PBS
What Do Stars Sound Like?
We can now map the interiors of stars by "listening" to their harmonies as they vibrate with seismic waves.
TED Talks
TED: 3 ways to lower the barriers to higher education | Adrian K. Haugabrook
Less than seven percent of people worldwide have a bachelor's degree -- and for many, this is simply because the cost of university is too high, says higher education executive Adrian K. Haugabrook. In this barrier-breaking talk, he...
SciShow
Do Animals Cry?
Plenty of animals have tears that moisturize their eyes. But does that mean they're sad? Quick Questions explains!
SciShow
Weird Places: Mauritania's Eye of the Sahara
Explore the origins of one of the coolest geologic formations in the world, West Africa's Richat Structure.
Crash Course Kids
Up, Up & Away
So... what makes the wind? You might be surprised to learn that it has to do with two of Earth's spheres; The Hydrosphere and the Geosphere. In this episode of Crash Course Kids, Sabrina takes us to the beach to chat about how the wind...
SciShow
Why You Have That Little, Lying Voice in Your Head
If you feel something inside you say, “I really don’t think you’re strong enough,” you don’t necessarily have to trust that little voice—it might not know you as well as you think it does.
TED Talks
Ellen 't Hoen: Pool medical patents, save lives
Patenting a new drug helps finance its immense cost to develop -- but that same patent can put advanced treatments out of reach for sick people in developing nations, at deadly cost. Ellen 't Hoen talks about an elegant, working solution...
Crash Course
Scientific Revolution: Crash Course European History
There was a lot of bad stuff going on in Europe in the 17th century. We've seen wars, plagues, and unrest of all types. But, there is some good news. Huge advances were underway in the scientific community in Europe at this time. In this...
SciShow
The Sound of Your GPA Slipping Away
Researchers have noticed some trends in the relationship between academic performance and noise. Spoiler alert: it doesn’t sound good.
TED Talks
Tara Houska: The Standing Rock resistance and our fight for indigenous rights
Still invisible and often an afterthought, indigenous peoples are uniting to protect the world's water, lands and history -- while trying to heal from genocide and ongoing inequality. Tribal attorney and Couchiching First Nation citizen...
TED Talks
William Black: How to rob a bank (from the inside, that is)
William Black is a former bank regulator who’s seen firsthand how banking systems can be used to commit fraud — and how “liar's loans” and other tricky tactics led to the 2008 US banking crisis that threatened the international economy....
TED-Ed
TED-Ed: How do pregnancy tests work? - Tien Nguyen
Over-the-counter pregnancy tests give potentially life-changing results with a pretty high rate of accuracy. But how do they work? Tien Nguyen explains how each test performs a scientifically rigorous, multi-stage experiment that goes...
Crash Course
The Raft, the River, and The Weird Ending of Huckleberry Finn: Crash Course Literature 303
This week, we're continuing our discussion of Mark Twain's 'The Adventures of Huckleberry Finn.' This is part two of our talk about Huck Finn, and this time we're looking at the metaphors in the book, a little bit about what the...
TED Talks
Bjarke Ingels: Floating cities, the LEGO House and other architectural forms of the future
Design gives form to the future, says architect Bjarke Ingels. In this worldwide tour of his team's projects, journey to a waste-to-energy power plant (that doubles as an alpine ski slope) and the LEGO Home of the Brick in Denmark -- and...
TED Talks
TED: The creativity and community behind fanfiction | Cecilia Aragon
The wildly diverse, thoughtful and hilarious world of fanfiction -- where writers reimagine favorite stories like "Harry Potter," "Pokémon," "My Little Pony" and more -- is ever-growing and becoming a vital social and learning tool....
Curated Video
Alexander the Great and the Situation ... the Great? Crash Course World History
In which you are introduced to the life and accomplishments of Alexander the Great, his empire, his horse Bucephalus, the empires that came after him, and the idea of Greatness. Is greatness a question of accomplishment, of impact, or...
TED Talks
Deepa Narayan: 7 beliefs that can silence women -- and how to unlearn them
In India (and many other countries), girls and women still find themselves silenced by traditional rules of politeness and restraint, says social scientist Deepa Narayan. In this frank talk, she identifies seven deeply entrenched norms...
TED Talks
Lee Mokobe: A powerful poem about what it feels like to be transgender
"I was the mystery of an anatomy, a question asked but not answered," says poet Lee Mokobe, a TED Fellow, in this gripping and poetic exploration of identity and transition. It's a thoughtful reflection on bodies, and the meanings poured...
TED-Ed
TED-ED: How many verb tenses are there in English? - Anna Ananichuk
How many different verb tenses are there in a language like English? At first, the answer seems obvious - there's past, present, and future. But it isn't quite that simple. Anna Ananichuk explains how thanks to something called...
SciShow
How Do People Develop a Stutter?
Kings, scientists, and musicians alike have all been known to stutter. It can make speaking in front of crowds even more nerve-wracking, but is anxiety the root cause? Spoiler: probably not.
SciShow
The Surprising Benefits of Watching Cute Cat Videos
If you are feeling stuck, you might get benefits to be better at the task by watching cute animal videos.
TED-Ed
TED-Ed: History vs. Henry VIII - Mark Robinson and Alex Gendler
He was a powerful king whose break with the church of Rome would forever change the course of English history. But was he a charismatic reformer who freed his subjects from a corrupt establishment or a bullying tyrant who used Parliament...
TED Talks
TED: How isolation fuels opioid addiction | Rachel Wurzman
* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences. What do Tourette syndrome, heroin addiction and social media obsession all have in common? They converge in an area...
TED Talks
TED: 3 reasons why we can win the fight against poverty | Andrew Youn
Half of the world's poorest people have something in common: they're small farmers. In this eye-opening talk, activist Andrew Youn shows how his group, One Acre Fund, is helping these farmers lift themselves out of poverty by delivering...