Physics

***English invitation*** You are invited to visit the Dutch Deventer Toastmasters. Toastmasters is an organisation where you can develop your public speaking and leadership skills in a safe, positive and inspiring environment. It grows your self confidence and gives your energy a boost. Want to visit us? Send an email to deventertoastmasters@gmail.com ***Nederlandse uitnodiging*** Je wordt van harte uitgenodigd om onze Nederlandse bijeenkomst te bezoeken bij Deventer Toastmasters. Toastmasters is een organisatie waar je je vaardigheden op het gebied van spreken in het openbaar en leiderschap kunt ontwikkelen. Dit doen we in een veilige, opbouwende en inspirerende omgeving. Je zelfvertrouwen groeit en je energie krijgt een boost. Wil jij meedoen? Stuur een email naar Deventertoastmasters@gmail.com

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.

A great ride along the Vecht and Gein rivers. You will love this route. Please ride single file along the winding river as there can be cars around each corner. **Route:** https://connect.garmin.com/modern/course/441606271 GPX: https://drive.google.com/file/d/17-T_pT_GH3QKSFcH1WWgfArvxSdAkVzO/view?usp=sharing **Afterwards:** Drinks at Polder https://maps.app.goo.gl/tbt5DDG7YLU3uWvaA **Rules:** \- Download the route to your cycling computer so you can always find your way home \- Make sure to arrive on time \- Before you ride\, decide as a group how you want to ride: you can split up in a fast and a slow group or stay together\, but make sure to discuss what pace you are going to ride and whether you are going to wait if someone is slower than the group\, or not\.

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

**This is an event organized by Topswim, an ATAC partner. ATAC-Members recieve a 40€ discount on a 185€ course.** **Basic Open Water Course 2026** **A total of 6 one-hour training sessions, each with a different theme.** **Beginner open water swimmers learn the ins and outs of outdoor swimming, such as navigation, water safety, and equipment handling. Advanced swimmers can learn to swim more efficiently, get more out of their strokes, and improve their fitness. The course is ideal for recreational outdoor swimmers, or participants in a city swim or triathlon. We also use video to explore your potential improvements. If you have any questions, please contact us at michiel@topswim.nl.** **6 Monday evenings 7:00 PM - 8:00 PM May 25, June 1, 8, 15, 22, and 29** **KNSM-Eiland, Amsterdam** **6 Wednesday evenings 7:00 PM - 8:00 PM May 27, July 3, 10, 17, 24, and 1** **Steigereiland (IJburg/East)** **6 Thursday evenings** **Watersportcentrum Sloterplas (West) 7:00 PM - 8:00 PM May 28, July 4, 11, 18, 25, and 2** **Course fee** **€185. You can register directly by emailing michiel@topswim.nl. There is a maximum number of participants, so be on time! To participate, you must be able to swim at least 150 meters of front crawl in a pool and have a wetsuit and a buoy.** **HBSF series** **Have you already taken the course, or are you an advanced open water swimmer? Then you can also participate in the HBFS (Harder, Better, Faster, Stronger) series.** **In these training sessions, we delve deeper into open water techniques, endurance, and race tactics. Expect less theory and more swimming! This series runs from 8:00 PM to 9:00 PM, following the Basic Course hours on Wednesdays and Thursdays, at the same location.** **Change training days?** **That's no problem! You can change days/locations twice during the course period.** **For questions please reach out! DM +31626034210 or meet me at the tracks or pool.** **I hope to see you in the open water!** **Best, Michiel**

This is one for the early birds, but gets you back into the city by 7.45-8am, so you can still make it in time for work. Please note: the route is the ordinary Ronde Hoep for now, as there are currently roadworks happening near Nes aan de Amstel. **Route:** https://connect.garmin.com/modern/course/447404376 **Afterwards:** Coffee at Coffee Company https://maps.app.goo.gl/WDTpAJ6TurQwFANd8 **Rules:** \- Download the route to your cycling computer so you can always find your way home \- Make sure to arrive on time \- Before you ride\, decide as a group how you want to ride: you can split up in a fast and a slow group or stay together\, but make sure to discuss what pace you are going to ride and whether you are going to wait if someone is slower than the group\, or not\. \- The end of the route is a coffee stop that opens at 7:30am so you can socialize

