Cryptography

**🎉 Book Swap: Bring Your Books to the West End Neighborhood Library! 📚** 📅 **Date:** Sunday, June 28th 2026 🕒 **Time:** 2:00 PM - 4:00 PM 📍 **Location:** West End Neighborhood Library - 2301 L St NW, Washington, DC 20037 Conference Room 2 **Agenda:** * **2:00 PM - 2:30 PM** \- Check\-in and chat * **2:30 PM - 2:45 PM** \- Introductions * **2:45 PM - 4:00 PM** \- Book swap **Please note**: * Gently used books are ideal for swapping. * If a book you bring isn’t swapped, you are responsible for taking it home. * This is a “stay-and-swap” event, so please join with the intention of engaging and connecting with the group.

THIS CLASS IS OFFERED THROUGH CAPITAL PHOTOGRAPHY CENTER **PLEASE REGISTER WITH CAPITAL PHOTOGRAPHY CENTER, NOT MEETUP!** https://capitalphotographycenter.com/classes/class/2026-06-28-creative-phone-photography-chinatown-penn-quarter Learn smartphone camera settings for creative images. From essential techniques for exposure, to composition and focusing tips in this vibrant DC area. We begin outdoors at the National Portrait Gallery and then explore the surrounding Chinatown/Penn Quarter area with its quirky architecture and street scenes. The class will start with basic instruction on the operation of the native mobile phone’s camera. We’ll then cover some of the more advanced features of setting focus and exposure independently. We’ll explore how to turn the mobile camera’s limitations such as one lens, fixed aperture, no zoom and a small sensor to advantages using creative techniques of focus, exposure and composition. You’ll create pictures on an easily paced photo walk with guided instruction coupled with gentle critique and suggestions to make your pictures the best they can be. This class is designed for users of iOS and Android mobile devices. Participants will need to bring a fully charged phone. Questions can be directed to Marie Joabar at info@capitalphotographycenter.com Class limit: 8-10 *** **THIS CLASS IS OFFERED THROUGH CAPITAL PHOTOGRAPHY CENTER** https://capitalphotographycenter.com/classes/class/2026-06-28-creative-phone-photography-chinatown-penn-quarter

🎉 **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 June 28, 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 puzzles and good times. See you responsibly at the meetup!

We will be visiting the new National Geographic Museum of Exploration the weekend it opens, on Sunday June 28th. This is conveniently located about a quarter mile walk from the Farragut North metro on the Red Line. Please purchase your tickets here ($31.79/adult): https://moe.nationalgeographic.org/en/visit/tickets Please select the entry slot for 11 OR 11:15am. Update - 11am is sold out. Please purchase for 11:15am before these are sold out as well. We can request the museum to let us in at once (they have done so in the past). We will meet at 10:45 in the lobby.

Open gaming at Panera! New players welcome. We have many games on hand or you can bring your own. We are happy to teach or learn one of yours.

We meet, watch formula 1 races, drink PJ's Coffee, eat beignets, and have fun! That is all!

Let's get together to play some competitive quads and doubles volleyball. **COST**: FREE **Court Type**: Outdoor grass **Minimum Skill Requirements**: Intermediate (click [here](https://docs.google.com/document/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/mobilebasic) for details) Attention: 1. This event is **NOT on a first come-first serve** basis and players with higher skill level and players who can bring a net/ball will get priority over others on the wait list. 2. Since skill levels are **self-reported**, some new attendees may not meet the expected level. For doubles, we encourage you to choose a partner you can enjoy the game with, and since this a competitive event, it is okay if you make a strong team and win all the games. 3. Each person must help set up and take down one net, leaving some nets unset for latecomers. 4. Please answer all questions, so it's helpful for us to organize the event. **Smiley Social documents:** 1. [Group Rules](https://docs.google.com/document/d/1HrG35p_0M08leRvCp8XWG3CMkr_GL928XFabl5T6Dvg) 2. [Smiley Social Volleyball Levels](https://docs.google.com/document/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/edit) 3. [Good doubles partner](https://docs.google.com/document/d/14weEw-P52XKx0P8K2l-ZOFtYU61wmfdkSkopbG5avro/) 4. [Liability Waiver](https://docs.google.com/document/d/1W2mq-7m99lmvd7gdWYaSUFtvVg4UGnzV6koafAbHmco)

