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Ugly History: Cambodian Genocide - Timothy Williams

Dig into the era of the Khmer Rouge in Cambodia, which perpetuated a genocide that killed a quarter of the country’s population. -- From 1975 to 1979, the Communist Party of Kampuchea ruled Cambodia with an iron fist, perpetrating a genocide that killed one fourth of the country’s population. Roughly one million people were executed as suspected...

How does heart transplant surgery work? - Roni Shanoada

Dig into the science of how heart transplants happen, how donors are matched and find out how this complex surgery saves lives. -- Your heart beats more than 100,000 times a day. In just a minute, it pumps over five liters of blood throughout your body. But unlike skin and bones, the heart has a limited ability to repair itself. So if this organ...

Why are eating disorders so hard to treat? - Anees Bahji

Dig into the psychiatric conditions of eating disorders, and explore the complex effects they have on the body and mind. -- Globally, about 10% of people will experience an eating disorder during their lifetime. And yet, eating disorders are profoundly misunderstood. