We don't have to live in a world where 99 percent of rapists get away with it, says TED Fellow Jessica Ladd. With Callisto, a new platform for college students to confidentially report sexual assault, Ladd is helping survivors get the...

Deep inside Yale's Beinecke Rare Book and Manuscript Library lies a 240 page tome. Recently carbon dated to around 1420, its pages feature looping handwriting and hand drawn images seemingly stolen from a dream. It is called the Voynich...

Given the choice between a job candidate with a perfect resume and one who has fought through difficulty, human resources executive Regina Hartley always gives the "Scrapper" a chance. As someone who grew up with adversity, Hartley knows...

How can you help kids get a good start? In this heartfelt and personal talk, Colin Powell, the former U.S. Secretary of State, asks parents, friends and relatives to support children, starting before they even get to primary school,...

Sex is as much mental as it is physical -- and imagination is the most powerful tool we have to expand our personal agency and capacity for pleasure, says sexual wellness storyteller Gina Gutierrez. The founder of audio-erotica company...

You know the "forgotten middle": they're the students, coworkers and regular people who are often overlooked because they're seen as neither exceptional nor problematic. How can we empower them to reach their full potential? Sharing her...

Despite computers barely being a thing when she was born, Valerie Thomas knew that she was cut out for the tech world, pushed until she got there, and contributed to some hugely important technologies that many of us could not live without.

Conservatives and liberals both believe that they alone are motivated by love while their opponents are motivated by hate. How can we solve problems with so much polarization? In this talk, social scientist Arthur Brooks shares ideas for...

Facebook COO Sheryl Sandberg looks at why a smaller percentage of women than men reach the top of their professions -- and offers 3 powerful pieces of advice to women aiming for the C-suite.

Sometimes our eyes do weird things. One of the things that it sometimes does is get floaters. What are they? Where do they come from? Join us today on SciShow as Hank explores the science behind these little specks.

In Rajasthan, India, an extraordinary school teaches rural women and men -- many of them illiterate -- to become solar engineers, artisans, dentists and doctors in their own villages. It's called the Barefoot College, and its founder,...

If you can't afford an attorney, one will be appointed for you, right? Not in US civil court. From high legal fees to confusing paperwork and expensive lawyers, it can be difficult to settle civil matters. Entrepreneur and TED Fellow...

Hector Ruiz, the executive chair of AMD, wants to give Internet access to everyone. In this talk, he shares his extraordinary life story and describes AMD's 50x15 initiative that calls for connecting 50 percent of the world by 2015.

"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...

Once upon a time in America, says professor Sajay Samuel, "going to college did not mean graduating with debt." Today, higher education has become a consumer product -- costs have skyrocketed, saddling students with a combined debt of...

Singer/guitarist Raúl Midón performs "All the Answers" in a world premiere at TED2007, followed by the sprightly "Tembererana."

Bill Gross has founded a lot of startups, and incubated many others -- and he got curious about why some succeeded and others failed. So he gathered data from hundreds of companies, his own and other people's, and ranked each company on...

Hank describes mitosis and cytokinesis - the series of processes our cells go through to divide into two identical copies.

Patrick, Paul, and Tyler on Learning.

Vultures, you eat old, putrid dead things for a living. How is that not killing you? Hank explains the secret weapons vultures use to fight off disease, avoid predators, and beat the heat. Prepare for a Sci-Show Gross-Out!

Henrietta Swan Leavitt was one of a number of volunteer women astronomers who were allowed to serve as "computers" at Harvard College Observatory, doing tedious work male scientists wouldn't do, and ultimately making a discovery now...

Nobel Peace Prize winner Leymah Gbowee has two powerful stories to tell -- of her own life's transformation, and of the untapped potential of girls around the world. Can we transform the world by unlocking the greatness of girls?

Wofford College president Bernie Dunlap tells the story of Sandor Teszler, a Hungarian Holocaust survivor who taught him about passionate living and lifelong learning.

This week, we're on to reading Ralph Ellison's great novel about the black experience in America after World War II, Invisible Man. John will teach you about Ellison's nameless narrator, and his attempts to find his way in a social order...