Come join us for in-depth discussions on topics relating to moral and political philosophy. This is a group for members who are comfortable discussing topics that are often anxiety producing and controversial. *"Aristotle was a realist who believed that reality and knowledge are found in the physical world, accessible through sensory experience and logic. This led to contrasting views on ethics, politics, and the nature of reality itself. Plato emphasized abstract, ideal concepts, while Aristotle prioritized empirical observation and the study of the natural world."* \- Google Gemini Following Aristotle's lead, this group will lean heavily on empirical data to make arguments. The Socratic method is still the preferred way to engage in conversation, and Platonic Idealism is still relevant to the conversation as points of reference.

MoCo Code and Coffee is an inclusive, informal, co-working session. We're community-led and community-run by devs, for devs. People of all skill levels are invited. Especially new devs! Bring a laptop, ideas, and we'll provide the coffee and snacks. Huge thank you to our new venue sponsor, Bethesda Green. Bethesda Green is a 501(c)(3) nonprofit working to build a more sustainable local economy. As an incubator, connector, and community partner, Bethesda Green supports mission-driven startups through the Innovation Lab, helping social-impact founders grow into thriving, purpose-driven businesses. Consider signing up for their newsletter here: https://bethesdagreen.org/subscribe-to-the-bethesda-green-monthly-newsletter/ **Here's how Code & Coffee works** At 2:30pm, everyone introduces themselves and briefly mention what brought them to Code & Coffee today (project, homework, networking, etc.) Round 1: 1. Your name 2. What you're working on 3. What you can help others with Round 2: * Job opportunities you're hiring for OR announce that you are looking for one. If none, that's cool. Round 3: * Community events you wanna plug. If none, that's cool too. **After the introduction circle, everything is self-organized!** 1. For the rest of the day, folks work on their projects, providing one another with help, and/or socialize. It's fully up to you. Photos and video will be taken at this event for use in our social media. If you'd rather not appear in any of them, just let us know ahead of time and we'll make sure to keep you out of the shots. **Location** We will be at Bethesda Green. This location is on the second floor of the Capital One Building. Enter the main building as if you are headed to Capital One, then go up the stairs to your right. PLEASE NOTE: There is no working elevator at this time, stairs only. 4825 Cordell Avenue, Suite 200 Bethesda, Maryland 20814 The event will be held in the conference room and shared workspaces of Bethesda Green. Light refreshments (coffee and tea) and snacks will be provided. **Parking** * Participants may park on the street or in nearby parking garages. **Public transit** * Located near near the **Bethesda** metro station (Red Line).

