Logic

Join PSW Science® on March 6 at 8 PM as we welcome Jonathan Coopersmith, Emeritus Professor of the History of Technology at Texas A&M University. During the question and answer period, in-person attendees and live stream viewers may ask the speaker questions, and in-person attendees may also engage with the speaker during the post-lecture reception. Refreshments are served. For more information on this meeting, please visit: https://pswscience.org/meeting/2532/ The meeting will be held in the John Wesley Powell Auditorium, adjacent to the Cosmos Club. The Powell Auditorium is located at 2170 Florida Avenue, NW Washington, DC 20008. Use of the Cosmos Club is restricted to the Powell Auditorium, the entryway to the auditorium, and the restrooms immediately outside the auditorium. Please note there is no onsite parking available. PSW Science, founded in 1871, is one of the oldest scientific societies in Washington D.C. Now, over 150 years later, we celebrate the Society's rich history and contributions to scientific discovery and cross-disciplinary collaboration. For information on how to become a member of PSW Science and membership benefits, please visit https://pswscience.org/join/

Socrates Café meets on the first Saturday of each month. Though this may be considered a "philosophical" group, there are no rules as to what is discussed. Usually, the topics revolve around social concerns, morality, and the first principles of things. Prior to each meeting we vote online for the questions we will discuss. That way, we will have enough time to ruminate on them and have more in-depth conversations. If you RSVP to a meeting, you may post your question in the event comments section below. I'll send out a survey for voting a few days prior to the meetup. We discuss two questions each night. So you will get to cast two votes in the survey. When we meet, we break into smaller groups of five to seven to discuss the top two vote-getters. Each group discusses one question for around 45-50 minutes, and we then take a short break. After reconvening, each group moves on to its second question. Hope to see you there! -Brian

Casual Commander and craft beer on the Red Line! We are the regular play group for NE DC! New folks are always welcome. Bring your favorite decks for some casual Commander, and feel free to bring a trade binder. Proxies are allowed. City-State Brewing Company is our accommodating host venue, and our location within the brewery may vary. We are often in the back room away from the noise of the crowd, but check for signs or ask at the bar for our location on the day if you don't readily see the group. I ask that you RSVP even if you're a regular so I can make sure we have the right number of tables for our group. First games start at 3 pm.

Magic The Gathering Booster Draft Prizes based on participation 15$ Entry Fee

## Details - Please read all below before you sign up **Cost:** Free **Court Type:** Outdoor Grass **Level:** B/BB/A **Transportation:** Parking will be right by the grass. **What to bring:** at least 3 bottles of water and a ball/net if you have one. **10 persons per net max** **Host's Philosophy on this event:** The purpose of this meetup is to create a fun and supportive environment where we can improve our skills, enjoy competitive games, and connect socially. While we do aim to play seriously and challenge ourselves, the focus is more on growth and enjoyment than simply winning at all costs. That’s why the title doesn’t include “competitive” or “social”—we want a healthy mix of both. This is a space where you won’t be judged for making mistakes, but we do expect a mindset geared toward learning and getting better over time. That said, this group isn’t intended for total beginners; a basic understanding of the game is expected so that everyone can contribute to meaningful and engaging matches. The host holds the right to remove you from the game if they believe that you are at a C level. **Skill Level:** 1. **If you want to know your level, please see the link below:** [Smiley Social Volleyball Levels](https://docs.google.com/document/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/edit) **YouTube:** The games may be recorded and uploaded to our channel here: Let the host know if you have an issue with this. [Youtube](https://www.youtube.com/@mp02626) **ATTENDANCE:** **Player Selection:** Regulars > League Members > Your Vibe > Skills > \*Your Attendance Ratio > New Members \* If you have 3 events attended and 6 events you dropped off, you may or may not be invited. Anyone with a drop-off level of -.50 or lower. The host takes attendance very seriously. Please remove yourself from the event (if you can't make it) as early as possible to allow others to join. You will be marked as a ***no-show*** if you don't show up to the event, including removing yourself 60 min or less before the event start time. [Smiley Social Rules](https://docs.google.com/document/d/1HrG35p_0M08leRvCp8XWG3CMkr_GL928XFabl5T6Dvg/edit) **Q&A** * Bringing your dog is welcome and encouraged. * *Can I come if I don't know how to play?* No, you may not. The host does teach a beginner's volleyball class that you may attend on Saturdays. * *Can I be late or leave early?* The host expects you to be there **on time** and leave on time. If you need to come late or leave early, please let the host know ahead of time. * *Can I come even if I am not on the going list?* No, sorry **Smiley Social documents:** 1. [Group Rules](https://docs.google.com/document/d/1HrG35p_0M08leRvCp8XWG3CMkr_GL928XFabl5T6Dvg) 2. [Liability Waiver](https://docs.google.com/document/d/1W2mq-7m99lmvd7gdWYaSUFtvVg4UGnzV6koafAbHmco) 3. [Volleyball Levels](https://docs.google.com/document/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/)

