Historical Fencing

Tijdens de maakavonden van Meet Je Stad soldeer je je eigen meetkastje dat temperatuur, luchtvochtigheid en fijnstof\* kan meten. Het solderen is geschikt voor iedereen: van beginner tot expert! Daarnaast bieden we begeleiding, dus hoef je niet bang te zijn dat je er niet uit komt. Ter deelname betaal je €15 voor de materialen. Vaak lukt het niet om al het soldeerwerk binnen één avond af te krijgen, maar dit is geen probleem; tijdens onze volgende maakavonden kun je langskomen om je werk af te maken. Inmiddels zijn er in de stad Utrecht nu zo’n 150 mensen die hun eigen meetkastje hebben gesoldeerd. Als je kastje af is wordt hij geregistreerd en kun je hem bij jou thuis ophangen/neerzetten. Hierbij krijg je instructies zodat je de juiste locatie kunt kiezen en je metingen zo betrouwbaar mogelijk zijn. Als het dan eenmaal hangt kun je via de kaart op de [website van Meet Je Stad](https://meetjestad.net/index3.php?loc=Tb) bijhouden welke metingen je kastje neemt: zo kun je bijvoorbeeld zien op welke momenten het bij jou het warmst is en vergelijkingen maken met waardes van andere meetkastjes. Dat kan door middel van [deze tool](https://mjs-datavisualisation-fez7kynngq-ez.a.run.app/) die je helpt om grafieken te maken. Dan kan je er achter komen hoe jouw omgeving ervoor staat in vergelijking met de rest van de stad. Meet Je Stad organiseert ook kennisavonden met gastsprekers die vertellen over hitte, fijnstof en andere burgerinitiatieven in de stad. Dit zijn ook gelijk geschikte momenten voor deelnemers om met elkaar in discussie te gaan over hun metingen en ondervindingen. Zo hopen we een netwerk van betrokken inwoners te creëren en meer te weten te komen over de milieuomstandigheden in de stad! *\*De fijnstofsensor is optioneel en kost 20 euro extra. Indien je deze bij je meetkastje wilt moet je deze via een draad met een stroombron binnen 15 meter kunnen verbinden.* **Organisatie:** Milieucentrum Utrecht (MCU) in samenwerking met de Makerscommunity HaHaHo. **Locatie:** Bibliotheek Neude, Huis van Actief Burgerschap (begane grond) **Kosten:** 15 euro voor materiaalkosten, 20 euro extra voor fijnstofsensor. *Bij te weinig aanmeldingen kan de workshop afgelast worden.*

If you are living in The Netherlands, by now, you may well have noticed the amount of open water. If you enjoy cycling in the city, you may wish to feel safer as you navigate the bridges and canals. And you may also want to get ready for visiting the beach, pools or the many lakes this summer. Learning how to swim takes approx 1 year and it all starts with the very first lesson. New comers enroll via our website and pay € 30,50, this is the first lesson and a goody bag. After the class you agree with the personal swim coach how to continue to obtain your final objectives. Enrolling is only possible via [www.your-personal-swim-coach.nl ](https://www.your-personal-swim-coach.nl/)hence a rvsp via meetup is not enough.

Samen sporten, gewoon voor de fun, elke week een divers programma, met allerlei verschillende sporten. Je hoeft niet de beste te zijn, maar wel zin hebben om samen te spelen en te leren. Tijdens een training doen we verschillende spelletjes, basketbal, voetbal. volleybal, spikebal, honkbal. Kom je ook, de bal ligt bij jou!! Eerste keer meedoen is altijd gratis, daarna kan je beslissen of dit voor jou is, of niet!! Dus kom een keer proberen. Kan je niet op deze dag, we sporten ook op andere dagen nl Zondag om 9:30 of Maandag om 20:30 Stuur mij een berichtje als je op die dagen een keer wil proberen! The amount of people rsvp'd to this game doesn't match the real number of people at the event, as Meetup is only used for promotion purposes.

