TED-Ed
TED-Ed: The rise and fall of the medieval Islamic Empire | Petra Sijpesteijn and Birte Kristiansen
In the 7th century CE, the prophet Muhammad united the people of the Arabian Peninsula through the formation of Islam. Over the next 30 years, caliphs conquered vast areas beyond Arabia, including their mighty neighbors the Persians and...
Crash Course
Karl Marx & Conflict Theory: Crash Course Sociology
Today we’ll continue to explore sociology’s founding theorists with a look at Karl Marx and his idea of historical materialism. We’ll discuss modes of production, their development, and how they fit into Marx’s overall theory of...
TED Talks
TED: Racism thrives on silence -- speak up! | Dexter Dias
Racism thrives on your silence and apathy, says human rights lawyer Dexter Dias. Telling the story of a harrowing UK court case that spotlights the corrosive effects of injustice, Dias urges us all to speak out and expose toxic myths...
TED Talks
Possible futures from the intersection of nature, tech and society | Natsai Audrey Chieza
Biodesigner Natsai Audrey Chieza prototypes the future, imagining a world where people and nature can thrive together. In this wildly imaginative talk, she shares the vision behind her innovation lab, which works at the intersection of...
SciShow
Solar-Powered Plane and Contagious Shellfish Cancer
A plane fueled only by the sun is flying around the world and a certain cancer in shellfish is contagious! Olivia Gordon explains these stories in this week's SciShow News.
TED Talks
TED: 4 ways to redefine power at work to include women of color | Rha Goddess and Deepa Purushothaman
With many women of color considering exiting the workforce due to unfair conditions, it's time to reshape systems in order to put an end to this massive loss of talent. Exposing the harmful repercussions of racist, toxic organizational...
3Blue1Brown
The most unexpected answer to a counting puzzle
A puzzle involving colliding blocks where the number pi, vey unexpectedly, shows up.
Crash Course
Grip and Electric: Crash Course Film Production
It's time to look at some of the most under-sung heroes of the film world, Grip and Electric. Doing everything from setting up dollies and tripods, to helping the cinematographer shape the light with flags and silks, the Grips are there...
TED-Ed
TED-Ed: The secret messages of Viking runestones | Jesse Byock
With their navigational skills and advanced longships, the Vikings sustained their seafaring for over 300 years. But for all their might, they left few monuments. Instead, fragments of stone, bark and bone found in the sites of ancient...
TED Talks
TED: Is war between China and the US inevitable? | Graham Allison
Taking lessons from a historical pattern called "Thucydides's Trap," political scientist Graham Allison shows why a rising China and a dominant United States could be headed towards a violent collision no one wants -- and how we can...
TED Talks
P.W. Singer: Military robots and the future of war
In this powerful talk, P.W. Singer shows how the widespread use of robots in war is changing the realities of combat. He shows us scenarios straight out of science fiction -- that now may not be so fictitious.
TED Talks
Alice Dreger: Is anatomy destiny?
Alice Dreger works with people at the edge of anatomy, such as conjoined twins and intersexed people. In her observation, it's often a fuzzy line between male and female, among other anatomical distinctions. Which brings up a huge...
TED-Ed
TED-Ed: The wars that inspired Game of Thrones - Alex Gendler
Beginning around 1377, medieval England was shaken by a power struggle between two noble families, which spanned generations and involved a massive cast of characters, complex motives and shifting loyalties. Sound familiar? Alex Gendler...
TED Talks
TED: The shocking move to criminalize nonviolent protest | Will Potter
In 2002, investigative journalist and TED Fellow Will Potter took a break from his regular beat, writing about shootings and murders for the Chicago Tribune. He went to help a local group campaigning against animal testing: "I thought it...
TED-Ed
TED-Ed: An anti-hero of one's own - Tim Adams
How can an anti-hero teach us about the heroic--and sometimes, the unheroic--characteristics that shape a story's protagonist? From jealousy to self-doubt, Tim Adams challenges us to consider how anti-heroes reflect the very mortal...
TED Talks
Euvin Naidoo: Why invest in Africa
South African investment banker Euvin Naidoo explains why investing in Africa can make great business sense.
Crash Course
Humans and Energy: Crash Course World History 207
In which Stan Muller subs for John Green and teaches you about energy and humanity. Today we discuss the ideas put forth by Alfred Crosby in his book, Children of the Sun. Historically, almost all of the energy that humans use has been...
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
David Wallace-Wells: How we could change the planet's climate future
The climate crisis is too vast and complicated to solve with a silver bullet, says author David Wallace-Wells. What we need is a shift in how we live. Follow along as he lays out some of the dramatic actions we could take to build a...
SciShow
5 Tiny Bots Inspired by Nature
The creation of tiny robots could enable the exploration of new frontiers, from the tightest spaces in the human body to the most remote ecosystems. Here are 5 little bots that draw inspiration from nature to get the job done.
TED Talks
My wish: A global day of film - Jehane Noujaim
The first step to world peace is for people to meet each other. We can't all travel the world at the same time, but we can meet each other in other ways. In this talk, Jehane Noujaim unveils her 2006 TED Prize wish: to bring the world...
TED Talks
TED: We need nuclear power to solve climate change | Joe Lassiter
Joe Lassiter is a deep thinker and straight talker focused on developing clean, secure and carbon-neutral supplies of reliable, low-cost energy. His analysis of the world's energy realities puts a powerful lens on the stubbornly touchy...
TED Talks
TED: A demo of wireless electricity | Eric Giler
Eric Giler wants to untangle our wired lives with cable-free electric power. Here, he covers what this sci-fi tech offers, and demos MIT's breakthrough version, WiTricity -- a near-to-market invention that may soon recharge your cell...
TED Talks
Rose M. Mutiso: How to bring affordable, sustainable electricity to Africa
Energy poverty, or the lack of access to electricity and other basic energy services, affects nearly two-thirds of Sub-Saharan Africa. As the region's population continues to increase, so will the need to build a new energy system to...