Global Warming

**Come try quadball - a mixed-gender sport open to anyone and everyone regardless of gender, ability, or background.** Quadball, formerly quidditch, features players on each side aiming to outscore their opponents by throwing a volleyball through one of three opposing hoops, whilst defending their own hoops with tackles or knocking out opponents with dodgeballs - all while on a broom. **[Short Video on How To Play Quadball](https://www.youtube.com/watch?v=tKUZ9LLH-_c)** These sessions are casual mixed games, and are very beginner friendly, so this is a fantastic opportunity for new people to get involved! Despite our quidditch origins, quadball is very much a sport unto itself and has no relation to or any involvement with Harry Potter or JK Rowling. We celebrate the inclusion of members of the LGBTQ+ community and welcome people of **all** backgrounds and gender identities to get involved. --- **These sessions are designed to be casual and easy to get involved with** * Each session will start with a small warm up, alongside a brief introduction of the rules for newer players. * Players will be sorted into teams, and we'll have several mixed games across the evening (sunlight depending) * Games will run for 20 minutes each, split into two 10-minute halves. * Afterwards we'll head to either The Finbsury or the Twelve Pins to relax, hang out, and get to know the other players. **Please bring** * Suitable athletic or outdoor footwear * *Trainers or Football Boots* * Suitable clothing for exercise Whether you’re brand new to sport, a seasoned athlete, or just wanting to give something new and interesting a go - this is the place to be!

Something's shifted. The people who've spent years deep in data - the analysts, the engineers, the consultants - are building with AI agents now. **And it's the most exciting thing in a decade.** New tools. New workflows. Whole new ways of thinking about what data work even means. Everyone's experimenting. Everyone's learning. **Nobody's done this before.** We couldn't find a community in the UK for people doing this work. So we're starting one. In pubs, with laptops, sharing what's actually working. No slides. No pitches. No lanyard energy. Just people who build things, showing each other what they've built. **Bring your terminal. Bring your questions. Bring the thing that's half-working and you can't figure out why.** More at [swarm.org.uk](https://swarm.org.uk/)