New Year, New Sport! 🏐 ​Whether you've never played volleyball before or it’s been many years since you last hit the court, you are very welcome to join our Beginner Group! ​We train every Monday at 9 PM at Gymnasium Bibian Mentel in Zeeburgereiland. ​Come learn the basics, get moving, and meet new people in a fun, relaxed environment. ​Get more info here: ​WhatsApp Group: https://chat.whatsapp.com/EnPEK1bHLiTGdpqz6Vtbm4 ​Instagram: @brazucavolley

Beste Java-ontwikkelaar, We nodigen je graag uit voor een fysieke Java Meetup bij de Belastingdienst over **DDD, Event Storming en Hexagonal Architecture** door Arjen Wassink & Cees van der Velde van Quintor. **Programma:** 17:45 Inloop 18:00 Indonesisch buffet (halal, koosjer & vegetarisch) 19:00 Presentatie **Domain Driven Design / Event Storming** 19:45 Pauze (koffie/thee) 20:15 Presentatie **Hexagonal Architecture** 21:00 Drankjes met hapjes 21:30 Afsluiting De presentaties worden in het Nederlands gegeven. **Betere systemen ontwikkelen met hulp van DDD, Event Storming en Hexagonal Architecture** Je hebt het vast wel eens meegemaakt dat je een software systeem onder handen krijgt die niet makkelijk te onderhouden, upgraden of uit te breiden is. Iedere aanpassing lijkt exponentieel veel tijd te vergen. Er kunnen verschillende oorzaken hiervoor zijn, maar vaak zie je dat er te veel afhankelijkheden in de sourcecode zijn, verantwoordelijkheden niet goed belegd zijn of het systeem niet goed aansluit op de werkelijkheid. In deze sessie gaan we in op hoe DDD, Event Storming en Hexagonal Architecture ons kan helpen deze punten te verbeteren aan de hand van een concrete casus, diagrammen en sourcecode. Zo gaan we in op: * hoe Event Storming kan helpen de brug te slaan tussen de ‘business’ en developers, zodat een systeem aansluit op de werkelijkheid * DDD artefacten input leveren voor het bepalen van een systeemarchitectuur met duidelijke verantwoordelijkheden en afhankelijkheden * Hexagonal Architecture handvatten biedt voor een software architectuur met minder functionele- en technisch afhankelijkheden Mis deze inspirerende kennissessie niet en ontdek hoe je jouw softwareprojecten toekomstbestendiger maakt! **Arjen Wassink** Arjen is een architect bij Quintor met 25 jaar ervaring in het bouwen, onderhouden en doorontwikkelen van verschillende soorten systemen met Java technologie. Met zijn brede techniek en vakmanschap interesse is hij instaat enterprise architecturen te vertalen naar systeem- en software architecturen, en werkwijzen die werken. Hiernaast verzorgt hij een minor cloud-native software development aan de Hogeschool Utrecht waarin hij nieuwe vakgenoten leert professioneel software te ontwikkelen voor de cloud. **Cees van der Velde** Cees is een ervaren business- en informatieanalist bij Quintor met een passie voor techniek. Zijn kracht ligt in het helder krijgen en begrijpen van vraagstukken en deze te vertalen naar een concrete oplossingen die aansluiten bij de behoeften van developers, zodat effectief het juiste systeem gebouwd wordt. **Deelname:** Deelname is gratis. **Locatie:** Belastingdienst Stationsplein 50 (naast het bus- en NS-station) 7311 NZ Apeldoorn **Opmerkingen:** * Vergeet uw paspoort of identiteitskaart niet mee te nemen. * Registreer met dezelfde achternaam als op uw paspoort of identiteitskaart. * Geef eventuele dieetwensen door, anders dan halal, koosjer en vegetarisch. * Wij raden u aan om met het openbaar vervoer of de fiets te komen. * Er zijn 30 parkeerplaatsen onder ons kantoor, navigatieadres Sophialaan 22 - 7311 PD Apeldoorn. * Overige parkeermogelijkheden: 1. Parkeergarage Haven-Centrum, navigatieadres: Korte Molenstraat 2 Apeldoorn, 2. P+R, Laan van de Mensenrechten Apeldoorn.

