Science & Technology

What Happened to the Energy Transition? To land a ship on a moving target, the moon, for example, from a moving object, the earth, requires an enormous attention to facts and a mastery of detail. Getting any of these wrong can lead to disaster. Climate science tells us we must transition to a zero carbon society—and fast. But are climate-deniers the only obstacle to that transition? We will discuss the work of economic historian Jean-Baptise Fressoz who suggests that even as we move to solar panels and electric vehicles, rather than “transitioning” to a zero carbon world we will continue to consume more, and more, and more and produce more carbon dioxide. Is there a way out of here? As harrowing as it sounds, its best to pay attention to the facts and master the details so we can discuss real solutions. Perhaps, a solution that depends on a transition in our ethical thinking. In-person and available on Zoom When: Sunday, April 12, 2026 Coffee available at 10:45 AM, Speaker begins at 11:00 AM Where: Green Hedges School 415 Windover Ave NW, Vienna, VA It's more fun in person (and the coffee is free), but you can participate by Zoom at [https://us02web.zoom.us/j/83422695892](https://us02web.zoom.us/j/83422695892) Jim Ball and his family are longtime members of Ethical Culture. In his retired life he writes, gardens, and rewilds his small corner of the world with native plants.

HHH Spring Edition. Does disappearing into the wilderness with a group of strangers put you on edge? Then come to a casual happy hour and get to know us first. This is a great time to meet your fellow outdoor enthusiasts and get connected - without needing to gear up. This time, let's go to DC and check out The Crown & Crow (Logan Circle). 7pm. The Crown & Crow is a massive underground bar with a speakeasy feel. The only signage outside is a gold emblem of a crow with a crown on it's head. Once you see this, follow the stairs down to the bar. Please update your RSVP if your plans change so that we have an accurate headcount. Thanks!

**THE POWER OF THE SUBCONSCIOUS OVER YOU** You are welcome to arrive 15 minutes early for refreshments! At the lecture "The Power of the Subconscious", the speaker will clearly and understandably explain topics such as: What is the exact definition of the Subconscious Mind? How does it inflict unwanted feelings and anxiety in you? What determines how much pressure it exerts on a person? What exactly is the goal of the subconscious? This is not just a lecture where you sit quietly and listen. It's interactive and LIVE, so you can ask questions at any time. And the most important topic: **HOW DO YOU TAKE CONTROL OF YOUR SUBCOUNSCIOU** This group is sponsored by the Dianetics Life Improvement Center. I

Climbers of all skill levels are welcome to Join "[Sends with Friends](https://www.instagram.com/sends_with_friends_climbing?utm_source=ig_web_button_share_sheet&igsh=ZDNlZDc0MzIxNw==)" rock climbing community for an indoor bouldering event at [Bouldering Project -DC](https://maps.app.goo.gl/m6okjpQsjeSxTqVj8) gym. The first 25 climbers who come in through the doors get in for free, after that you'll pay $15 for a day pass. Rental shoes and chalk bag is provided free of charge. If this is your first time using Bouldering Project-DC facility consider taking the Intro to BP that starts 7:15PM and includes a tour of the facility. You must sign the Bouldering Project waiver and read, understand, and agree to Sends With Friends release of liability form before participating in this event. Please do so beforehand to avid creating a line at the front desk. You can find Bouldering Project waiver here: [First-Time-Visit](https://boulderingproject.com/first-time-visit/) and Sends With Friends Release of Liability form below: \* \* \* \* **Sends with Friends Rock Climbing Meetup Waiver and Release of Liability** **NOTICE:** By signing up for this event, you agree to the terms outlined below and acknowledge the inherent risks associated with rock climbing activities. Participation in any event organized by this Meetup group is contingent upon your agreement to this release form. **1\. Assumption of Risk:** I, the undersigned participant, acknowledge and fully understand that rock climbing is a high-risk activity. I am aware that participation involves risks including, but not limited to, physical injury, permanent disability, or death. These risks may arise from, but are not limited to, natural hazards, equipment failure, human error, and the actions or negligence of others. **2\. Release of Liability:** In consideration of being allowed to participate in any activity organized by this Meetup group, I hereby release and discharge the organizer(s), co-organizer(s), event leaders, and all other participants from any and all claims, demands, actions, or causes of action arising out of or connected to my participation, including claims arising from negligence or gross negligence. **3\. Personal Responsibility:** I acknowledge that I am solely responsible for my own safety during these events. I will use my own judgment in evaluating the risks involved and will take appropriate precautions, including but not limited to: * Wearing appropriate safety gear. * Using reliable climbing equipment. * Following established safety protocols. * Refraining from participating in activities beyond my skill level. **4\. Medical Fitness:** I affirm that I am in good health and physically capable of participating in rock climbing activities. I assume full responsibility for any medical conditions that may affect my ability to participate safely. **5\. Indemnity Agreement:** I agree to indemnify and hold harmless the organizer(s), co-organizer(s), event leaders, and other participants from any claims, damages, or expenses (including legal fees) arising out of or related to my actions or participation in these activities. **6\. Photo/Video Release \(Optional\):** By signing this waiver, I grant permission for any photographs or videos taken during the events to be used for promotional or group-related purposes. (Participants may opt out by notifying the organizer.) **7\. Agreement to Follow Rules:** I agree to abide by all rules, instructions, and guidance provided by the event organizers and leaders. Failure to comply may result in my removal from the group. **8\. Acknowledgment of Agreement:** By joining any event organized by this Meetup group, I acknowledge that I have read and understood this waiver and release form. I agree that my participation in any event constitutes my electronic or physical signature to this agreement.

