Unschool

[Profs and Pints Northern Virginia](https://www.profsandpints.com/washingtondc) presents: **“Doom and Dinosaurs,”** a look at how mass extinctions shaped the dinosaurs and what research on these events tells us about Earth life’s long-term prospects, with Ian Wilenzik, paleontologist and visiting assistant professor of biology at George Washington University. [Advance tickets: $13.50 plus sales tax and processing fees. Available at [https://events.ticketleap.com/tickets/profsandpints/nv-dino-doom](https://events.ticketleap.com/tickets/profsandpints/nv-dino-doom) .] Pity the poor dinosaurs. They lacked both scientific research to help deal with potential environmental catastrophes and places where they could have a beer and discuss it. You, on the other hand, have the opportunity to come to Profs and Pints to hear a fascinating talk on the impact of mass extinctions on dinosaur evolution and what research on dinosaurs tells us about biodiversity and Earth’s current biodiversity crisis. Dr. Ian Wilenzik, who has studied and taught courses on dinosaur evolution, population spread, and extinction, will leave you with a greater appreciation of the resilience of life on earth and how we’re both the product and source of biologically catastrophic events. Many of us are familiar with how a big meteor impact about 66 million years ago wiped out the Earth’s dinosaur population, leaving us only with their feathered descendants, birds. Less well known is how the Earth actually has undergone five periods of mass extinction that wiped out nearly all life, and how dinosaurs arose from one and endured another—both caused by volcanic activity—before meeting their match in the third. To ground his discussion, Dr. Wilenzik will talk about how we study mass extinctions by looking for geologic evidence of volcanic activity, meteoric blasts, and other catastrophic activity and of gaps in the fossil record after them. He’ll also discuss what makes a dinosaur a dinosaur, describing their distinct anatomical features. He’ll talk about how they and other forms of life evolved over long periods of time and were affected by extinction events. We’ll look at how the meteor-caused mass extinction that wiped out dinosaurs at the end of the Cretaceous paved the way for the rise of mammals and the emergence of primates, and, eventually, us. Looking ahead to future mass extinctions and what might survive them, we’ll talk about how that plant you forget to water might have the last laugh, as well as why crocodiles might be around a while. (Doors: $17, or $15 with a student ID. Listed time is for doors. The talk starts 30 minutes later.) Image: A *Triceratops* mounted skeleton at the Los Angeles Museum of Natural History (Photo by Allie Caulfield / Wikimedia Commons).

We will be meeting at Starbucks to learn together. Come with an online class you're already going through or an interest and we will try to connect you with a course where you can learn it. Already have a skill you want to contribute to a Kaggle Datascience competition? We will work on these too! Laptop required :)

[Profs and Pints Northern Virginia](https://www.profsandpints.com/washingtondc) presents: **“The Twister Talk,”** on tornadoes and advances in our understanding of them, with Jeffrey Halverson, professor of geography and environmental systems at the University of Maryland Baltimore County and author of *An Introduction to Severe Storms and Hazardous Weather.* [Advance tickets: $13.50 plus sales tax and processing fees. Available at [https://events.ticketleap.com/tickets/profsandpints/nv-twister-talk](https://events.ticketleap.com/tickets/profsandpints/nv-twister-talk) .] Springtime brings tornado outbreaks and devastation across the United States. The good news for those of us who anxiously eye the skies: Tornado science is rapidly evolving and improving, as are the means by which we detect funnel clouds and warn of their approach. Get up to speed with what’s known about tornadoes with the help of Dr. Jeffery Halverson, a severe storm expert with the *Washington Post* Capital Weather Gang who previously has given excellent Profs and Pints talks on hurricanes and snowstorms. He’ll describe how, with the help of research conducted by tornado hunters, meteorologists are using ever more sophisticated computer simulations and datasets to try to “crack the code” when it comes to how and where tornadoes form. We’ll look at how science teams wielding Portable Doppler Radars on small trucks are learning that tornado wind speeds are much stronger than once presumed. We’ll consider how decades of data are changing how we think about “Tornado Alley,” and we’ll review what’s known about the relationship between tornadoes and climate change. Professor Halverson will conclude by discussing the technological strides being made in terms of tornado warning and detection, and how tornado scientists are teaming up with social scientists to gain a better understanding of what leaves us vulnerable to natural hazards. (Doors: $17, or $15 with a student ID. Listed time is for doors. The talk starts 30 minutes later.) Image: An F5 tornado over Elie, Manitoba in June 2007 (Photo by Justin Hobson / Wikimedia Commons).

Pitch your idea, get feedback, give feedback, meet with a mentor and most importantly, take action. Come to the meetup with a specific issue you are stuck with. **10:30 am Introductions:** 2-minute pitches tell us who you are? What you're working on? and what you need help with? **11:00 am Problem Solving:** Let's figure out how we can help, and what action you can take today to move forward. **12:00 pm** Open Networking: Keep the discussion going and connect with other attendees. Bring yourself, notebooks, laptops and anything else you need to pitch your idea and get work done. Interested in joining the Studio? [APPLY NOW](https://unstucklabs.com)

Members of the public are invited to view the wonders of the universe through the telescopes of NOVAC volunteers at the Smithsonian's Udvar-Hazy Center in Chantilly, VA. You do not need to be a member of the club or own any astronomical equipment to attend. Telescopes will be provided by the Smithsonian and pre-approved members of the NOVAC. No other personal telescopes are permitted at the event. The event will take place on the bus parking lot of the museum. **Please park your vehicle at the south end of the main visitors lot and follow signs and red lights to the observing site. As a reminder, parking during the event is free.** Have a cosmic question? One of NOVAC's astronomers or museum staff will be happy to help you. As the sky gets dark, be prepared to enjoy the wonders of the night sky! Don't forget to dress warmly. Please check the weather forecast. For lighting, cover a flashlight in red cellophane (the darker the better). Bring along water to keep hydrated. Note: This outdoor event is weather-dependent and may be cancelled because of significant cloud cover or precipitation.