Event planned for Sunday near the Diemen Station.

Donderdag **26 februari 2026** is het weer tijd voor onze **Techday**: hét vaste moment waarop we kennis delen, elkaar inspireren en nieuwe ideeën direct in de praktijk brengen. Deze editie komt een spreker van Onyx langs. Onyx is gespecialiseerd in cybersecurity. Tijdens deze techday worden theorie, praktijk en nabespreking gecombineerd met directe toepasbaarheid in jullie dagelijkse werkzaamheden. Tijdens de Techday duiken we hands-on in veelvoorkomende kwetsbaarheden en misconfiguraties binnen moderne softwareontwikkeling. Theorie, demo’s en realistische scenario’s wisselen elkaar af. Met de interactieve CTF‑opdrachten leer je niet alleen hoe deze problemen ontstaan en misbruikt worden, maar vooral hoe je ze direct kunt toepassen en voorkomen in je dagelijkse werk. **Wanneer:** Donderdag 26 februari 2026 **Wat:** Cybersecurity in de Praktijk: Hands-on met Onyx **Voor wie:** Iedereen die nieuwsgierig is en wil leren **Agenda** 14:45 - 15:00 - Inloop 15:00 - 18:00 - Opening en introductie Praktijkvoorbeelden: Wat zijn wij in het echt tegengekomen Security misconfiguration: Gezamelijke spot-de-fout met code-snippets CTF opdrachten 18:00 - 19:00 - Eten en napraten We zien je graag op de Techday!

\*This event will be **ONLINE ONLY** **Are you an experienced tech professional aiming for top-tier roles at MANGA, AI companies, hedge funds or just the next step?** Your experience is solid, but is your CV holding you back? * CV doesn't bring you more interviews ? * Get ghosted often? * Recruiters don't move you forward once they review it? * 100 applications and less than 12 interviews (industry average) Top-tier tech companies receive thousands of applications from qualified candidates. At the senior level, it’s no longer just about listing your skills - it’s about how you frame your impact, leadership, and technical depth. We are bringing in a **Senior Engineer directly from Amazon** to provide insider insights on exactly what hiring managers at major tech firms look for in senior-level applications. **This is not a generic resume workshop.** This is a deep dive into crafting a CV that gets noticed by decision-makers at the highest levels of tech. **What We Will Cover:** * **The MAANG Lens:** How a Senior Amazon Engineer reads a resume * **Impact vs. Duties:** Shifting your CV language to highlight measurable business outcomes rather than just job responsibilities. * **Senior Positioning:** How to effectively structure leadership, architecture, and system design experience. * **The "Red Flags":** Common mistakes that get even highly experienced candidates rejected by ATS or recruiters. **Who Should Attend:** ⚠️ **Please Note:** This event is tailored for **experienced professionals** in the tech industry (e.g., Senior Software Engineers and tech professionals with more than 2 years of experience). **RSVP today to elevate your career prospects.** **Hosted by TopCoding**