Venez apprécier l'ambiance chaleureuse d'une conversation en français autour d'un verre de vin et d'apéritifs à moitié prix. C'est ouvert à tous quelque soit votre niveau, que vous soyez débutant ou bien que le Français soit votre langue maternelle. ***GRAB A DRINK AND YOU WILL BE ALL SET TO FLEX YOUR LANGUAGE CAPACITY. YOU NEED TO GET AT LEAST A DRINK OR FOOD :) To get the event going and show support. We know that you like our events. P.S. : We have non-alcoholic drinks as well.*** It is irresistible, to enjoy French convo with half-priced appetizers, glass of wine and rail drinks. The Event is open to all levels of French language, from beginners to native fluency. We have a tiny venue and we hit capacity often and early arrival is suggested. We have the discretion to decide entry. ***AFTER THE HAPPY HOUR, WE HIT THE DANCE FLOOR! BRING YOUR DANCING SHOES, WE WILL DANCE THE NIGHT AWAY!***

This Art Walk is a monthly evening dedicated to creativity, connection, and community. Stroll through local galleries and studios, meet artists, enjoy rotating exhibitions, live art, and immersive experiences all while supporting the local arts scene. Come curious, stay inspired. Event details will be in the Ladies Group in WhatsApp. Join here: https://chat.whatsapp.com/H533SlZi8h70XjkN6iSEws?mode=gi_t

Title: Beyond Cryptography: Geometric Symmetry & Parity Stability Summary: Decoding Chaos: Using Quantum-Inspired Symmetry Metrics to Detect Stealth Attacks in High-Stakes Infrastructure. Agenda: Why symmetry matters after the proof is done. Symmetry as an Invariant Symmetry as a Security Primitive Trust as a Continuous Function Live Thought Experiment Engineering, Implications & Open Questions Move away from traditional bit-matching and discuss "Symmetry Drift." Explain how system states can be modeled as high-dimensional manifolds where an attack represents a geometric deformation.T(t)=f(symmetry stability,parity consistency,temporal coherence) Speaker: Vijay Krishna Vijay is a security engineer focused on runtime observability and symmetry drift in cryptographic systems. He is the founder of Vyapti Resonance and the creator of the Quantum Security Probe (QSP), a telemetry-driven integrity monitoring framework for post-quantum infrastructures. His work bridges theory, engineering, and long-lived system behavior, emphasizing measurable trust over binary verification. Vijay has 9 accredited licenses in Quantum Computing. Career Snapshot: Microsoft → DuPont → Rockefeller Capital Management → Morgan Stanley → New York Life → Founder, Vyapti Resonance Across this trajectory, Vijay has operated at the core infrastructure layer of organizations—cloud platforms, identity systems, distributed compute, reliability engineering, and governance frameworks. His work has consistently involved systems that cannot fail, particularly in regulated financial and insurance environments. This enterprise grounding strongly informs his academic and research outlook: quantum and AI systems must be operable, governable, auditable, and teachable, not merely theoretically elegant.

