Robotics

***In Person Location:*** Rockville Library, second floor meeting room (Collaboration Room 3). Will recreate our Preamp circuit board inside EasyEDA to make it shareable for others. This ideally will also allow us to finish up design enough to submit for a materials grant program. We are experimenting with a new virtual join link - [https://meet.jit.si/mocomakers](https://meet.jit.si/mocomakers) If you can make it in person, that's always recommended! Let's resume repeated full end-to-end testing cycles and continue to iterate our design and resolution. We are getting close. 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. Does it sound hard? Perhaps.. However! I have every confidence that we are now operating at a level were we can take on this mean, cross-functional project. We continue to build on our past successes, and a key technology we previously applied was increasing the signal of small voltages using OpAmps - which we did during our custom pH Probe project - [https://www.mocomakers.com/ph-probe/](https://www.mocomakers.com/ph-probe/) \- That technology is exactly what we need to get this machine working\, and at a high precision\! 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 have a bit over $2,000 in materials costs, so if you want to sponsor this project, and get banners at events with 20K attendees, and access to our email broadcast of 30K members, please contact matt@mocomakers.com We are also open to university, lab, or community partnerships so feel to reach out if you want to be part of this project. Together, we can do incredible things. ***In Person Location:*** Rockville Library, second floor meeting room (Meeting Room 3). To Join Virtually: https://meet.jit.si/mocomakers

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!

HANDS-ON (Bring your notebook or laptop computer...) Have you ever taken a workshop and asked yourself why your images didn't look like the instructors or your images just don't have the polish that other photographers have? "FINISHING" YOUR IMAGES IS A KEY TO PROFESSIONAL PHOTOGRAPHY SUCCESS! If you have taken any of our NVPPA workshops, PPA Super 1 Days, other 3rd party workshops, or held your own client sessions, this is the chance to get the knowledge on exactly what to edit to strategically take your images to the next level. Competition judges will notice these flaws first! The techniques applied are targeted to make your images way better -- FAST! You will LEARN HOW TO improve your portrait and lifestyle people photography by applying strategic edits to one or more images in Lightroom accompanied by some Photoshop (when necessary). These Lightroom techniques and unique application of these tools are seldom used but fast and effective. The students will be able to follow along with the edits using the same image as the instructor. A follow-along outline and practice files are provided. The Lightroom portion focuses on- and demonstrates the specific use of the basic and ADVANCED tools of the Develop Module; it's assumed you have some knowledge already of the Library Module, rating images, and organizing your images into Collections. PLEASE COME TO THIS WORKSHOP WITH YOUR SELECTED IMAGES FOR CRITIQUE OR EDITING ORGANIZED INTO COLLECTIONS AND READY-TO-VIEW! This will save us valuable time :-). HERE ARE JUST SOME OF THE TECHNIQUES YOU WILL LEARN: • Lighten & Resolve Shadowy Eye Sockets With Just a Click (No Brush)! • Add More Depth & Dimension to Your images! • Correct Bad Skin-tone & White Balance • Learn 5 Ways To Resolve Glare Or Highlights On Face, Cheek, Hands, or Shoulders (Lr And Ps) • Correct Catch Light Problems: Quickly Add a Missing Catch Light in an Eye W/O Ps and Only 2 Clicks! • Change Light Direction From Broad to Short • Identify & Correct Blocked Up Blacks. Why is this Bad? • Identify & Improve Bad Composition • Improve Focus or Sharpness: Quickly Understand the Sliders and Identify What Each Controls • Reveal & Correct Overexposed Highlights • Remove Stray Hair (Ps, Studio Example) ONE-ON-ONE INSTRUCTION! For the final portion, we will answer specific questions about your own images. Due to the small class size, you will receive individual and specific instruction! QUESTIONS: We will be glad to help with any questions. Please contact the instructor and host of this workshop by clicking on Philip's profile image above. You can also email workshops@gallery252.com (no spam please). TO REGISTER: 1. Please RSVP to the right or message/Contact Philip Brasch via his profile in the right sidebar to express your interest. You will not be able to RSVP with the button in the upper right sidebar if you are not a member in this group. 2. Either way, PLEASE complete this short and secure (https) Registration and Contact Information FORM (https://goo.gl/forms/HFsiT6bL9Ntx4nfx2) <== Click this to register for this course! We will not share this information to other parties. Or click or paste this URL into your browser: https://goo.gl/forms/HFsiT6bL9Ntx4nfx2 . *** RSVP NOW! *** INVESTMENT: There is an investment for this professional photography workshop of $89. NVPPA Gold Members (paid) receive a $10 discount. Contact Philip for the discounted link. • FIRST, please RSVP on this site so we can meet you and know you're attending. • SECOND, classes are purposely kept small so we need a commitment to hold your spot beyond 24 hours; please remit your investment here via PayPal for $89: https://tinyurl.com/yxsvw5rd • Onsite registration or after Wednesday 11:59pm the day prior to the workshop: $109 https://tinyurl.com/y4y8lzf5 ---------------------------------------------------------------------------

