Hashing

**✅ First class is FREE – only 10 spots available!** Learn real self-defense skills in a small-group setting. No experience needed, open to all adults. 📲 RSVP now and text Jim at **301-326-9146** to confirm—once spots are gone, they’re gone. *** ## **Free Intro Self-Defense Class – Maryland Systema** Want to learn how to protect yourself while also improving your health, focus, and confidence? Join us for a free first class at **Maryland Systema**, a unique approach to self-defense that blends both physical and mental training. *** ### **Why This Class is Different** Unlike most programs that only teach physical moves, Systema trains your body **and** your mind. You’ll explore: * **Structure** – staying balanced under pressure * **Breathing** – keeping calm and controlling fear * **Relaxation** – avoiding panic and wasted energy * **Movement** – adapting naturally to any situation You’ll also learn to read an attacker’s intentions and respond proportionately—aligned with Maryland’s self-defense laws. *** ### **What You’ll Gain** ✔ Practical skills you can use right away ✔ Better stress control and awareness ✔ Improved strength, mobility, and coordination ✔ Confidence in handling real-world situations *** ### **Class Info** 📍 **Location:** Dance Exchange, Takoma Park (free parking) 🕒 **Length:** 1.5 hours 👥 **Small Group:** Max 10 students for personalized guidance 👖 **What to Wear:** Comfortable long pants and clothes you can move in 💵 **Cost:** Free for first-time students *** ### **How to Join** RSVP here on Meetup to save your spot, then text Jim at **301-326-9146** to confirm. Spots are limited—once the group fills, we close registration. *** **Maryland Systema** Real-world self-defense training for adults—helping you stay ready, stay calm, and stay safe.

Friends, we can do an out and back hike for this, 3 miles in total. There will be plenty of parking, we will meet at the parking lot. Bring plenty of water, whatever you need for your hike, and your awesome authentic self. and of course, always bring a joke!! This is a meetup group for support and community. If you hit on me or anybody else in the group, you will be removed. People with agendas will be removed. **RELEASE OF LIABILITY & ASSUMPTION OF RISK AGREEMENT:** By being a member of this Group, RSVPing to any Activity, or participating in any Activity, You accept and agree to the terms and conditions described below: 1. You acknowledge that hiking in nature or city, carries the risk of potential harm to yourself, including the risk of injuries such as broken bones or muscle/tendon injuries, illness, disability, or death. 2. You agree that You will at all times be responsible for Yourself and Your own safety. 3. You release and hold harmless with respect to all injury, disability, death, or loss of property, whether caused by negligence or otherwise, this group's leadership and members for the hikes that you participate in. 4. You acknowledge and agree that this Group is merely a collection of friends or potential friends who enjoy doing activities, and that in no event does any Organizer or Other Member assume any responsibility or liability for You. 5. You agree not to sue and to release, discharge, waive and hold harmless all organizers and other members from and against all liabilities, claims, demands, losses, damages, suits and proceedings, for negligence, carelessness or any other cause which you may have or that hereafter may accrue arising, resulting from or related to your membership in this group or participation in any activity.

Get ready for one of the most fun and legendary nights - **BINGO NIGHT is HERE**! We’re talking: Big energy. Big laughs . Big wins. And an even bigger Social Sips & Bites crew bringing the hype! Whether you’re the quiet strategist or the one who screams “BINGO!!!” before the last number even lands, this night is for YOU. We’ll play multiple rounds, cheer each other on, enjoy drinks, snacks, and nonstop fun. This is the perfect chance to meet new people, hang with friends, and make some epic memories. Bring your energy. Bring your luck. Bring your hype.