🎉 Come along to the London Scala Talks! 🎉 In this event you'll hear from Caroline Morton and Katrina Petrevice. **Agenda** 6:00pm - 🥤 Doors open. Come along and grab a drink! 6:35pm - 🗣️ Introduction 6:40pm - 🗣️ Katrina Petrevice: Caching in Scala using Ref 7:20pm - 🍕 Intermission: Join us for some free food and drinks! Vegan and vegetarian options are provided. Let us know if you'd like something special - we'd be happy to accommodate. 7:50pm - 🗣️ Caroline Morton: Accidental Functional Programming in Rust (From an Epidemiologist's Perspective) 8:30pm - 🥤 Socialising: Grab a drink and let's discuss the talks. 9:00pm - 🍻 Join us in a pub to discuss the talks! 🌐 **This event may have a live stream** Watch this space for more details. **🗣️ Katrina Petrevice: Caching in Scala using Ref** Caching in memory is often one of the first strategies used to improve system performances. However, implementing caching in a purely functional way introduces unique challenges, specifically around state management and testability. In this talk, we will look at how to utilise functional programming principles with [Ref](https://typelevel.org/cats-effect/docs/std/ref), while maintaining clarity and composability. We will also deep dive into some common pitfalls and look into practical ways to test Ref effectively. ⭐ Katrina Petrevice ⭐ Katrina comes from a non–computer science background and was first introduced to Scala while working at JPMorgan. She credits much of her Scala knowledge to hands-on experience within her team, where she works on building and maintaining data pipelines and managing data systems. Since then, she has developed a strong interest in functional programming and now co-leads the Functional Programming Group at JPMorgan, where she helps share knowledge and foster a community around these ideas. **🗣️ Caroline Morton: Accidental Functional Programming in Rust (From an Epidemiologist's Perspective)** I don't have a background in functional programming - and I never set out to write it. But somewhere between writing trait-based epidemiological pipelines, composing data transformations, and leaning hard on Result, enums, and pattern matching, I started hearing from others: “That's pretty functional.” In this talk, I'll explore what it means to write “functional-ish” Rust as someone solving real-world scientific problems. I'll walk through the patterns I reach for - like chaining iterators, avoiding shared state, and embracing expressive types - and reflect on which functional programming ideas emerge naturally in Rust, even if you're not trying. I'll also share how designing for epidemiologists - most of whom are used to chaining functions in Python (like Pandas) or R - has pushed me toward creating ergonomic Rust APIs with Python and R bindings. These tools aim to feel familiar to scientists while leveraging Rust's power and safety under the hood. This is a talk for functional programmers curious about Rust, and for Rustaceans wondering if they've been functional all along. No formal theory required - just real code, real use cases, and a pragmatic perspective from someone building public health tools in Rust. ⭐ Caroline Morton ⭐ Dr. Caroline Morton is a medical doctor, epidemiologist, software engineer, and PhD candidate specialising in synthetic data, epidemiology, and Rust. With 60 peer-reviewed papers and two books on software, she combines deep technical expertise with a commitment to improving scientific workflows. Caroline co-founded the first [Women in Rust](https://www.meetup.com/women-in-rust/) group, fostering diversity and encouraging more women to explore opportunities in systems programming. She leads an open-source project improving codelist management in epidemiology using Rust, creating efficient, reliable tools for health data research. Her PhD focuses on synthetic data methods for epidemiology, particularly using Rust to generate large, realistic datasets. A strong advocate for open science and reproducibility, she contributes extensively to improving software practices through publications, workshops, and open-source projects. ———————————————————— 🗣️ Would you like to present, but are not sure how to start? Give a talk with us and you'll receive mentorship from a trained toastmaster! Get in touch through [this form](https://forms.gle/zv5i9eeto1BsnSwe8) and we'll get you started 🏡 Interested in hosting or supporting us? Please get in touch through [this form](https://forms.gle/3SX3Bm6zHqVodBaMA) and we can discuss how you can get involved. 📜 All London Scala User Group events operate under the [Scala Community Code of Conduct](https://www.scala-lang.org/conduct/). We encourage each of you to report the breach of the conduct, either anonymously through [this form](https://forms.gle/9PMMorUWgBnbk1mm6) or by contacting one of our team members. We guarantee privacy and confidentiality, as well as that we will take your report seriously and react quickly.

***[We're leaving Meetup! Going forward, tickets on Meetup will be limited. We encourage you to register via our Luma calendar instead, where the full number of tickets will be available.](https://luma.com/ck2etymg)*** **Agenda** 06:00pm - Doors open 06:30pm - Welcome 06:35pm - [Mariia Borysova](https://www.linkedin.com/in/maria-borysova/), Senior Product Designer at Amazon, "Storytelling in AI" 07:00pm - Break 07:15pm - [Celeste Horgan](https://www.linkedin.com/in/celeste-horgan/), Senior OSS Developer Advocate at Snowflake, "Apache Spark Pipelines: Adventures in Raccoon detection" ​07:45pm - Lightning Talk: [Sneha Kalaivanan](https://www.linkedin.com/in/snehakalai/), Senior Product Manager at Tesco, TBD **Please note you will be unable to enter the venue before 6.00pm.** RSVPs will close 24 hours before the event, you may be unable to register after this time but you can still watch online. If you can't join us in person you can watch remotely via [our YouTube channel](https://youtube.com/@ai-signals-community). **Our hosts may require that we provide a list of all attendees, please ensure that you register with a name that matches your government issued ID or bank card: if you do not we cannot guarantee you entry to the building.** Please RSVP for the event well in advance if you plan to attend in person and unRSVP if you can no longer attend as limited spaces are available.

Register: [https://luma.com/hack-night-tessl-may13-2026?utm_source=neo4j](https://luma.com/hack-night-tessl-may13-2026?utm_source=neo4j) ## What's Hack Night? ​Five hours. One room full of builders. Zero fluff. As many demos as we can. ​Hack Night at Tessl is a London evening for people who would rather build than posture. You show up with an idea, find a team if you want one, spend a few focused hours shipping with a DJ in the background, and demo what you made before the night ends. Then we head to the pub. ​**When**: May 13\, 2026 \| 4:00 PM \- 8:45 PM BST **Where**: Tessl office, London ## Here's How It Works ​**4:00 PM - Doors Open** Check in, grab food, meet other builders, form groups, (or solo hack if you want) and decide what you're making. ​**4:30 PM - Opening Context** Quick welcome from the host and venue partner so everyone knows the flow for the night. ​**5:00 PM - Short Technical Remarks** If there are host or sponsor remarks, they stay short. The point is to get useful context, then get people building. ​**5:30 PM - Build Time** Heads down. Music on. Ship something. Use the time to test an idea, explore a tool, or finally build the thing you've been sitting on. ​**7:30 PM - Demo Time** Show what you made. Get feedback. See what everyone else shipped. ​**8:45 PM - Wrap Up** Final demos, shout-outs, and a clean finish to the night. And of course, Pub! We're heading to a pub nearby for a pint and a proper debrief. Come if you want to keep the conversation going.

**Kindly note that this is a paid event and the average number of attendees for our events is 60-70 people. You can register on [https://www.eventbrite.co.uk/e/international-trade-connector-global-trade-business-networking-event-tickets-1988226778817?aff=meetup](https://www.eventbrite.co.uk/e/international-trade-connector-global-trade-business-networking-event-tickets-1988226778817?aff=meetup)** Connect with global trade experts at our London International Trade & Business Networking event. Build partnerships & grow your business **The Business Networking Event for Global Ambition** The International Trade Connector® is the ultimate networking event for entrepreneurs, business professionals, and solution providers who are ready to think beyond borders. ✈️🌐 Whether you're exploring new international markets, navigating cross-border operations, or offering services that support global expansion, this event connects you with the right people to accelerate your success. 🤝 ### **Sponsored by APGB Boutique Consultancy** APGB is a specialised London-based advisory firm connecting UK investors with development projects across Portuguese-speaking African countries. 🇦🇴🇲🇿🇨🇻 They also support businesses from Africa and the UK in securing investors, entering new markets, and scaling internationally. 📈 Expect meaningful conversations, practical insights, and high-value connections to help you build partnerships, discover solutions, and expand your global footprint. 🌏✨ **Join us to connect with like-minded professionals and build the bridges you need to thrive internationally.** 🌉 ## **👥 Who Is This Event For?** Ideal for professionals involved in global growth and international business, including: * 🚀 **Entrepreneurs, Startups & SMEs** expanding abroad * 🌐 **International Trade Specialists** * ⚖️ **Legal & Compliance Experts** * 💼 **Tax & Accounting Professionals** * 🧭 **Market Entry & Localization Consultants** * 🚚 **Logistics & Supply Chain Experts** * 🎯 **Marketing & Branding Agencies** * 🌎 **Recruitment & HR Professionals** * 🏢 **International Real Estate & Infrastructure Advisors** * 💳 **Financial Institutions & Fintech Providers** * 💻 **Technology Companies** enabling cross-border operations * 🏛️ **Government & Trade Bodies** * 💸 **Investors & Venture Capitalists** * 🎓 **Education & Training Providers** * 📰 **Media, PR & Communications Professionals** * 🤝 **Network Builders & Global Community Leaders** A diverse, high-energy environment designed to inspire collaboration and global opportunities. ## **📱 Exclusive WhatsApp Networking Group** All confirmed attendees receive access to a dedicated WhatsApp group, opened **24 hours before the event**. Inside the group, you can: * 👋 Introduce yourself early * 💬 Discuss your goals and challenges * 📅 Plan who you'd like to meet in advance A simple way to maximise your networking success. ## **🎙️ Meet the Host** **Alice Santos**, founder of **APGB**, a market-entry consultancy specialising in Lusophone countries (Angola, Mozambique, Cape Verde, São Tomé and Príncipe, Guinea-Bissau). APGB connects professionals, projects, and opportunities — supporting compliance, partnerships, and sustainable growth. 🌱🌍 ## **🎉 Complimentary Access to London Connector®** Your ticket includes **free entry** to the London Connector® event from **6pm**. Two synergistic events, **one ticket** — double the connections, double the opportunities! 🔗✨ ## **📲 WhatsApp Group** On the day of the event, attendees will receive an email invitation to join the exclusive Ukrainian Connector® WhatsApp group to continue conversations before and after the event. ## **👔 Dress Code** Business attire or smart casual. No T-shirts or trainers. ## **ℹ️ Refund Policy** Advance tickets are discounted and non-refundable but may be reassigned to another person if you are unable to attend. ### **Event Disclaimer 📸** Photos and videos may be taken during the event for use across social media and promotional materials. * [United Kingdom Events](https://www.eventbrite.co.uk/d/united-kingdom/events) * [Greater London Events](https://www.eventbrite.co.uk/d/united-kingdom--greater-london/events) * [Things to do in London](https://www.eventbrite.co.uk/ttd/united-kingdom--london) * [London networking](https://www.eventbrite.co.uk/d/united-kingdom--london/networking) * [London Business networking](https://www.eventbrite.co.uk/d/united-kingdom--london/business--networking)

