TED Talks
Sangu Delle: In praise of macro -- yes, macro -- finance in Africa
In this short, provocative talk, financier Sangu Delle questions whether microfinance — small loans to small entrepreneurs -- is the best way to drive growth in developing countries. "We seem to be fixated on this romanticized idea that...
SciShow
How Does Cold Medicine Work?
The cold medicine you picked up at the store involves some cool chemistry to treat your symptoms.
TED-Ed
TED-Ed: Why don't we cover the desert with solar panels? | Dan Kwartler
Stretching over roughly nine million square kilometers and with sands reaching temperatures of up to 80° Celsius, the Sahara Desert receives about 22 million terawatt hours of energy from the Sun every year. That's well over 100 times...
TED Talks
Joseph DeSimone: What if 3D printing was 100x faster?
What we think of as 3D printing, says Joseph DeSimone, is really just 2D printing over and over ... slowly. Onstage at TED2015, he unveils a bold new technique -- inspired, yes, by Terminator 2 -- that's 25 to 100 times faster, and...
Crash Course
How Are Cities Organized? Crash Course Geography
Today we’re going to take a closer look at cities, examine how these large complex structures are organized, and identify patterns and differences in land use around the world. We'll begin with a quick recap of Central Place Theory, then...
MinutePhysics
Legitimate Cold Fusion Exists | Muon-Catalyzed Fusion
This video is about the original cold fusion: μ muon-catalyzed cold fusion of deuterium, tritium, hydrogen, into helium-3 and helium 4. The problems with it are the half-life of muons and the sticking of muons to alpha particles. Also...
Crash Course
The Germantown Petition Against Slavery Crash Course Black American History
In 1688, in Pennsylvania, a group of four men created the Germantown Petition, which made the case that slavery was immoral, and that it was inconsistent with Christian beliefs in general, and Quaker beliefs specifically. While the...
TED Talks
TED: A 3-part plan to take on extreme heat waves | Eleni Myrivili
The deadliest severe weather phenomenon is something you might not realize: extreme heat. Eleni Myrivili, chief heat officer of the city of Athens, Greece, explains that extreme heat and heat waves are often overlooked because they're...
SciShow
What’s in the 4% of our DNA that makes us different from chimps?
On the genetic level, we're not all that different from chimps. But those small differences in DNA can have huge effects.
SciShow
Why Don't We Have Cancer-Sniffing Dogs?
There are a lot of stories out there about dogs who seemed to smell lung cancer on their owner’s breath, and a recent study found that some dogs can detect lung cancer in blood samples with astonishing accuracy. So why aren’t there...
SciShow
Weight Loss Pills: Fact Or Fiction?
Enjoy your bacon sandwich, while we walk you through the facts and fictions of what science can -- and maybe someday, will -- do to help people lose weight safely.
SciShow
The 2017 Nobel Prizes: Biological Clocks and Microscopy
Last week, the recipients of the 2017 Nobel Prizes were announced. We take a closer look at the winners of the Physiology and Chemistry Awards, whose breakthroughs change the way we study sleep, and allow us to look at microscopic...
TED Talks
Ryan Holladay: To hear this music you have to be there. Literally
In this lovely talk, TED Fellow Ryan Holladay shares his experiment with "location-aware music." This programming and musical feat involves hundreds of geotagged segments of sounds that only play when a listener is physically nearby,...
TED Talks
TED: How the US fails working parents -- and what they need to thrive | Reshma Saujani
The pandemic brought into sharp focus the crisis in caregiving in the United States, which woefully under provides support for parents. Activist and Girls Who Code founder Reshma Saujani has a proposal to address that -- something she...
SciShow
What We Do With Dead Bodies
Everyone dies, but what do we do with those bodies? In this episode of SciShow, Hank explores the various options, from mummification to liquefaction, and everything in between.
Crash Course
Pee Jokes, the Italian Renaissance, Commedia Dell'Arte: Crash Course Theater #12
This week, we're going to Italy for a Renaissance. The Middle Ages are over, and it's time to talk about the flourishing of art and humanism across Europe. Painting, sculpture, music, architecture, and plays with fart jokes were all...
TED-Ed
TED-Ed: Iseult Gillespie: Frida Kahlo: The woman behind the legend
In 1925, Frida Kahlo was on her way home from school in Mexico City when the bus she was riding collided with a streetcar. She suffered near-fatal injuries and her disability became a major theme in her paintings. Over the course of her...
Crash Course
Yu the Engineer and Flood Stories from China: Crash Course World Mythology
On this Crash Course in World Mythology, Mike Rugnetta is teaching you about floods and deluges, specifically in China. In Chinese myth, flood stories pretty much all revolve around a guy named Yu the Great, or Yu the Engineer. In the...
SciShow
Using Devil's Milk to Kill Superbugs
Scientists are turning to unusual places to find new compounds to fight off drug-resistant “superbugs.” The discovery came from milking ferocious mammals!
SciShow
5 Things You Were Taught Wrong in Elementary School | Compilation
When you’re learning about science for the first time, it can be easier to break things down into a simpler form, and you can end up with a few misconceptions about the world. But sometimes this is the first step to understanding that...
SciShow
8 Medications with Surprising Secondary Uses
Sometimes medications that were developed to treat one condition can end up being useful for seemingly unrelated ailments. Chapters View all DEXTROMETHORPHAN & PSEUDOBULBAR AFFECT 1:48 MEMANTINE & OCD 2:25 NALTREXONE & BEHAVIORAL...
TED Talks
TED: The billion-dollar campaign to electrify transport | Monica Araya
The roadmap to ending pollution from transportation is here, says electrification advocate Monica Araya. In conversation with head of TED Chris Anderson, Araya introduces Drive Electric: a global campaign to retire the polluting internal...
TED Talks
TED: Tips for reclaiming your peace of mind online | Naomi Shimada
TED talks about tips for reclaiming your peace of mind online | Naomi Shimada
TED-Ed
TED-Ed: Is life meaningless? And other absurd questions | Nina Medvinskaya
Albert Camus grew up surrounded by violence. His homeland of Algeria was mired in conflict. He lost his father in World War I. Seeing World War II's devastation, Camus grew despondent. What was the meaning behind all this endless...