Astrophysics

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

We are the Federal Center Toastmasters Club. We meet the 1st, 3rd, and 5th Thursday of each month in Hyattsville, MD, from 12 noon to 1pm. Our meetings are held at the headquarters of the CDC’s National Center for Health Statistics of the CDC. Our meetings are open to the public, though visitors must go through building security procedures. For visitors who are not U.S. citizens, we do need to pre-coordinate a first visit with our security team. Contact us at: 1260@toastmastersclubs.org. We have been a Toastmasters Club for 40 years and always welcome new members! Join us, and you will improve your public-speaking and leadership skills in a friendly, supportive atmosphere!

Back by popular demand, you're invited to our 3rd joint SPE-USAEE Happy Hour! Everyone had a great time at the event last fall, so we're bringing it back and changing venues! 🗓 **Date:** Thursday, February 19th 🕔 **Time:** 5:00 PM 📍 **Location:** [Mission Dupont, Washington DC](https://www.missiondupont.com/location/mission-dc/) (1606 20th Street NW) This is a great chance to meet fellow SPE members and connect with members of the National Capital Area Chapter of the US Association for Energy Economists (USAEE). 🍹 **Perks for Active Members:** Enjoy **a complimentary drink and hors d’oeuvres** on us! Whether you're new to the section or a long-time member, we’d love to see you there.

Check us out at http://6713.toastmastersclubs.org/ Email us at officers-6713@toastmastersclubs.org OR, call us at 703-967-1415 The meeting promptly starts at 12:00 PM. The agenda comprise of: • Pledge of Allegiance, • Toastmaster of the Evening leads the meeting, • Thought of the Day, • Joke of the Day, • Formal Speakers, • Table Topics, • General Evaluation & Evaluation of Speakers, • Timers Report, • Selection of Best Speaker, Table Topic, and Evaluator, • Adjourn

Please join members of the the Arlington Running Club each Thursday night at 6:30 PM for our weekly Run 'n' Quaff at Astro Beer Hall located at 4001 Campbell Avenue, Arlington Virginia 22206 in the Shirlington neighborhood of Arlington, Virginia. We are a laid back group of runners that enjoys running a 5-K (3.1 mile) course each week followed the quaffing of cold refreshing adult beverages. We have runners of all abilities from the beginning runner / walker up through marathoners and ultra runners. Our age group spans from early twenties through late seventies and all ages in between. There is someone your age range / someone your skill level at our weekly meetups. No check-ins, waiver forms, or administrivia. No rules, just right. Please join us each and every Thursday night, rain or shine, for the Arlington Running Club!

Come out and join our club at an easy location right in the center of the city!

[Link to purchase ticket(s)](https://sunscinema.com/2026-02-19) Tickets are very limited as the theatre is small! Join us on February 19th for a Black female director double feature of [Compensation (1999) by Zeinabu irene Davis](https://boxd.it/8jau) and [Losing Ground (1982) by Kathleen Collins](https://boxd.it/cDVy) at Suns Cinema in Mount Pleasant, D.C. This double feature (2 movies back to back) will be presented by Britt Sankofa as part of her monthly Black cinema series at Suns. / Compensation @ 7:00 PM sharp Losing Ground @ 9:40 PM sharp _It is highly recommended that you arrive at least 15 minutes before the feature_ / Attendance to both films is absolutely not required so feel free to pick whichever showing looks most intriguing to you! Drinks and popcorn available for purchase!

Join PSW Science® on February 20 at 8 PM as we welcome Karen Lloyd, Wrigley Chair in Environmental Studies Professor of Earth Sciences at the University of Southern California. 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/2531/ 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/

Shilohites Toastmasters meets every 2nd and 4th Sundays. Meetings start at 4:00 pm, and last one hour. We are a community club open to all. Parking is free. We focus on personal goals for professional development.

