Natural History

***Join us for an evening in an electronics lab where we will attempt to run clean scans of gold samples, and then clean up that data with post processing.*** This is a high sensitivity experiment, and we do not plan on being successful so early. But we've had promising results lately - so we will be putting in the time. We are NOT meeting at our usual location, but rather at Steve's house/lab. If you RSVP, you will get a DM with the address but it's located in Silver Spring. We will attempt full, clean lab - clean tip repeated scanning tests to see what we can learn and improve. We will experiment with online attendees, but if all possible showing up in person is strongly encouraged. Online join link is: - [https://meet.jit.si/mocomakers](https://meet.jit.si/mocomakers) 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. 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 will be publishing our work here -[ https://hackaday.io/project/202816-qt-panda](https://hackaday.io/project/202816-qt-panda) If you need a ride, let us know.

In March of 2026, the long-time staple of Kubernetes ingress controllers, ingress-nginx, will stop receiving security patches and regular updates. For many Kubernetes operators, this is a forcing function for us to migrate to a new solution that supports the newer Gateway API. The ecosystem of solutions in this space is large and complex, and operators find themselves weighing a myriad of options. In this talk, I hope to answer many questions that we have had to answer in this space, such as: * What are the advantages of Gateway API over the Ingress API? * Which Gateway API Solution should you use for different scenarios * Why not simply migrate to another ingress controller? * Where does the AWS Load Balancer Controller fit in this new ecosystem? * What does support for WAF, ALB, NLB, etc. look like going forward? **Timeline:** **6:00 PM** \- Doors Open\. Please be prepared to show ID that matches your registration\. **6:30 PM - 7:30 PM** \- Speaker **7:30 PM - 8:00 PM** \- Networking **8:00 PM** \- Event ends\. Conversation continues at Highline for anyone interested\.

Artistic Artifacts hosts **Open Stitch sessions EVERY Thursday evenings** from 5:30 - 7:30 pm — join us! This is a drop-in, bring your own hand stitching project and the necessary supplies (or you can knit, crochet... whatever needle arts you like). There’s no fee to attend, no instruction nor agenda — just a time to spend with other creatives! Visit our website for all our class & event information: **[https://artisticartifacts.com/collections/wk](https://artisticartifacts.com/collections/wk)**

Trivia!! Trivia starts promptly at 7, come earlier to get set up 630-645. Clear Sky's Meadery. 15201 Display Ct, Rockville, MD 20850

Does it feel like the world is ending? Stop doomscrolling and try some vigorous outdoor activity! We are NPS Weed Warriors and Arlington Regional Master Naturalists and you should volunteer with us on Sunday, March 15 to learn about nature and remove invasive plants from everyone's favorite urban island. Meet us at the entrance to the bridge (on the parking lot side, look for the sign) at 10:00 and bring your garden gloves and loppers/pruners if you have them. If not, we can provide gloves and tools. Wear long sleeves and pants and don't forget a water bottle. We will have tasks ranging from easy (cutting English ivy and honeysuckle vines from trees) to hard (sawing down bush honeysuckle). Parking at TRI can be tight if it's a pretty day. When the parking lot is full, you can park in Rosslyn and take the trail down. If you can bike or walk or take public transit, that's wonderful. We'll see you there! Erica, Stephanie, and Heidi P.S. If you can't wait until then to RIP (Remove Invasive Plants!), go here to find more volunteer opportunities in Arlington parks: [Volunteer to Restore Native Habitat – Arlington Regional Master Naturalists (armn.org)](https://armn.org/volunteer-opportunities/)

**National Women's Month Historical Hike** **Saturday\, March 14th \| 9am\-12pm** **Woodlawn Manor Cultural Park** \| 16501 Norwood Rd\. Sandy Springs\, MD 20860 **The Underground Railroad Experience Trail** \| 4 Mile Beginner Trail **$10 per person** \| All donations are tax deductible **Register at [www.Goombay.net](http://www.goombay.net/)** Honor the past. Empower the present. Inspire the future. Hike for history, health and community impact! In honor of National Women's History Month, the National Council of Negro Women-Potomac Valley Section is proud to partner with Goombay Adventures for an inspiring and energizing Historical Hike experience. Join us as we explore history, wellness, and trek along the powerful Underground Railroad Experience Trail while uplifting the legacy and contributions of women in our communities. **This is a rain or shine adventure.** This is more than a hike- it is a movement with purpose! **DISCLAIMER:** Ticket purchase confirms your voluntary participation and agreement to follow all park rules and safety guidelines set by NCNW-PVS and Goombay Adventure.