A beginner-friendly workshop on advanced AI, government policy, and how this new technology is evolving and impacting society. ​​​​**Free and open to the public — no technical background required** ​​​​In previous workshops, we've seen how AI is a transformative technology like no other, for better or for worse. Beyond the technology itself, however, government regulations and societal norms will inform the impact AI has on our world. ​In this workshop, we will explore what policies have been proposed, which have been implemented and why, and what the impact has been so far. How can we use these lessons to maximize the promise and minimize the peril of AI? ​​​​**Over the course of the workshop, we’ll explore:** * ​**Concepts and Goals:** What problems should AI policies be trying to solve? * ​​​​**Different Kinds of AI Policies:** What policies have been proposed so far? What are the pros and cons? * ​​​​**Political Landscape:** How are financial incentives and conflicting ideologies influencing AI policy? * ​​​​**Case Studies:** What can we learn from what's been passed so far? ​​​​**What you’ll get:** * ​​​​A clear, non-technical introduction to core ideas from AI safety, AI governance, and existential risk research. * ​​​​Small-group discussions and thought experiments that connect AI risks to everyday life, institutions, and incentives. * ​​​​A better mental model for evaluating headlines, hype, and claims about AI progress. ​​​​**Format & vibe:** ​​​​This is not a lecture it is an interactive workshop designed to help people think clearly about a topic that is increasingly important and moving very quickly. ​​​​Whether you’re new to AI, casually interested, or deeply unsure what to believe, you’ll leave with a clearer picture of *why* many researchers take AI seriously—and *what’s actually at stake* if we get it wrong.

[Re-Engineer Your LIFE!](http://www.myhealthsummit.com/) **Learn from Leading Voices in Holistic Health** A full day of expert-led education, practical tools, and nourishing experiences designed to support whole-person health and lasting lifestyle change. * Insightful sessions led by doctors, nutritionists, chefs, and holistic health practitioners * Practical strategies for prevention, healing, emotional wellness, mindset, and sustainable living * Real-world guidance on plant-forward nutrition and food preparation you can use right away * Gentle movement and mindfulness moments to support balance, energy, and stress reduction * A thoughtfully prepared plant-based lunch included, plus meaningful connection with a like-minded wellness community Register and see the speaker line-up here: [www.MyHealthSummit.com](www.MyHealthSummit.com) Vendors and Volunteers welcome! For more info contact us at: [contact@myhealthsummit.com](mailto:contact@myhealthsummit.com) PARKING: On campus visitor parking is available at the Howard Center Lot (2235 8th St NW) for $10/day (credit card only). Metered street parking is also available nearby and is enforced Monday–Saturday, 8AM–6PM. The Shaw–Howard University Metro Station is a short 7-minute walk from the venue. Public buses are also available.

The Petalpalooza Festival is part of the Cherry Blossom Festival events in DC. With daylong activities throughout the day, join us at The Thompson Hotel Rooftop for a happy hour followed by fireworks that will be scene from the rooftop on Sat., Apr. 4th at 6pm. We will meet up at the rooftop. Petalpalooza is a daylong street fair of live music, dancing and art, taking place at the Capitol Riverfront close to the Washington Nationals’ ballpark. The fireworks will soar over the Anacostia River at 8:30pm. The Rooftop at Thompson Hotel is arguably the best place to see the fireworks.

Wanna see fireworks, but can't wait till the 4th of July? Then come see the fireworks at the [https://nationalcherryblossomfestival.org/event/petalpalooza/](Petalpalooza) ! We'll meet at the Half Street / Nationals Ballpark entrance of Navy Yard Metro at 7:30 PM. The Navy Yard Metro is on the Green Line. I will post the Metro service adjustments before the event. I will take a COVID test. If I test negative and feel well, I'll be there. Otherwise, I'll stay home. The event will still go on regardless. If the forecast calls for rain or thunderstorms, I'm cancelling the event. See you soon, Jenny

🎉 **Puzzle Palooza: PUZZLES OF ALL KINDS WELCOME at the Board Room! 🧩** Join us for **Puzzle Palooza** in our puzzle swap series! Whether you're into jigsaw puzzles, crossword puzzles, sudoku, logic puzzles, or brain teasers, this event is for you. Bring any type of puzzle—whether it’s a challenging 1000-piece jigsaw, a captivating 3D puzzle, a fun puzzle book, or a unique brain-bending game—and swap it with fellow puzzle lovers. Let’s share the joy of solving and discover new puzzles to enjoy! 📅 **Date:** Sunday April 5, 2026 🕒 **Time:** 3:00 PM 📍 **Location:** [Board Room DC](https://boardroomdc.com/), 1737 Connecticut Avenue NW, WDC 20009, in the mezzanine. **Event Highlights:** 🌐 **Networking:** Connect with fellow puzzle enthusiasts over a game and some delicious drinks. It's a perfect blend of puzzles, games, and great company. 🧩 **Puzzle Swap Extravaganza:** Immerse yourself in a sea of puzzles as we transform the Board Room into a Puzzle Paradise. Bring your puzzles to trade, and discover hidden gems for your collection. 🎲 **Board Game Delights:** Enjoy the fantastic selection of board games available at the Board Room. Take a break from puzzles and explore a world of strategic challenges and social fun. **Agenda:** * 3:00 pm - 3:30 pm - check in and chat! * 3:30 pm - 4:00 pm - introductions and swap * 4:00 pm - 5:00 pm - social puzzling **How to Join:** 1. **Save the Date:** This is your ticket to Puzzle Paradise. Mark your calendar and get ready for an afternoon of puzzling delight. 2. **Location:** Board Room DC, known for its vibrant atmosphere and extensive game collection. [1737 Connecticut Avenue NW, WDC 20009](https://boardroomdc.com/) 3. **Spread the Word:** Invite your friends and fellow puzzle lovers. Let's make this Puzzle Paradise an unforgettable experience! \*\*\*Please note that if your puzzle is not swapped, you are still responsible for taking it home. **This is not a swap where you will be able to drop off puzzles and leave**\*\*\* For all of our Swap Series, please prioritize community safety. Ensure you're vaccinated before joining us. Your commitment creates a secure space for our shared love of cooking and good times. See you responsibly at the meetup!

