Ethical Hacking

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!

***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

Security cleared professionals please join us for the in-person All Clearances Cleared Job Fair, Thursday, April 16, from 2pm – 5.30pm at the Westin Tysons Corner. Whether you’re between contracts, transitioning out of the military / government, or just casually looking around, please join us for this in-person event. Our hiring employers include Amentum, Applied Research Laboratory at the Penn State University, AT&T, Core4ce, E-infosol, Leidos, PCI Federal, PingWind, System High, Teksynap, Tom Sawyer Software 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. For more info and to pre-register visit: [https://clearedjobs.net/events/all-clearances-cleared-job-fair-westin-7801-leesburg-pike-falls-church-virginia-8?utm_source=event+posting+april+16%2C+2026&utm_medium=share&utm_campaign=job+fair&utm_term=april+16%2C+2026](https://clearedjobs.net/events/all-clearances-cleared-job-fair-westin-7801-leesburg-pike-falls-church-virginia-8?utm_source=event+posting+april+16%2C+2026&utm_medium=share&utm_campaign=job+fair&utm_term=april+16%2C+2026)

Come join us for informal tech demos and happy hour! There's no stage, we just shoulder surf laptops and hang out. If there's technical topic you're passionate about or have recently worked on, this is a great opportunity to share with the group. Demos can very short and basic, but should not be a sales pitch or anything illegal. Show off hardware, tools, tricks, techniques, etc. We can also work on public bug bounties. Trophy Room is part of the Graduate Annapolis hotel. Parking is available onsite, and validated if you dine in. We'll organize in the bar/restaurant area. If another event is taking place, we may make use of the lobby or patio.

Happy hour at Lulu's Wine Garden. Come and go as your schedule allows.

How about a weekend Happy Hour over unbeatable prices. Instead of silently doing research on your own, it is well known that when you are regularly connected with people of your own investment interest, you are likely to be more motivated, better informed and less likely to miss out on opportunities. Meet and discuss face-to-face.

## 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.

Right off of I-270, easily accessible. Join us for a fun and friendly pickup soccer game. Games will be held at Walter Johnson High School turf field every Saturday. Look for a red tote bag. When coming to the field. If the field is closed for the day. Backup location will be Stratton Local Park, a 5 min drive from the HS. We will group up and split into two teams to play. Preferably bring a light and dark shirt. To make organizing teams easier. No harsh language No harsh fouls Come to play for fun

We'll come together to talk about writing custom apps. Macoy Madson will show how he applied Handmade principles to creating a custom CAD application for a manufacturing company. He will go over the various features and his criteria for what he picked to build vs buy, as well as lessons learned from the shortcomings of his choices. If we have time, we'll also look at compiling native code to WebAssembly. **Agenda:** \- 2pm \- 3pm: Custom app presentation and WebAssembly \- 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.

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.

**\*TO ATTEND GET TICKET At** [https://www.socialevents123.com/event-details.aspx?id=13395#tix](https://www.socialevents123.com/event-details.aspx?id=13395#tix) (Multiple Meetup groups are co-organizing so the RSVP's shown are just a very small portion attending. We'll have at least 20 registered.) Our last online Bingo Night Party was such a BIG hit, we're doing it again! Do you like to play BINGO or want to just do something different?! Then you will LOVE this event! Here is your opportunity to have some fun playing our Live "Bingo" game. You will also get to socialize and make other friends from the comfort of your home. Prizes included Amazon gift cards, free future events and more! This completely online event will be LIVE and you will be able to see and hear the other participants while playing. You will either need to print or draw out your bingo cards. We will email you with how to get it after registering. You can have more than 1 person on your team as long as they're from your house and use same device. Friends/family around the country can also play. They would just need to also register for a ticket. This event will be held on Zoom which you would access through your computer/webcam, or via your phone/tablet. On day of the event, you will get a secured Zoom link and link to print out Bingo cards. \*RSVPS ON HERE ARE NOT REFLECTIVE OF ACTUAL ATTENDANCE as this is a multi group event. Cost: $15-$20 depending on how early you register. **\*TO ATTEND GET TICKET AT -** [https://www.socialevents123.com/event-details.aspx?id=13395#tix](https://www.socialevents123.com/event-details.aspx?id=13395#tix) To find more fun events: Follow: [https://www.eventbrite.com/o/new-york-city-social-events-10797526283](https://www.eventbrite.com/o/new-york-city-social-events-10797526283) Join: [https://www.meetup.com/NYC-Social/](https://www.meetup.com/NYC-Social/) Click: [https://dljparty.ticketleap.com/](https://dljparty.ticketleap.com/)

Come join us for brunch with a view of the Potomac

Semi in honor of March being International Women's Month Columbus libraries: [https://cml.bibliocommons.com/v2/record/S105C3454709](https://cml.bibliocommons.com/v2/record/S105C3454709) Location: SOW Plated Menu: [https://www.sowplated.com/menu-brunch/](https://www.sowplated.com/menu-brunch/) Book summary: In 2006 Julia Lerner is living in Moscow, a recent university graduate in computer science, when she's recruited by Russia's largest intelligence agency. By 2018 she's in Silicon Valley as COO of Tangerine, one of America's most famous technology companies. In between her executive management (make offers to promising startups, crush them and copy their features if they refuse); self promotion (check out her latest op-ed in the WSJ, on Work/Life Balance 2.0); and work in gender equality (transfer the most annoying females from her team), she funnels intelligence back to the motherland. But now Russia's asking for more, and Julia's getting nervous. Alice Lu is a first generation Chinese American whose parents are delighted she's working at Tangerine (such a successful company!). Too bad she's slogging away in the lower echelons, recently dumped, and now sharing her expensive two-bedroom apartment with her cousin Cheri, a perennial "founder's girlfriend". One afternoon, while performing a server check, Alice discovers some unusual activity, and now she's burdened with two powerful but distressing suspicions: Tangerine's privacy settings aren't as rigorous as the company claims they are, and the person abusing this loophole might be Julia Lerner herself. The closer Alice gets to Julia, the more Julia questions her own loyalties. Russia may have placed her in the Valley, but she's the one who built her career; isn't she entitled to protect the lifestyle she's earned?

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)

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

How do we recover from having had a toxic or narcissistic ex? How do we move on from the past, especially something as traumatic as a divorce or breakup? How do we avoid anxiety and depression? How do we have more self esteem? In this meeting, you will learn the mental health secrets to help you quickly get over the past and heal your mind. Be sure to click on the red "Attend" button below to come to this local event. We look forward to seeing you there. This group is created by the Dianetics & Scientology life improvement center.

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

Columbus Code & Coffee is an inclusive, informal co-working session. People of all skill levels attend, and we love it that way. Many people (optionally) bring projects to work on, and many other people (optionally) socialize the entire time. It's entirely up to you! **What to Expect at the Intro Circle** \~\~\~\~\~\~\~\~\~\~\~\~\~ Near the beginning of the event (1:30 pm), we do a standup: * Organizer announcements, updates, and logistics Round 1 - (7 secs max): * Your name * What you're working on * What you can help others with Round 2: * Community events you wanna plug. If none, that's cool too. Round 3: * Job opportunities you're hiring for OR announce that you are looking for one. If none, that's cool. After the introduction circle, everything is self-organized! Feel free to work alone, pair up, attend one of our workshops/presentations, or mingle!