**Life** Blaise Pascal was born in 1623 in the Auvergne region of France. His father was an expert mathematician and member of the *noblesse de robe* (a designation for high-level bureaucrats). His mother died when Pascal was only three. Under his father’s anti-scholastic and modern approach, Pascal read widely but idiosyncratically in law, the Bible, Church Fathers, science, and, eventually, mathematics—but relatively little in literature. By his teens, his father had introduced Pascal to the group of intellectuals associated with Père Marin Mersenne. He suffered medical issues from a young age and throughout his life and was for some time under the care of one of his sisters. He was, for example, too ill personally to conduct his famous experiment on Puy-de-Dôme that provided evidence that air pressure differs at different elevations. He had a deeply mystical or religious experience (“Night of Fire”) on the evening of November 23, 1654, after which he renounced his mathematical and scientific pursuits in favor of religious pursuits. He had notes from the Night of Fire sown into his jacket. He died at only 39 in 1662. **Themes** While Pascal did not invent the triangle named for him (it had been known not only to Chinese, Indian, and Islamic scholars but also European ones), he studied it and showed some of its properties. In physics, he did experiments with mercury demonstrating that air pressure varied with elevation and studied hydraulics, giving us what is now called Pascal’s law. He was one of the first to devise a working calculating machine, several of which still exist, creating three versions for different uses. As might be expected from someone of such evident skill in math and science, he did not care much for Aristotelian approaches, such as essences, form, and matter. Pascal as philosopher presents some problems. In the first place, his non-scientific writings had the avowed purpose of promoting Christianity and, at times, Jansenism. His most famous work, *Pensées*, was not published in his lifetime but rather arranged by family and associates after his death based on written notes supposedly but not definitively intended for a work of Christian apologetics. But the psychological insights of the Pensées, and its clear and sharp style, have perhaps against his own wishes established Pascal as some sort of philosopher, if not a proto-(Christian) Existentialist. His attacks on the power and utility of reason are ironically almost coeval with the start of the European Enlightenment. Among his more famous ideas is that the heart has its reasons that the mind knows not of and discussing belief in God in terms of a wager. Is Pascal’s Wager a joke, taking to humorous extremes techniques of probability he had had a hand in developing? Or is he serious, aiming to show that reason fails when it comes to life’s most consequential decisions? Or is the Wager meant to offer reasoned support for a prior, non-rational embrace of God? We’ll discuss these and other questions to try to understand Pascal’s contributions to philosophy and what insights he can offer today. **Reading** Our readings for this month are *Pensées* and selections from *Discussion with Monsieur de Sacy*, the *Art of Persuasion,* and *Writings on Grace*. These can all be found in an edition from [Oxford University Press](https://global.oup.com/academic/product/penses-and-other-writings-9780199540365?cc=us&lang=en&). **Optional** * [Blasie Pascal, Internet Encyclopedia of Philosophy](https://iep.utm.edu/pascal-b/) * [Pascal's Wager, Stanford Encyclopedia of Philosophy](https://plato.stanford.edu/entries/pascal-wager/) * [Lettres Provinciales, Wikisource](https://en.wikisource.org/wiki/Lettres_Provinciales) * [Prayer, to Ask of God the Proper Use of Sickness, Wikisource](https://en.wikisource.org/wiki/Blaise_Pascal/Prayer,_to_Ask_of_God_the_Proper_Use_of_Sickness) **References for Pascal's Contributions to Math and Science** * [Pascal's Triangle: What It Is and How to Use It, Science Notes](https://sciencenotes.org/pascals-triangle/) * [Pascaline (Calculator), Wikipedia](https://en.wikipedia.org/wiki/Pascaline) * [Pascal's Law, Wikipedia](https://en.wikipedia.org/wiki/Pascal%27s_law) * [Pascal's Theorem (Geometry), Wikipedia](https://en.wikipedia.org/wiki/Pascal%27s_theorem)

Title: An Easy Intro to Feynman's Quantum ElectroDynamics (QED) Summary: One of the most delightful and informative physics books ever written is Richard Feynman’s QED. In this short book, Feynman undertook the daunting task of explaining his Nobel-Prize-winning theory, Quantum ElectroDynamics, without any math except in a few elaborating footnotes. Remarkably, he succeeds! In this talk, Terry replicates many of his arguments to show how you, too, can understand one of the most fundamental mechanisms of physical reality by using not much more than lots of tiny one-hand clock dials moving through space. Speaker: Terry Bollinger is a computer scientist Speaker: Terry Bollinger is a computer scientist with BS, MS and Professional degrees from the Missouri University of Science and Technology.

