Green Technology

[Profs and Pints DC](https://www.profsandpints.com/washingtondc) presents: **“What Digital Detectives Find,”** on the afterlife of your digital data and the methods of those who investigate it, with Jim Jones, associate professor at George Mason University and cyber security and digital forensics expert. [Advance tickets: $13.50 plus sales tax and processing fees. Available at [https://events.ticketleap.com/tickets/profsandpints/dc-digital-detectives](https://events.ticketleap.com/tickets/profsandpints/dc-digital-detectives) .] What happens when you delete digital data such as a picture, video, or email message? The truth is that “deleted” doesn't mean “gone,” and digital forensic investigators can extract and make sense of the residual fragments left over from data often assumed to be gone forever. Learn about the field of digital forensics—and the lessons it offers those who worry about sensitive data being exposed—with Jim Jones, who has been a cyber security and digital forensics practitioner, researcher, and educator for more than 30 years. You’ll learn how all investigations today, criminal and otherwise, to some degree involve digital forensics, an interdisciplinary field that draws from computer engineering, computer science, information technology, law, and ethics. Digital forensics doesn’t just respond to specific incidents, but also seeks out threats within organizations, analyzes malware, and buttresses cyber security. Much of the work of Dr. Jones, his colleagues, and students involves examining digital systems of all types to understand how data persists and decays and how it can be found and recovered. Dr. Jones will discuss how what happens to the digital data that you deleted depends on the type of device you are using, along with a host of other factors. You'll learn how digital data is stored on different devices and what does and doesn’t happen when you delete that data. You'll see examples of data extracted from different devices, demonstrations of what can be inferred from these remnants, and how investigators can tell if such remnants are genuine or not. Finally, you'll learn about strategies to mitigate the risk of exposing sensitive data. Dr. Jones will sort those that work from those that don’t. (Doors: $17, or $15 with a student ID. Listed time is for doors. Talk starts 30 minutes later.) Image: A digital forensics examiner works with evidence in the FBI’s New Jersey Regional Computer Forensics Laboratory (FBI photo).

**Now is the Time for Action!** ​The US must lead the way on regulations to ban unsafe superhuman AI! ​Humanity stands at a crossroads. Unless we work together, reckless development of artificial intelligence (AI) could endanger us all. A handful of companies are racing to be first to build superintelligent AI – systems vastly more powerful than human beings. Meanwhile, leading AI scientists and whistleblowers warn that these systems could escape our control and cause the end of human civilization. ​But this is not inevitable. We can make the wise choice. Rival nations have worked together in the past to reduce nuclear arsenals, restrict chemical and biological weapons, reject human cloning, and save the ozone layer. We must do the same now for superintelligent AI. ​Join PauseAI at our US Capitol Day of Action. As our volunteers from across the country meet with their representatives, we will gather before the Capitol Building to demand regulations on unsafe, superintelligent AI. ​We will be gathering on the West Front Lawn of the US Capitol Building, on Monday, April 13th, 4-6 PM. This demonstration will be fully permitted by the US Capitol Police; it will be a peaceful, lawful, and respectful call for Congress to protect their constituents. ​For more information, check out [pauseai-us.org](https://pauseai-us.org/?utm_source=luma). ​Join us and make your voice heard. Help us ban unsafe AI!

Free Full Body workout! We offer body weight, heavyweights, cardio/ Hitt/ Boxing and personal training. Nutrition plans health & wellness coaching as well. For more information and to redeem your free trial class and fitness analysis, contact Coach L at 365dmvfitnesstraining@gmail.com or (301) 747-3622.

Join us as we do an invigorating outdoor walk and talk in Historic Greenbelt MD. Our goal is to walk twice around the 1.4 mile path. Should take about an hour. Afterward, those of us interested will head to nearby Cedars of Lebanon restaurant for lunch and conversation. The address for GPS is Buddy Attic Lake Park. 555 Crescent Rd. Greenbelt, MD. Meet us in the parking lot. Thank you! .....Ross A.