**ArnhemJUG** We are excited to announce the second meetup of 2026. OpenValue Arnhem is once again hosting us for the February meetup! **Agenda** * 17:00 CET walk-in * 17:30 – 18:30 Food and drinks * 18:30 – 19:30 talk: **Catching the 137-Killer: A Java Memory Forensics Investigation** by **Martijn Dashorst** * 19:30 – 19:45 break * 19:45 – 20:45 talk: **Building AI Agent Platforms: Architecture, Communication, and Standards** by **Pascal Wilbrink** * 20:45 – 21:30 drinks **Catching the 137-Killer: A Java Memory Forensics Investigation** Your Java application is running smoothly, blissfully unaware of the danger lurking just around the corner. Then—without warning—it vanishes without a trace. Upon investigation, you discover the virtual remains of countless slain JVMs, each marked with the same cryptic number: 137. A serial killer is on the loose in your cluster. This true crime investigation will walk you through the differences between JVM memory areas, the mechanics of container OOMKills, analysing Grafana dashboards for memory and thread anomalies, interpreting heap dumps, and utilising JVM Native Memory Tracking (NMT) to uncover hidden native memory consumption. You’ll master practical forensic techniques and proven prevention strategies—from memory tuning tactics and balancing heap vs. non-heap allocations to leveraging large language models (LLMs) for advanced forensic analysis. These skills will help ensure your applications stay alive—even when something’s out to get them. Just like in a real murder mystery, we may not know whodunnit... but with Martijn Dashorst leading the investigation, you're sure to get closer to the truth. **About Martijn Dashorst** My Java experience is finally old enough to drive, vote and drink a beer (not all at once). One of the remaining Eclipse users, loves Java, relationship with Maven is complicated. Martijn Dashorst has worked since 2004 at Topicus and has used Java since 2002. Loves server-side Java. You might know him from Apache Wicket—he's dabbled somewhat in that framework. Loves his family and cats, finds Douglas Adams' description of the Sirius Cybernetics Corporation's technology very apt to the current technology landscape. **Building AI Agent Platforms: Architecture, Communication, and Standards** AI systems evolve from standalone models into connected, agent-based ecosystems, new architectural patterns, protocols, and standards are emerging. Concepts such as AGUI, A2A, A2UI, and MCP-based applications are changing how intelligent systems are designed and integrated. This presentation explains how these approaches affect system structure, responsibilities, and interoperability. Using architectural diagrams, it shows how AI agent applications communicate and collaborate through standardized interfaces, and provides guidance on building scalable and maintainable AI platforms. **About Pascal Wilbrink** Pascal is a senior software engineer at OpenValue with over a decade of experience and a strong interest in applied AI and intelligent automation. He enjoys exploring how technology can make developers’ lives easier and software more resilient. When he’s not experimenting with new ideas or building open-source tools, Pascal likes to learn by doing and turning complex problems into practical solutions.

**Welcome to our February UX Beers in Antwerp!** This time, we will host our event on Tuesday the 24th of February with [Ariad](https://www.ariadgroup.com/en) at [Plein Magazijn](https://www.pleinmagazijn.be) in Antwerp. [Ariad](https://www.ariadgroup.com/) and [Creative Skills](https://www.creativeskills.be/) sponsor our events. 📺 Follow the event online? We stream live via [Youtube](https://www.youtube.com/watch?v=EBqyTDAyQBw) \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- \#\#\# UX TALKS **Talk 1: Align or Fail: When Brand Meets UX** [Mario Restrepo](https://www.linkedin.com/in/mario-restrepo/), Creative Director Every interaction shape perception and tells a brand story, whether intended or not. In this talk, we explore why UX is the space where brand promises are either proven or broken, and why, in the age of AI, alignment between brand and user experience has become a strategic imperative. Drawing on real-world examples, this talk reframes UX designers as brand storytellers, and UX deciders and stakeholders as guardians of trust. It also introduces an **AI-driven Brand Sentiment Analysis workflow**, showing how teams can translate user signals into actionable insights, and design experiences that don’t just function, but reinforce how a brand is felt, remembered, and believed. **Talk 2: The UX evolution: thriving in the age of intelligent systems** [David Grunewald](https://www.linkedin.com/in/davidgrunewald/), Founder of Pluginto.ai , AI-Strategist AI is fundamentally changing how UX professionals work, but it's amplifying our capabilities, not replacing them. This 45-minute session explores what's actually happening in 2026. You'll see real implementations from banking, healthcare, and other sectors: proactive systems that anticipate needs, conversational interfaces that adapt to individual patterns, and hyper-personalisation at scale. We'll examine **four trends reshaping UX practice and, more importantly, what they mean for your daily work**. What's being automated? What's gaining value? And what are the five essential skills that set you apart in an AI-augmented world? You'll leave with clarity on how to evolve your practice and confidence that your human expertise remains your competitive advantage. \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- \#\#\# SCHEDULE 18:00 - Doors open. Drinks & snacks 19.00 - 19.15 - Introduction to UX Belgium Meetup, announcements 19.15 - 19:45 - Talk #1 19:45 -20:15 - BREAK 20:15 - 20:45 - Talk #2 20:45 - 21:30 - Socialize \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- \#\#\# SLACK CHANNEL We have our own UX Belgium slack channel. [Come join us and say hi!](https://join.slack.com/t/ux-belgium/shared_invite/zt-1bjpnuiog-T4Di4flXYPWgbT9KrZ53CA) \*\*\* \#\#\# YOUTUBE CHANNEL All our livestreams and talks are recorded and available on our [UX Belgium youtube channel](https://www.youtube.com/channel/UCno7V18T-EglYXprgrUZQ7A). \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- \#\#\# ABOUT UX BELGIUM UX Belgium is a growing community of User Experience (UX) professionals in and around Belgium. Look for these types of events: UX Beers Periodically, we gather at a different agency or venue to drink beers, network and listen to speakers on various themes in the world of UX and digital design. UX Antwerp: Each last Tuesday of the month UX Brussels: Each second Tuesday of the month, 4x per year UX Hasselt: 4x per year UX Workshops Now and then we organize events to dive deeper into specific skills and techniques in UX. These are smaller, hands-on workshops designed to boost your UX toolbox. \*\*\* The UX Belgium Meetup Team

