOUR FIRST SONGS 🎶 Ever wanted to learn an instrument but didn’t know where to start? This is your sign ✨ Join us for a fun, relaxed, and beginner-friendly Ukulele Workshop at Pacson Music School — where music meets creativity, connection, and confidence. This isn’t a boring music class 👀 Think cozy atmosphere, good energy, laughter, group interaction, and the exciting feeling of actually playing your first songs together. Whether you’ve never touched an instrument before or you already know a few chords, this workshop is designed to help you feel comfortable, expressive, and inspired. ✨ WHAT YOU’LL EXPERIENCE ✨ 🎵 Learn your first ukulele chords 🎵 Play along to real songs 🎵 Discover easy strumming patterns 🎵 Improve rhythm & musical confidence 🎵 Meet creative and like-minded people 🎵 Enjoy a welcoming and supportive environment No pressure. No judgment. Just music, creativity, and connection 💛 ━━━━━━━━━━━━━━━ 📍 LOCATION Pacson Music School Rue Général Wangermée 12 1040 Etterbeek, Brussels 🕒 TIME 3:00 PM – 5:00 PM 🎶 LEVEL Beginner Friendly 🎸 Bring your own ukulele if you have one! (Some instruments may be available on-site.) ━━━━━━━━━━━━━━━ Perfect for: ✨ Beginners ✨ Adults wanting a creative hobby ✨ People wanting to meet others in Brussels ✨ Singers/songwriters ✨ Anyone wanting to reconnect with music in a fun way Spots are limited to keep the workshop interactive and personal. Come strum, connect, laugh, and leave knowing your very first songs 🎶💫

Join us for an energizing Qi Gong class focused on physical exercise techniques that help cultivate and balance your energy. Qi Gong is a traditional Chinese practice that combines movement, breathing, and meditation to improve overall well-being. In this session, you will learn various exercises aimed at enhancing physical strength, flexibility, and vitality. Whether you are a beginner or have experience with Qi Gong, this class is designed to help you connect with your inner energy and feel rejuvenated. Come discover the power of Qi Gong and train your body and mind for better health and harmony.

Hi everyone! In this research we unveil the principles of telekinesis training or practice. After about an hour of practice you will be able to move an object with your mind. I am not a master at this skill and I am learning with you. Get a head start and go to the website at: [THE Golden Library - Telekinesis](https://thegoldenlibrary.com/telekinesis/)

This Saturday 27.06 – Brussels Main Event ✩ Mont des Arts PARTY • BACK 2 MUSIC 2000-2010 • International Party at Plein Publiek •SAMEDI 27/06✩ →FACEBOOK INFO / [https://fb.me/e/5N7cBUNH1](https://fb.me/e/5N7cBUNH1) →PRIORITY PASS: SKIP THE LINE / [https://pleinpubliek.stager.co/shop/brussels/events/111649814](https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpleinpubliek.stager.co%2Fshop%2Fbrussels%2Fevents%2F111649814&data=05%7C02%7C%7Cc45113db850a48fbb40408de95755b42%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C639112528432655513%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=GZObVxLjpWBvHlKa4baGv31ewdTL9m%2BpLmx6RZnV7Do%3D&reserved=0 "Protected by Outlook: https://pleinpubliek.stager.co/shop/brussels/events/111649814. Click or tap to follow the link.") ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔ So, are you ready to dance to the best hits of the 2000s & 2010s? “Who’ll be there?” Stromae, Justin Bieber, Lady Gaga, Rihanna, The Black Eyed Peas & many more artists to take you on a nostalgic ride... For some, it feels like yesterday, for others a bit further back. Do you remember? Let’s be honest, the 2000s & 2010s were legendary, right? Don’t miss it! ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔ Info’s → Saturday, JUNE 27, 2026 from 11:30 PM to 4:30 AM → Plein Publiek, Mont des Arts, 1000 Brussels & its Summer Terrace → Easy access by public transport, bike or scooter! → Management reserves the right of admission → Minimum age: 18 ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔ Line-Up PALEXX, BOBOUNCE & Z00 UNCAGED FACEBOOK INFO / [https://fb.me/e/5N7cBUNH1](https://fb.me/e/5N7cBUNH1) → Plein Publiek Bxl, Mont des Arts, 1000 Brussels

Hello, readers ! In June we are reading She Who Remains, by Rene Karabash. We will meet at Maison de Quartier Malibran, Rue de la Digue 10, 1050 Ixelles. **Please keep your RSVP up to date** and happy reading!

