Knime

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

Join us for our Thursday Tea Time and social hour for older LGBTQ+ adults! Bring your beverage of choice, and meet in-person at The DC Center from 1:00 – 3:00 pm. For more information, contact Center Aging Program Coordinator, Mac (maca@thedccenter.org). We hope to see you there!

***In Person Location:*** Rockville Library, second floor meeting room (Collaboration Room 3). 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

It is supposed to be 60 degrees Thursday. Let’s take advantage with a walk at Brookside Gardens. We will meet to the right facing the visitors center. If anyone is interested we can go to lunch afterwards.

Join the IBM Z Skills team at UMD College Park to **inspire** the next generation of technologists to pursue roles on the mainframe! \- IBM will deliver an overview presentation on IBM Z and the critical role the platform plays across industries today\. \- Help introduce students to IBM Z Xplore\, IBM’s premier online learning platform\, giving them a clear path to begin hands\-on skills development immediately\. \- Highlight the wide range of career opportunities available in the industry\, helping students see how their interests and strengths connect to real roles in the field\.

N2 Ventures invites you to an exclusive series of private, invite-only dinners bringing together a curated group of investors in emerging funds. These intimate evenings are designed to foster candid, off-the-record conversations among experienced allocators, operators, and partners exploring opportunities in high-growth sectors. Guests can expect thoughtful discussions around capital allocation into under-digitized, high-potential industries, private equity–style operating partnership models, and strategies for building scalable, high-performance companies. The evening will also provide insight into N2 Ventures’ investment approach, including its focus on operational excellence, disciplined capital deployment, and unit economics–driven value creation. Each dinner is intentionally small and highly curated to encourage meaningful dialogue, relationship building, and knowledge sharing among a focused group of investors and industry leaders. Topics may also include strategic exit planning, long-term founder–investor alignment, and perspectives on navigating evolving market opportunities. Hosted at premier venues, these dinners offer a relaxed yet sophisticated environment where guests can connect over exceptional cuisine while engaging in insightful conversations with peers and partners in the investment community. Location details will be shared with approved attendees prior to the event. Space is limited to maintain a curated and intimate environment. To inquire about attendance, please contact: [rsvp@fundsnmotion.com](mailto:rsvp@fundsnmotion.com) Sophia Akom [sophia@fundsnmotion.com](mailto:sophia@fundsnmotion.com)

This month, we'll have a recorded talk, followed by discussion, on API design and single-header libraries. How should we structure and program libraries to impose as few usage constraints as possible? We’ll look at [the STB libraries](https://github.com/nothings/stb) and other examples as case studies. We're still at the West End Library - see the location in the sidebar for details. **Agenda:** \- 2pm \- 3pm: Library discussion \- 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.

Blerdcon **screening room** Blerdcon March 6-8,2026 3:00 PM - 3:00 pm(48 hours) DC Anime Club will be hosting Blerdcon **screening room** Hyatt Regency Crystal City 2799 Richmond Hwy, Arlington, VA 22202 YOU MUST BE AN ATTENDEE of Blerdcon **screening room** to participate. [https://blerdcon.org/](https://blerdcon.org/) We will have a table at Blerdcon **as well.** During the screenings we ask that attendees please keep talking to a minimum and that all cell phones be put on vibrate and take phone conversations outside the screening room. Please keep the meeting room clean. please read the poster in front of the screening room if you want to know what is playing. This event is free and open to the public. We hope to see you there. For more information Contact the following [president@dcanimeclub.org](mailto:president@dcanimeclub.org) 202 262 2083

Speaker: Mattia Trottola, Abolish Fur Worldwide and the International Council for Anima Welfare Leading organizer of the animal rights movement in Europe, Mattia, will share insights from grassroots organizing across the region for fur and cage-free campaigns. He will discuss the ongoing work to get Milan Fashion week to go fur-feee and building growth and power in local communities across Europe. Join your fellow animal lovers and DC Animal Protection to discuss what’s happening in the animal advocacy scene in DC! This series is a weekly meetup, with guest speakers from all of the major animals rights orgs. We’ll host non-profits such as Pro-Animal Future, International Council for Animal Welfare, DC Voters for Animals, The Humane League, Mercy for Animals and Direct Action Everywhere as well as local grassroots groups like the DC Coalition Against Foie Gras and sanctuaries. We’ll also have special sessions related to health, nutrition and mindfulness! We encourage anyone who is interested in helping animals to attend- no need to be vegan! Come learn about our rich variety of local activism. With protests, outreach, wheat-pasting, signature collecting, leafletting, lobbying, tabling etc. there’s something to match everyone’s comfort level and skill set. Coffee, bagels and community will be provided! Feel free to bring any extra treats to share (no animal products please.) Hope to see you soon! :) Note: Unfortunately, animals are not allowed at our venue. Please leave your furry friends at home.

