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Just Two Numbers Is All You Need

Smithsonian Astrophysical Observatory
Black holes sound wildly complicated. After all, there are all sorts of bizarre things going on: intense gravity, the warping of the fabric of space, the distortion of time itself. But when it comes to describing black holes, it comes down to just two numbers: the mass of the black hole and its spin.

How the Pacemaker Developed from an Everyday Radio

Smithsonian Channel
When Wilson Greatbatch invented the pacemaker, he was fulfilling a promise he'd made to God: keep him alive during WWII, and he'd dedicate his life to helping others. From: MY MILLION DOLLAR INVENTION: Life and Death

Sound– Lesson 6: Vibrations We Can't See

Smithsonian Science Education Center
"Quick Tips: Resources for Teachers” is a series of short videos providing down-to-earth advice and instructional tips to teachers of STC™, our signature science curriculum. Each “Quick Tip” offers practical suggestions by experienced teachers for handling materials or managing classrooms in science investigations.

Joe Macek, Chair "Introductory remarks"

Smithsonian Astrophysical Observatory
Joe Macek,( Tennessee), during FANO Memorial Symposium, "Resonances and Reflections: Profiles of Ugo Fano's Physics and Its Influences", held July 24, 2002 at The Institute for Theoretical, Atomic and Molecular and Optical Physics, Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts. © Harvard University and Joe Macek. The text and images on ITAMP's YouTube channel are intended for public access and educational use. This material is owned or held by the President and Fellows of Harvard College. It is being provided solely for the purpose of teaching or individual research or enrichment. Any other use, including commercial reuse, mounting on other systems, or other forms of redistribution requires permission. ITAMP is supported through grants by the National Science Foundation Any opinions, findings and conclusions or recommendations expressed in this material are those of the author(s)

Living Earth Festival 2018: Day 1 Panel Discussion

National Museum of the American Indian
The ninth annual Living Earth Festival focuses on sustainable development through heritage tourism, traditional agricultural practices, and the importance of Native foods and food sovereignty. The festival's first panel discussion is titled "Invitation to Indian Country: Tourism in Packerland and Indian Territory." Panelists Cheryl Trask (Cherokee Nation of Oklahoma), Gilbert Johnston (Quapaw Tribe of Oklahoma), and Kyle Wisneski (Oneida Nation of Wisconsin) talk about how their communities use tourism to educate visitors and provide tribal citizens, surrounding communities, and their states with a source of economic development. Camille Ferguson (Tlingit/Sitka), executive director of the American Indian Alaska Native Tourism Association, moderates the discussion. The panel discussion was webcast and recorded in the Potomac Atrium of the National Museum of the American Indian on July 20, 2018.

Power of Giving 2015 | Donation Ceremony: Objects Connected to Everyday Giving

National Museum of American History
On December 1, 2015, the National Museum of American History launched its Philanthropy Initiative with its first annual symposium, The Power of Giving: Philanthropy’s Impact on American Life. The program explored the past, present and future of philanthropy, broadly. Visit for more on this Power of Giving program, featuring Ricardo Amparo, Warren Buffett, Nina Easton, Bill and Melinda Gates, John L. Gray, Carla Hayden, Sarah Hemminger, Joseph T. Jones Jr., Nicholas D. Kristof, Jamie McDonald, Diana Morris, David Rockefeller Jr., David Rubenstein, Premal Shah, David J. Skorton, Henry Timms, Sheryl WuDunn, and Olivier Zunz.

17th-century Iron Cross Replica

National Museum of American History
When the Smithsonian’s National Museum of American History opens the new exhibition, “Religion in Early America,” in June 2017, included will be a 17th-century iron cross made by the first English Catholics to arrive in Maryland. It is on loan from Georgetown University. The Museum’s fabrication shop took on the challenge of creating a replica for Georgetown to display while the original is on view in The Nicholas F. and Eugenia Taubman Gallery. This time-lapse video shows the faux-finish work being completed on the wooden base. Iron cross from Georgetown University. Legend claims it was made of materials from the Ark and the Dove. Replica produced by the National Museum of American History. The vertical bar of the cross was inscribed with the words, “This cross is said to have been brought by the first settlers from England to St. Mary’s.” The crossbar, meanwhile, holds words in Latin that call for the perpetual remembrance of those first arrivals: “Ad perpetuam rei memoria” (For the eternal memory of the event). Faux-finish by Exhibits Specialist, Shawnie McRaney View the iron cross and other significant religious artifacts at the National Museum of American History’s “Religion in Early America” exhibition, opening June 28, 2017. For more information, please visit: Music written and performed by: Garrett Thompson

National Air and Space Museum Trophy Awards 2017

National Air and Space Museum
The National Air and Space Museum presents this trophy annually to recognize both past and present achievements involving the management or execution of a scientific or technological project, a distinguished career of service in air and space technology, or a significant contribution in chronicling the history of air and space technology.