Title: What Is Space Density? From Medium Ontology to the Spacetime Constant K Date: March 8 2026 10:00 am - Noon EDT Abstract: Spacetime plays an active role in gravity, wave propagation, and quantum behavior, yet physics rarely treats it as a physical medium with intrinsic properties such as density or inertia. This missing layer creates a major conceptual gap—especially when interpreting large-scale gravitational anomalies that are often attributed to dark matter. In this talk, Lynn will propose a clear conceptual framework for what it means for spacetime itself to possess a density-like property, and Lynn will explain why Unified Field Theory (UFT) naturally encodes this property through the constant K, called the spacetime background inertial intensity constant. Lynn will introduce a space-density constant μₛ as a universal property of space itself—independent of matter, energy density, or gravitational sourcing. However, μₛ cannot be inserted directly into field equations, because it belongs to the ontological level: it describes what space is, not how spacetime responds. To influence dynamics, μₛ must be expressed geometrically. This leads naturally to K, which carries the same physical meaning but operates at the level required by geometric field dynamics. This is a change in representation—not the addition of new physics. This approach provides an alternative way to interpret dark-matter-like effects. Instead of requiring unseen particles, gravitational anomalies can be viewed as consequences of spacetime’s intrinsic rigidity and its global, cumulative response in large coherent systems such as disk galaxies. In local, weak-field environments, standard Newtonian and relativistic gravity remains an effective approximation. The goal of the talk is not to present a final empirical model, but to clarify the physical meaning of spacetime constants and open discussion between UFT and mainstream theoretical physics. Keywords: Spacetime ontology; space density; intrinsic spacetime properties; Unified Field Theory (UFT); spacetime background constant K; geometric response; gravitational coupling; dark-matter-like phenomena Brief Biography Lynn Lou Beran is a Senior IT Security Analyst and an author, translator, and editor working at the intersection of science, engineering, and communication. She translated and edited multiple editions of Zhang XiangQian’s Unified Field Theory and co-authored recent manuscripts developing a geometric, motion-based view of physical reality. Lynn’s broader work focuses on making advanced ideas accessible without sacrificing rigor, and on connecting conceptual insight to testable predictions and practical tools.

**Real connection with fellow Catholics who are eager to grow in Faith and friendship!** This 3 year--- 45min deep dive into the Catholic faith is a great way to spend your Sunday rest day. When you are ready to dig deeper and live the faith more fully this is an optimal opportunity. Talk yourself into this! You may start whenever and can come as often or as little as you desire. Coffee is served w/ small donation. It is taught by the priest and/or OCIA director at St Louis Parish who are ALL fabulous- faithful educators filled with theologically inspired knowledge. You can ask questions at the end, which I love. It is just a wonderful experience to grow. Afterwards if you wish, you can also find your way over to the Little Way Cafe Coffee shop across the parking lot to stay for more community time or read some of the excellent books that line the shelves throughout. If you are new to the community of Alexandria and want to meet like minded folks or a veteran of it, this is a special and unique opportunity and did I mention it is free? :) Hard to believe! Please join me every Sunday at 945 am.

Our Curanderimo Elder Ixtoii Paloma Cervantes will be traveling to Virginia and teaching this in person two day candle magic workshop where you will learn the traditional Curanderismo way of using candles for bringing blessings and healings. You will learn how to prepare them, how to use them to manifest what you want in life, how to see if they are working or not, and how to read them in the Curanderismo ways. Important Note: The purpose of this workshop is to enhance spiritual growth and well-being. Any misuse of the teachings will not be tolerated, and participants with hidden agendas or intent to harm others will be asked to leave without a refund. INFORMATION: Type of event: Spiritual Workshop. Who can participate: This workshop is open to everyone. You don't need to know anything at all. You need only an open heart to learn something new. This is a two day intensive in person workshop. We will email a list of what to bring and how to prepare for this workshop as soon as you book. Workshop Details: Dates: Saturday, March, 8 and Sunday, March 9 Time: 9:00 AM - 5:00 PM (Same start and finish time on both days) Tuition: $627 via cash or Zelle. Payment Plan available email healing@curanderasheart.com The full payment is due by February 27 How to book: Contact Curandera Jenny Perez at 703.531.7046

