Quantum Physics

Whether you’re coming solo or with friends, Divino is the perfect place to gather. Enjoy live music, handcrafted dishes, and a warm, social atmosphere. FREE PARKING GARAGE

[Profs and Pints DC](https://www.profsandpints.com/washingtondc) presents: **“Goddess of Spring and the Underworld,”** an introduction to the Greek goddess Persephone in her many incarnations, with Brittany Warman, former instructor at Ohio State University and co-founder of the Carterhaugh School of Folklore and the Fantastic. [Advance tickets: $13.50 plus sales tax and processing fees. Available at [https://events.ticketleap.com/tickets/profsandpints/spring-and-underworld](https://events.ticketleap.com/tickets/profsandpints/spring-and-underworld) .] Join Brittany Warman, who has earned a huge following among Profs and Pints fans by delivering fantastic talks on folklore, myths, legends, and fantasy, for the perfect event for the season: a look at the spring goddess Persephone and the many ways in which she has inspired the human imagination. The story of Hades and Persephone is one of the most famous—and most retold—episodes in Greek mythology. Persephone’s abduction, her interlude in the Underworld, and her partial return to the world above have inspired statues and webcomics, ancient cults and contemporary poetry. Thousands of years after her tale was first told, we’re still fascinated by this goddess. Brittany will discuss how Persephone’s appeal lies in her liminality in being caught between two very different worlds and lives. She represents spring, renewal, and rebirth because Earth blooms with her return, but she’s also the Queen of the Underworld. From a 21st-century perspective, she’s basically a goth girl adorned with a flower crown. We’ll also look at Persephone’s mythic roots, including their connections to the Eleusinian Mysteries. And then we’ll dive into some of the ways that Persephone has been revised and retold in recent years, from the Tony award-winning musical *Hadestown* to the webcomic *Lore Olympus* to memes and fairy tales and fashion. After all, why be just one thing when you can be the queen of both spring and darkness? (Doors: $17, or $15 with a student ID. Listed time is for doors. Talk starts 30 minutes later.) Image: From “Proserpine” (Persephone) painted by Dante Gabriel Rossetti in 1882. (Birmingham Museums Trust / Wikimedia Commons.)

**When**: Tuesdays, 6:00-9:00 pm **Where**: Pyramid Atlantic's Helen Frederick Gallery (2nd Floor) Pyramid Atlantic Art Center\* 4318 Gallatin Street, Hyattsville, MD 20781 Convenient cheap parking in several nearby municipal parking lots including the lot near Franklins. Only 0.50cents/hour until 8pm; please enter through the rear doors. **What**: Each Tuesday session begins with five 5-minute warm-up poses. We then draw from a sustained pose for the remainder of the session. Please bring your own art materials, paper and portable easel (if needed). Chairs and drawing boards provided. **Cost**: $20/session or $75/5-session punch card Walk-ins and late arrivals welcome, no experience necessary! **Etc**.: Age 18+ **Contact**: Milena- hyattsvillefiguredrawing@gmail.com \*Membership to Pyramid Atlantic, though not required, is enthusiastically encouraged! [Pyramid Atlantic Membership](https://pyramidatlanticartcenter.org/support/membership/) *We are not looking for new figure models at this time, no inquiries please. Thank you.*

ETA: I want to return to this cafe. Hopefully I’ll see you there. Great vibe here! The owner has a passion for cafe culture and it shows in everything they do here. Come out for some relaxed downtime. (No discussions on politics, religion or potentially controversial topics. We're here to relax and have fun. Just be respectful and we'll be alright. Pay your own way, and enjoy!)

Let us kick off with a stylish Happy Hour. We will have half-priced appetizers, glass of wine and rail drinks specials and special people from Maryland:) This is a joint meetup with my other meetups. You will get an opportunity to hang out with many insanely awesome socialites. Stonefish Grill is found in the Metro Points Mall, Unit J. METRO & PARKING INFO : Closest Metro Station is New Carrolton. From the station, it is approximately $ 10 cab ride. Please make sure you catch your cab on the West Side Taxi Hub on Ellin Road (take West Side Exit of the metro station). Check it on http://www.wmata.com/ and plan accordingly. Parking is free!

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.

All: We have reservations under Ross, My number is 301 467 3310 if you can’t find us. I I will have name tags for us. I will be there around 6:30, the band starts at 730. Address is: 15201 Shady Grove Rd #1, Rockville, MD 20850 Quantum Leap is the name of a professional 80s-tribute band from the Washington, D.C. area that performs dance, pop, rock, and R&B hits from that decade. The band is known for its high-energy performances and aims to keep crowds dancing all night by playing hits from artists like Michael Jackson, Madonna, Bon Jovi, and others