[Profs and Pints Northern Virginia](https://www.profsandpints.com/washingtondc) presents: **“Ireland’s Fight for Freedom,”** with Kevin Matthews, assistant professor of history at George Mason University and former London correspondent for Vatican Radio reporting on British and Irish news. [Advance tickets: $13.50 plus sales tax and processing fees. Available at [https://events.ticketleap.com/tickets/profsandpints/northern-virginia-ireland-freedom](https://events.ticketleap.com/tickets/profsandpints/northern-virginia-ireland-freedom) .] After centuries of struggle, Irish men and women won their freedom from Great Britain after waging a war that set the pattern for all other independence struggles of the 20th century. But there was a price—the partition of their country, a split setting the stage for the Northern Ireland “Troubles” that didn’t end until 1998. Gain a deeper understanding of Ireland and its history with Professor Kevin Matthews, a historian and frequent Smithsonian Associates speaker who had served as a journalist covering the last stages of the Troubles in Ireland in the early and mid 1990s. He’ll discuss in depth how the Irish won independence in a two-year war between 1919 and 1921, covering topics as the role women played in the conflict, the life and tactics of the revolutionary leader Michael Collins, and the Irish development of “urban guerilla warfare” using small, highly mobile armed units called “flying columns.” Most important, this talk will examine how the conflict between Irish nationalists and Irish unionists led to Ireland’s division and later conflict. From the Easter Rising to the Good Friday Agreement, from Bloody Sunday to Brexit, this conflict has never quite gone away. As the Irish poet, William Butler Yeats once wrote: Now and in time to be, Wherever green is worn, Are changed, changed utterly: A terrible beauty is born. Professor Matthews will explore how the Irish fought to a standstill what was then the mightiest empire in the world and how, more than he could have known, Yeats’ prediction still rings true today. (Doors: $17, or $15 with a student ID. Listed time is for doors. Talk starts 30 minutes later.) Image: Members of the Irish Republican Army’s West Connemara Flying Column in 1921. (Public Domain photo.)

**The MOOTS Routt 45 Demo Experience:** *A Full Size Run (50cm–60cm)* One bike for any occasion. Every size for our riders. **We are stoked to announce a special collaboration with our MOOTS factory representative for an exclusive demo day at Handy Bikes Retail Showroom.** We aren't just bringing a couple of bikes; we’ll have an entire size run of the legendary Routt 45 ready for you to throw a leg over. **The Bike: The Routt 45** **The Routt 45 is the "do-everything" titanium gravel machine**, named after the unpredictable mix of surfaces found on Routt County Road 45 in Steamboat Springs. Whether it’s forest tracks, chunky gravel, or the trails where the maps end, this bike is built to handle it all with: **-Modern Gravel Geometry:** *A longer top tube paired with a shorter stem for stability and precision.* **-All-Day Comfort:** *A relaxed, upright posture that lets you stay in the saddle longer.* **-Massive Clearance:** *Room for up to 50c-wide tires to soak up the chatter.* **-Ti-Flexibility:** *Compatible with both 1x and 2x drivetrains and featuring discreet fender eyelets.* **Find Your Perfect Fit** Titanium is a lifetime investment, and getting the fit right is the first step. Our rep will be on-site to help you dial in your setup across the full range: *Available Sizes: 50cm \| 52cm \| 54cm \| 56cm \| 58cm \| 60cm* **Don't Just Read the Reviews—*Ride the Legend*** It’s rare to see a full size run of MOOTS in one place, let alone get to take them for a ride. This is a unique opportunity to skip the 'parking lot test' and actually feel how handcrafted US-made titanium handles. Whether you're dreaming of your *'forever bike'* or just want to see what the hype is about, this is the day to do it.