We are a real world Martial arts group. \ Called DO JUNG ISHU (the art of fighting) \ Based off of Jeet kune do we just continued where Bruce Lee left off. \ We have been around a while. \ We are donation based. Every week we get together and work technical skills and live pressure testing. \ Almost all of the instructors have been in everything from altercations in the real world to the ring and some still compete in the cage. \ If you want to take your skills up, improve your confidence, gain self defense skills, get in better shape, test yourself or just want to kill some time and possibly get hit a bit come on down. \ We will be located at 3923 N High St, Columbus, OH 43214 inside the whetstone rec center in the auditorium, upstairs in classroom B or outside in the grass between the playground and horseshoe area. our instructors are normally in a black and red art of fighting shirt \ if you can not find us call or text me at 6143570295 Saturday 1pm Wednesday 5:30pm From Age 16 and up. attendees under the age of 18 must have a guardian with them. \ \ You must have a free leisure card for the rec center and must be registered for our class specifically .\ Wear workout clothing \ Bring a MOUTHPIECE! \ WE HAVE GLOVES. \ Hope to see you soon :-).\ We are run off of donations. \ let me know if you have any questions :)

Bienvenue! Columbus French Conversation group invites you to our Saturday morning French conversation club. Expect a casual and welcoming atmosphere in which to learn french! I will bring my laptop so we can look up new vocabulary as needed! The venue is a beautiful French restaurant so you can really get into the zone :)

We are a real world Martial arts group. \ Called DO JUNG ISHU (the art of fighting) \ Based off of Jeet kune do we just continued where Bruce Lee left off. \ We have been around a while. \ We are donation based. Every week we get together and work technical skills and live pressure testing. \ Almost all of the instructors have been in everything from altercations in the real world to the ring and some still compete in the cage. \ If you want to take your skills up, improve your confidence, gain self defense skills, get in better shape, test yourself or just want to kill some time and possibly get hit a bit come on down. \ We will be located at 3923 N High St, Columbus, OH 43214 inside the whetstone rec in the auditorium, center upstairs in classroom B or outside in the grass between the playground and horseshoe area. our instructors are normally in a black and red art of fighting shirt \ if you can not find us call or text me at 6143570295 Saturday 1pm Wednesday 5:30pm From Age 16 and up. attendees under the age of 18 must have a guardian with them. \ \ You must have a free leisure card for the rec center and must be registered for our class specifically .\ Wear workout clothing \ Bring a MOUTHPIECE! \ WE HAVE GLOVES. \ Hope to see you soon :-).\ We are run off of donations. \ let me know if you have any questions :)