𝗗𝗮𝘁𝗮 𝗧𝗵𝘂𝗿𝘀𝗱𝗮𝘆 𝗶𝘀 𝗯𝗮𝗰𝗸 — 𝗮𝗻𝗱 𝘁𝗵𝗶𝘀 𝗼𝗻𝗲 𝗶𝘀 𝗱𝗶𝗳𝗳𝗲𝗿𝗲𝗻𝘁 🌱 On **Thursday, May 28**, we are proud to host a special **Data Thursday** edition at **B. Amsterdam**: **Cloud & Climate Pub Quiz** ☁️🌍 This will not be a classic sit-back-and-listen meetup. This is a **taste-of-tech game night** where #climate, #cloud, #AI, #CO₂, #costoptimisation and a bit of controlled chaos come together in one big interactive quiz. At **Data Tribes & EcoVerum,** we believe that climate impact, sustainability reporting and regenerative transformation all start with better data. This evening brings that belief to life in the most Data Thursday way possible: with sharp questions, practical insights, team play, pizza and drinks. Your personal quiz masters for the evening: 👷‍♂️ **Henk van der Valk** Platform & Intelligence Architect 👷‍♂️ **Marcel van der Kuil** Data & AI Impact Engineer Together, Henk and Marcel will join forces as **Buurman & Buurman for Cloud & Climate**, fixing things one quiz round at a time. Think climate science, cloud optimisation, AI-assisted answers, sharp questions, practical insights and probably a few moments of **“A je to!”** along the way. The evening includes three rounds: 🌍 **National Climate Quiz** 🌡️ **Climate Interactive EN-ROADS simulator** ☁️ **Cloud optimisation: cost, CO₂ and Scope 3** Bring your laptop. Teams will compete for points, prizes and eternal Data Thursday glory. AI is allowed, but beware: some answers need to be explained in your own words. 𝗣𝗿𝗼𝗴𝗿𝗮𝗺 **// 18:00** — Doors open + pizza **// 18:30 – 19:15** — First round **// 19:15 – 20:00** — Second round **// 20:00 – 20:45** — Third round **// 20:45 – 21:00** — Wrap-up / evaluation **// 21:00 – 21:30** — Drinks & networking **// 21:30** — End 📍 **The Henry, B. Amsterdam — B.1** Johan Huizingalaan 763a, Amsterdam A big thank you to **B. Amsterdam** for once again supporting the Data Thursday community. Because without reliable data, there is no reliable climate action. And this time, we are testing what grows when cloud, climate, AI and community come together. Greetings, Data Tribes Inc & EcoVerum

The sun is finally out! For our May workshop, we are stepping out of the studio and into the open air of Amsterdam's beautiful **Gaasperpark**. In the city, we often contract and match the pace of screens. This session is an invitation to expand—to let your body breathe with the trees, run on the grass, and rediscover the joy of unstructured group play. 🎭 **What We Will Explore:** * **The Unbound Body:** Moving without the constraints of four walls. * **Nature as a Partner:** Letting the wind, trees, and earth inspire our movement. * **Collective Play:** Childlike, spontaneous physical theatre games under the open sky. * **Grounding & Presence:** Tuning into our senses to shake off the daily hustle. 👥 **Who Is This For?** Perfect for anyone wanting to disconnect from the digital world, release stress, and meet a warm, creative community. **Absolutely no movement or theatre experience needed!** Come exactly as you are. 🕺 **Meet Your Facilitator** This session will be led by **Zippo Guo**, a Chinese physical theatre artist, Featured illusionist at ‘The Illusionists Starring Hans Klok’ (Cirque du Soleil Entertainment Group) ☁️ **About Cloud Causality (当下剧场)** Cloud Causality is an international platform for physical theatre and cultural exchange. Our work is rooted in two core philosophies: * **The Danish Folk High School Tradition:** Inspired by the spirit of the *“School for Life”*—prioritizing experiential learning, non-competitive play, and human connection over pressure and performance. * **Mime Corporel (Corporal Mime):** Developed by Étienne Decroux, this practice forms our foundation—using expressive movement to make the invisible currents of life visible and poetic. 📅 **Practical Info** * **Date:** Sunday, May 31, 2026 * **Time:** 13:00 – 16:00 * **Location:** Gaasperpark, Amsterdam * **What to wear:** Comfortable clothes you can move in. Bring a water bottle and sunscreen! 💛 **Contribution (Donation-Based)** * Students / Not working full-time: €5–10 * Working / Financially comfortable: €10–30 * *Tight on budget? Please just come—your energy is what matters most.* Let's meet under the sun and feel free together! ☀️🌿