**West Coast Swing with Lara Deni** **Where:** Deni Danzco Studio - 3408 Annandale Rd, Falls Church, VA ​ \*Max 16 people per class **Monday** 7:00pm - Level 2 (Novice) 7:45pm- Drills/Musicality/Technique - Levels 2-4 8:30pm - Level 3 /4 (Intermediate/Advanced) ​ **Thursday** 7:00pm - Level 1 (no experience/beginner) **Cost: *$74/month*** \- Three classes per month in any one level ***$199/monthly subscription*** \- Unlimited Class Monthly Membership of any level \- cancel anytime **Explanation of Levels** * Level 1 (No Experience/Beginner) - 6 count Rhythm, Left and Right Side passes ), Starter Step, Connection, and a few other basics * Level 2 (Novice -Beyond Basics) - See 6 month Syllabus on the website * Level 3 /4 (Intermediate/Advanced) - Turn techniques, Leaders Turns, Hammerlocks, Re-directs, Sling Shots, Whip Variations, and so much more. The moves and information learned in this class is endless. You will not be bored! :o) * Drills/Technique/ Musicality (Levels 2-4) ​- Each month will be concentrating on one of the three mentioned. We will dive deep into that area of dance, so you walk away with a better understanding, more knowledge, and musicality to enhance and make your dance more fun! Definitely a class not to miss! ###### Q&A * Classes are 45min * Refunds offered only 48 hours before class/class series starts * You can make-up a class with a class that is of a lower level and running during your current series class time period ​

he Virginia/Maryland/DC wildflowers are essentially at their peak NOW! We will hike the Windy Run Trail in north Arlington down to the Potomac Heritage Trail along the Potomac River. Upstream for a bit and downstream for a bit will show us many of the currently blooming wildflowers. This is timed for later in day so that you can take care of your other responsibilities and still get outside. There will be plenty of light for good pictures. Also, the birds get more active and noisier towards dusk. Bluebells, spring beauty, wild phlox, snowbells (even though it is done snowing) , May apples (even though it is April). These are a few of the flowers blooming now that you will see. The Spring ephmeral wildflowers take advantage of the light and bloom quickly before the trees leaf out and put them in shade. When the trees leaf out, the spring wildflowers begin to go to bed until the next year. Wear shoes with tread that will grip. There are a handful of stream crossings and a set of steep stairs (with a handrail part of the way down). If you have treking poles, consider bringing them. No dogs. I will also show you I-Naturalist. Load the App before you come if you wish. The Appalachian Mountain Club uses this as a citizen science project that can track blooming dates and locations. Meet at 2433 N Kenmore St, Arlington, VA

Let your creativity loose on the dance floor! Learn all the latest dances suitable for beginners and seasoned line dancers. Enjoy this great way to exercise, socialize, and energize yourself. Level: All. Ages 13 & up Fitness in the Parks is a FREE program that brings a variety of fitness opportunities to parks and natural areas across Prince George’s County, MD! We invite you to find the class that best suits your fitness goals and to come discover the benefits of exercising in nature. Ages 13 & up. Register at pgparksdirect.com. No classes on federal holidays (5/25). Classes may be canceled due to inclement weather or wet grounds. Call 301-927-0822 for weather-related cancellations. [Register at: pgparksdirect.com](https://mdpgparksweb.myvscloud.com/webtrac/web/iteminfo.html?Module=AR&FMID=532319807) Activity Code: 17681-279A For fastest response to any questions, or for more information, please contact Health and Wellness directly via email wellness@pgparks.com **Tucker Road Athletic Complex (located on the basketball court)** **1770 Tucker Road** **Fort Washington 20744**

Greetings! \*A Few Quick, Important Notes\*: 1. Location/Further Details/Tickets required at: **[https://convergeworld.org/dc/green-convene-2026/](https://convergeworld.org/dc/green-convene-2026/)** 2. A Free RSVP on Meetup is NOT a ticket for admission to this event. This is NOT a free event. Thanks! 3. Can't make this one, but interested in future events? **[https://forms.gle/4Pnws1HBn5M89Ro28](https://forms.gle/4Pnws1HBn5M89Ro28)** \*\*\* You are cordially invited you to **GREEN CONVENE.** Celebrate the arrival of spring’s most important environmental gatherings with an evening of connection, ideas, and momentum in the heart of Washington, DC. **GREEN CONVENE** brings together the people, organizations, and communities shaping the region’s environmental conversation—across policy, technology, art, and civic life. Taking place alongside a wave of major spring convenings—including DC Climate Week, Green Expo 2026, Earth Day and other initiatives — this event offers a central space to meet, exchange ideas, and build relationships that carry forward into the weeks and year ahead. Whether you’re deeply involved in environmental work or simply curious and looking to plug in, this is your chance to connect with the people driving ideas forward in DC and beyond. Feel free to forward this invitation to friends. I look forward to seeing you on **Saturday 18 April**! Yours,  **John Hanshaw** **Questions? Feel free to reach out at:** [https://www.linkedin.com/in/johnhanshaw/](https://www.linkedin.com/in/johnhanshaw/)