Improv Night at the Happy Treehouse with The Ripple Effect Improv Troupe Let’s be honest. Life gives us plenty of serious moments. This night is not one of them. Join us from 8:00 PM to 11:00 PM for a night of spontaneous comedy with The Ripple Effect, an improv troupe that travels around the DMV bringing laughter to places where people could use a little more joy. Hospitals, community events, gatherings like this one. Anywhere people need a good laugh, we show up and start a ripple. And once the laughter starts, it spreads fast. If you’ve never seen improv live before, you’re in for a treat. Nothing is scripted. No one knows what’s going to happen next, including us. The entire show is built in real time based on your suggestions from the audience. You might shout out a job. A location. A random object. And suddenly you’re watching a scene about a dog therapist with boundary issues or a married couple arguing about who forgot to charge the emotional support Roomba. That’s the magic of improv. Quick thinking, unexpected twists, and the kind of laughter that sneaks up on you. Why people love watching improv: *You laugh harder because you never see the joke coming. *You get to participate by shouting out ideas that shape the scene. *You watch performers build something hilarious out of thin air. And the whole audience ends up laughing together because everyone is experiencing something that has never happened before and will never happen again. You’ll definitely walk out feeling lighter than when you walked in. And along the way you might meet a few new people who also enjoy laughing. Because honestly… who doesn’t want funny friends? The vibe for the evening This is a relaxed BYOB potluck gathering under the pavilion. *Bring your favorite drink. *Bring a dish to share. *Bring a lawn chair if you have one. If you forget a chair, no problem. You can grab one of the chairs here, relax on the in-ground trampoline, or find a cozy spot around the pavilion. We’ll have the fire going, s’mores ready, and plenty of room to settle in and enjoy the show. Think backyard comedy club meets campfire hangout. Great people. Great laughs. A little silliness. And a ripple of joy spreading through the crowd. Come join us, Janine, your happy host Cell: 202-271-0922

Join the Bitcoin District Book Club! We meet every month to explore new and exciting rabbit holes by reading books that are popular with bitcoiners. Join us for a deep dive into End Times: Elites, Counter-Elites, and the Path of Political Disintegration by Peter Turchin. In this thought-provoking session, we’ll explore the structural forces that have historically led to societal instability—and why Turchin believes we are entering such a period today. Drawing on his work in “cliodynamics” (the quantitative study of history), Turchin examines cycles of rising inequality, elite overproduction, and political fragmentation. We’ll discuss how internal competition among elites and growing public discontent have repeatedly destabilized societies—from ancient Rome to modern America—and what this might mean for the decades ahead. For those interested in macro trends, power structures, and long-term societal patterns, this book offers a compelling framework for understanding today’s increasingly chaotic world. Buy the book on [Amazon](https://a.co/d/097mab73) **Event Notes:** * Discussion Starters: We’ll kick things off with a few key questions around elite dynamics and societal cycles, but feel free to bring your own perspectives. * Future Reads: Let us know if you have recommendations for future book club selections! We’ll add them to the list posted on our website. * Afterwards: Feel free to join us at Pubkey after the meeting to hang out, continue the conversation, and grab some food! **Getting There:** * 🔴🟢🟡 Gallery Place/Chinatown + 2 min walk * Parking: Street & garage parking available nearby

It’s been a while… but we’re back for Third Thursday 🎉 Join us on Thursday, April 16, 2026 for a fun evening of good vibes, great company, and a chance to reconnect! 📍 Sports & Social 1314 U St NW, Washington, DC 20009 🕕 6–9 PM Bring your friends, meet new faces, and let’s make it a night to remember. See you there! ✨ And yes, we will be having events on Third Thursdays of the remaining months in 2026! Save the dates!

​This meetup is for anyone building with OpenClaw (& Claude Code) or experimenting with other AI tools to create agents that can act and make decisions on their own. If you haven’t tried these yet, come hang out, ask questions, and see what others are building. We’ll trade notes, troubleshoot setups, and explore what it takes to run these systems openly on the web instead of inside closed platforms. Bring your laptop, grab some power, and jump into a night that feels part LAN party, part live build session, where people test ideas and show what their agents can actually do. 👉 [RSVP on LUMA](https://luma.com/53dx7no1) We’ll also have some fun by running a live test to see if a few of our agents can send Bitcoin back and forth and talk about why that’s a meaningful step for autonomous AI. It’s a chance to connect the dots between open AI tools, Bitcoin, and the wider goal of creating technology that no one can turn off. 👉 [RSVP on LUMA](https://luma.com/53dx7no1)

Let’s try this popular Italian restaurant in Reynoldsburg. This is the menu: https://scaliristorante.com/#4e468054-0235-43e2-81c2-44e061341e9e

Our next much-awaited **COLUMBUS** meetup is **Tuesday April 21 from 7-10 pm EST at ACE OF CUPS**. Meet patients, cultivators, processors, dispensary managers/staff, physicians, home growers, educators, activists, nonprofits, artists, attorneys, business owners, writers, students, and supporters to network, share our knowledge, collaborate, support each other and make new ones! Hope you will be there too! Save the date and pass the word. **Please RSVP** so we know who is coming and how many to expect. Find us to say hi and we will introduce you to others. We should be easy to spot. (The happy-looking group wearing cool nametags! See photos from our past events.) Sign in, grab a name tag, start your own bar/food tab, meet old friends and make new ones! Everyone is welcome. SEE YOU THERE!

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)

Start your week the right way with Manic Mondays. Giving you an enjoyable Bachata lesson with a push of cool moves. The second hour has Beginner/Intermediate Salsa on 1. You must understand basic Salsa skills to participate. 730pm-830pm Bachata Cool Moves 830pm-930pm Salsa On 1 (Beginner/Intermediate) $15 for One Class $20 for Both Free Parking & Plenty of Dance Space.

**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