Every AI pipeline starts with one question: where does the data come from? In this hands-on workshop, we'll answer that question using Scrapy, one of Python's most powerful web scraping frameworks. You'll go from a blank project to a working spider that harvests structured data from the web, ready to feed into your next AI or data science project. We'll cover: • Scrapy vs. lighter tools (Requests & Beautiful Soup), and when each makes sense • Extracting data from HTML using CSS selectors • Following links and handling pagination at scale • Writing clean, structured output to a file • The ethical and legal side of web scraping Bonus (Gold Star): a chapter on scraping JavaScript-rendered pages for those who want to go further. 🐍 Python basics assumed — no prior scraping experience needed **Agenda** \- 18:00 Doors Open \- 18:30 Start of the Workshop \- 20:15 Workshop Closing & Announcements \- 20:30 Networking \- 21:00 Event Closing **GitHub Repo** [Scalable Data Harvesting for AI](https://github.com/pyladiesams/scalable-data-harvesting-for-ai-may2026) **Stream** [YouTube Stream](https://www.youtube.com/watch?v=0wqXbShaAvU) ​**📧 Contact** Are you interested in speaking at one of our events? Have a good idea for a Meetup? Get in touch with us at [amsterdam@pyladies.com](mailto:amsterdam@pyladies.com) ​💬 Find us on the PyLadies Global workspace: 1. ​[https://slackin.pyladies.com](https://slackin.pyladies.com/) enter your email address. Accept the email invitation 2. ​Go to workspace [https://pyladies.slack.com](https://pyladies.slack.com/) 3. ​Join channel #city-amsterdam 4. **Scalable**

Let us meet, have a coffee and code together, or just discuss :)! This Meetup is everyone that considers himself "Techie", in the broad sense and wants to socialize :). Join us and chat, ask your questions, or work on your own projects. The choice is yours! There is no agenda, this is simply a gathering of interested folks :). We're meeting at Lebkov right inside the Utrecht Centraal station. We're typically sitting at the large table. Search for the folks with the laptops in the back! You are very welcome to join whether you are an experienced developer, or simply interested and want to chat!

NOTE: this is an **in-person event** in Amersfoort! We are a bunch of Clojure enthusiast who meet every month to discuss every thing Clojure. Today we'll have a presentation around SSR web development, with practical examples and experiments. Further, we don't have scheduled any special activity for tonight, so here's some ideas of what we would love to hear from you: * have you started new projects with Clojure(Script)? Tell us all about it! * did you author or started using cool new libraries? Plug your laptop to the projector and show us! * ever wanted to learn more about some topics or are you just anewcomer to the Clojure world? Just ask, we're happy to help you out! See you! p.s.: food is not offered tonight, make sure to come with a full stomach!

🎟️ **[REGISTER FOR THIS EVENT HERE](https://www.ministryoftesting.com/chapters/mot-netherlands/events/mot-netherlands-280526)** 🎟️ **The MoaCM ... which sounds a bit like Mokum (nickname for Amsterdam).** Every tester knows there’s always more going on beneath the surface: the unspoken questions, the unexpected discoveries, the “wait… what just happened?” moments that shape our craft. Our next chapter meeting leans right into that spirit. We’re pulling back the curtain on the things we don’t always talk about, the stories that don’t make the slides, and the hidden agendas that quietly steer our testing journeys. We offer you an evening full of curiosity, connection, and a few delightful surprises. Two awesome speakers will take the stage with talks crafted especially for this event. Sorry, no spoilers, but trust me, you will want to be in the room when they drop their insights. Add great food, lightning talks, stroopwafels, and the kind of hallway conversations that only happen at Ministry of Testing gatherings, and you’ve got yourself a night worth marking in bold on your calendar. **PROGRAM:** **17:00 – Arrival & Grabbing a Seat** Ease in, find your spot, and enjoy your complimentary stroopwafel. Consider it the warm‑up round for your brain. **17:20 – Opening Remarks** A quick kickoff to set the tone and spark your curiosity. **17:30 – Talk 1: Sanne Visser** The wheel is spinning but the hamster is stuck. (Knowing Sanne, expect something sharp, thoughtful, and delightfully unexpected). **18:30 – Dinner** Fuel up with good food, because even testers need to keep their internal combustion engines running smoothly. **19:30 – Talk 2: Veerle Verhagen** tba… (And yes, Veerle will absolutely bring her ever-present energy, brilliant insight, and probably a twist we will not see coming). **20:30 – Closing & Lightning Talks** A few final thoughts from your chapter lead, followed by the community taking the mic. Share an idea, pitch a question, or drop a testing gem … lightning‑style. **Followed by – Networking Drinks** Stay, chat, unwind, and connect. No fixed end time; we leave when the energy fades or the building politely tells us it’s time to go. 🎟️ **[REGISTER FOR THIS EVENT HERE](https://www.ministryoftesting.com/chapters/mot-netherlands/events/mot-netherlands-280526)** 🎟️

