Cybernetics

Welcome to our new home at the historic Tivoli Theater! Please check our details for access to the space on [our website](https://www.hacdc.org/visit/). Join the discord for questions / help getting in (use channel #let-me-in) [https://discord.gg/dNjuNhNmeT](https://discord.gg/dNjuNhNmeT)

Learn Kali at the [Pedro Sauer Academy of Self-Defense](https://pedrosaueracademy.com/) in [Herndon, VA](https://en.wikipedia.org/wiki/Herndon,_Virginia): a **beginner-friendly** [Filipino Martial Arts](https://en.wikipedia.org/wiki/Filipino_martial_arts) (FMA) class that builds **coordination**, **timing**, and **confidence**. 🔥 Experience FMA training through **partner drills**, **movement flow**, and **practical self-defense applications**. In this session you’ll: * Train classic **FMA weapon systems** such as **rattan sticks**, **training knives**, and **empty-hand applications** of Kali and Arnis. * Develop **coordination**, **timing**, **range awareness** and **reflexes** through **practical drills** drawn from Filipino Martial Arts traditions. * Improve your **conditioning**, **speed**, and **agility**: FMA’s weapon-based flow patterns and hand-to-hand transitions push both **mind** and **body**. Join a supportive community of martial arts enthusiasts in [Northern Virginia](https://en.wikipedia.org/wiki/Northern_Virginia) \-\- whether you're new to weapons training or experienced\, this class is designed to **challenge** and **reward**. This class is **open to all levels** and emphasizes **safety**, **precision**, and **continuous learning**. Whether you’re looking to explore **Filipino Martial Arts** (FMA) for **[self-defense](https://en.wikipedia.org/wiki/Self-defense)**, **coordination training**, **weapons fluency**, or simply finding a **unique**, **dynamic workout** in [Herndon, VA](https://en.wikipedia.org/wiki/Herndon,_Virginia) -- *this is your class*. 👉 Come build real **skills**, boost **conditioning**, and ***train with great people*** \-\- j**oin us today and explore the flow and discipline of [Filipino Martial Arts](https://en.wikipedia.org/wiki/Filipino_martial_arts)!** The **drop-in fee** for non-members is **$20**, **payable on-site**. We are located in **Suite #130** — let us know when you arrive and we’ll take care of the rest.

Do you find yourself showing up in meditation sessions wondering why your mind won’t settle down?Are you trying to figure out why your body seems to become so uncomfortable in meditation sessions? Join Marsha, non-conventional meditator, certified yoga therapist, trauma sensitive yoga facilitator, and energy and sound healing facilitator, as we show up and unpack ways of meditating that uniquely resonate with you. Whether you find comfort in standing, sitting in a chair or on a yoga mat, or lying on the floor, eyes open or closed, you are welcome to show up just as you are, as we seek peace through movement and compassionate sharing experiences, while embodying the physical, intellectual, emotional, and spiritual benefits of meditation, energy + sound healing, and yoga therapy. **Please reserve your spot at www.piesfitnessyoga.com**. The session is offered both InStudio and OnLine. The Zoom link for the OnLine session will be emailed 15 minutes before class starts to those who are registered at www.piesfitnessyoga.com. **Sign up for sessions must be made at least 2 hours prior to class.** The address is 1322 Prince St Alexandria, VA 22314 Our entrance is located on the side of the building, parallel to West St. **Street parking is available and additional parking is located at Shiloh Baptist church, spaces 36,37,38,39.** The church is located across the street from the studio, on the corner of Duke St. and West St. Discount is available to seniors, teachers, students, emergency responders, and military. All can save by purchasing class packs.

Beginner-friendly evening [Brazilian Jiu-Jitsu](https://en.wikipedia.org/wiki/Brazilian_jiu-jitsu) (BJJ) class at [Pedro Sauer Academy](https://www.pedrosaueracademy.com/) (PSA) in [Herndon, VA](https://en.wikipedia.org/wiki/Herndon,_Virginia): Learn **escapes**, **submissions**, and **live strategy** with **expert instruction**. **🔥** *No experience is required* -- **new students** and **first-timers** are welcomed to attend this class. Classes focus on **practical**, **real-world fundamentals** taught in a **safe**, **technical**, and **highly supportive environment**. You’ll learn how to **escape common holds**, **apply effective submissions**, and **understand live positional strategy** \-\- the same leverage\-based system used in modern BJJ and [Mixed Martial Arts](https://en.wikipedia.org/wiki/Mixed_martial_arts) (MMA), adapted for everyday people. This **gi class** takes place every **Monday** and **Wednesday** and includes **one hour of guided instruction** followed by **one hour of optional open training** (live rounds, drilling, review, and research). Loaner gis are available if you need one. **Drop-in fee** for non-members is **$20** and can be **paid on-site**. We are located in **Suite #130** \-\- let us know when you arrive and we’ll take care of the rest\.

