TED Talks
TED: What security means to me | Eve Ensler
Playwright Eve Ensler explores our modern craving for security -- and why it makes us less secure. Listen for inspiring, heartbreaking stories of women making change.
SciShow
Why We Like Bad News
Even if we say we prefer good news, we're wired to pay more attention to bad news. And while it might feel like the world is becoming a more scary, dangerous place, many things are actually better now than ever, and social media might be...
TED Talks
TED: Embrace your raw, strange magic | Casey Gerald
* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences. The way we're taught to live has got to change, says author Casey Gerald. Too often, we hide parts of ourselves in...
TED Talks
Shimon Schocken: What a bike ride can teach you
Computer science professor Shimon Schocken is also an avid mountain biker. To share the life lessons he learned while riding, he began an outdoor program with Israel's juvenile inmates and was touched by both their intense difficulties...
TED Talks
Frances Larson: Why public beheadings get millions of views
In a disturbing — but fascinating — walk through history, Frances Larson examines humanity's strange relationship with public executions … and specifically beheadings. As she shows us, they have always drawn a crowd, first in the public...
TED Talks
TED: The art of bow-making | Dong Woo Jang
Dong Woo Jang has an unusual after school hobby. Jang, who was 15 when he gave the talk, tells the story of how living in the concrete jungle of Seoul inspired him to build the perfect bow. Watch him demo one of his beautiful...
TED-Ed
How much land does it take to power the world? | TED-Ed
No matter how we make electricity, it takes up space. Coal requires mines, and plants to convert it into electricity. Nuclear power takes uranium mines, facilities to refine it, a reactor, and a place to store the spent fuel safely....
TED Talks
TED: How we'll fight the next deadly virus | Pardis Sabeti
When ebola broke out in March 2014, Pardis Sabeti and her team got to work sequencing the virus's genome, learning how it mutated and spread. Sabeti immediately released her research online, so virus trackers and scientists from around...
SciShow
Could the Firefly Universe Exist?
Firefly takes place in an incredibly complicated star system. But it probably couldn't exist, because physics.
SciShow
How a Frozen Earth Gave the Moon Its Shape
It might look like a perfect circle, but the Moon is actually wider than it is tall. Now, new calculations indicate that the Moon’s shape is a remnant of a time when Earth might’ve been covered in a single, global ice sheet.
TED Talks
Suleika Jaouad: What almost dying taught me about living
"The hardest part of my cancer experience began once the cancer was gone," says author Suleika Jaouad. In this fierce, funny, wisdom-packed talk, she challenges us to think beyond the divide between "sick" and "well," asking: How do you...
TED Talks
Boaz Almog: The levitating superconductor
How can a super-thin 3-inch disk levitate something 70,000 times its own weight? In a riveting demonstration, Boaz Almog shows how a phenomenon known as quantum locking allows a superconductor disk to float over a magnetic rail --...
TED Talks
TED: How urban spaces can preserve history and build community | Walter Hood
Can public spaces both reclaim the past and embrace the future? Landscape architect Walter Hood has explored this question over the course of an iconic career, with projects ranging from Lafayette Square Park in San Francisco to the...
Bozeman Science
Rotational Inertia
In this video Paul Andersen explains how the angular momentum of an object if a product of the rotational inertia and the angular velocity. The rotational inertia depends on the mass, radius and shape of the rotating objects. A sample...
Crash Course
Aliens, Time Travel, and Dresden -Slaughterhouse-Five Part I: Crash Course Literature 212
In which John Green teaches you about Kurt Vonnegut's most famous novel, Slaughterhouse-Five. Vonnegut wrote the book in the Vietnam era, and it closely mirrors his personal experiences in World War II, as long as you throw out the time...
SciShow
Why Do Wet Floors Slip, But Wet Clothes Stick
A freshly-mopped floor is slippery, but a wet shirt is super-clingy... so what's the deal? Why can water make some things slick and other things sticky?
TED-Ed
TED-Ed: How did they build the Great Pyramid of Giza? | Soraya Field Fiorio
As soon as Pharaoh Khufu ascended the throne circa 2575 BCE, work on his eternal resting place began. The structure's architect, Hemiunu, determined he would need 20 years to finish the royal tomb. But what he could not predict was that...
TED Talks
TED: Impossible photography | Erik Johansson
Erik Johansson creates realistic photos of impossible scenes -- capturing ideas, not moments. In this witty how-to, the Photoshop wizard describes the principles he uses to make these fantastical scenarios come to life, while keeping...
SciShow
These Animals Don’t Need Oxygen?!
It seems obvious that animals need oxygen to live, but deep in the Mediterranean Sea there is a very small animal that might be doing just fine without any oxygen at all.
TED Talks
Pico Iyer: Where is home?
More and more people worldwide are living in countries not considered their own. Writer Pico Iyer -- who himself has three or four “origins” -- meditates on the meaning of home, the joy of traveling and the serenity of standing still.
TED Talks
TED: My road trip through the whitest towns in America | Rich Benjamin
As America becomes more and more multicultural, Rich Benjamin noticed a phenomenon: Some communities were actually getting less diverse. So he got out a map, found the whitest towns in the USA -- and moved in. In this funny, honest,...
TED Talks
TED: The next big thing is coming from the Bronx, again | Jon Gray
* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences. "The hood is good," says Jon Gray of the Bronx, New York-based creative collective Ghetto Gastro. Working at the...
TED Talks
Diane Benscoter: How cults rewire the brain
Diane Benscoter spent five years as a "Moonie." She shares an insider's perspective on the mind of a cult member, and proposes a new way to think about today's most troubling conflicts and extremist movements.