Computational Science and Engineering

• What we'll do On https://blackecon101.podbean.com/ Thursdays at 6 pm. discussing the economy....

Today we are Steve's Lab. RSVP and you'll be sent the location. It's in Silver Spring. ***Join us for an evening in an electronics lab where we will attempt to run clean scans of graphene and gold samples, and then clean up that data with post processing.*** This is a high sensitivity experiment, and we do not plan on being successful so early. But we've had promising results lately - so we will be putting in the time. We are NOT meeting at our usual location, but rather at Steve's house/lab. If you RSVP, you will get a DM with the address but it's located in Silver Spring. We will attempt full, clean lab - clean tip repeated scanning tests to see what we can learn and improve. We will experiment with online attendees, but if all possible showing up in person is strongly encouraged. Online join link is: - [https://meet.jit.si/mocomakers](https://meet.jit.si/mocomakers) Our community is building (and documenting for other teams) how to build a scanning tunneling microscope using a mix of common and 3D printed parts. This will allow us to scan and visualize a single atom - an ambitious we are doing over the course of a few months. The MoCo Makers community is one of the most innovative and competent groups in Maryland, and we've done everything from [publishing cancer research](https://pubmed.ncbi.nlm.nih.gov/38136356/), to [launching products](https://www.kickstarter.com/projects/gotim/cozy-curvy-multi-contour-pillow), [winning grants](https://covidinfocommons.datascience.columbia.edu/awards/2014255), and inspiring thousands. Now our biggest challenge yet has appeared. We are building a Scanning Tunneling Microscope, that will allow us to scan and visualize single atoms. To get a better idea of what we are doing, see our reference project here: [https://www.youtube.com/watch?v=7N3OqTEq08g](https://www.youtube.com/watch?v=7N3OqTEq08g) All starting CAD, code, and reference files should exist. However, let's be the first Maker community to document the build process and share it with learners around the world. We will be publishing our work here -[ https://hackaday.io/project/202816-qt-panda](https://hackaday.io/project/202816-qt-panda) If you need a ride, let us know.

Join us for the first gathering of **DC Digital Minds**, a new meetup for people interested in AI, consciousness, digital minds, the human-AI relationship, ethics, policy, and the strange new questions emerging at the frontier. This kickoff will be casual and friendly: no lecture, no homework, no need to arrive with settled views. Come get to know other curious people over Greek food at **Zorba’s Cafe,** share what drew you to the topic, and bring ideas for future meetups. Whether you’re a researcher, technologist, policy person, philosopher, writer, student, or just someone who keeps thinking “wait, what *are* these systems becoming?”, you’re welcome. We’ll use this first gathering to meet each other, compare interests, and start shaping what this group can become. **What to expect:** Informal conversation, introductions, food/drinks available for purchase, and a chance to suggest future topics and formats. **Where to find us:** Your group organizer, Jessie, will be upstairs and to the right as you reach the top of the stairs.

We will be meeting at Starbucks to learn together. Come with an online class you're already going through or an interest and we will try to connect you with a course where you can learn it. Already have a skill you want to contribute to a Kaggle Datascience competition? We will work on these too! Laptop required :)

This meetup is for beginner players that were not able to attend the original Meetup back on April 8th. Players will be building their investigators for the first scenario. No need to bring anything with you. I have all the supplies you will need. We will meet at Kaldi's Social House at 3100 10th Street N. Arlington. If you have any questions feel free to send me a private message.

*Sometimes we invite Neurodivergent District members to join a virtual event from our Constellations community. We’re glad you’re here.* *Just to clarify, attending this event doesn’t include access to the Constellations member portal or membership. If you’d like ongoing access to events like this, along with curated member introductions for friendship or dating, you’re welcome to explore joining [Constellations](https://www.harringtonmatchmaking.com/constellations-membership).* Join us for a low-pressure in-person meetup at [Upside on Moore](https://upsideonmoore.com/) food hall. Located on Level “M2” at 1700 N Moore St, Level M2, Arlington, VA 22209. We’ll be meeting in the back near Ghostburger. If you’re sensitive to crowds or louder environments, this may not be the best fit. Click **[here](https://harringtonmatchmaking.as.me/schedule/0cfadc2d/?appointmentTypeIds[]=92645326)** to RSVP.

