Green Technology

Reboot Hour is a feel-good, drop-in happy hour for meeting great people, playing a few games, and resetting your week. **Come stressed, leave refreshed. Donate old tech too!** This is the **anti-event**: no agenda, no speakers, no pressure. Just good people + games + conversation. Quick community note: eWaste Warriors has been getting noticed — **Rob Link was named a RealLIST Connectors DC 2026 Top 20 Connector**. You’ll feel that energy in the room: a lot of those “connector” folks show up here to meet people and pull others in. **Optional bonus (1 minute): bring 1 working device** (phone/tablet/laptop/etc.). Donating feels good because it helps real people and keeps good tech in circulation. Accepted: phones, tablets, laptops, smartwatches, AR/VR headsets, game consoles, headphones. Not accepted: screens, CRTs, appliances, loose batteries. **When/Where:** Tue, May 26 • **5:00–7:30 PM** (drop in anytime) Carpool Ballston — 900 N Glebe Rd, Arlington, VA (Ballston Metro)

Come the whole time or if you just spend 30 minutes. All are welcome. You are welcome and encouraged to bring your own coloring supplies but, if you don't have any, I will have plenty and am happy to share! (coloring books, colored pencils, and markers). Part of the mission of this group is to provide us an opportunity to check out AND SUPPORT local businesses. So, please don't bring any outside food/drinks and, while purchasing something isn't at all a REQUIREMENT to participate in the event, I do strongly encourage you to try something from the vendor :) I look forward to seeing and meeting you there! ***\*\*DISCLAIMER*\*\*** Photos may be taken during the event to be shared here on Meetup so feel free to let me know if you'd like to be excluded from them.

**REGISTER AT THE LUMA EVENT PAGE!!!** https://luma.com/27ja5gwl Join us for an exciting talk by Mary Gibbs, Senior Applied Scientist at Relativity. ​ ​**​Agenda:** ​​6:00 - 6:30 PM - Welcome and mingle 6:30- 6:45 PM - Introductions 6:45 - 7:30 PM - Talk 7:30 - 8:00 PM - Wrap up **​​Description:** ​If you have ever shipped a model, watched your metrics improve, and later learned from your users that something was wrong, the metrics were always wrong. You just didn’t know it yet. An evaluation consists of three components, a benchmark, a scorer, and a claim about what a score represents. Each component has its own weaknesses. Benchmarks can suffer from narrow coverage, contamination, or saturation. Scorers are often chosen for ease of automation or computation rather than for their alignment with user outcomes. And the claim connecting a score to reality is rarely made explicit. These gaps compound across the model development lifecycle. When metrics improve, teams treat that as a signal and optimize directly against it, which is how a measurement problem becomes a model problem. This talk maps where evaluations can go wrong, considers counterarguments, and ends with practical advice for building better ones. **​Speaker Bio:** ​Mary is a Senior Applied Scientist at Relativity, tackling data science challenges in the e-discovery and legal tech space. She is also an organizer for Women and Gender eXpansive Coders DC (formerly Women Who Code DC), fostering a community dedicated to empowering women and nonbinary individuals to excel in their careers. Mary's experience spans various domains. She has developed data science solutions related to job search and career progression at Teal, cybersecurity challenges at LiveAction Software, and commercial and government consulting at Mosaic Data Science. Before venturing into the field of data science, Mary conducted and published research pertaining to the cellular and molecular mechanisms underlying neurodevelopment at the National Institutes of Health. In other words, she has dissected and imaged a lot of fruit fly brains. She holds a M.S. in Data Science from The George Washington University and a B.A. in Biological Sciences from Cornell University

Welcome. Come out and play! We meet on the 2nd, 3rd, and 4th TUESDAY of the month. Players of all skill levels are welcome. Bring a chess set if you can. Friendly group and a variety of skill levels are typical for each meeting. Adults of any age and children with a parent are welcome. Cohosted by Effie and Lawrence. Email us for updates: greenbeltchessclub@gmail.com Kids Night will be held on the third Tuesday each month. One of our most experienced chess enthusiasts and instructors, Gary Fok, and possibly other instructors, will be on hand to teach. (Adults are welcome as well!)