Have you been thinking about trying self-defense training, but do not want a loud, aggressive, or overly competitive environment? This free intro class is a simple way to get started. Maryland Systema offers practical self-defense training for adults in Takoma Park with a focus on movement, awareness, breathing, posture, and calm under pressure. This class is designed for beginners and first-timers who want real-world self-defense training in a welcoming setting. You do not need experience. You do not need to be in top shape. You do not need a martial arts background. You just need to show up ready to learn. This is not a sport-based class built around winning points, memorizing routines, or trying to look impressive. It is a more practical approach to adult self-defense training that helps you stay balanced, aware, and functional when things feel uncertain. If you have been searching for self-defense classes in Takoma Park, beginner self-defense near you, or practical self-defense training for adults, this class is a good place to start. **What you will work on** * Breathing and staying calm under pressure * Movement that improves balance and mobility * Awareness and posture * Simple partner drills * Practical self-defense training for beginners **Who this class is for** * Adults new to self-defense training * Beginners looking for a low-pressure class * People who want practical self-defense instead of sport martial arts * Adults in Takoma Park, Silver Spring, Rockville, and nearby areas looking for realistic self-defense classes **What to wear** Please wear comfortable workout clothes. No uniform is required. **Why start with this class** This free intro class gives you a chance to experience the training, meet the group, and see whether Maryland Systema is the right fit for you before joining regular weekly classes. **RSVP** Reserve your spot and come try a beginner-friendly self-defense class in Takoma Park.

**RSVP DOES NOT GUARANTEE YOUR SPOT. You must register via our website:** [https://www.katiereifertvbcamps.com/krvc-adult-volleyball-camps.cfm](https://www.katiereifertvbcamps.com/krvc-adult-volleyball-camps.cfm) **Defensive Skills & Setting Camp** This camp is designed for **adult volleyball players (ages 20 & above)** looking to improve their defensive & setting skills. Ideal for **all skill levels**, this camp offers an opportunity to receive skill instruction from George Washington's coaching staff. Defense & Setting Skills Camp is designed to develop well-rounded back-row defenders and setters by blending high-level defensive training with position-specific setting work. This session allows defenders to sharpen their floor skills while providing setters with focused, individualized technical training. **What to Expect:** Players will work on defensive techniques including platform control, reading hitters, movement patterns, & ball tracking in fast-paced, game-like drills. Back-row defenders will also learn how to set out-of-system to expand their skill set & decision-making. Setters will receive high-level 1v1 technical training while also spending time working on their own defense & blocking, helping them become more complete, well-rounded players on the court. We will spend the first hour & a half on skill instruction & the last 30 minutes playing competitive 6v6. 6v6 play will be recorded & distributed to participants so you can track your progress! **Camp Schedule:** 🗓️ *Thursday, April 16th* * 6:45 PM – Doors Open, Check-in begins at the Charles E. Smith Center * 7:00 PM – Camp Begins * 9:00 PM – Camp Ends **Important Info:** * **You must register via our website:** [https://www.katiereifertvbcamps.com/krvc-adult-volleyball-camps.cfm](https://www.katiereifertvbcamps.com/krvc-adult-volleyball-camps.cfm) * This camp is for **adults only** – you must be **above the age of 20 or have exhausted your NCAA eligibility.** * You will enter the Charles E. Smith Center at the **Ticket Office Entrance**, located on 22nd St. * **Please do not arrive early; basketball will be finishing up their practice at this time & we cannot accommodate your arrival earlier.** * Payment is due at the time of signup. * If you have questions, please contact us at themonumentalexperience@gmail.com * *By registering, you agree that we may use your photo for marketing.* We can’t wait to see you there!