**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?

In a parallel world where everyone has an innate “frequency,” those with high frequencies are gifted, popular, and – most importantly – lucky. People in lower ranges have correspondingly less of these traits but more emotional depth. When someone with extremely high frequency is in close proximity to someone especially low, chaos ensues. A boy and girl at opposite extremes of the scale meet in elementary school and encounter each other repeatedly over many years. While the story seems at first to be a *Romeo and Juliet* variation in search of a happy ending, their universe has some secrets that will make the action weirder and more entertaining than anyone could expect. ■ Title — *Frequencies* ■ A.K.A. — *OXV: The Manual* ■ Director — Darren Paul Fisher ■ Cast — Daniel Fraser, Eleanor Wyld, Owen Pugh ■ Unrated, suitable for teens and adults ■ ©2013 \| 1h 49m \| Mystery\, Romance\, Sci\-Fi ■ Distributed by Samuel Goldwyn Films ■ Licensed for showing in Alexandria libraries by Swank Motion Pictures

This meeting will be an open discussion about the book "an Immense World" by Ed Yong

As you may or may not know--I didn't until late last year--Aristotle wrote extensively on "friendship" in the Nicomachean Ethics. After 69 years the concept of friendship still creates questions and uncertainty. I had close friends in high school and for a few years after high school but our interests diverged and people moved all over the country so it was hard to maintain connections. * So if I/you haven't talked with a friend for several years, are you still friends? Are we friends who meet at Drunken Philosophy or Omnipresent Atheists? * Can you be friends with someone with whom you have virulently divergent political views? Sartre and Camus could not. * Aristotle regarded friendship as essential to a good life, not merely an added "bonus." Do you agree? * In the Nicomachean Ethics (Books VIII and IX), he claims that wealth and power are meaningless without friends. Trump has wealth and power but seems to have no real friends, but wealth and power seem meaningful to him in perverted ways. Can you have meaning in your life without friends? * Do men and women view and maintain friendships in different ways? * Aristotle categorizes friendship into three types, based on what forms the bond: * **Utility**: Based on mutual benefit, but this type is fragile and ends when the usefulness ceases. * **Pleasure**: Based on shared enjoyment (e.g., humor, hobbies). Common among youth but fades as interests change. * **Virtue (The "Complete" Friendship)**: Based on mutual respect for each other's character and goodness. You wish good for the other for their sake, not yours. * **Key Principles of "True" (Virtuous) Friendship:** * **Permanence**: Virtuous friendships last a lifetime whereas those based on utility and pleasure are fleeting. * **Reciprocity**: Requires mutual goodwill; secret or unreciprocated affection does not qualify. * **The "Second Self"**: A true friend is "another self"—their virtue helps you understand and improve yourself. * **Time and Intimacy**: Deep ("complete") friendships are few, built on time and shared experiences. * **Self-Love and Friendship:** * Good friendship starts with being a friend to yourself. * They distinguish shallow egoism (chasing honors) from real self-love (pursuing virtue). * A virtuous person’s pleasant self-company allows them to be a stable, good friend to others. * Aristotle argues that one's social circle ultimately reflects one's character—a view with striking relevance today. Well--the Drunken Philosophy social circle certainly reflects good character!

**NEW LOCATION: 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). See the handy Parking Map - we recommend street parking. [Street Parking Map](https://docs.google.com/presentation/d/1u2A4fLNlxwLJn0KA_hKc8bnFlFHLvsHBDh-_8wzX_tk/edit?usp=sharing) 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 centralohpython@gmail.com

Optimistic Orators Toastmasters non-profit speech improvement group. No materials needed.

ASH is Atheists, Skeptics and Humanists of First Unitarian Universalists of Columbus Ohio TBD Snacks are usually available, and you are welcome to bringing something to share!

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. (NOTICE - Location change!) This session will be at the Karl Road Branch of the Columbus Library in the Conference Room 2.

Early-bird coffee and conversation at [Good Cafe](https://goodcafeeaston.com/)!