After Thursday's election results, I have to go to this talk. I don't know anything about MP Liam Byrne but the LSE put on interesting talks. Looking forward to this one. Hosted by the International Inequalities Institute The LSE offer lectures that are open to the public (£3 attendance fee applies) on a variety of subjects. Let's meet outside Holborn tube station, just opposite the main entrance on Kingsway, next to the hat stall. We will walk down together at 6.10pm on the dot. Please be on time, the venue can be at capacity at 6.15pm! Please register for your free entrance ticket/QR code (Meetup attendance fee applies), they are asking a couple of questions: [https://www.lse.ac.uk/events/populists](https://www.lse.ac.uk/events/populists) Please note there is an **attendance contribution of £3** which goes towards the yearly Meetup platform fee, and our organisers voluntary time, both necessary to keep this club alive and running! This fee will be split 50/50 between the host, Giselle, and the group organiser Dul, thank you. \*\*?**?Blue Diamond Membership** If you like this event, we encourage you to join our ?*?Blue Diamond Membershi*p, for a symbolic £10/year towards making the club sustainable in the long run. This will give you some extra benefits beyond helping to keep the Club running, **including but not limited to waiving all Meetup / organisational fees set up per single even**t until next Meetup's Fee renewal (September 2026) You can send us your Blue Diamond Member contribution via Revolut [revolut.me/dulo](http://revolut.me/dulom) Or bank transfer to Dulcinea Ortiz. 04-00-75 acct 0759203 Please include your Meetup name as reference -- ⚠️No Show Policy London European Club is run by dedicated volunteers, whose time is important and whose efforts towards keeping the Club active must be respected. If you don't show up to three events that you have RSVPed to, you will be banned from the Club Changing your RSVP in the last 24 hours prior to the event is strongly discouraged

**The Unscented Transform: theory, extensions and practical application to Bayesian inference** We are delighted to have John Whitamore back at the Bayesian Mixer. Please register here: https://www.tickettailor.com/events/bayesianmixer/2154878 **Abstract:** How can we perform Bayesian inference without resorting to slow random sampling methods? Isn't there a nice, pragmatic way to use the geometry of a problem to use only a very small number of samples, placed deterministically? Isn't there a good, straightforward way to implement Bayesian models in practical settings? This talk explains the real-world problems that can be solved by the Unscented Transform. It begins with an intuitive introduction to Bayesian methods, discusses the Unscented Transform and connects the ideas to geometry, finite elements analysis and deep learning. **Bio:** John Whitamore is a Senior Data Scientist at Simply Business, a leading UK InsureTech firm. He has previously served as Head of Data Science for a leading food retailer, as Head of Trading and Systems for an investment management company and as Global Head of Convertible Bond Trading for a European investment bank.

We have a chance to talk about today´s realities and express our views about some topics of great importance about events that are shaping and affecting our daily existence. The speed of change is acelerating on a daily basis and many of the things we thought could not happen are actually happening. The only certainty is uncertainty.