[Profs and Pints Metro Northern Virginia](https://www.profsandpints.com/washingtondc) presents: **“Celtic Mythology,”** an exploration of the beliefs of a people whose influence spread far beyond the British Isles, with Larissa “Kat” Tracy, past president of the American Society of Irish Medieval Studies, former editor of its journal, *Eolas*, and visiting assistant teaching professor of English at the University of Maryland Baltimore County. [Advance tickets: $13.50 plus sales tax and processing fees. Available at [https://events.ticketleap.com/tickets/profsandpints/nv-celtic-myths](https://events.ticketleap.com/tickets/profsandpints/nv-celtic-myths) . The Celts inhabited lands stretching from the British Isles to parts of France and the Holy Roman Empire. Their influence can be seen in the art of the Vikings, in the rich oral and literary traditions of the Irish, Welsh and Bretons, and in the modern renaissance of Celtic culture. But who exactly were they? Get into the minds of the Celtic people by learning about their myths and beliefs with Larissa “Kat” Tracy, a scholar of Old and Middle Irish and Middle Welsh language and literature and published translator of Old Irish texts whose dynamic and fascinating talks have earned a considerable following among Profs and Pints fans. Dr. Tracy will delve into early medieval literary records that tell stories of the Tuatha de Danann, a godlike people who invaded Ireland and then were defeated themselves. She’ll offer a new perspective on faeries, banshees, and leprechauns by describing how the ancient Otherworldy people once believed to inhabit the western realms of Ireland were diminished or demonized into figures of popular folklore. You’ll learn how the ancient God of the Sun become one of the “little people” guarding cauldrons of gold and bestowing luck, how immortal beings of majestic stature shrank to small, winged creatures in the back of gardens, and how supernatural women associated with the “people of the mound” became screaming harbingers of death. We’ll explore how medieval literary texts inspired later legends and became adapted into folklore. You’ll gain an understanding of how the medieval Catholic Church’s growing power led local people to reimagine their ancient gods and goddesses as Christian figures like Saint Bridget and Saint Patrick. You’ll gain an appreciation of how the Celts gave rise to living traditions that survive in modern popular culture through the preservation of languages, storytelling and music enjoyed all over the world, and renewed interest in goddesses like Brid and celebrations like Samhain. (Doors: $17, or $15 with a student ID. Listed time is for doors. Talk starts 30 minutes later.) Image: From “Riders of the Sidhe,” a 1911 John Duncan painting of the Tuatha Dé Danann.