[RSVP on Partiful](https://partiful.com/e/UCYdKHbiXcyGLGai3KJf?c=jn9txKC1) Join Network of South Asian Professionals at our monthly Third Thursday series on Thur, May 21, 6-9. Come to connect over careers or interests or just make some new friends. We ask guests to cover their own tab and we may continue the night with a walk to the wharf after the event. RSVP at our partful link to see who is coming. See you soon!

Join our casual open forum to explore any AI topic that interests you. This is a relaxed, participant-driven discussion. No agenda, no presentations. Just conversation. Bring whatever’s on your mind. We might cover: * New AI tools and breakthroughs * Prompt engineering tips * Ethics and societal impact * Experiments with tools like ChatGPT, Claude, Grok, Midjourney * AI in art, coding, business, or daily life * Big ideas, future predictions, or “what if” scenarios Jump in, ask questions, share experiences, or just listen. Whether you’re new to AI or deep into it, you’re welcome to join and talk about whatever’s on your mind.

***[Prepare for the Balls](https://dancesportendurance.com/glenechoviennesewaltz/) with the National Capital Region’s most elegant of dances!*** Only $20 for the full workshop and social dancing! Dates/Times: Saturday 4/11: 230-5 (230-245 warm-up; 245-415 lesson, 415-5 social Viennese Waltz dancing) Where: Glen Echo Park 7300 MacArthur Blvd., Glen Echo, MD 20812 What: Prepare for the DMV ball season! Learn basics of social Viennese Waltz in this work shop with Todd and Migle which includes 1.5 hours of lessons and 1 total hour of supervised dancing and social dance. Todd and Migle have performed solo at the Hofburg Palace in Vienna, the Kennedy Center, the Austrian Embassy, and the White House, and have taught hundreds of waltz camps and workshops. They love sharing social dance skills and look forward to teaching dance at Glen Echo! [Register here!](https://dancesportendurance.com/glenechoviennesewaltz/)

Our first Technoverts meetup had a great turnout, so we're doing it again, this time with an optional conversation theme: **How people are actually using AI in everyday work and life**. This is not a panel or presentation, and I do not have a fixed agenda, it's just a relaxed coffee conversation for people in tech (or tech-adjacent fields) who are curious about practical AI use cases, useful tools, workflow hacks, weird experiments, and what's generally helping people right now. *Topics might include:* * AI tools people actually use at work * Productivity and automation * Prompting successes and failures * Writing, coding, research, analytics and creative use cases * What feels overhyped vs. genuinely useful. No expertise is required. It's completely fine to come mostly curious, skeptical, or just interested in meeting thoughtful people in tech. *What to expect:* * Low pressure conversation * A mix of tech talk and normal conversation Location: (Subject to change as I do more research) High Point Pub Tyson's Whole Foods, 1635 Boro Pl. (This is the cafe space on the second floor of the Whole Foods at the Boro, Tysons. Parking is free in the garage with validation). Time: 11 am (this is when the cafe opens). Everyone covers their own coffee/snacks. I'll arrive early and grab a table and will post details about location in the event discussion. Address: 1635 Boro Pl. Whole Foods 2nd Floor Cafe

🍷♠️❤️ A Spades Special - A Night of Cards & "Casual" Conversation 🍷♠️❤️ Thank you for all those who participated in our Speak & Spades Night on April 10! We are hosting another event at the same venue in Downtown Silver Spring - Comma's Food Hall inside City Place Mall. This time, it will be more about the game - a traditional night of Spades play, lots of laughs, and Friday fun. ♠️ Spades games will be the main event, from 6pm to 10pm! Play cards, eat, drink, & socialize! Enjoy drink specials and variety of reasonably-priced restaurant options. ❤️ Optional: If interested, conversation cards will be available in the room all evening. No formal discussion or official program is planned. Just engage in open, casual conversations about a variety of topics with those who may want to talk as well. No pressure. Singles and couples are invited! Get matched with a partner onsite. All skill levels are welcome. The fun starts at 6pm! 🍷 Happy Hour Specials all night! 🎶 Live music will be playing 🚗 Parking available in Ellsworth Garage (connected to the venue through the Skywalk) 📷 See the photo section for details 🌜Join us for a night of CARDS....with a little bit of conversation, if you like! Either way, you won't forget it!🌛 <><><><><><><><><><><><><><><