If you run an AI startup or you have a project or business idea, join us for first AI entrepreneur gathering of this group. Here is my Steve Kantor LinkedIn: https://www.linkedin.com/in/steve-kantor-594784. You? Feel free to connect. I was in original group started by Marc Pickett a decade ago and I am now a co-organizer. Text me 202-297-2393 if you register or cannot come to this event but want to connect with other startup founders. Help Each Other Anything is Possible

[Profs and Pints DC](https://www.profsandpints.com/washingtondc) presents: **“Artemis II and Beyond,”** on how the recent space mission fits into long-term plans for the Moon, with Michael J. Neufeld, retired senior curator for the Space History Department of the Smithsonian’s National Air and Space Museum. [Advance tickets: $13.50 plus sales tax and processing fees. Available at [https://events.ticketleap.com/tickets/profsandpints/dc-artemis-ii-and-beyond](https://events.ticketleap.com/tickets/profsandpints/dc-artemis-ii-and-beyond) .] NASA’s recent, spectacular Artemis II mission is a sign that the United States is serious about sending humans to the Moon again. Gain an understanding of how Artemis II fits in both past and planned lunar missions with historian Michael Neufeld, who was lead curator of the Smithsonian’s Destination Moon exhibit. He has taught at Johns Hopkins, Colgate, and other universities, and is the author or editor of nine books dealing with the history of technology. He’ll start by looking at the aftermath of the Apollo program of a half century ago and why it ended only four years after its first lunar mission. He’ll consider why no lasting lunar programs emerged from major announcements by two presidents, George H.W. Bush and George W. Bush, that astronauts would be going back to the Moon and on to Mars. His vividly illustrated lecture will then explore how Artemis is a product of a human spaceflight program that has changed dramatically over the past 50 years. We’ll look at how collaboration with Europe, Canada and Japan became integral to the shuttle and International Space Station programs, and how the rise of new commercial space companies such as SpaceX has enabled NASA to buy both space services and space craft. Both international and commercial partners are involved in the latest Moon efforts, with SpaceX and Blue Origin expected to supply the landers to take astronauts down to a planned base on the Moon’s South Pole. How soon will any of this happen? Probably not as quickly as NASA says, but the specter of a Chinese landing on the Moon by 2030 is one obvious reason to keep things moving along. We’ll look at the sustainability of the Artemis space program for at least the next decade or so. You’ll emerge from the talk with no doubt that exciting days are ahead for space fans. (Doors: $17, or $15 with a student ID. Listed time is for doors. The talk starts 30 minutes later.) Image: The Artemis II mission launch (NASA photo).

How about unbeatable Happy Hour, just for our group, on a weekend night? This is mainly a social event and it is organized in joint with my other meetups. We usually draw a big crowed and you might want to get hold of me, at the event, to know, where the green group is. We invite guest speakers on our Happy Hours, from time to time. If you are interested to speak on any green and sustainable issues, please let us know. We will arrange a forum for you.

A fabulous Sunday Happy Hour with half-priced appetizers, glass of wine and rail drinks, for a green convo. This is mainly a social event and it is organized in joint with my other meetups. We usually draw a large crowed and you might want to get hold of me, at the event, to know, where the green group is. We invite guest speakers on our Happy Hours, from time to time. If you are interested to speak on any green and sustainable issues, please let us know. We will arrange a forum for you. This is a perfect venue to mingle. The restaurant boasts an expansive outdoor patio, trendy lounge and contemporary dining area. A fusion of Sports Bar, Night Club and Hookah joint. All in one! GOOD PEEPS, GOOD GREENERS, GOOD FOOD, GOOD VIBE & GOOD LAID BACK SUNDAY. • Half Price Drafts; • $ 5 Domestic Bottled Beers • $5 Wines; • $5 House Drinks; • $6 Select Bar Bites; • $6 Mad Rose Margarita • $6 bar bites include: chicken quesadilla, burger sliders, wings, hummus and pita. METROING : Mad Rose is few steps from Clarendon Metro Station. However, please take into account Metro's Weekend Track Work & Service Adjustments. Check it on http://www.wmata.com/ and plan accordingly.

