TED Talks
Morley: "Women of Hope"
Inspired by Aung San Suu Kyi's call to action, "If you're feeling helpless, help someone," Morley composed this song. She sings it at TEDxWomen in her gorgeous, warm voice.
TED Talks
Yana Buhrer Tavanier: How to recover from activism burnout
When you're feeling burned out as an activist, what's the best way to bounce back? TED Senior Fellow Yana Buhrer Tavanier explores the power of "playtivism" -- the incorporation of play and creativity into movements for social change....
TED-Ed
TED-Ed: Why should you read Kurt Vonnegut? - Mia Nacamulli
Kurt Vonnegut found the tidy, satisfying arcs of many stories at odds with reality, and he set out to explore the ambiguity between good and bad fortune in his own novels. He tried to make sense of human behavior by studying the shapes...
Bozeman Science
Hydroelectric Power
In this video Paul Andersen explains how energy can be harnessed was water moves through a turbine. Three types of systems are discussed in the video; run-of-the-water, impoundment, and tidal. Several advantages and disadvantages of dams...
TED Talks
TED: The "greenhouse-in-a-box" empowering farmers in India | Sathya Raghu Mokkapati
For smallholder farmers in India, agriculture has long been an unreliable source of income -- crops that flourish one season can fail the next, thanks to heat, pests and disease. But climate risk is now making the profession nearly...
TED Talks
TED: Tracking the whole world's carbon emissions -- with satellites and AI | Gavin McCormick
What we know today about global greenhouse gas emissions is mostly self-reported by countries, and those numbers (sometimes tallied manually on paper!) are often inaccurate and prone to manipulation. If we really want to get serious...
TED Talks
TED: An artist's unflinching look at racial violence | Sanford Biggers
Conceptual artist and TED Fellow Sanford Biggers uses painting, sculpture, video and performance to spark challenging conversations about the history and trauma of black America. Join him as he details two compelling works and shares the...
TED Talks
TED: Every pollen grain has a story | Jonathan Drori
Pollen goes unnoticed by most of us, except when hay fever strikes. But microscopes reveal it comes in stunning colors and shapes -- and travels remarkably well. Jonathan Drori gives an up-close glimpse of these fascinating flecks of...
TED Talks
Sebastian Wernicke: Lies, damned lies and statistics (about TEDTalks)
In a brilliantly tongue-in-cheek analysis, Sebastian Wernicke turns the tools of statistical analysis on TEDTalks, to come up with a metric for creating "the optimum TEDTalk" based on user ratings. How do you rate it? "Jaw-dropping"?...
TED Talks
David Brooks: Should you live for your résumé ... or your eulogy?
Within each of us are two selves, suggests David Brooks in this meditative short talk: the self who craves success, who builds a résumé, and the self who seeks connection, community, love -- the values that make for a great eulogy....
TED Talks
TED: A photographic journey through the Taliban's takeover of Afghanistan | Kiana Hayeri
Exposing what life looks like in Afghanistan after a 20-year US occupation and the Taliban's stunning and rapid takeover, TED Fellow and documentary photographer Kiana Hayeri captures harrowing glimpses and multifaceted realities of a...
TED Talks
Noah Feldman: Politics and religion are technologies
Noah Feldman makes a searing case that both politics and religion -- whatever their differences -- are similar technologies, designed to efficiently connect and manage any group of people.
TED Talks
TED: This decade calls for Earthshots to repair our planet | Prince William
We start this new decade knowing that it is the most consequential period in history, says Prince William, The Duke of Cambridge. Inspired by President John F. Kennedy's "Moonshot," he calls on us all to rise to our greatest challenge...
Bozeman Science
Average Value of the Electric Field
In this video Paul Andersen explains how the average value of the electric field can be determined by dividing the potential difference by the displacement. Equipotential lines can be used to determine the potential in an electric field...
TED-Ed
TED-Ed: A day in the life of an ancient Peruvian shaman
The year is 1400 BCE. At the temple of the fisherman, the morning is unusually still and this is just the latest in a series of troubling signs for Quexo, the village shaman. The villagers live off the sea, but this year the winds have...
Bozeman Science
pH and Buffers
In this video Paul Andersen explains how buffer solutions maintain pH in a solution. A buffer solution is made up of a weak acid and its conjugate base. As strong acids or bases are added the pH remains stable. A good buffer solution has...
TED-Ed
TED-Ed: The last living members of an extinct species | Jan Stejskal
In the savannahs of Kenya, two female northern white rhinos, Nájin and Fatu, munch contentedly on grass. They are the last two known northern white rhinos left on Earth. Their species is functionally extinct— without a male, they can't...
TED Talks
Jill Shargaa: Please, please, people. Let's put the 'awe' back in 'awesome'
Which of the following is awesome: your lunch or the Great Pyramid of Giza? Comedian Jill Shargaa sounds a hilarious call for us to save the word "awesome" for things that truly inspire awe.
TED Talks
TED: How I went from child refugee to international model | Halima Aden
Halima Aden made history when she became the first hijab-wearing model on the cover of Vogue magazine. Now she returns to Kenya's Kakuma Refugee Camp -- where she was born and lived until the age of seven -- to share an inspiring message...
MinutePhysics
Why is Relativity Hard? | Special Relativity Chapter 1
Thanks to my friend Mark Rober for making the spacetime globe, and to Grant Sanderson (3blue1brown) for inspiration. This is the first in a series of videos about special relativity. This is definitely not an academic course, but it's...
Crash Course
Personal Identity: Crash Course Philosophy
Today Hank is building on last week’s exploration of identity to focus on personal identity. Does it in reside in your body? Is it in the collective memories of your consciousness? There are, of course, strengths and weaknesses to both...
TED Talks
TED: 3 questions to build resilience -- and change the world | Sister True Dedication
Every moment of movement is a chance to become more aware of yourself and the world around you, says Zen Buddhist nun Sister True Dedication. Guiding us through the art of "mindful walking," she shares three essential questions to ask...
TED Talks
Christina Warinner: Tracking ancient diseases using ... plaque
Imagine what we could learn about diseases by studying the history of human disease, from ancient hominids to the present. But how? TED Fellow Christina Warinner is an achaeological geneticist, and she's found a spectacular new tool --...
TED Talks
TED: Why it's too hard to start a business in Africa -- and how to change it | Magatte Wade
Many African countries are poor for a simple reason, says entrepreneur Magatte Wade: governments have created far too many obstacles to starting and running a business. In this passionate talk, Wade breaks down the challenges of doing...