Cryptography

This educational session explores essential strategies for managing and preventing hypertension. Participants will learn about risk factors, lifestyle modifications, and the impact of nutrition and exercise on blood pressure control. The workshop provides practical tools for maintaining heart health and reducing the likelihood of developing hypertension, empowering attendees to take charge of their well-being. Stay after the session for a free health screening! Ages 18 & up; FREE. **Evelyn Cole Senior Activity Center** **[Register Here](https://mdpgparksweb.myvscloud.com/webtrac/web/search.html?Action=Start&SubAction=&_csrf_token=WT6C165L0Q003M48173F1T4A5V404Z4Y006R4I42411J6V5S5W6J6J6Y4V4Q51015G4F553Z0J5T4K6K4A1K4X5X6P5V6X5M5R6G520E4O6251686K5T555A5B6O6T4O53&keyword=ECSAC-SPEC-GA-20260303&keywordoption=Match+One&dayoption=All&beginyear=&location=&display=Detail&module=global&multiselectlist_value=&globalwebsearch_buttonsearch=yes)** For fastest response to any questions, or for more information, please contact Health and Wellness directly via email [wellness@pgparks.com](wellness@pgparks.com)

Join us at Prefect to talk about Context Engineering and Data Engineering for AI! Please RSVP on luma for headcount purposes! https://luma.com/l1epj9r3 \-\-\- Data Engineers DC is a professional group that meets monthly to discuss topics including all things related to Data Engineering such as open data, data gathering, data munging, and the creation, storage and maintenance of datasets. We combine presentations with hands-on workshops, always seeking to make our data munging lives easier. \-\-\- Location: Prefect - **2112 Pennsylvania Avenue NW** **Washington, DC 20037** Note: **Bring a photo ID**, as these are required by building security. Agenda: 5:30-6:15pm: Food & Networking 6:16-6:30pm: Introductions 6:30-7:00pm \-\-\- Data Engineers DC is a program of DC2. Learn more at www.dc2.org \-\-\- Sign up to give a 5 minute micro-presentation! https://forms.gle/8YSBJr5LGsfr3qKMA Fun meetup syntax bug: Link: https://forms.gle/8YSBJr5LGsfr3qKMA Text formatted as a link: [link](https://forms.gle/8YSBJr5LGsfr3qKMA) Link formatted as a link: [https://forms.gle/8YSBJr5LGsfr3qKMA](https://forms.gle/8YSBJr5LGsfr3qKMA) (Data processing is hard. If you've found bugs like this in your pipeline, sign up using the above link to talk about it for five minutes!)

Think you aren't flexible enough for yoga? Afraid to get onto the floor? Living with physical aches or restricted range of motion? Then this is the perfect yoga class for you! Explore your body's strengths in a fun, supportive environment while maintaining and growing your range of motion, flexibility, balance, strength, and sense of peace. All are welcome in this therapeutic class. Come ready to try new things, laugh, ask questions, and support each other. **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.

AI coding tools are no longer just smart autocomplete. They can act like background teammates working in parallel. This working session will unfold in two parts. First, Lee will demonstrate how to orchestrate multiple AI agents simultaneously using GitHub Copilot. He will show how to isolate work across branches and coordinate independent tasks such as running tests, generating a UI, and building core logic using Git worktrees. In the second half, attendees will experiment together by tackling Conway’s Game of Life using parallel agent workflows. Rather than a polished demo, this will be a live coding experiment where participants are encouraged to use their own tools. You will see what works, what breaks, and what it really takes to manage concurrent AI workflows effectively in real world development. NOTE: Ideally bring a laptop with a Copilot/Claude/Cursor/etc account

[Profs and Pints DC](https://www.profsandpints.com/washingtondc) presents: **“Trump, Your Rights, and Resistance,”** an overview of the legal landscape in the District of Columbia just over one year into Donald Trump’s second administration, with Scott Michelman, legal director of the ACLU of D.C. and lecturer on law and Shikes Fellow in Civil Liberties and Civil Rights at Harvard Law School. [Advance tickets: $13.50 plus sales tax and processing fees. Available at [https://events.ticketleap.com/tickets/profsandpints/dc-trump-rights-resistance](https://events.ticketleap.com/tickets/profsandpints/dc-trump-rights-resistance) ] Our nation looks a lot different just over a year after President Trump took office in January 2025. What has actually happened—and what does it mean for our rights? Get an informed breakdown on the civil rights and civil liberties issues that have defined the period since Trump's second inauguration with Scott Michelman, a legal scholar who last January gave an excellent talk on the legal guardrails potentially checking Trump’s actions. He’ll discuss what has been happening with immigration policy, criminal justice reform, domestic military deployment, discrimination, and threats to free speech. He’ll identify troubling patterns, explain where advocates have successfully pushed back in the courts, and outline the unresolved concerns ahead. The talk will also explore what individuals can do next, from understanding their rights to participating in elections that will shape the future of this administration and our country. (Door: $17, or $15 with a student ID. Listed time is for doors. The talk starts 30 minutes later.) Image: The October 18, 2025 “No Kings Day” protest in Washington D.C. (Photo by Geoff Livingston / Wikimedia Commons.)