Title: Foundations of Localized Symmetry Mathematics Date: April 18 2026 Noon - 14:00 EST Summary: The moment you use Euclid’s definitions of points and distances in any of your mathematical axioms, all that follows is assured to produce some level of nonsensical results when applied to the foundations of physics. The reason is not complicated: Euclid’s definitions are deeply mired in accepting as a “given” the very concepts that emerge only in well-defined inertial frames, which in turn are local instances of symmetries that are always finite and context dependent. In this talk, Terry will discuss how reframing mathematics in terms of symmetries that, as in the real world, are finite, composite, and dependent on self-observation (acceleration), results in a richer and far stranger set of mathematics in absolute conservation of quantum numbers generate local and global symmetries — the opposite of Noether’s theorem — that in turn create the emergent classical phenomenal such a particles, fields, space, and time. Speaker: Terry Bollinger is a computer scientist with BS, MS, and professional degrees from the Missouri University of Science and Technology.

The AWS Sustainability Hackathon is a 2-hour micro hackathon where students will vibe code and build an app focused on sustainability using AWS in some capacity. Bring 2-3 friends for a fun, creative, and collaborative way to meet like-minded people, explore cloud tools, and turn ideas into something meaningful. Winners will receive merch and a $50 Amazon gift card each, and free food will be provided.

Please join VSDC, Friends of the Earth, and its partner organizations for the **2026 Stop Financing Factory Farming [Global Day of Action](https://actionnetwork.org/events/global-day-of-action-tell-the-world-bank-to-stop-financing-factory-farming/)** on **Wednesday, April 15**. The goal is to send a message to the World Bank Group that a livable planet is not one built on factory farming. **When**: 12pm-1pm on Wednesday, April 15, 2026, **Where**: East corner of the triangle of South Murrow Park (Edward R. Murrow Park (south triangle, across from World Bank entrance at 1818 H St NW)• 19TH ST & PENN AVE &, H St NW sb, Washington, DC 20431 US) **Who:** On-site VSDC host is Max Broad (202-926-5739) You can also sign up directly with the organizing groups [here](https://actionnetwork.org/events/global-day-of-action-tell-the-world-bank-to-stop-financing-factory-farming/), **What**: The organizers will meet with representatives from the World Bank Group and deliver a booklet highlighting solutions to factory farming and the need for the Bank to support sustainable, community-based food systems instead. (The organizers will provide signs and shirts for attendees, and capture the attention of people attending World Bank meetings.) **Why**: The World Bank cannot fulfill its mission to “end poverty on a livable planet” while continuing to use taxpayer dollars to finance the expansion of industrial animal agriculture. **VSDC: More Than A Meetup** We are delighted to have you as part of The Veg Society of DC Vegan Meetup group, and we look forward to seeing you at our events. Did you know that [VSDC](https://vsdc.org/%20) is a nonprofit organization with membership benefits? With VSDC membership, you will save money at area restaurants and businesses, attend VSDC member-only events, and, most importantly, support us as a clear and consistent voice for improving the lives of all beings through community building and education centered on the benefits of a vegan diet and lifestyle. The membership fee is minimal, but the impact is significant! [Join today](https://vsdc.org/membership/)! **Ways to Stay In Touch with Us** Thank you for being part of our Meetup presence and bringing like-minded people together. We invite you to: * Become a [VSDC member](https://vsdc.org/membership/) to save money at area restaurants and support us in being a clear and consistent voice for improving the lives of all beings through community building and education centered on the benefits of a vegan diet and lifestyle. * Sign up for our[ monthly e-newsletter](https://vsdc.org/about/newsletter/) to hear more about our activities. * Follow us on [Instagram](https://www.instagram.com/vegsocietydc/) or [Facebook](https://www.facebook.com/vegsocietydc/) to engage with us. **Interested in Volunteering with VSDC?** VSDC offers many events each month, thanks to the dedication of our event planning team. Would you consider volunteering? To learn more and get started, [please visit our website](https://vsdc.org/volunteer/). **Only Vegan Food, Please** While VSDC welcomes people wherever they are on the path to an all-plant, vegan diet and lifestyle, it is our policy that only vegan food be served and consumed at all of our events. **Liability Waiver and Code of Conduct** When you sign up to attend, you automatically acknowledge [VSDC's Liability Waiver](https://vsdc.org/activity-waiver/) and commit to follow the code of conduct found at [Policies - VSDC - Veg Society of DC](https://vsdc.org/policies/). **VSDC. Creating communities. For your health, the animals, and the planet.**