To secure your spot, purchase your ticket from the Eventbrite link ([https://www.eventbrite.com/e/green-and-sustainable-environment-happy-hour-tickets-882772264607](https://www.eventbrite.com/e/green-and-sustainable-environment-happy-hour-tickets-882772264607)[). RSVPing only on the Meetup Page doesn't allow you to attend the Event. ADVANCE TICKET PURCHASE IS REQUIRED.](https://www.eventbrite.com/e/green-sustainable-energy-environment-happy-hour-tickets-288764391067) ABOUT THE EVENT This Happy Hour is devoted to professionals in the Green, Sustainable Energy and Environment; to grow, interact, and learn from each other. It is designed to provide a professional environment to meet other professionals to broaden one's career. It is also for those interested in careers in the sector and are studying or intend to enter the dynamic world of green movement. HOW IT WORKS : We will try to assign areas for each represented INDUSTRIES AND SPECIALIZATIONS; and will direct attendees to their respective tables accordingly. All are welcome! However we don't guarantee the availability of a partner in that particular experience, you would like to exchange. Space is limited and advance ticket purchase is required. PLEASE BRING A BUSINESS CARD. ***Ticket price includes a Taco and House Margarita/House Wine/House Beer. Cash Bar afterwards (which means you pay as you go). Our signature drink Mer-Tini will be featured too:) Ask your bartenders.*** \- Come one\, come all; YOU CAN FLY SOLO TOO:\) This is the most friendliest event you have ever attended\! \- Feel free to invite your friends\. They don't necessarily have to be a member \- Celebrate your birthdays or your moments in life with us\. \- For bottle/table service email \(info@[merevents.co](http://merevents.co/)m) or text at (202) 368-1878. \- Event is 21\+ Payment Instructions : 1\. You should login from a PC to see the 'Pay Now' button\, after RSVPing\. Then hit the button\. 2\. Verify correct dollar amount for number of people you're paying for\. *3.* **If you don't have a Paypal account, proceed to the next page and scroll down to see "Pay with a Debit or Credit Card". Then turn off the button 'Save The Info and Create Your Paypal Account'*.*** 4\. If you have a Paypal account\, simply log in\, and pay as you normally would via Paypal\. How to Unblock the Pop-up Blocker on Your Phone Many of our patrons advised us that they have a Pop-up Blocker on their iPhones and it hinders them from buying tickets. To unblock, please follow the following steps : For Safari Users : 1\. Go to Settings\. 2\. Scroll down to Safari and click on it\. 3\. Select Block Pop\-ups and turn it off\. For Google Chrome Users : 1\. Open Google Chrome\. 2\. Click on the three dots and you will see many options\. 3\. Click on Settings\. 4\. Scroll down to content settings\. 5\. Select Block Pop\-ups and turn it off\. Refund & Ticket Resell Policy All sales are final. We only refund the full amount, if the event is canceled. If it is rescheduled, we will send an email to ticket holders advising that. A full refund will be given to those that let us know within 2 calendar days of the update email, if you are unable to make it on the new date. No refunds will be given after that time. However, you can sell your ticket to someone else if you are unable to attend. Please, feel free to post in the comment box for the event, that you have a ticket for sale. Work out payment between yourselves, and have the seller only send the organizer a message letting us know the full name of the person taking your spot. You must let us know two hours before the RSVP close time, on the day of the event.

◦Join us for a laid-back Sunday Brunch. The Brunch is All-You-Can-Eat buffet and a bottle of Champagne (750 ml) with Orange Juice. You make your own mimosa. Just only for $ 35.00 per person without tax & gratuity! It includes French toast, pancakes, waffles, omelettes made to order, Pasta, Salads, Roast Beef, Pork Ribs, oyster bar, cheese bar and Salmon, plenty of fresh fruit, yogurt, cakes, cookies, and pudding....mmmm! After brunch, we mingle and socialize. Closest Metro Station is Clarendon. Please take into account Metro's Weekend Track Work & Service Adjustments. Check it on http://www.wmata.com/ and plan accordingly.