Fingers crossed, the snowcrete will be all but forgotten by early March and we can come together with ease to knit in public. I hope you can meet me at Aslin Taproom for some social stitching. Aslin has a wide selection of craft beers and soft drinks, as well as a full menu of pub food. The music tends toward early 2000s alt rock, but not so loud that we can't have a great chat. Hope to see you there!

Please join our Advisors and other invited speakers to hear a presentation on investing basics. Topics to be discussed will include an overview of asset allocation, diversification, market volatility, tax efficient accounts, and general income strategies. Refreshments and Hors D’oeuvres will be served. Seating is limited and available on a first-come, first-serve basis. To reserve your spot, please RSVP today to your financial advisor. We look forward to seeing you!

Looking for a new skill? Want to seem mysterious when people ask about your hobbies? Enjoy puzzles? Lock picking might be right for you! Is this legal? Yes! Is it fun? Yes! The meeting is very casual, come and go as you please. We meet in the upstairs area of Board Room. No payment, skills, tools, or RSVP necessary. If you can make small precise movements with your hands, you can learn to pick locks. Introductory talk at 7pm. All are welcome. We meet in a bar but minors are allowed to attend. We are not in a private room; parental discretion advised. If you are a minor or are responsible for one who's attending, please email the organizer in advance at chapter-DC@toool.us Open invite; bring friends! We are the DC chapter of TOOOL. More information here: http://toool.us/

Think you aren't flexible enough for yoga? Afraid to get onto the floor? Living with physical aches or restricted range of motion? Then this is the perfect yoga class for you! Explore your body's strengths in a fun, supportive environment while maintaining and growing your range of motion, flexibility, balance, strength, and sense of peace. All are welcome in this therapeutic class. Come ready to try new things, laugh, ask questions, and support each other. **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 3,5,7,9**. 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.

Security cleared professionals with a polygraph please join us for the CI or FS Poly Cleared Job Fair, Thursday, March 5, from 2pm – 5.30pm at the Hyatt Dulles in Herndon, Virginia. Whether you’re between contracts, transitioning out of the military / government, or just casually looking around, please join us! Our hiring employers include Amentum, AT&T, BAE Systems, CACI, Core4ce, GDIT, Leidos, Markon, RealmOne, Redhorse, SilverEdge, System High, Two Six Technologies and more! Opportunities for Intel, Program and Project Managers, Data Scientists, Cyber, Geospatial, Malware Analysts, Malware Programmers, Software Engineers and Developers, CNO Engineers and Analysts, Database Administrators, System Administrators, Software and Application Developers, Network Designers and Engineers, Help Desk, Trainers and more. A CI or FS Polygraph is required for entry. For more info and to pre-register visit: [https://clearedjobs.net/events/ci-or-fs-poly-cleared-job-fair-march-5-2026-7?utm_source=event+posting+march+5%2C+2026&utm_medium=share&utm_campaign=job+fair&utm_term=february+5%2C+2026](https://clearedjobs.net/events/ci-or-fs-poly-cleared-job-fair-march-5-2026-7?utm_source=event+posting+march+5%2C+2026&utm_medium=share&utm_campaign=job+fair&utm_term=february+5%2C+2026)

At this event you'll discover how to better understand and control your subconscious mind, helping you overcome doubts and fears. If you have anger issues, depressions and anxieties. this event will show you how to overcome them.