Meet fellow early birds. Get a big dose of nature: wild sky, abundant green space, and occasional wildlife. And then warm up in a nearby cafe. Conversations fuelled by early morning light and coffee tend to be good ones. **The plan:** * meet at 7AM at the top of **PRIMROSE HILL** * take in the view for a little while (depending on how cold it is) * walk to ROOTS, a friendly café on Regents Park Road * warm up with coffee (10% off) Become part of our community of regulars, or just drop by for a one off experience. We meet frequently - sometimes weekly, sometimes fortnightly - to create and sustain community. New people are always welcome :-) **[WHATSAPP GROUP](https://chat.whatsapp.com/DPkYXvrP6IhFrSRDiQACLC)** to keep up to date **[INSTAGRAM](https://www.instagram.com/thesunriseclubetc)** to see what these meetups look like **[SUBSTACK](https://experimentsingroupwisdom.substack.com/)** for the newsletter and occasional extras **[WEBSITE](http://www.alltogether.one/)** for all other groups We will be easy to find because we will be at the top of the hill with a big red flag that says 'THE SUNRISE CLUB' and a sign that says 7AM SUMMIT If you would like to further support these meetups, please [subscribe to the newsletter](https://experimentsingroupwisdom.substack.com/) and [follow us on instagram](https://www.instagram.com/thesunriseclubetc/) :-)

Have you ever wanted to get together outdoors and chill out amongst good company whilst being immersed within nature & amazing weather? If so, then this is the right event for you. Welcome to another one of the CHILL events where you have the opportunity to settle in the parks, form friendships, socialise, have a picnic and so much more whilst being immersed within the luscious greenery, botanicals and the gorgeous weather. 

With this particular chill event, we will be settling in Kensington Gardens. Kensington Gardens is another royal park which offers some beautiful greeneries and botanical gardens within. It is also a soothing place to relax and socialise. Depending on the aura and if the event goes well, we may do an aftermath and let democracy decide. My fellow explorers, if you enjoyed the event, I’m more than happy to accept any donations which of course are optional but will go a long way to help me unlock and deliver even more exciting and engaging events and resources: https://www.paypal.me/calvinjoy 

WHAT - Chill at Kensington Gardens
WHERE - Kensington Gardens
WHEN - 6pm - 9pm
MEETING POINT - Kensington Gardens
NEAREST STATION - Lancaster Gate Station
REQUIREMENTS - Just your good behaviour is all and whatever is listed above for the walk. Maybe bring your ID if we do an aftermath. Disclaimers: Please be on your best behaviour and respect one another. This group doesn’t tolerate any misbehaviour and misconduct. Should such a thing take place, you will be removed. If you ask a question that either already has the answer to it or doesn’t relate to the event at all, I won’t respond. Whenever an event takes place, I will cut off contact 20 minutes after the event commences. If you message even 1 minute after the cut off time, I won’t be available as I’m conducting the event. There will be photography and videography by myself so if you are photo conscious and/or do not want to be in the video, do kindly inform me and I’ll try my utmost best to not involve you in the picture. Let’s all be responsible but please be aware you come at your own risk. Do be mindful of your possessions, belongings and most importantly, your safety. The ‘London society of explorers’ accept no risk of liability at this event.