**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 SUBCOUNSCIOUS?** **Attend and find out.** This group is sponsored by the Dianetics Life Improvement Center Call 202-797-9826 with any questions and to register! You are welcome to arrive 15 minutes early for refreshments!

Wallyball in Maryland come join us and check out our 4 court facility. It has locker rooms with showers and a small bar with drinks and appetizers. Open play on Mon, Advanced play on Tues, League games on Fri. $12 Entrance Fee, Non Members pay at the front desk. If you have not played Wallyball below is a description but you need to come try to give it a bounce. Wallyball is an exciting, fast-paced version of volleyball played inside a racquetball court, utilizing the walls to add a whole new dimension. It's a high-energy game that creates quick reactions and creative thinking, making it perfect for volleyball players looking for a new challenge or a thrilling way to cross-train. Why You'll Love Wallyball "Walls are In" Action: The key difference from traditional volleyball is that you can strategically hit the ball off a single side wall on your side of the net, creating unexpected angles and keeping opponents guessing. This adds a unique, dynamic element to rallies. Faster, Intense Pace: Played within a smaller, enclosed court, the action is non-stop. The ball is always in flight, leading to longer rallies, more touches, and heightened intensity. Enhanced Strategy: Good wallyball players use the walls as a key strategy to confuse and distract opponents. It encourages creative shot-making and demands excellent court awareness and communication skills—all valuable for your regular volleyball game. Improve Core Skills: The enclosed space forces you to be fast on your feet and react quickly, which sharpens fundamental skills like passing, digging, and hitting in a controlled environment. Great Cross-Training: It's an excellent workout that builds physical conditioning and mental fortitude, helping you stay sharp and competitive even in the off-season. If you thrive on fast-paced competition and are looking for a fun, yet challenging, twist on the sport you love, wallyball offers a unique opportunity to bring your skills to the walls.

Call 202-797-9826 with any questions and to register! You are welcome to arrive 15 minutes early for refreshments! Are insecurities hindering your ability to live a happy life? Maybe you have suffered a traumatic experience, a deep loss or been through a painful breakup? After that, you try to move on- you just can't. Possibly you have a thought or emotion that hangs around for days and you just can't shake it. What is all this stress, anxiety, depression, and self doubt? It's just crazy! This baggage is not the real you. You can find out what is at the root of all this. Areas you can be helped with: Control of unwanted emotions Lack of confidence Grief Anxiety Anger management Creating ideal relationships Depression Memory and more... This is an on-line class that can start you on the way to a better life, more confidence and less negativity. All the happiness you have lies within you. Let's find it! We only use natural proven techniques, called Dianetics; no drugs or labeling. This group is sponsored by the Dianetics and Scientology Life Improvement Center.\

**PLEASE BUY TICKETS THROUGH EVENTBRITE. RSVP THROUGH MEETUP IS NOT A TICKET PURCHASE CONFIRMATION.** Strive welcomes you to 'General Business Networking', DC's hottest networking event! We are set in the perfect central location for all to join. Are you interested in business? Want to elevate your career? Meet Consultants, Analysts of all types, Bankers, Software Engineers, Entrepreneurs, and more who are active in the space or are eager to get started. **\*\*This will be a multi-vertical event\*\*** **There will be professionals with backgrounds in the arts, finance, tech, real estate, healthcare, and more. Come with an open mind, and leave with connections that wouldn't be possible otherwise!** Pack some business cards and come with an open mind! Meet your future business partners, employers, coworkers, investors, and friends. You don't want to miss this opportunity to expand your network and create a brighter future. We will have a space for our event to check-in. The event will go from 6:00 PM - 8:00 PM (feel free to come at any point in this timeframe). Name tags will be provided. Business casual dress code. Job fair attire. **Remember, it's not who you know, it's who you meet tomorrow!** We look forward to meeting you at the event! Sincerely, Strive Networking Team *Refund requests are permitted up to 24 hours after purchase, so long as we are not within 48 hours before the event start time. Refunds will be made in full and repaid to your method of payment. Note that we are unable to reimburse PayPal fees.* *Disclaimer: By attending Strive Networking events you agree to photos/videos taken during the event being used to promote future events.*

First book of 3, 90 pages long. We can decide if we want to read the other two, but nominally we will start Palmer 2025, Inventing the Renaissance: The Myth of a Golden Age on July 25th. Binti: https://share.google/mtvtsaIUQoyhqDZ5O. Inventing the Renaissance: https://share.google/OAY04lzYg8bWKM3Go.