This Saturday I've invited Sandy F. to help co-host this event. She is an experienced birder with years of experience in finding and identifying birds in our area. The Group gathers in the parking lot between 6:00 AM and 6:30 AM to catch the sunrise over the Potomac River. Google Maps: [https://maps.app.goo.gl/hCUuoxUPKhRbLLZn9](https://maps.app.goo.gl/hCUuoxUPKhRbLLZn9) Dyke Marsh Wildlife Preserve is known as a top regional birding spot, over **300 species** have been recorded here, including nesting bald eagles and ospreys. Bring your longest telephoto lens and binoculars. I can help you with camera settings so you can capture sharper images of both perched birds and birds in flight. I randomly drop by this afternoon before the snow and saw many amazing birds. I posted a few already. Note: I set the meetup for 6:30am to capture the sunrise. It's supposed to be partly cloudy which should make for amazing skies. I suggest you arrive at 6:00 AM to capture the glow of twilight hour. It is thrilling to capture the amazing orange and red colors that are only available at that time in the morning. Share only your very best, most interesting shots after the field trip, and keep it down to between 5 and 10 photos. Bring water, comfortable shoes, a tripod, fully charged batteries, and empty memory cards... Park Facts: Entrance Fee: Free Allow Dogs on a leash: Yes Bathroom: On the north side of the Marina is a building for restrooms National Park Service Dyke Marsh Wildlife Preserve: www.nps.gov/gwmp Friends of Dyke Marsh (www.fodm.org) By sending in an RSVP and joining this meetup event hosted by the Virginia Beltway Photography Meetup, I agree to abide by the rules and regulations (where applicable) of the event location, and I am also agreeing to the terms of the following release and waiver of liability, which shall be binding on my heirs, executors, administrators, successors, and assigns. In consideration of my (and my child’s) participation in the Virginia Beltway Photography Meetup, I do hereby release, discharge, and hold harmless the Organizer, its members, officers, directors, employees, and the leader(s) of this event from any and all liability by reason of any damage, loss, expenses, or injury arising from my (and my child’s) participation in this event, including that caused solely or in part by the fault of any and all of the above-named parties.

Danceintime runs Cuban Salsa Classes & Social Dancing Every Saturday, all year-long. Come at 1:15 pm to sign in. Stay till 4 pm. Some of us go out for coffee or a bite to eat afterwards and everyone is welcome! $15/person. Cash, PayPal, Venmo, Apple Pay, or Card accepted. Chevy Chase Baptist Church; 5671 Western Ave. NW; Washington DC 20015. NOTE: Enter through back corner door of the church. Danceintime classes are great fun. The dance moves are beautiful, fun, and our class creates a bonded community... Check it out! Class will be held every Saturday in December....celebrate the holidays with dance! For more info: danceintime.com/classes Questions? Contact Barbbernsteintalks@gmail.com

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.

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/

The Humanist Monthly Program is our longest running event and still a community favorite. In the old days it used to be called "Going to HCCO" and we still like to think of it as our flagship event. Food and drinks will be provided at the event. Feel free to show up a little bit early to hang out and talk. Our March speakers are Molly Gaines and Zack Parrish, co-organizers of the Secular Education Association: They will share their story of how a small group of Ohio parents grew into a national organization tracking released-time religious instruction and other church–state issues in public schools. The presentation will cover SEA’s early wins and hard lessons, what we’re seeing nationally right now, and how local advocates can play a meaningful role in protecting public education. Attendees will leave with a clearer understanding of the landscape — and practical ways to get involved. Going forward our meetings will be hybrid. You can meet us in-person or attend online Join Zoom Meeting [https://us02web.zoom.us/j/87836564953?pwd=4Mi57ElZkDIFlb1fnlNwOJ0NiOK4tP.1](https://us02web.zoom.us/j/87836564953?pwd=4Mi57ElZkDIFlb1fnlNwOJ0NiOK4tP.1) Meeting ID: 878 3656 4953 Passcode: 760812 One tap mobile +19292056099,,87836564953#,,,,\*760812# US (New York) +13017158592,,87836564953#,,,,\*760812# US (Washington DC) The formal presentation will start at noon

http://photos2.meetupstatic.com/photos/event/2/a/9/6/600_348310902.jpeg Instructor - Crow, HPS Class fee is $30 at the door or approved exchange RSVP with Advance pay of $25 (discounted) by PayPal on the web or by contacting Enchanted Elements (614) 437-2642. Reservations made directly to Enchanted Elements will be added to the class list manually not online. Private Instruction ~ Closed to the Public ~ Initiated Members Only Please come prepared for ritual. Blessings ~ Crow

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.

TOPIC (Getting Ready for Spring Macro Photography): Insects are hatching, and flowers are blooming soon. Join us for a presentation on Spring Macro photography and get primed for the photographic season ahead. Meeting Schedule: 1. 6:00 - Introduction, Meet New Members 2. 6:10 - Old Business 3. 6:20 - New Business 4. 6:30 - Pre-Shoot Briefing/Education 5. 7:15 - Break 6. 7:30 - Image Critique 7. 8:00 - Adjourn Pre-Shoot Brief/Education: NIK Collection 8 Image Critique: Previous Photoshoot Images (iPhone images and Christmas Cards). If anyone has images they would like critiqued, please provide them at the beginning of the meeting. Providing Images for Critique: For now, I will collect images at the beginning of the meeting on a USB memory stick. My computer has USB-C ports, so a USB-C memory stick or one with dual (USB-C / USB-A) ports will be needed. Images should follow these format rules: JPG - 80% quality or higher 132 dpi resolution 2048 pixels across the long edge Embedded colorspace - sRGB

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

Join membersrs of the Central Ohio UX and digital design community for a casual monthly breakfast.