We’ll do a circuit hike of 15.5 or 21.7 miles (you choose) along two of the prettiest Maryland suburban-DC stream valleys—**Northwest Branch** and **Sligo Creek**. The short version of the hike is difficult and the long version is difficult-er. We will proceed as a group for the first seven miles of both hikes, after which, you may hike at your own pace. This unusual, suburban wilderness hike will take you over natural-surface and paved trails, as well as a few stretches of sidewalk. The hike even includes some rock scrambling and sandy beaches, all with gentle elevation changes. Mud and/or ice on the trails have been known to occur. **[Photo albums](https://sites.google.com/view/wandering-soles/one-day-hike/training-hikes/nw-branchsligo-creek)** of previous versions of this hike. **MAPS & ROUTE NOTES:** See this **[folder](https://drive.google.com/drive/folders/13eoxioeq8uOAtpDM_TXJUqo2stk666pw?usp=sharing)** for hike handouts that include directions, route notes & maps, GPX files, and area information. You should download or print these, especially if you are unfamiliar with the routes. There are also Google Maps for the **[short](https://www.google.com/maps/d/edit?mid=15lpfn2zbNWAbn0xta7q6K09xcIJBnC13&usp=share_link)** and the **[long](https://www.google.com/maps/d/edit?mid=18SCpVfB2yLTiN9cJfqCgc4RH6E8ZNih-&usp=share_link)** hikes, to follow along on your phone's Google Maps app as you're walking. **WHEN & WHERE:** We’ll meet 8:30 AM at Wheaton Regional Park, in the parking lot in the lobby of the **[Ice Arena](https://bit.ly/4kvcRrB)**. Note that the park entrance for this location is at Orebaugh Avenue, off Arcola Avenue. Contact Mike (Mike.Darzi@Gmail.com) for a pick-up at a nearby Metro station. **WHAT TO BRING:** Bring food and drink (short hike, 2 qts; long hike, 3 qts); short hikers may also buy food along the way. You’ll proceed at your own pace and you may stop (or not) anytime to eat. This hike occurs rain or shine, cold or warm, so dress appropriately. However, in case of hazardous weather, please check here for last-minute changes before leaving for the hike. **LEADERS:** Mike Darzi (Mike.Darzi@Gmail.com) & Sean McCartney (SeanEMcCartney@Gmail.com) **SIERRA CLUB** You may join the Sierra Club by clicking the "JOIN" button at the top of the Virginia Chapter’s **[website](http://www.sierraclub.org/virginia)**. Membership is not required for participation. **ONE DAY HIKE** Although open to all, this training hike is part of a series of Saturday training hikes leading up to the **[One Day Hike](https://www.meetup.com/sierrapotomac/events/312467688/)** (ODH)—100 or 50 km along the C&O Canal—on May 2, 2026. See SCPRO’s **[Meetup page](https://www.meetup.com/sierrapotomac/)** for other training hikes as they are posted. If you would like to support the ODH, see **[volunteering opportunities](https://www.meetup.com/sierrapotomac/events/312467618/)** and/or contact Mike Darzi (Mike.Darzi@Gmail.com). For official updates regarding training hikes, registration, and other information, join the ODH discussion group by sending a blank email to OneDayHike+Subscribe@Groups.io

Info to Know: Admission: Free - A donation box for parking is $2 a day or $20 a year Dogs: Allowed on a Leash Bathrooms: In the Horticulture/Visitor Center Address: 4603 Green Spring Rd, Alexandria, VA 22312 Location: Lat, Long: 38.824471, -77.159254 = Witch Hazel Rd to park on side of the road if the gate to the parking lot is closed Plus Code: RRFR+Q7 Lincolnia, Virginia Website: https://www.fairfaxcounty.gov/parks/green-spring Types of Photography: Landscape, Close Up, and Birds Green Spring Gardens, which sits on 9.5 acres of land, celebrated its 50th anniversary in 2020! Even though the address on the website is 4603 Green Spring Road, Alexandria, Virginia, it is actually on a side street that has no parking or any viable access to their parking lot. The best way to access the Gardens parking lot is from Little River Turnpike, head north on Braddock Road, and turn right onto Witch Hazel Road. Since the Group’s field trips begin at 7:00 AM, but the Green Spring Gardens gate is not lifted until later, photographers park on the side of Witch Hazel Road and take a short walk to the park. Or, in the alternative, if Witch Hazel is full on the weekends, parking is available in the business parking lot next door. There are two main buildings at the Gardens. One is the Green Spring's Historic House, and the other is the Visitor Center. There is also a greenhouse attached to the visitor center with flowers and plants. The field trip here begins at the parking lot, where flowers and birds can be photographed. Next, the Group takes one of the paths towards the Historic House, where there are many different types of flowers, including bleeding hearts, and also where several butterflies congregate. Waterproof shoes can help your feet from getting wet on the grass. Continuing on this path past the Horticulture/Visitor Center that leads to individual gardens. At this juncture, another trail appears that takes you down a meandering hill and across a stream. The trail leads to two small ponds, one has lotus flowers and the other a gazebo. Stay on this path and head toward Green Spring Road. Make a left turn, to head back to the parking lot and Witch Hazel Road. At the end of this field trip, the Group typically has breakfast at JukeBox Diner, 7039 Columbia Pike, Annandale, VA 22003 (jukeboxdiner.com) Bring: Water, fully charged batteries, empty cards, tripod, comfortable shoes Share only your very best, most interesting shots after the field trip, and keep it down to between 5 and 10 photos. By sending in an RSVP and joining this meetup event hosted by the Virginia Beltway Photography Meetup, I am also agreeing to the terms of the following release and waiver of liability, which shall be binding on my heirs, executors, administrators, successors, and assigns. In consideration of my (and my child’s) participation in the Virginia Beltway Photography Meetup, I do hereby release, discharge, and hold harmless the Organizer, its members, officers, directors, employees, and the leader(s) of this event from any and all liability by reason of any damage, loss, expenses, or injury arising from my (and my child’s) participation in this event, including that caused solely or in part by the fault of any and all of the above-named parties.