**Join us in Falls Church for conversations that go beyond small talk.** Higher Grounds – Falls Church is where this growing network of gatherings began: a space for thoughtful, authentic dialogue about what matters most. Whether we’re exploring the nature of happiness, the challenges and possibilities of midlife, spirituality, culture, capitalism, parenting, or the role of art and travel in a meaningful life, every conversation is shaped by the people in the room. There’s no set leader or rigid agenda—just a shared commitment to listen as much as we speak. We start with brief introductions focused on what makes you *you* (not your LinkedIn bio), then dive straight into whatever is on people’s minds. The direction of each meetup emerges organically, making every event unique. MANDATORY: PLEASE REVIEW OUR COMMUNITY GUIDELINES IN THE GROUP DESCRIPTION. Everyone is expected to engage in respectful conversations and listen deeply as well as share. We have a zero tolerance policy of sexual harassment and hate speech. Come ready to share, reflect, and connect with others in Falls Church who are also seeking deeper conversations. **Suggested Questions: Life Stages & Transitions** 1. What did you think you'd have figured out by now that you're still completely winging? 2. When did you realize your parents' advice was for a world that no longer exists? 3. What are you finally old enough to stop pretending to care about? **Suggested Questions: Identity After the Roles** 1. Who are you when nobody needs anything from you? 2. What dream keeps resurfacing even though the "practical" time has passed? 3. How do you handle having the freedom you always said you wanted? **Suggested Questions: AI & Being Human** 1. What human experiences will AI never truly understand? 2. If machines handled all your have-to's, what would you actually do? 3. What becomes more precious as everything becomes automated? **Suggested Questions: Belief & Meaning** 1. What certainties have you given up, and what rushed in to fill that space? 2. How has knowing someone who died changed how you live? 3. What do you believe now that would shock your younger self? **Suggested Questions: The Modern Psyche** 1. What anxiety do you carry that previous generations didn't have? 2. Which of your survival strategies are you ready to retire? 3. What uncomfortable truth about happiness did it take you years to accept? **Suggested Questions: Work & Purpose** 1. When did you stop believing that your job would complete you? 2. What would you do for work if money and status weren't factors? 3. How has your definition of "making it" changed over the years? **Suggested Questions: Relationships & Connection** 1. What relationship dynamic do you keep recreating, and why? 2. When did you realize your parents were just people trying their best? 3. What kind of loneliness doesn't go away even when you're with others? **Suggested Questions: Time & Mortality** 1. What are you running out of time to say or do? 2. How differently do you spend your time knowing it's finite? 3. What will you regret not trying, even if you fail? **Suggested Questions: Society & Culture** 1. What social convention do you follow even though it makes no sense? 2. Which generation do you understand least, and what might you be missing? 3. What aspect of how we live now will seem insane in 20 years? **Suggested Questions: Personal Philosophy** 1. What rule for life did you create after learning something the hard way? 2. When did you stop believing that everyone else had it figured out 3. What paradox about life have you learned to live with?

PLEASE CHECK THE ONLINE MEDITATION CALENDAR FOR DETAILS OF THESE MORE THAN 50 SERVICES A WEEK- https://onlinemeditation.yogananda.org/calendar/

Welp, it's official. I'm moving to Taiwan on June 30. It would be great to see everyone before I go!

This is the second and final part of our discussion series on Middlemarch by George Eliot. This meeting will be dedicated to talking about the entirety of Middlemarch. We will be reading books 5-8 and discussing the work as a whole. Participation in the first meeting is not required, anyone is welcome to join in. We will be meeting in the National Portrait Gallery Atrium To stay up to date with events and discuss meetings or books, you can join our Discord group. Please message me to be added.

We have moved to guild.host. Look us up there. https://guild.host/events/buckeye-cocoaheads-rcavwd

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

**Don’t miss your opportunity to learn from a duo with over 16 years of experience combined. During this demonstration event, you can expect to learn how to direct and guide your creative vision through lighting and communication to your model. We guarantee you will leave this event feeling more confident to try new lighting set ups to match up with your anticipated outcome. Finding the right way to express your vision is key to getting your model to pose accordingly, so we got you there too! To take this even further, think about signing up for a tutorial spot following the demonstration.** ***Note: this is a demonstration event only, you will not shoot your own images. However, if you bring your camera we can test it for compatibility with the studio lights.*** **Following the demonstration will be a tutorial/coaching event - sign up separately if you are interested at** https://calendar.app.google/ZcHb4CQB2rrV3U7j9 **Save and book both for $199 (discounted from $215; the discount will be applied on the Tutorial invoice).**

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: This month Chris Pazsint will be talking about Agentic Coding. How does one use CLI Based Agents, and Agentic IDEs such as Cursor, Kiro, Antigravity? How to include agentic coding plugins for IDEs you already love such as Visual Studio Code. We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com

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.

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