AstrOlympics, Winter: Pressure (Short Promo Version)

Smithsonian Astrophysical Observatory
What do Olympic athletes and objects in space have in common? The answer is matter in motion, often in extreme examples. Whether it is a human body moving at the fastest speeds possible or the debris from an exploded star blasting through space, the physics of that motion is, in many ways, the same. The AstrOlympics project explores the spectacular range of science that we can find both in the impressive feats of the Olympic Games as well as cosmic phenomena throughout the Universe. By measuring the range of values for such things as speed, mass, time, pressure, rotation, distance, and more, we can learn not only about the world around us, but also about the Universe we all live in. Visit:

Is This Scene from Die Hard Really Possible?

Smithsonian Channel
The hallmark of every Die Hard movie is John McClane's ability to get out of the most dangerous situations with the minimum of effort - often using the most unlikely props. From: THE REAL STORY: Live Free or Die Hard

On the Crush Pad: Estimating crops

National Museum of American History
From "FOOD: Transforming the American Table 1950-2000"

Jill Wissmiller, Artist, Portrait Competition 2013

National Portrait Gallery
Interview with artist Jill Wissmiller, Portrait Competition 2013

The Crab Nebula in 60 Seconds

Smithsonian Astrophysical Observatory
In 1054 A.D., a star's death in the constellation Taurus was observed on Earth. Now, almost a thousand years later, a superdense neutron star left behind by the explosion is spewing out a blizzard of extremely high-energy particles into the expanding debris field known as the Crab Nebula.

Paul D'Amato, Commended Artist, Portrait Competition 2013

National Portrait Gallery
Interview with artist Paul D'Amato, Commended Artist, Portrait Competition 2013

JRA ​Craft Artists and Educators Panel

Smithsonian American Art Museum
The James Renwick Alliance presents a panel discussion with their 2014 Distinguished Educators, moderated by Elisabeth Agro, The Nancy M. McNeil Associate Curator of American Modern and Contemporary Crafts and Decorative Arts at the Philadelphia Museum of Art. Agro is joined by Dan Dailey, Massachusetts College of Art and Design, Emeritus; Peter Held, director, Arizona State University's Art Museum Ceramics Research Center; Glen Kaufman, University of Georgia and director, Cranbrook Academy of Art, Emeritus; and Patti Warashina, University of Washington, Emerita, for a discussion on materialism and the artists that focus primarily on their craft medium.

Teen Talks: Marcus Neustetter

National Museum of African Art
The Teen Ambassadors sat down for an engaging conversation with artist Marcus Neustetter.

​Why Do Sea Lions Bark?

Smithsonian Channel
If you're near a sea lion, chances are you'll hear its distinctive bark before you see it. Here, caretakers at Smithsonian's National Zoo explain why they make these sounds and what they're trying to say. From: WILD INSIDE THE NATIONAL ZOO: Sea Mammal Smarts

1960 French Alps Part 1

Human Studies Film Archives
1960—French Alps Part 1: Lake Geneva, Evian-les-Bains, Evian water, Boat Departing to Switzerland, Resort, Fishing, Swans-- SILENT FILM CLIP This film clip is from Thayer Soule's travelogue, "Footloose in France", archived in the Human Studies Film Archives, Smithsonian Institution. For more information, view the catalog record: For information on Thayer Soule see SIRIS blog post:

Giving Voice Program Curator James A. Robinson

Smithsonian Center for Folklife and Cultural Heritage
Catalog No. - CFV10229; Copyright - 2009 Smithsonian Institution

E0102 in 60 Seconds (High Definition)

Smithsonian Astrophysical Observatory
The supernova remnant known as E0102 was one of the targets that Chandra first observed after its launch in 1999.

Behind the Scenes with Project PHaEDRA Step 1

Smithsonian Institution
Want to learn more about how the Project Phaedra collections--including all the notebooks from the Women Glass Computers--from the Harvard-Smithsonian Center for Astrophysics get processed, cataloged, digitized, and ultimately imported into the Transcription Center for volunpeers to work on? Check out this video--the first in a new behind-the-scenes series- from Project Phaedra Staff. Want to learn more? email us anytime at

Meet the Team Doing Groundbreaking Evolutionary Research

Smithsonian Channel
To effectively gather data about native flycatchers, Solomon Islands-based biologist Albert Uy must rely on the help of local guides, as well as his own wife. They make quite a team. From: ISLANDS OF CREATION"

Vesta's Surface Comes Into View

National Air and Space Museum
This movie from NASA/JPL-Caltech/UCLA/MPS/DLR/IDA shows a dark feature near the equator of the giant asteroid Vesta moving from left to right across the field of view as Vesta rotates. It is roughly 100 kilometers (60 miles) in diameter. The 20 frames of the movie (repeated 5 times here) were obtained by NASA's Dawn spacecraft for navigation purposes on June 1, 2011.
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