#### Turning Rentals Into Income: How Investors Pay Off Properties Faster #### **Featuring Guest Speaker: John Blackburn** **👉 Get your FREE TICKET [HERE](https://www.eventbrite.com/e/turning-rentals-into-income-how-investors-pay-off-properties-faster-tickets-1980492192461?aff=cicmeetupapp)** #### A lot of people get into real estate because they want freedom. Then they buy a rental…and realize most of the rent goes straight to the bank. They technically own property, but the mortgage controls the income. And waiting 30 years for properties to be paid off doesn’t feel realistic. This meetup is about understanding a different way to think about rental properties… one that focuses on paying them off sooner so the income is actually usable. **Featured Guest Speaker: John Blackburn** We’re excited to welcome John Blackburn as our guest speaker for this event. John has been actively investing in real estate since 2006 and has: * Been involved in **5,000+ real estate transactions** * Helped investors **acquire over $150 million in rental property** * **Raised more than $100 million** in private capital John didn’t start with family money or shortcuts. He built his portfolio by focusing on clear systems, real numbers, and long-term strategy. For this meetup, John will walk through how investors shift their focus from simply owning rentals to building properties that eventually pay them…without a mortgage attached. **What You’ll Learn** John will break down, in simple terms: * Why most rental properties don’t produce much usable income early on * Why buying more rentals isn’t always the answer * How investors structure their properties to pay off mortgages in a fraction of the time * How properties can work together to eliminate debt faster * What changes once rentals become free and clear This approach is often referred to as an accelerated paydown strategy — using rental income intentionally to reduce debt sooner, rather than waiting decades for mortgages to run their course. John will also share a simple calculator you can use to see how this works with real numbers and realistic scenarios. **The Core Idea** When a rental has a mortgage, the rent has one job: **pay the bank.** When a rental is paid off, the rent has a different job: **pay you.** Most people only see one timeline…30 years. This session shows how investors shorten that timeline and gradually increase their income as properties become free and clear. **Who This Event Is For** This event is for people who want more than just “owning rentals” on paper. * Rental owners who are tired of most of the rent going to the bank and want a clearer path to real, usable income * New investors who want to understand how rental properties actually build wealth over time before jumping in * People with capital who want to invest in real estate with intention and a long-term plan * Anyone serious about freedom and curious how rental properties transition from debt-heavy assets into income-producing ones **Event Details** **Location:** Ohio Brewing Company - 421 E 2nd Ave, Columbus, OH 43201 **Date & Time:** January 25th, 6–8 PM (Doors open at 5:30) **Cost:** Free (Seats are limited - RSVP required) **👉 Get your FREE TICKET [HERE](https://www.eventbrite.com/e/turning-rentals-into-income-how-investors-pay-off-properties-faster-tickets-1980492192461?aff=cicmeetupapp)** If you’ve ever wondered how rental properties actually turn into freedom —this is the room to be in.

This is a time where players of all ages, and skill levels can gather and enjoy a nice Sunday full of Chess!

Jimmy V's Grill & Pub in Grandview Heights. You are responsible for your own meal/drinks. We usually don't have any agenda other than eat, drink and talk. :) If the weather is nice we will be on the back patio, otherwise we are in the cigar room. This group has been meeting every Tuesday evening for over a decade. Many attendees do not RSVP on meetup. Please don't let the small number here discourage you. Anyone/everyone is welcome to come. We'd love to have you join us. COTA bus #5 comes to W. 5th and Wyandotte Rd. And it's a minute walk to the restaurant.

👇 purchase tickets online at the link below. ready for an unforgettable night of Women's Indoor Volleyball and camaraderie! Join fellow members for an action-packed evening and cheer on the Fury together. Where: Nationwide Arena Price: $27 Who: Active Member & Guest Non-Member Event Contact: Betsey Lyon, betseyllyon@yahoo.com Sign up link below: [Columbus Fury Volleyball Game - Calendar - Columbus Ski Club](https://www.columbusskiclub.org/content.aspx?page_id=4091&club_id=686961&item_id=2795127)