Come on out to our monthly Park Club, this time at Huntley Meadows! We'll take a pleasant late late May stroll through the wetlands and woods, with your fellow Environmentally conscious folks, which was gifted to Fairfax County by President Gerald Ford in 1975 after a long and storied history starting with George Mason (yes, that George Mason). The park is home to abundant wildlife and is known for attracting many birds, amphibians, and plants that are considered less common in the region. Secondary-growth forest sprinkled with several small, native-grass and wildflower meadows surround much of the wetland habitat. If you've never been, it's not to be missed!

Join PSW Science® on May 29 at 8 PM as we welcome Michael Garrett (U. of Manchester) & Adam Thompson (NVIDIA). During the question and answer period, in-person attendees and live stream viewers may ask the speaker questions, and in-person attendees may also engage with the speaker during the post-lecture reception. Refreshments are served. For more information on this meeting, please visit: https://pswscience.org/meeting/2536 The meeting will be held in the John Wesley Powell Auditorium, adjacent to the Cosmos Club. The Powell Auditorium is located at 2170 Florida Avenue, NW Washington, DC 20008. Use of the Cosmos Club is restricted to the Powell Auditorium, the entryway to the auditorium, and the restrooms immediately outside the auditorium. Please note there is no onsite parking available. PSW Science, founded in 1871, is one of the oldest scientific societies in Washington D.C. Now, over 150 years later, we celebrate the Society's rich history and contributions to scientific discovery and cross-disciplinary collaboration. For information on how to become a member of PSW Science and membership benefits, please visit https://pswscience.org/join/

Want to mess with some electronics? Or perhaps contribute to HacDC's main group project? HacDC's latest event brings hardware projects to the community. We will focus primarily on the main project (Space Blimp!) but please feel free to bring some of your own projects to show off and work on!

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

QA or the Highway is a one-day, affordable, regional, professional conference featuring real-world experience and thought leadership in the QA and testing industry. This is a ticketed event please register here: https://www.qaorthehwy.com/ Featured Keynote Speakers: **Matthew-Hope Eland** **(Wizard at Leading EDJE)** \- An AI Specialist and Wizard at Leading EDJE who is known to teach software engineering\, AI\, and data science concepts in the most ridiculous ways possible\. Matt has used machine learning to settle debates over whether Die Hard is a Christmas movie\, reinforcement learning to drive the behavior of digital squirrels\, data analytics to suggest improvements to his favorite TV show\, and AI agents to play board games and create an AI agent with the personality of a dog\. Matt is the author of "Data Science in \.NET with Polyglot Notebooks" and "Refactoring with C\#" as well as several LinkedIn Learning courses\. Matt helps organize the Central Ohio \.NET Developer Group\, runs several blogs and a YouTube channel\, has a Master’s of Science in Data Analytics\, and is a current Microsoft MVP in AI and \.NET\. **Tatyana Arbouzova** **(CEO at Innovate QA)** \- Tatyana Arbouzova is an engineering and business leader with a strong background in Quality Engineering across multiple industries\, including Big Tech\, Healthcare\, and Entertainment\. She has held leadership roles at world\-class companies such as Microsoft\, VMware\, Disney\, and The Pokémon Company International\, where she focused on building quality\-driven cultures and scaling teams to deliver high\-impact products\. With decades of experience\, Tatyana has helped organizations transform their quality practices so teams can deliver software efficiently\, confidently\, and with measurable business outcomes\. Today\, Tatyana advises software companies on adopting AI to optimize quality practices and improve how software is delivered at scale\. She is also a passionate community builder and the founder of Innovate QA\, a thriving Seattle\-based community and conference for quality professionals\.