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.

Hosted by Wild Ones Columbus How to Install a Bog Garden, with David Marsolo Saturday, March 14th, 2026 10:00 am to 12:00 pm (Eastern Time) Innis House (Inniswoods Metro Park) , 940 S. Hempstead Road, Westerville, OH Public Welcome Free Event Program/Speaker Presentation Wheelchair Accessible Public Restroom Free Public Parking A bog can serve the same functions as a traditional rain garden but has the advantages of being low maintenance, climate resilient and attractive for a much longer part of the year. David Marsolo is a long time Wild Ones member. He has been maintaining artificial bogs at his suburban Westerville home for about 20 years. He will describe how to install a bog and fill it with many interesting native plants including pollinator and host plants https://columbus.wildones.org/calendar-of-events-and-programs/?wo_event_id=11160

**The Listening Room — First Gathering** So much of life happens in loud spaces and quick conversations that never quite go beneath the surface. The Listening Room is meant to be the opposite of that — a quieter space where people can slow down, talk honestly, and actually listen to one another. For this first gathering, we’ll meet in a small group and explore a simple conversation prompt together. The goal isn’t debate or performance — just thoughtful conversation and the chance to connect with others in a genuine way. Our prompt for this gathering will be: **When have you felt truly seen or understood by another person?** Everyone will have the opportunity to share if they’d like, but there’s absolutely no pressure — listening is just as valuable as speaking here. We’re keeping the group intentionally small so the conversation can feel relaxed and natural. Looking forward to meeting you. — Benny