Beste luisteraars, **Voor de eerste keer organiseren we op veler verzoek een meetup in het Oosten. We gaan dit keer naar Arnhem.** Aan de saté en ribs van Jan is bijna niet te tippen, maar alle ondernemers in Foodhall kunnen er ook wat van. Meer dan 10 restaurants bieden een complete wereldkeuken naar keuze. Dit wordt een speciale editie van Satoshi Radio Meetup. We vieren 28 mei namelijk 🥳 **[12 jaar Arnhem Bitcoinstad](https://arnhembitcoinstad.nl)**! De bitcoinstad van Nederland met meer dan 65 winkels en horecagelegenheden waar je met je bitcoin terecht kan. Overal betaal je eenvoudig via ⚡Lightning. Deze meetup wordt wederom mede-mogelijk gemaakt door **[Blockrise](https://www.blockrise.com)**. Het eerste drankje krijg je van Jos 🍻. **Neem een vriend of vriendin mee**. Wel even aanmelden ajb. **Wil je mee eten?** Dat kan! Bestel je eten bij een van de 10+ foodstands naar keuze. Nadat je hebt besteld ontvang je een buzzer die afgaat op het moment dat het gerecht klaar is. Als de buzzer afgaat, kun je de bestelling ophalen bij de foodstand. Zo kun je samen genieten van de heerlijke culinaire gerechten die Foodhall Arnhem te bieden heeft. De bar biedt een ruime selectie aan drankjes en cocktails die passen bij de gerechten van de food stands. Gemiddeld genomen heb je voor €30 heerlijk gegeten. Datum/tijd: 28 mei 2026, 17:00 uur Locatie: **[Foodhall](https://foodhallarnhem.nl)**, Rijnkade 49, 6811 HB Arnhem Eten: Keuze uit meer dan 10 verschillende wereldkeukens. Kosten: Deelname is gratis. Je betaalt enkel voor je eigen eten en drinken. Betalen: Pin, contant of bitcoin (lightning). **Meld je aan** via deze meetup pagina zodat we weten hoe veel mensen er komen. Er is een beperkte capaciteit beschikbaar. Zo weten we zeker dat we niemand teleur hoeven te stellen. Tot dan, Bert, Bart, Peter en Mike

Join us as we get together to see Paul Rudd in the latest comedy-drama-musical from John Carney, POWER BALLAD! The film follows a washed-up wedding singer, a fading boy band singer and a stolen hit song. Here’s a description, trailer and plan for this event: DESCRIPTION: Rick, a washed-up wedding singer, and Danny, a fading boy band star, bond over music and a late-night jam session. When Danny turns Rick's song into a hit, Rick sets out to reclaim the recognition he believes he deserves. Power Ballad is written/directed by John Carney, the master of the modern musical and creative mind behind Once, Begin Again and Sing Street! It stars Paul Rudd, Nick Jonas, Peter McDonald, Marcella Plunkett, Havana Rose Liu and Jack Reynor. BUZZ & ACCLAIM: The film premiered to rave reviews at this year’s Dublin International Film Festival where critics call it “a sure-fired crowd-pleaser” that “just might be the feel-good hit of the year!” Others say, “Paul Rudd delivers a career-best performance in this charmer” that’s both “hilarious and deeply moving!” SUMMER OF ICE CREAM, VOL 2: SHAKE NO. 8! Ranked the #1 Ice Cream Shop in Columbus in 2024, this is the perfect place to kick off our Summer of Ice Cream and grab a sweet treat after the show! Their menu features an array of traditional, specialty and vegan shakes, hot cocoa, and more! You can check out their full menu here: [https://www.shakeno8.com/menu.php](https://www.shakeno8.com/menu.php) PLAN: We’ll plan for a 7pm-ish showing and will meet in the lobby area about 20 minutes before the show. Once showtime is announced, advance ticket purchase is advised! Once you have yours, please list your seat number in the Comments section of this event. We'll head to nearby Shake No. 8 immediately following the show! Should be a fun one, Dan