Community Backyards Workshop .Community Backyards Workshop - Westerville Join us for the Westerville Community Backyards workshop! This is a FREE class on how you can protect our waterways and environment with small changes in your gardening habits. We will discuss rain barrels, rain gardens, composting, and native plants. This workshop is presented by Friends of Alum Creek. By attending, any participating community resident can receive a voucher for a rain barrel, compost bin, or native plants for attending. Vouchers are limited to one per household per year. Registration in advance is encouraged but not required. * Location: Westerville Community Center, 350 N Cleveland Ave, Westerville, OH 43082 * Date and time: Sat, May 30, 2026 10:00 AM - 11:30 AM * Organizer: Community Backyards Program, (614) 486-9613, communitybackyards@franklinswcd.org (Free Workshop Registration: Registration is free. Registering in advance provides your information to Franklin Soil and Water ahead of time, so when you come to the workshop, we will have your voucher ready for you when you arrive) https://lp.constantcontactpages.com/ev/reg/h2w5ms8 **FAQs** **Our Community Backyards workshops are FREE and a great way to participate in the rebate program. Our workshops are typically 1 to 1 and a half hours long and held in-person. Our workshops cover the same content as the online course, but they are more detailed and allow the chance to ask questions and have discussions with the presenters and other residents. We occassionally have "advanced topics" classes where you dive deeper into one topic of Community Backyards such as invasive vs. native plants or rain gardens.** **Registration is encouraged but not required.** You can register in advance to receive your voucher at the workshop. If you don't register in advance, that's okay - you can still show up (unless otherwise noted - which is very rare) and sign up for a voucher at the class, and we will send you one via email or mail within a few business days after the workshop. **"Do I have to be a resident of that community to attend that workshop?"** Nope! Our workshops are open to everyone (unless otherwise noted - which is extremely rare). You can attend a workshop that best suits your schedule even if it is in a different community than your own. **"Why is registration closed?** Can I just show up?" Yes, you can show up without registering! We close registration typically 1-2 days before the workshop to give the vouchers and materials to the presenters. However, you are always welcome to just show up and fill out a short form to request a voucher at the workshop. If eligible, we will send one to you within 1-2 business days after the workshop. **Voucher note**: Classes are free for everyone but vouchers are for residents of Franklin county or participating community (list here: https://www.communitybackyards.org/participate) 2026 Participating Vendors: City Folk's Farm Shop, Fisher's Gardens, Leaves for Wildlife, Scioto Gardens, Hoover Gardens & Gift Center, and the FSWCD/SWACO Compost Bin Sale. *when redeeming your voucher at a vendor, Please bring a physical copy of your voucher to receive an immediate discount on your purchase. Additionally, to keep up with number of vouchers that are given out, we have changed the expiration date on the vouchers to 30 days

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** Like it or not, AI agents are now capable of turning a quickly written paragraph of requirements into a pull request that is ready to be integrated into real-world production applications and it's now our responsibility to make sure AI doesn't go rogue and take down prod - or corrupt our data by misunderstanding the requirements or our existing schemas. In this session we'll explore strategies to protect our codebases through unit and integration testing, documentation, and code review along with additional ways of providing context and guard rails to our AI agents as they carry out the work we've assigned them to do. By the time we're done, you'll have a firm grasp of the problem and understand some helpful options for protecting your codebase from vibe coding mishaps getting YOLOed into prod. **YouTube Link** TBD

* Who Can Attend \* The Central Ohio .Net Developers Group meetings are free and open to the public! All developers; professional, student, and hobbyist are welcome and encouraged to attend. * When we meet \* The Central Ohio .Net Developers Group meets on the 4th Thursday of every month. * Where we meet \* Please check our Meetup group link below for the latest location details! * Join our Meetup Group \* https://www.meetup.com/Central-Ohio-NET-Developers-Group-CONDG/

Couldn't make Knowledge? Or want to debrief the dancing robots or Autonomous Workforce? Join us for a Knowledge '26 recap, insights sharing, a couple rounds of golf, and fun at Topgolf. As always, drinks and food will be provided. More details to come — mark your calendar, RSVP, and save your spot today!

The number of ticks and tick diseases in Ohio have quickly multiplied over the last 10 years. Dean Kreager discusses tick species, tick pathogens, tick-borne diseases, tick bite prevention, and proper tick removal. Kreager is an Agriculture and Natural Resources Educator with OSU Extension in Licking County * Lakewood Public Library (in Hebron)- May 26 at 7pm [https://events.lickingcountylibrary.org/event/tick-talk-29621](https://events.lickingcountylibrary.org/event/tick-talk-29621) * Johnstown public library at 7:00 pm June 8 [https://events.lickingcountylibrary.org/event/ctick-talk-29622](https://events.lickingcountylibrary.org/event/ctick-talk-29622) Free to attend, no RSVP needed