Discover Kiro, AWS’s innovative development environment that adapts to your workflow. Whether you prefer specification-driven development or a more intuitive, vibe-based approach, Kiro empowers you to build applications your way. In this session, speakers will explore Kiro’s core functionality and its evolution through re:Invent 2025, along with demonstrations of prompts used to create APIs, hooks, and steering documents. In the latter part of the session, watch as we build a complete example from scratch, showcasing Kiro’s agentic AI workflow in action for spec-driven development and vibe coding. What You'll Learn - Core Kiro concepts and development philosophy Feature evolution: pre and post re:Invent 2025 Practical examples: API creation, hooks, and steering docs Live coding demonstration with real-time problem solving Who Should Attend - Developers, solutions architects, and technical leaders interested in modern AWS development tools and AI-assisted coding workflows. **Speakers Bio:** Matthew Jorat: Matthew Jorat is a Customer Solutions Manager at AWS with nearly three decades of expertise in AI, cloud transformation, migration, modernization, IT, technology, and business. His career spans infrastructure engineer, solutions architect, security auditor, customer success director, support and services director, and operations officer. He was an early adopter of AWS services as a customer, and his current role at AWS uniquely blends his technical and business skills as he partners with executive teams to translate strategic priorities into measurable business outcomes through cloud adoption, AI implementation, and operational excellence. Matt leads end-to-end AI initiatives for enterprise customers, identifying high-impact use cases and maintaining relentless focus on measurable ROI. He holds eight AWS certifications and serves as Adjunct Professor at Franklin University teaching cloud computing and AWS architecture. His expertise encompasses GenAI, agentic AI systems, migration, modernization, and optimization strategies that drive transformation at scale. [https://www.linkedin.com/in/mattjorat/](https://www.linkedin.com/in/mattjorat/) Girish Bhatia: Girish Bhatia is a seasoned technology delivery leader with deep expertise in cross-domain program management. He holds multiple AWS certifications, including AWS Certified Solutions Architect – Associate, AWS Certified Developer – Associate, and AWS Generative AI Practitioner, and is also an AWS Community Builder. Girish brings over two decades of experience in the information technology industry. Throughout his career, Girish has led major technology-driven business transformation from modernizing on-premises applications to driving large-scale cloud migrations. His work includes API-based integration platforms, data-center and mainframe modernization, and enterprise cloud adoption initiatives. Based in Columbus, Ohio, Girish works at a tech-forward fintech company. He is passionate about AWS serverless architectures, Generative AI and emerging cloud technologies. An avid learner and builder, he continues to explore and apply the latest innovations in AWS to help organizations accelerate their digital transformation. https://www.linkedin.com/in/girishbhatia/[https://www.linkedin.com/in/girishbhatia/](https://www.linkedin.com/in/girishbhatia/) **THANK YOU** *Franklin University* for hosting our meetup! To learn more about *Franklin University*, please visit their website: https://www.franklin.edu/ **DIRECTIONS** Franklin University Fisher Hall 300 E. Main St, Columbus, OH 43215 Map: https://maps.app.goo.gl/jxjBA2hUmS5qrvhq8 Parking is FREE! Please park in Lot C in front of Fisher Hall. See attached map. NOTE: Map the address only. When mapping with Google Maps it may use the Fisher Hall at OSU, which is NOT correct. **Want to sponsor the pizza and/or bar tab?** Please contact me if you would like to sponsor this meetup's pizza and/or bar tab: angelo@mandato.com

The topic for March is "Our Bodies, Ourselves" Speak Easy: true stories, told live. The idea is simple: an audience, an open microphone, and great stories. Hilarious, gripping, poignant- it's up to you. Audiences are invited to come to listen or come to tell as folks from all corners of Columbus offer their stories live on stage! Held at Wild Goose Creative's warm, intimate space, this night of tales occurs on the 3rd Thursday of every month. Doors open at 6:30 pm, show starts at 7:00 pm. Please arrive early if you want to tell, as we generally only have room for a limited number of tellers, and the sign-up sheet has a tendency to fill up fast. Formed around the idea that people need stories--they're what hold and draw us together--SpeakEasy celebrates the strangeness and commonness of being human. And in a world of smartphones, Facebook, Twitter, and more . . . it gives people a real, breathing, in-person way to connect. The night is geared for true stories of all kinds, taking the best tales told around kitchen tables, in darkened pubs, on the street corner, and at late-night parties and giving them an audience. Speak Easy is also a great outlet for performers, writers, and artists looking to share their favorite stories and perfect their skills. We strongly encourage tellers to please tell the story rather than read it so we keep within the spirit of good storytelling and stay engaged with the audience. All are welcome. Hang around after the show for a drink and build community!

Let’s meet and discuss this fun but moving collection of wildly creative short stories. (Photo credit: TimesNowNews.com)

http://photos2.meetupstatic.com/photos/event/2/a/9/6/600_348310902.jpeg Instructor - Crow, HPS Class fee is $30 at the door or approved exchange RSVP with Advance pay of $25 (discounted) by PayPal on the web or by contacting Enchanted Elements (614) 437-2642. Reservations made directly to Enchanted Elements will be added to the class list manually not online. Private Instruction ~ Closed to the Public ~ Initiated Members Only Please come prepared for ritual. Blessings ~ Crow