Put a spring in your step and march into spring with your fellow autistics at Cleveland Park Library! Conveniently located at 3310 Connecticut Ave. NW just blocks from Cleveland Park Metro on the Red Line in Washington, DC, the library is in the safe and walkable Cleveland Park neighborhood. We will meet in Meeting Room 1, which is located on the first floor of the library. Food is prohibited, but covered drinks are permitted. I will be bringing my UNO card game and PowerPuff Girls board game. Feel free to bring games if you like, but it's not required. We typically go out to lunch afterwards at Fat Pete's, a BBQ place which also has salads, pizza, and other non-BBQ options. PJ, the owner, has personally told me to call him and let him know when we're coming so he can sit us in a sensory-friendly space. If PJ says the place is too noisy, there are many other restaurants in Cleveland Park. Fat Pete's is located at 3407 Connecticut Ave. NW in Washington, DC, just across the street and a block away from the library. If you're running late or get lost, please call or text me at 202-802-3238.

Meeting Room 2b, Main Library Join us for a welcoming evening of reflection, gentle music, and meaningful conversation. We’ll begin with a short grounding moment, followed by a brief reading from spiritual or philosophical traditions, and an open reflection circle where participants can share (or simply listen). Libera Animae is an interfaith community focused on inner growth, creativity, and authentic connection. We desirere to cultivate a space where all questions are welcome and all members are treated with compassion and respect. All backgrounds are welcome.

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.

**Our March pick is *God of the Woods* by Liz Moore.** **This month’s novel is an award-winning literary mystery that blends family drama with psychological suspense. It explores women’s voices and relationships while delivering an exciting, eerie, and deeply suspenseful story. The book is 576 pages in print or 14 hours and 35 minutes on audiobook.** Early morning, August 1975: a camp counselor discovers an empty bunk. Its occupant, Barbara Van Laar, has gone missing. Barbara isn’t just any thirteen-year-old: she’s the daughter of the family that owns the summer camp and employs most of the region’s residents. And this isn’t the first time a Van Laar child has disappeared. Barbara’s older brother similarly vanished fourteen years ago, never to be found. As a panicked search begins, a thrilling drama unfolds. Chasing down the layered secrets of the Van Laar family and the blue-collar community working in its shadow, Moore’s multi-threaded story invites readers into a rich and gripping dynasty of secrets and second chances. It is Liz Moore’s most ambitious and wide-reaching novel yet.

**💖 Virtual Speed Dating for Beginners – Meet Toledo Singles Stress-Free!** **⚠️ IMPORTANT: Your RSVP Does NOT Guarantee a Spot!** To secure your place, you **must** register and complete the personality quiz by clicking one of the age group links below. Select your age range, click to register, and complete the quiz. **Spots are limited** – don't wait! **🎟️ Age Group Registration Links (Click Yours Now):** - **Ages 18-32** → [REGISTER HERE](https://tempodating.com/product?productId=369.0&productType=onlineSpeedDating&city=Toledo&groupurlname=serene-lake-love-mirror&ar=18-32&face_v=4.0) - **Ages 30-46** → [REGISTER HERE](https://tempodating.com/product?productId=369.0&productType=onlineSpeedDating&city=Toledo&groupurlname=serene-lake-love-mirror&ar=30-46&face_v=4.0) - **Ages 40-58** → [REGISTER HERE](https://tempodating.com/product?productId=369.0&productType=onlineSpeedDating&city=Toledo&groupurlname=serene-lake-love-mirror&ar=40-58&face_v=4.0) - **Ages 55+** → [REGISTER HERE](https://tempodating.com/product?productId=369.0&productType=onlineSpeedDating&city=Toledo&groupurlname=serene-lake-love-mirror&ar=55+&face_v=4.0) --- 🎉 **Ready to try something new from the comfort of home?** Let's go! We've helped thousands of first-timers discover the joy of speed dating from home. Short, fun conversations with compatible singles – it's easier than you think and more rewarding than any dating app. 🎯 **Perfect for:** - First-time speed daters ready to try something new - Curious first-timers wanting to explore speed dating - Singles who prefer a safe, comfortable online environment - First-timers wanting a low-pressure, guided experience **Event Details** - **Format:** Virtual via Zoom – structured rounds in a warm, friendly setting - **Location:** Your cozy space – meet from wherever you feel most comfortable - **Host:** Engaging guide creating a welcoming, pressure-free space for beginners - **Vibe:** Fun, guided conversations that make meeting Toledo singles effortless - **Dress code:** Smart casual – look good, feel good! - **Support:** Our host is available before, during, and after the event - **Duration:** A perfectly paced 60–90 minute event with multiple rounds **How It Works** 1. **Pick Your Session** – Select the age group that fits you and register your spot. 2. **Finish the Short Personality Assessment** – This helps us optimise your matches for the evening. 3. **Hop on Zoom** – Your host will welcome you and walk you through everything. 4. **Meet Your Matches** – Rotate through fun one-on-one rounds with Toledo singles who share your vibe. 5. **Your Results** – Check your matches and take the next step with someone special. 💡 **Insider tip:** Test your Zoom setup 10 minutes early so you feel calm and ready. --- ✨ No need to be anxious about meeting in person – find real connections from your own space! Your person is waiting! 🥰 ✨