Enjoy a lively German convo! Hoffentlich werden wir euch dort sehen! ***GRAB A DRINK AND YOU ARE 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.*** 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 try to assign tables for each represented languages and will direct attendees to their respective tables accordingly. Rules to abide : 1\. Event is 21\+ \(bring ID\)\. 2\. Be respectful to your counterparts and give them a chance to exchange with others as well\. 3\. We all are native speakers of one or two languages and be willing to help others and try to accommodate as much as possible\. 4\. If you don't speak the other person's required language\, LEAVE THEM ALONE\. 5\. Rude or aggressive members are removed from the group at an organizers discretion\. 6\. This is a face\-to\-face language exchange 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 \(info@merevents\.com\)\. 9\. When you get there\, we will greet you and take you to your respective group\. 10\. Don't be shy of your local languages\. We have diplomates assigned to different countries\, who would love to practice your languages\. 11\. Be patient for the first 30 minutes\, up until we form your respective language group\.
 12\. We will have a registration station and check you in\. 13\. This is mainly a social for Intermediate/Advanced/Native Speakers\. It is not as such to learn a language\. Beginners\, if you want to learn a language\, reach out to us \(info@merevents\.com\)\. We have a school and will arrange you a class\. ***AFTER THE EXCHANGE, WE HIT THE DANCE FLOOR! BRING YOUR DANCING SHOES, WE WILL DANCE THE NIGHT AWAY!***

Join us on **Saturday, Mar. 7th** at **Hong Kong Pearl** in **Falls Church, VA** for our 2026 Annual Lunar New Year Celebration. Enjoy a delicious multi-course dinner, grab a refreshing beverage, try your luck at multiple exciting raffles, watch spectacular cultural performances, and more! Our coveted 2026 Lunar New Year celebration is set to be a truly extraordinary event. Space is limited, so be sure to buy your ticket soon. 📅 When: Saturday, Mar. 7 (doors open at 5:00PM, dinner served at 6:00PM) 📍 Where: Hong Kong Pearl (Falls Church, VA) Dress Code: Smart Casual or International Dress Follow along on our website or social media to learn more event details, sponsorship opportunities, and more about this can’t-miss event. For large group purchases, please reach out to Ascend Chapter President Steven Lazo [stevenlazo@ascendgw.org](mailto:stevenlazo@ascendgw.org) and VP of Membership, Alizabeth Cho [alizabethcho@ascendgw.org](mailto:alizabethcho@ascendgw.org) Let’s ring in the Lunar New Year together in unity and celebration!

Title: What Is Space Density? From Medium Ontology to the Spacetime Constant K Date: March 8 2026 10:00 am - Noon EDT Abstract: Spacetime plays an active role in gravity, wave propagation, and quantum behavior, yet physics rarely treats it as a physical medium with intrinsic properties such as density or inertia. This missing layer creates a major conceptual gap—especially when interpreting large-scale gravitational anomalies that are often attributed to dark matter. In this talk, Lynn will propose a clear conceptual framework for what it means for spacetime itself to possess a density-like property, and Lynn will explain why Unified Field Theory (UFT) naturally encodes this property through the constant K, called the spacetime background inertial intensity constant. Lynn will introduce a space-density constant μₛ as a universal property of space itself—independent of matter, energy density, or gravitational sourcing. However, μₛ cannot be inserted directly into field equations, because it belongs to the ontological level: it describes what space is, not how spacetime responds. To influence dynamics, μₛ must be expressed geometrically. This leads naturally to K, which carries the same physical meaning but operates at the level required by geometric field dynamics. This is a change in representation—not the addition of new physics. This approach provides an alternative way to interpret dark-matter-like effects. Instead of requiring unseen particles, gravitational anomalies can be viewed as consequences of spacetime’s intrinsic rigidity and its global, cumulative response in large coherent systems such as disk galaxies. In local, weak-field environments, standard Newtonian and relativistic gravity remains an effective approximation. The goal of the talk is not to present a final empirical model, but to clarify the physical meaning of spacetime constants and open discussion between UFT and mainstream theoretical physics. Keywords: Spacetime ontology; space density; intrinsic spacetime properties; Unified Field Theory (UFT); spacetime background constant K; geometric response; gravitational coupling; dark-matter-like phenomena Brief Biography Lynn Lou Beran is a Senior IT Security Analyst and an author, translator, and editor working at the intersection of science, engineering, and communication. She translated and edited multiple editions of Zhang XiangQian’s Unified Field Theory and co-authored recent manuscripts developing a geometric, motion-based view of physical reality. Lynn’s broader work focuses on making advanced ideas accessible without sacrificing rigor, and on connecting conceptual insight to testable predictions and practical tools.