Our monthly magical writing workshop is appropriate for writers of all levels and types (poetry and prose). Join TaraTheBard in a guided discussion about magical writing practices, ancestral connection and creativity, seasonal writing practices, publication luck magic, putting craft into storycrafting, and more. Each session focuses on the theme of a tarot card. This inclusive workshop provides support to new and experienced writers, a thematic prompt, in-workshop writing time, and space to share ideas and results. Paper notebooks, laptops, and tablets encouraged. Bring your best writing tools, your favorite blanket, a cozy cup of tea, or whatever you need to connect with the spirits of writing. \*\*New attendees welcome!\*\* This month, we plan to create and enact a group spell, discuss the Wheel of Fortune and luck/fortune theme, and explore how that theme could appear in our writing. FOCUS: March's Magical Writing Workshop focuses on The Wheel of Fortune -- a major arcana card of the tarot. Please bring your favorite tarot deck's Wheel card (though you may also borrow a store deck if needed). Writing Review: February's Magical Writing Workshop focused on the Lovers card and its symbo;s. We will devote part of the time to discussing our Lovers writing.

**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?

Can humanity truly reach its full potential without all of its members being free to reach and contribute their all? Is equality a tug of war where one side gains at another’s expense? Does empowering women require taking opportunities away from men, or does it actually strengthen the whole and create more opportunities and a better world for everyone? If a bird has one broken wing, it isn’t able to fly or live a full and healthy life. Could this same thinking apply to the balance of men and women? The two wings of a bird do not fight for power, strength or dominance. Both wings need to be of equal strength for the bird to soar. Can humanity truly advance if women do not enjoy the same rights, prerogatives and opportunities as men? How can we work to ensure that we are building communities where everyone has the same opportunities to grow and develop and to contribute to the advancement of humanity together? Come join a different kind of conversation – one that welcomes every perspective in a search for the truths that unite us all – as we discuss the spiritual perspective offered by the Bahá’í Teachings on the essential equality of the sexes. Join us for a lively discussion as we explore how achieving that equality is needed for all of humanity to progress and reach its full potential. *“The world of humanity has two wings – one is women and the other men. Not until both wings are equally developed can the bird fly. Should one wing remain weak, flight is impossible. ”* – Bahá’í Teachings \*\*\* This event is free and open to all regardless of background or belief. Donations will not be accepted.

Window functions have nothing to do with the Windows operating system but provide a “window” to a result set when used in SQL queries. They are powerful, set-based methods to view data in unexpected ways. Window functions provide easy, set-based solutions to solve some common problems: * Using running totals * Performing operations in intervals * Identifying data gaps and islands * Performing aggregates without losing detail Many people are confused by window functions and do not know how to use them properly. This session will explore window functions, how they work, and how to use them. Demonstrations with several examples will solidify how window functions can simplify queries and make them more powerful.

Free at Bexley Library Adventures in Ecological Horticulture with Rebecca McMackin Wednesday, March 18 1:00pm - 2:30pm Gone are the days when a garden could be ornamental alone. We now recognize the impact that our land care practices have on the ecosystems around us, and can see the importance of encouraging biodiversity. Thankfully, we do not need to sacrifice beauty when we invite butterflies and songbirds into our gardens. Rebecca McMackin has cultivated gorgeous landscapes in the toughest environments possible: urban parks, school playgrounds, and the sidewalks of New York City. She will take lessons from her work at Brooklyn Bridge Park, the Brooklyn Museum, and decades of research to share how those of us who are fortunate enough to care for land, can do it beautifully and ecologically. Rebecca McMackin is an ecologically obsessed horticulturist and garden designer. She writes, lectures, and teaches on ecological landscape management and pollination ecology, as well as designs the rare public garden. She is currently Lead Horticulturist for the American Horticultural Society, an Associate with the Harvard Divinity School’s Thinking with Plants and Fungi Initiative, and Consulting Arboretum Curator for Woodlawn Cemetery in the Bronx, NY. Rebecca spent a decade as Director of Horticulture of Brooklyn Bridge Park, where she managed 85 acres of diverse parkland organically. Their research into cultivating urban biodiversity and ethical management strategies has influenced thousands of people and entire urban parks systems to adopt similar approaches. She has been published by and featured in the New York Times, Gardens Illustrated, on NPR and PBS. Her garden for the Brooklyn Museum recently won the PPA’s Award of Excellence and her TED Talk has been viewed over a million times. She holds M.Sc. from Columbia University and University of Victoria in landscape design and biology and recently completed the Loeb Fellowship at the Harvard Graduate School of Design. This program is presented in partnership with Rooted in Bexley and generously funded by the Bexley Community Foundation and Bexley Community Author Series Fund.

Sleep in on Sundays. When you've had your fill of pajama-time, roll out and have some tasty brunch with your fellow Humanists!