**History** The history of [Blendon Woods Metro Park](https://www.metroparks.net/parks-and-trails/blendon-woods/) began long before its 1951 opening, rooted in a landscape of rugged ridges and deep ravines that made the land unsuitable for traditional farming. In 1945, a report proposing a metropolitan park system for Franklin County specifically highlighted these cliffs of Bedford Shale as some of the "wildest land in the vicinity". Following this recommendation, the recently formed park district purchased the first 229 acres in early 1949. Because the terrain was so uneven, developers had to cut a mile-and-a-half-long roadway through dense woods just to bring in heavy equipment. This initial preservation effort ensured that the mature second-growth hardwood forests remained largely untouched by the urban expansion spreading toward Westerville. Opening day arrived on Labor Day, September 3, 1951, marking Blendon Woods as the second park in the Columbus and Franklin County Metro Parks system. The final push to open was a frantic race; the State Highway Department only finished the primary gravel access road four days before the gates opened. Early staff members, consisting of just four full-time employees, had to hand-dig pit toilets and learn construction skills on the fly to build the first picnic shelters. Despite the dusty conditions and limited facilities, the park was an immediate success, drawing massive crowds from across Central Ohio. By the end of the 1950s, annual visitation had already climbed to over 190,000 people. As the surrounding suburbs grew in the 1960s, the park faced severe overcrowding that threatened its natural habitats. In response, Franklin County voters passed the first Metro Parks levy in 1960, providing the funds necessary for a decade of steady expansion. During this era, the park nearly doubled in size, growing from 264 acres to over 570 acres by 1968. Planners also addressed a critical water shortage by collaborating with the U.S. Soil and Conservation Service to build a lake in 1964. This body of water originally served as a temporary reservoir before its role shifted toward conservation and wildlife support. The 1970s marked a transition toward the specialized wildlife and educational focus for which the park is known today. In 1971, the Walden Waterfowl Refuge was established around the 11-acre Thoreau Lake, creating a sanctuary that remains restricted to provide a quiet habitat for migratory birds. A formal nature center was also developed during this period, expanding on the guided Sunday walks that had been a park staple since the early 1950s. The park’s famous "Monarch Mansion" also became a prominent fixture, starting a long tradition of raising and releasing thousands of monarch butterflies each September. These initiatives cemented the park’s reputation as a premier destination for birders and nature enthusiasts. In more recent decades, Blendon Woods has continued to modernize while maintaining its wilderness character. The 10-acre Natural Play Area was added in 2017, encouraging kids to explore the ravines and woods off-trail. This was followed by the opening of a $1.5 million inclusive playground in April 2025, designed to accommodate children of all physical abilities. The nature center also underwent major renovations to include immersive, three-dimensional exhibits and a new butterfly house. Today, the park encompasses 653 acres, preserving a unique geologic and biological corridor amidst the bustling Westerville and Northeast Columbus area. **Map of the Park** Here is a map of [Blendon Woods](https://www.metroparks.net/wp-content/uploads/2025/05/BLN_map_Inclusive-Playground-and-Butterfly-Trail_May-2025_1980px.png). **Summary** For this event, we will hike the Lake View, Hickory Ridge, Ripple Rock, Overlook, Brookside, and Sugarbush Trails. This sounds like a lot, but it will really be only a little over five miles. Blendon Woods has a few hills here and there, but it's not one of the more strenuous metro parks. **Where We'll Meet** We'll meet just in front of the Nature Center. This is about a mile into the park from the main entrance. You have to go past the Ranger Station and the Shadblow Reservable Area to get to it, so don't stop too early at the Ranger Station and get it confused with the Nature Center. **After the Hike** Afterward, we will head over to [Forbidden Root Restaurant & Brewery](https://forbiddenroot.com/restaurants/columbus-ohio/) at Easton for [drinks](https://forbiddenroot.com/restaurants/columbus-ohio/#dinner-menu) and [food](https://forbiddenroot.com/wp-content/uploads/Cbus-Food.pdf). We should be there by 5 if you can't make the hike and just want to join us for drinks. The brewery's actual address is [4080 Worth Ave, Columbus, OH 43219](https://www.google.com/maps/place/4080+Worth+Ave,+Columbus,+OH+43219/data=!4m2!3m1!1s0x88388a86d10b6619:0x4d42b470a5cf11d3?sa=X&ved=1t:242&ictx=111); however, I recommend pointing your GPS to the [Worth Garage](https://www.google.com/maps/place/Worth+Garage/@40.0542293,-82.9137962,17z/data=!3m1!4b1!4m6!3m5!1s0x88388b4df6082825:0x17582f0eccd9dda1!8m2!3d40.0542293!4d-82.9137962!16s%2Fg%2F11rzfvvv8b?entry=ttu&g_ep=EgoyMDI2MDQxNS4wIKXMDSoASAFQAw%3D%3D) across the street. Parking in this garage is free as long as you're not on the first floor, and it is literally right next to the brewery.

Join us this Thursday (5/14) at 6:30 pm at Rocky Fork Metro Park in Westerville as we walk about 2.5 miles of a fully paved trail. The Beech Woodland trail is a flat yet scenic trail with a variety of landscapes. Let’s take it in together!

Sleep in on Sundays. When you've had your fill of pajama-time, roll out and have some tasty brunch with your fellow Humanists!