Crash Course
Pan's Labyrinth: Crash Course Film Criticism
In 2006, a movie took on authoritarianism and the violent aftershocks of the Spanish Civil War—all through the eyes of an innocent young girl and the fairy tale world she discovers in the woods. Pan's Labyrinth is both a beautifully...
TED Talks
TED: The science of extreme weather -- and how to reduce the harm | Al Roker, Al Gore, David Biello and Latif Nasser
Floods, droughts, heat waves and cold blasts -- why is the weather becoming more extreme? Environmentalist and "America's weatherman" Al Roker discusses the link between climate change and disruptions to weather patterns worldwide,...
TED Talks
TED: 9 myths about psychology, debunked | Ben Ambridge
How much of what you think about psychology is actually wrong? In this whistle-stop tour of disproved ideas, Ben Ambridge shares nine popular ideas about psychology that have been proven wrong -- and uncovers a few surprising truths...
Bozeman Science
Contour Lines
In this video Paul Andersen explains how contour lines show areas of equal elevation or equal gravitational potential. Contour lines are used as an analogy for lines of equipotential in electric fields.
Bozeman Science
Object Interactions
In this video Paul Andersen explains how object interactions can add or remove mass or energy from a system.
TED Talks
TED: Goats, blockchain and the future of money | Fariel Salahuddin
What if smallholder farmers could use their produce and livestock to pay for goods and services? TED Fellow and alternative currency enthusiast Fariel Salahuddin is working to make this a reality in places including rural Pakistan, where...
TED Talks
TED: How radical hospitality can change the lives of the formerly incarcerated | Reuben Jonathan Miller
For the nearly 20 million Americans with a felony record, punishment doesn't end after their prison sentence. Sociologist Reuben Jonathan Miller sheds light on the aftershocks of mass incarceration through the stories of people who've...
TED Talks
TED: The incredible cancer-detecting potential of photoacoustic imaging | Lei Li
Could we use the energy from light and sound to detect disease? TED Fellow Lei Li shares the exciting promise of photoacoustic imaging: an affordable, painless and accurate method of converting light into sound in order to create...
TED Talks
TED: My wish: Protect our oceans | Sylvia Earle
Legendary ocean researcher Sylvia Earle shares astonishing images of the ocean -- and shocking stats about its rapid decline -- as she makes her TED Prize wish: that we will join her in protecting the vital blue heart of the planet.
TED Talks
How carbon capture networks could help curb climate change | Bas Sudmeijer
What if we could build a global waste disposal service for carbon? In this forward-thinking talk, carbon capture advisor Bas Sudmeijer proposes building CO2 networks: partnerships between cities around the world that would share the cost...
TED Talks
TED: Super speed, magnetic levitation and the vision behind the hyperloop | Josh Giegel
What if your hour-long commute was reduced to just minutes? That's the promise of the hyperloop: a transit system designed around a pod that zooms through a vacuum-sealed space (roughly the size of a subway tunnel) at hyper-speed,...
SciShow
The Glow of Life | Great Minds: Emmett Chappelle
Dr. Emmett Chappelle developed a test to find living microbes on other planets, and while it hasn't yet been used to find life amongst the stars, we've found many applications for it here on Earth
TED Talks
Nina Tandon: Could tissue engineering mean personalized medicine?
Each of our bodies is utterly unique, which is a lovely thought until it comes to treating an illness -- when every body reacts differently, often unpredictably, to standard treatment. Tissue engineer Nina Tandon talks about a possible...
TED Talks
TED: The bridge between suicide and life | Kevin Briggs
For many years Sergeant Kevin Briggs had a dark, unusual, at times strangely rewarding job: He patrolled the southern end of San Francisco’s Golden Gate Bridge, a popular site for suicide attempts. In a sobering, deeply personal talk...
TED Talks
Love, sorrow and the emotions that power climate action | Knut Ivar Bjørlykhaug
Picture your favorite place in nature. How would you feel if it disappeared tomorrow? In this love letter to the planet, social worker and environmental activist Knut Ivar Bjørlykhaug invites us to confront the deep, difficult emotions...
TED Talks
Tim Flannery: Can seaweed help curb global warming?
It's time for planetary-scale interventions to combat climate change -- and environmentalist Tim Flannery thinks seaweed can help. In a bold talk, he shares the epic carbon-capturing potential of seaweed, explaining how oceangoing...
TED Talks
Charles Moore: Seas of plastic
Capt. Charles Moore of the Algalita Marine Research Foundation first discovered the Great Pacific Garbage Patch -- an endless floating waste of plastic trash. Now he's drawing attention to the growing, choking problem of plastic debris...
TED Talks
TED: The radical potential of self-evolving robots | Emma Hart
What if robots could build and optimize themselves -- with little to no help from humans? Computer scientist Emma Hart is working on a new technology that could make "artificial evolution" possible. She explains how the three ingredients...
TED Talks
TED: Is humanity smart enough to survive itself? | Jeanette Winterson
With quick wit and sharp insight, writer Jeanette Winterson lays out a vision of the future where human and machine intelligence meld -- forming what she calls "alternative intelligence" -- and takes a philosophical look at our species,...
TED Talks
The Lady Lifers: A moving song from women in prison for life
The ten women in this chorus have all been sentenced to life in prison. They share a moving song about their experiences — one that reveals their hopes, regrets and fears. "I'm not an angel," sings one, "but I'm not the devil." Filmed at...
TED Talks
Jane Fonda: Why I protest for climate justice
At age 81, actor and activist Jane Fonda is putting herself on the line for the planet -- literally. In a video interview with TEDWomen curator Pat Mitchell, Fonda speaks about getting arrested multiple times during Fire Drill Fridays,...
SciShow
Hurricane Sandy FAQs
In the wake of Hurricane Sandy, Hank answers some frequently asked questions about it, and how it got to be so crazy. What is up with this storm? Has this ever happened before? This is global warming right?
TED Talks
TED: The sore problem of prosthetic limbs | David Sengeh
What drove David Sengeh to create a more comfortable prosthetic limb? He grew up in Sierra Leone, and too many of the people he loves are missing limbs after the brutal civil war there. When he noticed that people who had prosthetics...