Hey Poetry Lovers! This group is on a roll. Here’s the gist: We meet at the **Capital One Café in Chinatown** from **12pm - 2pm** every other week. For enrichment, we start by reading and reflecting on a **“published poem”**, suggested by someone in the group. No advance preparation is necessary. But feel free to check out some of the poems we’ve read [here](https://docs.google.com/spreadsheets/d/e/2PACX-1vSyE_wCLQCPHRrKmN5F9tOIeeRQUZESxjRXGVBoCF2uU8Gm0_d0uECiCBCQXEy6ksxfsBOhtRIOpW3T/pubhtml?gid=0&single=true&widget=true&headers=false%22%3E%3C/iframe%3E). Or submit suggestions for future meetings [here](https://docs.google.com/forms/d/e/1FAIpQLSexGc2Z2Kp6bZW0D3_hfJ7NUUkfNHf7TXX-43FglCeBd9EF2Q/viewform?usp=send_form). Next, we **share our work and offer feedback**. Depending on attendance, everyone gets \~10 minutes to use as they like. (No need to share, though; you’re welcome to come even if you prefer just to listen.) We maintain a **Discord server** to help share our work and communicate outside our bi-weekly meet-ups. If you haven’t used Discord before, take a moment to download it and create an account before arriving. When we meet you on Saturday, we will add you to our server, the “DC Poetry Workshop”, and can help you navigate the app if you have questions. Finally, if you plan on sharing a poem, consider how you will do so. Some options include: * Print 5-10 copies to distribute in person * Take and share screenshots in the Discord chat. * Copy the poem into a google doc, change sharing settings to “anyone with link”, and copy the google doc link into the Discord chat. Most importantly, we’re excited to meet you! Catch you on Saturday, Diego / Ian / Cayden / Nate / Otasha / Lia / An

Hey Chapter Twoers, come join us this Sunday during Memorial Day weekend for Sichuanese and regional Chinese Cuisine by Peter *Chang* with modern cocktails and dessert. If you haven't been there, it's one of the best Chinese restaurants in DC.

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!

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** Like it or not, AI agents are now capable of turning a quickly written paragraph of requirements into a pull request that is ready to be integrated into real-world production applications and it's now our responsibility to make sure AI doesn't go rogue and take down prod - or corrupt our data by misunderstanding the requirements or our existing schemas. In this session we'll explore strategies to protect our codebases through unit and integration testing, documentation, and code review along with additional ways of providing context and guard rails to our AI agents as they carry out the work we've assigned them to do. By the time we're done, you'll have a firm grasp of the problem and understand some helpful options for protecting your codebase from vibe coding mishaps getting YOLOed into prod. **YouTube Link** TBD

Most people use AI like a search box: they type one sentence, hope for the best, and get frustrated when the answer is generic, wrong, or useless. But getting better results from tools like ChatGPT, Claude, Gemini, and other AI systems is not about memorizing magic prompts. It is about learning how to give the AI better context. In this beginner-friendly session, we’ll break down how to make AI dramatically more useful by improving the way you communicate with it. You’ll learn how to give clearer instructions, provide examples, set constraints, ask for better output formats, and use follow-up questions to turn a mediocre answer into a genuinely useful one. We’ll cover practical techniques you can use immediately for work, learning, writing, coding, planning, research, and everyday problem solving. We’ll also touch on why these same ideas show up in more advanced AI systems, including RAG, agents, evaluations, and AI workflows. No technical background required. Bring your curiosity, your questions, and maybe one real task you wish AI was better at helping you with. **What you’ll learn:** * Why “better prompting” is really about better context * How to structure requests so AI gives more useful answers * How to use examples, constraints, and output formats * How to iterate when the first answer is not good enough * How these skills connect to more advanced AI workflows This meetup is for anyone who wants to move beyond basic ChatGPT usage and start getting more practical value out of AI. 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.

**Welcome to Drunken Philosophy** a casual, curious social discussion **Optional topic for this meetup: What's up with all the AI hate?** A recent survey found that 74% of Americans have a negative view of AI, and I want to know why. Come out and debate whether AI is good or bad. My hot take: a labor-saving tool that could potentially help cure cancer gets called dangerous because it might raise unemployment or cause a speculative investment bubble, that tells you a lot more about capitalism and the economic system we live under than it does about the tool itself. As a computer programmer, I think AI is a wonderful tool that has increased my productivity by at least an order of magnitude. I'd go so far as to say Claude Code is the best tool I have ever used. Debate me and name a better one. Is AI potentially dangerous? Yes, but so are a lot of tools. Chainsaws. Steam engines (early ones would occasionally explode and kill everyone in the room). Do you think cavemen sat around debating whether fire could be used as a weapon or for self-harm, and decided not to discover it? I have two friends who hate AI for opposite reasons: one thinks it's a fad and not useful, and the other thinks it's going to take over everything and cause human extinction. Come out tonight, have a friendly debate, and make some friends. No lectures. Friendly crowd. Drop in for one drink and stay if it's fun.