Grow your professional network across industries, swap ideas, and unwind in a friendly, collaborative vibe, ideal for career-minded pros seeking connections. All professionals in the DMV and MidAtlantic area are invited! This event is to every and each professional in different industry, sector and specialization 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 and are studying or intend to enter the dynamic world of global professionalism. ***GRAB A BOOZE OR A BITE AND YOU WILL BE SET TO ENJOY THE EVENT. 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.*** We have a tiny venue and we hit capacity often and early arrival is suggested. We have the discretion to decide entry. HOW IT WORKS : We will give out name tags and you write your name and your industry/sector/specialization. However we don't guarantee the availability of a partner in that area. DON'T FORGET TO BRING YOUR BUSINESS CARD. Rules to abide : 1. Event is free and 21+ (bring ID). 2. Be respectful to your counterparts and give them a chance to connect with others as well. 3. We all are professionals in one or two fields and be willing to share your knowledge and experience to others and try to accommodate as much as possible. 4. If you don't belong the other person's required specialization, LEAVE THEM ALONE. 5. Rude or aggressive members are removed from the group at an organizers discretion. 6. This is a face-to-face networking event. DO NOT try to arrange an online meeting, by using the comment box or direct message. 7. Most of our members complained about people writing in the comment box. Since it sends notification to all attendees. If you have any questions, send a message to the organizers. Don't write in the comment box. 8. We have ZERO TOLERANCE for solicitation. We don't allow anyone to run their own agenda at the Event. If you are interested to promote/sponsor/collaborate; contact us via ([info@merevents.com](mailto:info@merevents.com)). 9. When you get there, we will greet you and take you to your respective group. 10. ***Please be patient for the first 30 minutes, up until we form a group with your respective industry/sector.*** ***AFTER THE SOCIAL, WE HIT THE DANCE FLOOR! BRING YOUR DANCING SHOES, WE WILL DANCE THE NIGHT AWAY!*** \- Come one\, come all; 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\. ***N.B. : We have ZERO TOLERANCE for solicitation. We don't allow anyone to run their own agenda at the Event. If you are interested to promote/sponsor/collaborate; contact us via ([info@merevents.com](http://info@merevents.com/)).*** **FOR FURTHER INFO, REFER THE EVENTBRITELINK. IT RULES.** [) [) [) [) [) [) [)

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!

Attendance is $35 (cash, credit/debit card, or ApplePay - paid at the door), which includes water/soda/coffee, bread, choice of a plated lunch entrée, and a dessert assortment. Parking is also validated in the Reston Station garages (3 hours of validation). Join one of Northern Virginia's most successful business networking groups (part of BNI). Open to the public and is typically attended by business owners, business developers, and entrepreneurs. Meetings are typically attended by 30-40 members and guests. \*\*\*PLEASE RSVP here: [REGISTER HERE](https://square.link/u/0WvC6Eir) \*\*\*If you do not register on the BNI website, there may not be a seat available for you.

From the organizers of the Silver Spring Cloud Meetup, this is a local tech meetup for AI builders, software engineers, cloud engineers, developers, founders, and AI practitioners in the Silver Spring / DMV area. ​**What to expect** Short talks plus open networking. Topics on deck for our first sessions: * ​Local AI models: running Qwen, Llama, and friends on your own hardware (Ollama, MLX, llama.cpp) * ​Agentic AI: what's actually working in production, and what isn't ​**Want to speak?** We're looking for 15-20 minute talks and lightning demos. Pitch us at [hello@cloudyeti.io](mailto:hello@cloudyeti.io). First-time speakers welcome. ​**Location: TBD** We're finalizing a venue around Silver Spring. RSVP and you'll get the address as soon as it's locked in. ​**Sponsors wanted** We're looking for sponsors to cover food, venue, and event insurance. If your company wants to get in front of DMV AI engineers and builders, email [hello@cloudyeti.io](mailto:hello@cloudyeti.io). ​**Cost** Free to attend. If we don't land a sponsor, we'll suggest an optional $10 donation to cover venue, insurance, pizza and drinks. Nobody gets turned away. ​ ​#techmeetup ​#AImeetup

# The Power of the Subconscious Mind **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 SUBCOUNSCIOUS?** **Attend and find out.** This group is sponsored by the Dianetics Life Improvement Center Call 202-797-9826 with any questions and to register! You are welcome to arrive 15 minutes early for refreshments!