Come volunteer with us refurbishing donated bicycles so that they can be used again by the community! This event is open to new volunteers and existing volunteers. No mechanical experience is necessary. Note: The warehouse location is in the alley behind 1502 Mt Vernon Ave. Enter through the gray door next to a roll-down garage door. If you drive to the location, be sure to park in the street, not in the alleys or parking lots surrounding the warehouse. And wear clothes you don't mind getting dirty with bicycle grease! Volunteers under 18 need a parent or guardian to accompany them to their first volunteer experience and sign a liability waiver. Volunteers under 16 need a parent or guardian to accompany them at all times while volunteering with Vélocity.

Let's get together to play some fun BB level Quads games at Bluemont. **Format**: Doubles **COST**: FREE **Court Type**: Outdoor grass **Minimum Skill Requirements**: Intermediate-BB (click [here](https://docs.google.com/document/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/mobilebasic) for details) \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **Smiley Social documents:** 1. [Group Rules ](https://docs.google.com/document/d/1HrG35p_0M08leRvCp8XWG3CMkr_GL928XFabl5T6Dvg) 1. [Liability Waiver ](https://docs.google.com/document/d/1W2mq-7m99lmvd7gdWYaSUFtvVg4UGnzV6koafAbHmco) 1. [Volleyball Levels](https://docs.google.com/document/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/)

To secure your spot, purchase your ticket from the Eventbrite link ([https://www.eventbrite.com/e/birthday-sunset-bottle-service-cruise-tickets-113727048664](https://www.eventbrite.com/e/birthday-sunset-bottle-service-cruise-tickets-113727048664)). RSVPing only on the Meetup page, doesn't allow you to attend the Event. ABOUT THE EVENT Let us celebrate your birthday in a grand style, on a cruise ship, with unbeatable Breathtaking DC panoramic cityscape on the Potomac River and a two-hour TOP SHELF free flowing Bottle Service. ***Yes, what you read is correct, two full hours of Open Bar!*** Lock in your savings now and save your spot at the grandest Cruise Party! Tickets are limited and prices will increase. The event will sell out early as usual. The only thing you need to bring for this all inclusive cruise is your ID! Join us for an enchanting Cruise Party filled with breathtaking views along the Potomac river, music, dancing, and many more. What to look forward to: * EXCLUSIVE ACCESS TO THE CRUISE PARTY * 2-HOUR PREMIUM BOTTLE SERVICE * MASSIVE CRUISE Dress: Dress to impress Ticket Options: 1\. Table for 6 people : * Access to the Cruise Party * 2-hour Premium Bottle Service * * Massive Cruise 2\. Velvet Rope Experience/Individual Ticket : Splurge on the Velvet Rope experience and let us bring the party to you. This package includes all the offerings of the Table Service. However, you have to share the table with others. For instance, if you are buying the individual ticket for two people, you will be sharing the table with four other people. * Access to the Cruise Party * 2-hour open bar * * Massive Cruise ***Individual ticket holders, if you are celebrating your birthday or any moment in your life. Please let us know ahead. So that we will toss for you!*** Event will occur whenever a rain date is rescheduled. \- For birthday specials email \(info@merevents\.com\) OR text 202\-368\-1878 \- Event is 21\+ \- 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 \*This event usually sells out and this won't be an exception. \*\* Detailed meeting point will be send to ticket holders. Payment Instructions : 1\. You should login from a PC to see the 'Pay Now' button\, after RSVPing\. Then hit the button\. 2\. Verify correct dollar amount for number of people you're paying for\. **3\. If you don't have a Paypal account\, click "Pay with a Debit or Credit Card"\.** 4\. If you have a Paypal account\, simply log in\, and pay as you normally would via Paypal\. **How to Unblock the Pop-up Blocker on Your Phone** Many of our patrons advised us that they have a Pop-up Blocker on their iPhones and it hinders them from buying tickets. To unblock, please follow the following steps : For Safari Users : 1\. Go to Settings\. 2\. Scroll down to Safari and click on it\. 3\. Select Block Pop\-ups and turn it off\. For Google Chrome Users : 1\. Open Google Chrome\. 2\. Click on the three dots and you will see many options\. 3\. Click on Settings\. 4\. Scroll down to content settings\. 5\. Select Block Pop\-ups and turn it off\. Refund & Ticket Resell Policy All sales are final. We only refund the full amount, if the event is canceled. If it is rescheduled, we will send an email to ticket holders advising that. A full refund will be given to those that let us know within 2 calendar days of the update email, if you are unable to make it on the new date. No refunds will be given after that time. However, you can sell your ticket to someone else if you are unable to attend. Please, feel free to post in the comment box for the event, that you have a ticket for sale. Work out payment between yourselves, and have the seller only send the organizer a message letting us know the full name of the person taking your spot. You must let us know two hours before the RSVP close time, on the day of the event. PARKING INFO Parking might be a challenge and the event involves drinking. We highly encourage you to take a ride share or taxi service. DRINK RESPONSIBLY. **FOR FURTHER INFO, REFER THE EVENTBRITELINK. IT RULES.**