"Astrology: The Essential Basics" 5 classes with Judi Vitale, MA, C.A., NCGR-PAA Wed, Feb 11 | Zoom This course is an introduction to astrology for those who are interested in using this ancient art and science for their own illumination, and in preparing to offer astrology services to clients. About the event Astrology: The Essential Basics - Class Outline A 5-part course presented by Judi Vitale, MA, C.A. NCGR-PAA Wednesday 7:30 PM February 11 (#1) and 25 (#2), March 11 (#3) and 25 (#4), April 8 (#5). This course is an introduction to astrology for those who are interested in using this ancient art and science for their own illumination, and in preparing to offer astrology services to clients. It covers the very basic elements of astrology, including how astrology can be used and the ethics involved in working with clients. Written materials are provided, along with instruction on drawing the glyphs of the planets and signs. The Whole Signs House system will be used as the basis for this course. This system makes it easier for students to comprehend the meanings of elements, modalities, sect, and aspects. Each class is 90 minutes in length. Lesson #1: Astrology: A Historical Overview and Applications in the Modern World Lesson #2: The Zodiac, The Signs, and the Planets that Play in Them Lesson #3: The Ways the Planets Play (Planets in Signs) Lesson #4: The Houses and Aspects Lesson #5: Forecasting with Transits - Ethics and Technique After more than 40 years as a professional astrologer, speaker, and writer, Judi thrives on sharing what she has been given by her illustrious teachers. She earned her Level IV Certification from NCGR-PAA in 1995, She specializes in counseling clients using techniques ranging from traditional astrology to Uranian analysis. Judi holds a Master's degree in Transpersonal Counseling, and offers a coaching practice that emphasizes hypnotherapy and breathwork as well as astrology. She lives in Pittsburgh with her tiny dog Candace.

The Humanist Monthly Program is our longest running event and still a community favorite. In the old days it used to be called "Going to HCCO" and we still like to think of it as our flagship event. Food and drinks will be provided at the event. Feel free to show up a little bit early to hang out and talk. Our March speakers are Molly Gaines and Zack Parrish, co-organizers of the Secular Education Association: They will share their story of how a small group of Ohio parents grew into a national organization tracking released-time religious instruction and other church–state issues in public schools. The presentation will cover SEA’s early wins and hard lessons, what we’re seeing nationally right now, and how local advocates can play a meaningful role in protecting public education. Attendees will leave with a clearer understanding of the landscape — and practical ways to get involved. Going forward our meetings will be hybrid. You can meet us in-person or attend online Join Zoom Meeting [https://us02web.zoom.us/j/87836564953?pwd=4Mi57ElZkDIFlb1fnlNwOJ0NiOK4tP.1](https://us02web.zoom.us/j/87836564953?pwd=4Mi57ElZkDIFlb1fnlNwOJ0NiOK4tP.1) Meeting ID: 878 3656 4953 Passcode: 760812 One tap mobile +19292056099,,87836564953#,,,,\*760812# US (New York) +13017158592,,87836564953#,,,,\*760812# US (Washington DC) The formal presentation will start at noon

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: **Python Tips and Tricks on iOS** **Mike Kennedy** What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/

Come assist Van Buren Shelter (https://ymcacolumbus.org/locations/vanburen) staff in serving dinners and cleaning up on the 3rd Tuesday of each month. Dinner for the women is 5-6 pm and for the families is 6:15-7:15 pm. There is ample free parking available in the shelter's lot. The recommended area to park is in green in the image above. There will be a new entrance for the time being. We are asking all volunteers to enter through the Donation Dock door, the orange mark on the image above. This door is located between the Single Adults and Family Shelter. You will see 2 large garage doors with a large green trash compactor in the center. Please head to the closest garage door to the building wall, with a ramp leading up. There, you will see a door with a sign stating instructions on how to enter the building. Please ring the doorbell, and a staff member will come and escort you into the building. If a staff member takes longer than 5 minutes, please call the front desk at 614-689-2020. This is a new process for us, and we do not want to keep you waiting! We appreciate your patience as we navigate this temporary change. The shelter needs a volunteer count the day before the event so sign-up ends Monday at 4:50 PM. Afterwards some of us go to the Omnipresent Atheists Weekly Meetup in progress to have a bit to eat or drink (http://www.meetup.com/omnipresentatheists/). Volunteers must be 14 or older. Since we will be working around families, the YMCA does not permit volunteering by individuals with convictions for violent or sexual crimes. The YMCA reserves the right to run background checks on volunteers. For questions, comment on this page or contact: Andrew, awhit12@yahoo.com, (614)937-5802 (cell). Please let Andrew know if you volunteer anytime other than our COUNT events so that he can count your hours toward our service record.