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.

Most people use LLMs by feel: ask a question, read the answer, decide whether it “seems good,” and move on. That works for casual use. It does not work when you are building software, automating workflows, writing important documents, or relying on AI for anything that needs to be repeatable. In this talk, we’ll look at how to improve and evaluate the inputs and outputs of LLMs using practical measurement techniques. We’ll cover how prompt changes affect results, how to compare outputs, how to build simple evaluation sets, and how math-based methods like similarity scoring can help you move beyond guesswork. This will be beginner-friendly, so even if you don't know anything about AI, you should get something out of it. However, this will be a little more technical than our intro talks. You do not need to be an AI researcher, but programmers and technically curious attendees will get a lot out of it. We’ll cover: * Why “it looks good” is not enough * How to improve prompts by changing the input, context, and constraints * How to compare LLM outputs more systematically * Basic evaluation techniques for accuracy, consistency, and usefulness * How embeddings, cosine similarity, and scoring can help evaluate results * Where automated evaluation works — and where humans still need to stay in the loop By the end, you’ll have a practical mental model for treating LLMs less like magic and more like systems you can test, measure, and improve. LOGISTICS AND PARKING: The talk starts at 7:00 PM. The first half hour is reserved for everyone to get set up and mingle. Free pizza and drinks! The cheapest parking option is to find street parking, which will only cost you a few bucks. Otherwise, park in the nearby veteran's museum lot for $8. It's highly recommended you avoid the nearby $15 garage parking.

Monthly working lunch for Columbus business owners. One specific topic, one to three actions you can run this week. You can be the best at what you do and still be invisible. If local buyers cannot find you, the phone does not ring. Marketing Monday Lunch + Learn is a monthly working lunch for Columbus business owners focused on building relationships, local networking, and local marketing. Every kind of local business welcome. No pitch round, no pressure, no upsell. **This month** Most local businesses pick one or two places to be visible and call it good. The result is inconsistent calls and a feeling that marketing is not working. We will walk through the three places every local business needs to show up, plus the fourth place most owners ignore that quietly produces the warmest leads. **What to expect** Doors open at noon. Order lunch and drinks at the cafe counter or bring your own. You get real conversation with other local owners and a focused marketing lesson. You leave knowing people and with one to three actions to run that week. The room is reserved through 1:30 PM. **Who this is for** Any local business owner who wants clearer marketing direction and real local relationships. Service businesses, retail, home services, professional services, online owners building local presence, anyone serious about being part of the Columbus business community. **Not the right fit if** You are here to pitch the room or recruit for an MLM. **Details** * Second Monday of every month * 12:00 to 1:30 PM * Good Cafe Easton, 4400 Easton Commons, Ste 150, Columbus, OH 43219 * Order lunch and drinks at the counter when you arrive * Free to attend, RSVP required, space is limited **About the host** Rita Suzanne is a local marketing strategist and the founder of Local Marketing Method. She runs Visibility is Profitability, the membership where local business owners build the system that keeps their phone ringing. Learn more at learnlocalmarketing.com. Register here: [https://www.eventbrite.com/e/1989964540509?aff=oddtdtcreator](https://www.eventbrite.com/e/1989964540509?aff=oddtdtcreator)

Private Group. Closed to the Public Knowing ourselves and understanding our abilities is the first step toward wielding our gifts with control and accuracy. In subsequent classes we will verify and hone our talents with activities and discussion. These are hands-on workshops and participation is expected. The goal of our series will be to develop expertise in areas of particular interest such as mediumship, channeling, divination, healing and, etc.. Our ultimate directions will be determined by class members as we evolve. I look forward to sharing and discovering with you. - Cynthia

Main Library, Meeting Room 2B Join us for a welcoming evening of reflection, gentle music, and meaningful conversation. We’ll begin with a short grounding moment, followed by a brief reading from spiritual or philosophical traditions, and an open reflection circle where participants can share (or simply listen). Libera Animae is an interfaith community focused on inner growth, creativity, and authentic connection. All backgrounds are welcome.

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.

Want to be a speaker? submit your talk to our Call for Presenters!!! https://sessionize.com/azure-cbus-2026/