Title: Potential Applications of Negative Radiation Pressure in Astronomy, Medicine and 2WQC Date: April 19 2026 10:00 am - Noon EDT (16:00 - 18:00 CET) Abstract: While we are used to heating and pushing with light, there is also optical cooling and pulling. I will talk about negative radiation pressure, potential ways to generate it, and its novel applications, like non-ionizing medical scanners, 2WQC (two-way quantum computers) in theory solving NP problems, also potential astronomical sources and their observation. Speaker: Dr Jarek Duda is an assistant professor at Jagiellonian University. He holds degrees in computer science (PhD), mathematics (MSc) and physics (PhD). He is mainly focused on physics foundations, information theory, statistical analysis, and is known for introduction of asymmetric numeral systems.

Title: Foundations of Localized Symmetry Mathematics Date: April 18 2026 Noon - 14:00 EST Summary: The moment you use Euclid’s definitions of points and distances in any of your mathematical axioms, all that follows is assured to produce some level of nonsensical results when applied to the foundations of physics. The reason is not complicated: Euclid’s definitions are deeply mired in accepting as a “given” the very concepts that emerge only in well-defined inertial frames, which in turn are local instances of symmetries that are always finite and context dependent. In this talk, Terry will discuss how reframing mathematics in terms of symmetries that, as in the real world, are finite, composite, and dependent on self-observation (acceleration), results in a richer and far stranger set of mathematics in absolute conservation of quantum numbers generate local and global symmetries — the opposite of Noether’s theorem — that in turn create the emergent classical phenomenal such a particles, fields, space, and time. Speaker: Terry Bollinger is a computer scientist with BS, MS, and professional degrees from the Missouri University of Science and Technology.

I’m hosting a small, in-person workshop series at **Spiritual Essence Yoga Studios** called **[Rising Above Self-Sabotage](https://www.spiritualessenceyoga.com/workshops?mobile=false&options%5Bids%5D=3142&options%5Bsite_id%5D=3903)**[.](https://www.spiritualessenceyoga.com/workshops?mobile=false&options%5Bids%5D=3142&options%5Bsite_id%5D=3903) If you’ve ever felt stuck starting and stopping, overthinking your next step, or wondering why it’s so hard to move forward on something that really matters to you, you’re not alone. This workshop is a space to explore those patterns and learn simple, practical ways to move forward with more clarity and self-trust. It’s a **3-part experiential series** where we’ll explore what self-sabotage really is, why it shows up, and how to gently shift it so you can build momentum toward your goals. **Dates:** April 18, April 25, and May 16 **Time:** 10 AM to 12 PM **Pricing:** Early Bird pricing for series is $135 through April 4, and $165 after. Drop in pricing per session is $65 This is a small, supportive group and no prior experience is needed. Learn More + Register Here 👉 [Link to Workshop Details](https://www.spiritualessenceyoga.com/workshops?mobile=false&options%5Bids%5D=3142&options%5Bsite_id%5D=3903)