**Google Analytics Alternatives** Is it finally time to make the switch away from Google Analytics? Two-and-a-half years ago Jason Packer asked this question at Columbus Web Analytics Wednesday. Since then: Google’s Universal Analytics has been sunset, we’ve changed our name to Columbus Data & Analytics Wednesday, and Jason has released two editions of his book “Google Analytics Alternatives”. Fresh off the release of the 2nd edition of his book, we thought it was time to re-open this conversation. While people love to complain about it, GA’s market share has remained relatively constant (at least in the United States). Why is that? You won’t find any complaints about GA4 in this talk, but rather an overview of what’s currently available in the market and how to frame your decision-making process. We’ll also be giving out some free copies of Jason’s book! So even if you’ve got a “GA4Lyfe” tattoo (no judgement), there’s free books to go with the free pizza and beer. Thanks to our 2026 sponsors: [Clarivoy](https://www.clarivoy.com), [What Box Consulting Group](https://www.whatboxconsultinggroup.com), [Conductrics](https://www.conductrics.com), and [Piwik PRO](https://piwik.pro) More info at [cbusdaw.com](https://cbusdaw.com)

**💝 Meet Local Singles Online – Speed Dating Made Easy for First Timers!** **⚠️ RSVP ≠ Registration!** Your Meetup RSVP alone does **not** secure a spot. You must click your age group link below, complete registration, and finish the personality quiz. **Spots are limited** and fill fast! **🎟️ Age Group Registration Links (Click Yours Now):** - **Ages 18-32** → [REGISTER HERE](https://tempodating.com/product?productId=369.0&productType=onlineSpeedDating&city=Columbus&groupurlname=serene-lake-love-mirror&ar=18-32&face_v=4.0) - **Ages 30-46** → [REGISTER HERE](https://tempodating.com/product?productId=369.0&productType=onlineSpeedDating&city=Columbus&groupurlname=serene-lake-love-mirror&ar=30-46&face_v=4.0) - **Ages 40-58** → [REGISTER HERE](https://tempodating.com/product?productId=369.0&productType=onlineSpeedDating&city=Columbus&groupurlname=serene-lake-love-mirror&ar=40-58&face_v=4.0) - **Ages 55+** → [REGISTER HERE](https://tempodating.com/product?productId=369.0&productType=onlineSpeedDating&city=Columbus&groupurlname=serene-lake-love-mirror&ar=55+&face_v=4.0) --- 💡 **Curious about speed dating but nervous?** We've got you! We've helped thousands of first-timers discover the joy of speed dating from home. Short, fun conversations with compatible singles – it's easier than you think and more rewarding than any dating app. 🎯 **Perfect for:** - Shy or reserved singles who open up better in private chats - First-timers who want a safe space to practice dating skills - Anyone who's tired of swiping and wants real conversation **How It Works** 1. **Sign Up** – Click the registration link for your age bracket above. 2. **Finish the Short Personality Assessment** – This helps us optimise your matches for the evening. 3. **Log In & Relax** – Join the Zoom call and let the fun begin. Your host handles the logistics! 4. **The Fun Part** – Rotate through rounds of lively chats with pre-matched Columbus singles. 5. **Your Results** – Check your matches and take the next step with someone special. **Event Details** - **Format:** Zoom meetup – real-time conversations in a relaxed online space - **Location:** Anywhere with Wi-Fi – your couch, your café, your call - **Host:** Your personal guide through the evening – friendly, encouraging, and fun - **Vibe:** Warm, genuine conversations with Columbus locals who are looking for real connection - **Matches:** Mutual matches revealed after the event - **Icebreakers:** Fun prompts provided to keep conversations flowing - **Atmosphere:** Positive, inclusive, and judgement-free - **Accessibility:** Join from any device – laptop, tablet, or phone ⭐ *"10/10 would do again. The host was amazing and I actually had fun dating!"* – Columbus first-timer --- ✨ You deserve to meet someone amazing – and you can do it from home. We'll see you on Zoom! ❤️‍🔥 ✨