🎶 Ready for a night of music, laughs, and great company? Join us at Thunderwing Brewing for Music Bingo — a fun twist on classic bingo where songs replace numbers and the good vibes keep flowing! 🎵 Sing along, test your music knowledge, and enjoy a relaxed evening with the group. 📍 Please RSVP to reserve your spot: Text Renee at 614-257-9389 (We need a headcount so the brewery can plan staffing and seating.) 🪑 Arrive early to grab a seat — feel free to bring a camping chair for extra seating. 🍔 Food trucks are often on site, or you’re welcome to bring your own food. 🐶 Bonus: Dogs are welcome, so bring your pup along too! Columbus ski club membership not required for this event. CSC assumes no responsibility for the event or any injuries as this is organized by a third party.

Let’s meet and wander the galleries! General admission on Sundays is free.

Some trained COUNT volunteers work together once a month at RMH (http://www.rmhc-centralohio.org/volunteer.php) as Housewarmers (usually on the 1st Sunday from 1 – 5 PM). Some schedule other shifts at their convenience. You may try this out with less fuss by following a "Fast track" or go through the normal process. Fast track • Arrange a time to shadow a COUNT volunteer. Call Dave Nohle at 614-268-9558 (cell). • Show up and try it out. • Complete application, etc. later. Normal process • Complete an online application (http://rmhc-centralohio.org/volunteer/). • Attend orientation in advance. • At orientation you will complete forms agreeing to keep family/patient info private and allowing a background check and tour the facility. • Complete one training shift. Daily shifts are: morning 9 AM - 1 PM, afternoon 1 - 5 PM and evening 5 - 9 PM. • Schedule shifts online using the on the RMH scheduling system (http://www.volgistics.com/ex/portal.dll/?FROM=32895). The Ronald McDonald House (RMH) provides housing and meals for families with sick children. The Columbus RMH is the largest in the world with 137 rooms. COUNT has been volunteering there since May 2014. Housewarmers work with RMH guests to provide a home-like environment - greet, assist with family needs, answer phones, give tours, assist with checkin/checkout, prepare guest rooms after checkout, clean facility, laundry, restock supplies and staff the front desk. RMH Housewarmers volunteer at least one four-hour shift a month. All Housewarmers must complete an application and agree to a background check before they can be full fledged volunteers.

MCKS PRANIC HEALING® Level I In PRANIC HEALING® Level 1, you learn the basics of working with your energy aura, including learning to "scan," or feel the energy, to "sweep," or clean away congested energy, and to "energize," or supplement areas in your aura that have a pranic deficiency. PRANIC HEALING® has been taught to doctors, nurses, massage therapists, acupuncturists, chiropractors, shiatsu practitioners, and many others in the healing field. It has allowed them to heal confidently and consistently in the shortest learning time possible. These professionals find PRANIC HEALING® very effective and easy to apply. Other topics covered in PRANIC HEALING® Level 1: Energetic anatomy: You will learn to work with the network of chakras, meridians and auras to accelerate the healing processes of your body. Preventive healing: You will learn to remove the negative energetic patterns of a disease to prevent it from fully manifesting as a physical ailment. Self-Pranic healing: You will learn to apply these healing techniques to accelerate your own healing. Step-by-step techniques for ailments related to your: respiratory system, e.g., asthma,; circulatory system, e.g., heart ailments; gastrointestinal system, e.g., irritable bowel syndrome; musculoskeletal system, e.g., arthritis and back pain; reproductive system, e.g., menstrual problems. You'll also learn how to address common problems as migraines and sinusitis. Additionally, you'll learn to apply distant healing to loved ones who are not present in the room with you. All PRANIC HEALING® courses are "experiential," which means that you learn by actually performing the techniques and exercises in class - on yourself and those around you. During class, all the principles will be explained thoroughly and you will practice the techniques exhaustively so you will be confident in your ability to produce positive results when you finish the course. This is Day 2 of 2 Attendance at day one is required to attend day 2. The Course text book is Choa Kok Sui, "Miracles through Pranic Healing" Please bring this with you to class. PRANIC HEALING® Level 1 is a prerequisite to all other GMCKS courses. For those interested to review the class...Review fee is only $75!! LOOK AT THIS!! Review for FREE when you bring a new student to class with you.