FREE event [https://www.ccad.edu/chroma](https://www.ccad.edu/chroma) Friday, May 16, 3–7 p.m. CCAD campus, 60 Cleveland Ave, Columbus, OH Join Columbus College of Art & Design for *2025* *Chroma: Best of CCAD*, our annual campuswide exhibition showcasing outstanding student work from across the college’s academic programs. This faculty-juried show features select work from CCAD students of all class years, and is a can’t-miss end-of-year campus celebration recognizing their tremendous achievements. It’ll be a night of fun and entertainment, with interactive games, animation and film screenings, art symposiums, poetry and prose readings, and more (along with some of the best local food trucks). *Chroma* is free and open to all. Many exhibitions including... **Game Art & Design:** **DSB, first floor, Welcome Center lobby and Room 115**

This meeting will be a discussion of the book "the Science of Aliens" by Mark Brake

**The Data-Driven Brand: Using Analytics to Shape Perception** Can you use analytics to improve tacos? This being CBUSDAW, we think the answer is probably “yes”, but we’re not sure how to implement or test this theory. For our April meetup we’ve got Sara Kear, CMO of Condado Tacos, to investigate this delicious question. Sara will explore how she blends quantitative data and qualitative customer feedback to shape brand positioning and drive business decisions. We all know that marketing and analytics go way beyond attribution. Sara will show how Condado uses customer insights to inform product and pricing strategy. She’ll also highlight how Condado leverages customer feedback at scale to influence operational priorities, positioning marketing as the voice of the customer across the organization. In the last 12 years Condado has gone from one location in Columbus to 52 locations across 10 states, so we’re guessing there’s more to that growth than really good guac (though the guac probably helps). Ultimately, this talk focuses on the intersection of art and science—using data to inform creativity and build a brand that resonates with customers in a measurable way. **About Our Speaker** Sara Kear is Chief Marketing Officer at Condado Tacos, where she oversees brand, restaurant design, menu and pricing strategy, off-premise including catering, and customer data strategy. Since joining in 2021, she has helped grow the brand from 19 to 52 locations while building a data-driven marketing organization focused on loyalty and customer insights. Condado has since been named to the Inc. 5000, recognized as Breakout Retailer by Chain Store Age, and consistently ranked among FastCasual’s Top 100 Movers & Shakers. Thanks to our 2026 sponsors: [Clarivoy](https://www.clarivoy.com), [What Box Consulting Group](https://www.whatboxconsultinggroup.com), [Conductrics](https://www.conductrics.com), and [Piwik PRO](https://piwik.pro) More info at [cbusdaw.com](https://cbusdaw.com)

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)

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)

Central Ohio Radio Enthusiasts—CORE—is an informal community for anyone enthusiastic or curious about radio—whether you're new to radio and want to learn or you've been tinkering for years and want to share. Ham radio operators, GMRS users, Meshtastic fans, software-defined radio nerds, makers, and technical and non-technical folks are all welcome. No experience required or expected. This month we have **WiFi HaLow: Introduction and Practical Use** with **Alex Barbur**. Details are are [core.radio](https://core.radio).

NFT's are here to stay folks! This is a group for like minded people interested in understanding, leveraging, using, creating for, profiting from, trading too i suppose, NFT's.. everything around them, complexity, fear and exploits, best practices and more. **PLUS** This group will talk AI ART tools, techniques, artists, video, audio, prototypes and more in the AI assisted production space- ART specifically, but we can get into any aspect of some of the cooler things happening in AI in general.