Greetings from the capital! Every Saturday at 7:30 PM, people from all walks of life — students, diplomats, travelers, locals — gather to unwind and connect. [[Click this whatsapp groupchat link to join](https://chat.whatsapp.com/GNKKoBtgiU73RYeypZoN6y)] Our age range is mostly 20s to 30s. If you enjoy discussing culture, politics, travel, or just want to practice a new language, this group is for you. A perfect blend of diversity and dialogue, right in the heart of D.C.

ike Turkey Run Park- Pho Lunch, VA Sunday March 8 With winter weather receding, this is a great way to fight cabin fever and head back outside with views of the Potomac. This is a 3 to 4 mile loop hike along the Potomac River just below the American Legion bridge off the GW parkway. The trail is mostly easy and flat, but there are some slightly rocky areas. Be aware that this time of year where segments along the river can be muddy and there are some rocky areas we must maneuver around. Bring a mascot! The park is dog-friendly, but must be on a leash. For more info and maps (see side links): [https://www.nps.gov/gwmp/planyourvisit/turkeyrun.htm](https://www.nps.gov/gwmp/planyourvisit/turkeyrun.htm) What to Bring: Good hiking shoes Water Meet: 9:00 am Where: Parking Lot C-1. (First parking lot when entering park. See map at link below for details) Park Trail Map: [https://www.nps.gov/gwmp/planyourvisit/upload/Corrected-Turkey_Run_Park_Trail_Map_11242023_508c.pdf](https://www.nps.gov/gwmp/planyourvisit/upload/Corrected-Turkey_Run_Park_Trail_Map_11242023_508c.pdf) Departure: 9:10 sharp. We should return to the parking lot no later than 11:15 am. For those interested, we can later head over to nearby Pho 75 (1721 Wilson Blvd) for a great hot pho - one of the best in the area. **Note: Cash Only!** **In the comments section please indicate if you need a ride. If you are coming by car and wouldn’t mind picking someone up at a convenient metro stop, please indicate how many people you can take. Hopefully we’ll have enough room for everyone. I can pick up three at the Braddock Road metro (yellow), located in Alexandria, VA. Or, I can pick up folks at Rosslyn metro (orange/blue). Carpoolers, please chip in generously for gas.** Note: This event is cross-posted with other Meetup groups.

THIS GAME IS BASED ON AN OLD GAME , SO MOST OFTEN YOU WILL NOTICE THAT PEOPLE ( THE FOUNDERS) ARE ADDED BEFORE THE RSVP EVEN OPENS. After that, few spots are available for first reserves and the Host has the right to choose the added people from the wait list (Based on dependability, punctuality and cooperation) ***No wait list show ups*** No-shows will be taken seriously and you lose your privilege to RSVP the next game. This is an early game, so you have to cancel the night before. If you cancel late, it will be considered no show. Please wear turf shoes (no cleats) in this field. Please use a clear profile picture so it is easier for us to know each other. if you don't have a clear picture, the host might cancel your rsvp. If you plan on playing with us , keep in mind we collect yearly donations (Collected once a year ,$25). You can zelle me (3189143325) or Venmo(@Aladdin-Alayoubi) or give cash.

This month, we'll have a recorded talk, followed by discussion, on API design and single-header libraries. How should we structure and program libraries to impose as few usage constraints as possible? We’ll look at [the STB libraries](https://github.com/nothings/stb) and other examples as case studies. We're still at the West End Library - see the location in the sidebar for details. **Agenda:** \- 2pm \- 3pm: Library discussion \- 3pm \- 4pm: Open\-ended discussions\, presentations\, etc\. \- 4pm \- whenever: We'll go get food nearby\! **What we do** Presentations on lower-level, foundational programming topics, ethical software, knowledge sharing, mentoring, and discussion. **Who we are:** We are all about handmade software. Rather than focus on frameworks, heavy abstractions, and buzzwords - we typically create projects or research topics that build an understanding of foundational computing concepts, essential data structures, and hardware/software interaction. **What to bring?** Bring a laptop, project, or just a curious mind. If you're not sure you're ready to contribute, don't worry: we're all here to share our passions and hone our craft. **If you arrive late:** Please enter the room quietly as to not disrupt anyone that is presenting. You can take any empty seat.