​This meetup is for anyone building with OpenClaw (& Claude Code) or experimenting with other AI tools to create agents that can act and make decisions on their own. If you haven’t tried these yet, come hang out, ask questions, and see what others are building. We’ll trade notes, troubleshoot setups, and explore what it takes to run these systems openly on the web instead of inside closed platforms. Bring your laptop, grab some power, and jump into a night that feels part LAN party, part live build session, where people test ideas and show what their agents can actually do. 👉 [RSVP on LUMA](https://luma.com/53dx7no1) We’ll also have some fun by running a live test to see if a few of our agents can send Bitcoin back and forth and talk about why that’s a meaningful step for autonomous AI. It’s a chance to connect the dots between open AI tools, Bitcoin, and the wider goal of creating technology that no one can turn off. 👉 [RSVP on LUMA](https://luma.com/53dx7no1)

Title: Potential Applications of Negative Radiation Pressure in Astronomy, Medicine and 2WQC Date: April 19 2026 10:00 am - Noon EDT (16:00 - 18:00 CET) Abstract: While we are used to heating and pushing with light, there is also optical cooling and pulling. I will talk about negative radiation pressure, potential ways to generate it, and its novel applications, like non-ionizing medical scanners, 2WQC (two-way quantum computers) in theory solving NP problems, also potential astronomical sources and their observation. Speaker: Dr Jarek Duda is an assistant professor at Jagiellonian University. He holds degrees in computer science (PhD), mathematics (MSc) and physics (PhD). He is mainly focused on physics foundations, information theory, statistical analysis, and is known for introduction of asymmetric numeral systems.

We’re excited to continue building AI in Practice with our monthly social! 🎉 Each month, we’ll host an informal happy hour and dinner at Upside on Moore in Rosslyn. Come join fellow AI builders, professionals, and curious minds for a relaxed evening of conversation, connection, and community. Whether you’re working on AI systems, advising on responsible adoption, or just interested in how AI is shaping law, compliance, finance, healthcare, defense, software, mission-driven organizations, or public service — this is a chance to meet like-minded people and help shape what this community becomes. 🍸 Drinks and food are available for purchase at the venue. 🤝 No formal agenda — just introductions, networking, and sharing what excites us about AI in practice. We’re so grateful for the early enthusiasm, and we look forward to seeing you each month as this community grows! **Date, Time & Location** 5:30 PM – 7:30 PM Tuesday 14 April 2026 Upside on Moore 1831 Moore Street Arlington, VA 22209

Join us for an engaging panel discussion on **AI Agentic Coding** and how autonomous AI systems are transforming the way software is built. Experts in AI, software engineering, and developer tools will share insights on how agentic AI—systems that can plan, reason, and execute coding tasks—is reshaping modern development workflows. The discussion will cover topics such as AI-assisted development, productivity gains, challenges around reliability and governance, and what the future of software engineering may look like with AI agents as collaborators. Whether you’re a developer, tech leader, or AI enthusiast, this session is a great opportunity to learn, ask questions, and explore how agentic AI is redefining coding

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.

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)

AI is changing how art is made. But when does it stop being your work and start being the machine’s? This month we're going to be doing a panel with with digital image, music, and written word artists, talking about at what point, while using AI in the creation process, does the work become not the artist creation? We encourage audience participation during this event that will be moderated by Chris Slee. Whether you’re deep in the field or just getting curious, come connect with others building and exploring AI in Columbus. Sponsored by [Transform Labs](https://www.transformlabs.com/services) Sign up also accessible via [Transform Labs Luma](https://luma.com/55umjqta)

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)

5th annual Earth Day Celebration! This year (2026) the Celebration is scheduled for April 25th with activities running from 10am-2pm. This is a non-ticketed event. Everyone is welcome! We will have food trucks, Birds of Prey, kids crafts, live music, raspberry plants, apple trees, and of course NATIVE PLANTS! Where: Lynd Fruit Farm, 9399 Morse Rd, Pataskala Ohio 43062 Time: Activities will be from 10am- 2pm. The Market will remain open until 5pm.

Bring your Raspberry Pi, Arduino, microcontroller, or any other electronic project and join fellow electronics makers for a night of creativity and collaboration! This session is open forum to share your current projects—whether complete or in progress, it’s all interesting! Whether you’re deep into embedded systems, exploring new ideas, or just getting started, you’ll find a welcoming space to collaborate, share, and get inspired. **New to electronics or curious about tinkering?** You’re absolutely welcome. If you’re a beginner and want to experiment, I’ll have a couple of starter kits available so you can try things out—whether that’s blinking your first LED, putting something on a display, or experimenting with simple sensors. No pressure and no experience required—just an interest in learning and building. While we continue to pursue a more permanent venue for this Meetup, we’ll be using public library facilities based on availability. This session will be at the Worthington Park Library in the Olentangy Meeting Room.