Hi everyone, This coffee morning event is @MIR Concept Coffee Store! Saturday, 27 June 2026, from 10:00 - 13:00. MIR opened its doors 4 years ago, right off Place Jourdan. Doriana, the owner, is a super nice host, and is excited to have our group as her café. The café is very beautiful and has great coffee, and many yummy food options. Their Instagram channel: https://www.instagram.com/mirconceptstore/ **The address is:** MIR Concept Coffee Store Rue Gray 4A 1040 Etterbeek *** 1. The **prime time** of the event is **10:30 - 12:30**. That's when most people will be there. 2. When you enter the gallery, it's either on the right-hand side or left-hand side of its hallway, depending which entrance you take. 3. If you intend **to join past 12:00** (high noon), then there is no need to register. Just come and join! 4. **DON'T forget to cancel** if you can't join! 5. **Please, be respectful towards each other during the event. (And after ;))** **As always, feel free to follow us on INSTAGRAM!** [https://instagram.com/weekendmorningcoffee?igshid=OGQ5ZDc2ODk2ZA==](https://instagram.com/weekendmorningcoffee?igshid=OGQ5ZDc2ODk2ZA==) **THE STRUCTURE of THE EVENT:** * I will post the event on Saturday/Sunday evening for the following Saturday. * I send out a reminder to everyone on Friday. * There is sometimes a waiting list. * In case RSVP is closed (once there are 10-15 people on the waiting list), I might reopen it on Friday, depending on the number of cancellations in the meantime. * **For everyone on the waiting,** please check your status and messages on Friday evening the latest. I message everyone on the waiting list on Friday. * **Please, move to "not going" AS SOON AS you know that you can't come anymore, that includes everyone who is on the waiting list.** **IMPORTANT:** * **Please, be respectful towards each other during the event. (And after ;))** * When you register yourself, be careful not to register accidentally a +1 guest (unless you bring a guest). It happens very often. * If you have any questions then, message me. *** **A MESSAGE FOR NEWCOMERS:** *In the three years of hosting this coffee group, I have met many people who struggle with anxieties when coming to an event for the first time. Sometimes, it took them more than one attempt before being able to join.* *Occasionally, people reach out to me before the event, and I have always been grateful for that as it offers the opportunity to communicate with each other and to find the best and most gentle way for that person to join the group.* *I would like to encourage everyone who struggles with this to contact me before. It would really be too bad if you can't join us, as it mostly gets better the second or third time you come.* *In addition to that, if you arrive and notice any signs of nervousness or fear, you can always let me know right then.* **THANK YOU AND SEE YOU ALL ON Saturday!**

The ultimate Thursday night out is back. Join us for BAM Thursdays (Bar, Art, and Music) at the Columbus Museum of Art. Live music, great art, delicious bites, vendors and fresh cocktails in the garden space. Limited seating is also available inside Schokko Café (yummy sharable plates). **FEE:** BAM Thursday evenings offer **FREE general admission** from 5:00–9:00 PM. See what’s on view [here](https://www.columbusmuseum.org/art-exhibitions/on-view-now/) (special exhibits are $5.00 fee). **TOUR**: I'll lead a tour of the main museum from 6:30pm til 7pm. FREE **PARKING** behind the museum is $7.00. Nearby parking a little cheaper. **SEATING**: *Tables are available on a first come first serve basis for dining. In the event of inclement weather, BAM Thursdays will move inside to the atrium.* **DRESS**: Summer dressy casual

**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

Private Group. Closed to the Public Knowing ourselves and understanding our abilities is the first step toward wielding our gifts with control and accuracy. In subsequent classes we will verify and hone our talents with activities and discussion. These are hands-on workshops and participation is expected. The goal of our series will be to develop expertise in areas of particular interest such as mediumship, channeling, divination, healing and, etc.. Our ultimate directions will be determined by class members as we evolve. I look forward to sharing and discovering with you. - Cynthia

http://photos2.meetupstatic.com/photos/event/2/a/9/6/600_348310902.jpeg Instructor - Crow, HPS Class fee is $30 at the door or approved exchange RSVP with Advance pay of $25 (discounted) by PayPal on the web or by contacting Enchanted Elements (614) 437-2642. Reservations made directly to Enchanted Elements will be added to the class list manually not online. Private Instruction ~ Closed to the Public ~ Initiated Members Only Please come prepared for ritual. Blessings ~ Crow

Join us for an Opening Night showing of the super-hero action-adventure, SUPERGIRL! Get in early because this series is just getting started! Hot on the heels of last year’s excellent SUPERMAN comes what should be another fun adventure! Here’s a description, trailer and plan for this event: DESCRIPTION: Kara Zor-El, aka Supergirl, joins forces with an unlikely companion on an interstellar journey of vengeance and justice when an unexpected adversary strikes too close to home. The film is directed by Craig Gillespie, written by Ana Nogueira, and stars Milly Alcock, Matthias Schoenaerts, Eve Ridley, David Krumholtz, Emily Beecham, David Corenswet and Jason Momoa. TRAILER: https://www.youtube.com/watch?v=s1-pfiVMKAs MOVIE PLAN: Please purchase your ticket for the 7:00pm showing and meet in the lobby area between 6:40 and 6:50pm! It’s in their largest theater on their biggest screen but advance ticket purchase is advised for this Opening Night showing! Once you have yours, please list your seat number in the Comments below. DINNER PLAN: For this event, we’ll go meet for a pre-show bite at nearby EL VAQUERO! If you’d like to join for dinner, please arrive at 5:15pm and ask for the Movie Group! Look forward to seeing you there, Dan