## Join Our AI Workshop! Get ready to dive into the world of artificial intelligence at our fun and interactive in-person AI Workshop. Whether you're a newbie or a tech enthusiast, this is the perfect place to learn, experiment, and connect with like-minded folks. Don't miss out on hands-on sessions, cool demos, and great conversations. See you there! TO REGISTER - https://www.eventbrite.com/e/1984517585520?aff=oddtdtcreator Seema Alexander, Founder & CEO, Disruptive AI Hour 1 — Understanding the Moment ● Why AI is bigger than a tech trend ● The “Yes-And” era: optimize AND reimagine ● AI fluency for non-technical leaders ● Automation vs. agents vs. intelligent systems ● What this means for students, small businesses, and women building in this moment Hour 2 — Interactive AI Fluency Lab ● Live exercises to solve real world problems with learned AI concepts ● Audience-driven experimentation ● Small-group collaboration ● Frameworks attendees can immediately apply ● Group pitches Strategic AI Tool Exposure (1 Hour) Led by Marcus Finley, Chief AI Officer, Disruptive AI (or designated team member) Participants will experience powerful AI tools in real time, including: ● Business productivity AI ● Creative AI applications ● Workflow-enhancing AI systems This is a guided demo + interactive environment. Attendees follow along on laptops. PART III — Vibe Coding Intensive (2 Hours) Led by Addie Cruz, CEO of Clarity App & Vibe Coding Platform Ambassador This session demystifies building. Participants will: ● Explore vibe coding platforms ● Build simple, functional AI-driven outputs ● Learn beginner-friendly creation techniques ● Gain confidence experimenting with AI tools This is hands-on. Every attendee must bring a laptop.

**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** GitHub Copilot is powerful, but what if you could scale from a solo AI assistant to an entire team of specialized agents working in parallel? This session introduces Squad: an open-source framework for multi-agent orchestration that lets you define teams of AI agents with specific roles, responsibilities, and expertise. We'll progress from Copilot basics to the Copilot CLI, explore how Agents add autonomy, and see how Instructions and Skills let you customize agent behavior. Then, the climax: a live demo where a Squad team of 3 agents (Lead, Developer, Tester) stands up and builds a working application in real-time, showcasing true multi-agent collaboration. Whether you're new to AI or exploring how to scale your use of Copilot, this session will show you what's possible when agents work as a team. **YouTube Link** TBD

Let's bedazzle some books while we discuss our April pick: Bloodguard by Cecy Robson! Book description: One hundred years. Tens of thousands of gladiators. And today, only one will rise… Everything in the Kingdom of Arrow is a lie. Leith of Grey thought coming to this new land and volunteering to fight in the gladiator arena—vicious, bloodthirsty tournaments where only the strongest survive—would earn him enough gold to save his dying sister. He thought there was nothing left to lose. He was wrong—and they took everything. His hope. His freedom. His very humanity. All Leith has left is his battle-scarred body, fueled by rage and hardened from years of fighting for the right to live another day. Then Leith meets Maeve, an elven royal who is everything he despises. Everything he should hate. Until the alluring princess offers him the one thing he needs most: a chance to win the coveted title of Bloodguard—and his freedom. But in a kingdom built on secrets and lies, hope doesn’t come cheap. Nor will his ultimate revenge… Event: Please bring your own book, journal, bookmarks, etc to bedazzle. If you have bedazzling supplies, please bring them as well. I will supply gems, glue, and picker tools, but if you have certain colors in mind, you may want to bring your own.

AI is changing how art is made. But when does it stop being your work and start being the machine’s? This month we're going to be doing a panel with with digital image, music, and written word artists, talking about at what point, while using AI in the creation process, does the work become not the artist creation? We encourage audience participation during this event that will be moderated by Chris Slee. Whether you’re deep in the field or just getting curious, come connect with others building and exploring AI in Columbus. Sponsored by [Transform Labs](https://www.transformlabs.com/services) Sign up also accessible via [Transform Labs Luma](https://luma.com/55umjqta)

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. This session will be at the Worthington Park Library in the Olentangy Meeting Room.

**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

**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

Join other experienced and aspiring agile coaches and professionals to: * develop and practice your coaching skills in a peer-to-peer environment * share current successes and challenges in your work environment and get support from each other * learn from each other, build better relationships and experiment with new ideas ***NOTE:*** Pre-registration is required for this event. **Please arrive 10 minutes early** to check in at the security desk.