DC Code and Coffee is an inclusive, informal co-working session. It's community-led and community-run by devs, for devs. People of all skill levels attend. Whether you’re dev-curious, aspiring, or a professional developer, we’d love to have you! Come chat or learn to code on a Sunday afternoon with coffee and cool-inclusive people. Bring your laptop! We typically meet every month on the weekend. **Join our online community!** For all things Tech in DC and to get latest updates and tech events from the DMV area, join the [DCTech Slack](https://dctech.chat/). All DC Code & Coffee announcements are in the #dccodecoffee channel **How it works** Near the beginning of the event, we do an introduction circle. You say your name, what you can help others with, and what you would like help with. You can also share job opportunities. After the introduction circle, everything is self-organized. **Event Host and Directions** We are meeting in the big meeting room at the back of the library.

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

Window functions have nothing to do with the Windows operating system but provide a “window” to a result set when used in SQL queries. They are powerful, set-based methods to view data in unexpected ways. Window functions provide easy, set-based solutions to solve some common problems: * Using running totals * Performing operations in intervals * Identifying data gaps and islands * Performing aggregates without losing detail Many people are confused by window functions and do not know how to use them properly. This session will explore window functions, how they work, and how to use them. Demonstrations with several examples will solidify how window functions can simplify queries and make them more powerful.

**Our March pick is *God of the Woods* by Liz Moore.** **This month’s novel is an award-winning literary mystery that blends family drama with psychological suspense. It explores women’s voices and relationships while delivering an exciting, eerie, and deeply suspenseful story. The book is 576 pages in print or 14 hours and 35 minutes on audiobook.** Early morning, August 1975: a camp counselor discovers an empty bunk. Its occupant, Barbara Van Laar, has gone missing. Barbara isn’t just any thirteen-year-old: she’s the daughter of the family that owns the summer camp and employs most of the region’s residents. And this isn’t the first time a Van Laar child has disappeared. Barbara’s older brother similarly vanished fourteen years ago, never to be found. As a panicked search begins, a thrilling drama unfolds. Chasing down the layered secrets of the Van Laar family and the blue-collar community working in its shadow, Moore’s multi-threaded story invites readers into a rich and gripping dynasty of secrets and second chances. It is Liz Moore’s most ambitious and wide-reaching novel yet.

ASH is Atheists, Skeptics and Humanists of First Unitarian Universalists of Columbus Ohio TBD Snacks are usually available, and you are welcome to bringing something to share!

A great movie deserves a great dinner! Join us after PROJECT HAIL MARY for another fun and tasty dinner at a CMG-favorite restaurant, FUGU SUSHI! RSVPs are limited for the dinner portion of this event! Here are complete details: FUGU SUSHI: Fugu Sushi offers a truly authentic experience that keeps customers (and the Movie Group) coming back for more. They offer an extensive menu with a delightful array of options and something for everyone! From their top-rated sushi, to tasty appetizers, soups, salads, bento boxes, tempura, delicious teriyaki dishes (including chicken, shrimp, salmon, tofu, vegetable and more), and vegetarian and vegan options, you’ll be certain to find something you love! MENU: https://www.fugusushicolumbus.com/menus RSVP: An RSVP here means you're signed up for the DINNER portion of this event. Seating is limited. If you also plan to join for the movie, please also RSVP in the separate event listing for the movie portion of this event. For the movie, we'll meet in the theater lobby at 2:10pm for the 2:30pm SuperScreen DLX showing. Advance ticket purchase for the movie is advised. Please RSVP in both events, if you plan to attend the movie and dinner. Look forward to seeing you there, Dan

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: Nothing yet. (You should volunteer). What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/