QA or the Highway is a one-day, affordable, regional, professional conference featuring real-world experience and thought leadership in the QA and testing industry. This is a ticketed event please register here: https://www.qaorthehwy.com/ Featured Keynote Speakers: **Matthew-Hope Eland** **(Wizard at Leading EDJE)** \- An AI Specialist and Wizard at Leading EDJE who is known to teach software engineering\, AI\, and data science concepts in the most ridiculous ways possible\. Matt has used machine learning to settle debates over whether Die Hard is a Christmas movie\, reinforcement learning to drive the behavior of digital squirrels\, data analytics to suggest improvements to his favorite TV show\, and AI agents to play board games and create an AI agent with the personality of a dog\. Matt is the author of "Data Science in \.NET with Polyglot Notebooks" and "Refactoring with C\#" as well as several LinkedIn Learning courses\. Matt helps organize the Central Ohio \.NET Developer Group\, runs several blogs and a YouTube channel\, has a Master’s of Science in Data Analytics\, and is a current Microsoft MVP in AI and \.NET\. **Tatyana Arbouzova** **(CEO at Innovate QA)** \- Tatyana Arbouzova is an engineering and business leader with a strong background in Quality Engineering across multiple industries\, including Big Tech\, Healthcare\, and Entertainment\. She has held leadership roles at world\-class companies such as Microsoft\, VMware\, Disney\, and The Pokémon Company International\, where she focused on building quality\-driven cultures and scaling teams to deliver high\-impact products\. With decades of experience\, Tatyana has helped organizations transform their quality practices so teams can deliver software efficiently\, confidently\, and with measurable business outcomes\. Today\, Tatyana advises software companies on adopting AI to optimize quality practices and improve how software is delivered at scale\. She is also a passionate community builder and the founder of Innovate QA\, a thriving Seattle\-based community and conference for quality professionals\.

PLEASE NOTE!!! This event will be In-Person for our very 1st Improving collab! If you know the [Columbus Unity group](https://www.meetup.com/columbus-unity-user-group/) location, we'll be at the same place. This is our 1st event and are doing a soft launch with limited attendance. 1st come 1st serve. If you want to be there and we fill up, please email me at [info@thecogg.com](mailto:info@thecogg.com) and I'll be in touch. All street parking is free on Sundays but you can also pay to park in any of the local garages. See image of [parking map here](https://drive.google.com/file/d/1Mr9_LFIggbs-0_Zd3AJTGNqEhgMf2TzQ/view?usp=sharing). \-\-\- On the last Sunday of the month, we're having our usual end-of-the-month social gathering with our GameDev Meetup meeting. There will be announcements and presentations followed by some social networking Let's continue the conversations with good vibes and friends. All are welcomed from all ages and backgrounds to this public event. If we can, we'll be streaming or uploading the video later via our COGG YouTube channel here: [https://www.youtube.com/@TheCOGG/streams](https://www.youtube.com/@TheCOGG/streams) (Also please do subscribe if you have not done so!) No game development experience required! If you are interested in doing a 20 minute game development related presentation, please fill out our form online here: [https://goo.gl/forms/lVdTJZiNJewlPJuj1](https://goo.gl/forms/lVdTJZiNJewlPJuj1) Or e-mail us at info@thecogg.com with the following: Your Name, Company/Affiliation, Name of Your Game/Topic, Description, Tech Needs, and Your Contact. Be sure to check out our Discord for real time news updates: [https://discord.gg/NrBhuNQ](https://discord.gg/NrBhuNQ)

**Latest Dojo Location!** **Knotty Pine Brewing** 1765 W 3rd Ave, Columbus, OH 43212 We're going to try a new dojo location for a few weeks and see how it works Dojos are informal Python group study sessions where everyone interested in Python gathers to learn about Python, help others with Python, or just hang out. Everyone is welcome from Python beginners to experts. Bringing a laptop is encouraged (we'll have extension cords and power strips). If there's something you want to learn leave a comment on this invite so we can plan ahead. We're looking for speakers for our Monthly Meetups! Fill out the form if you are interested in presenting to the Python Community. https://forms.gle/ehSfUAC2WgR34Crq9

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)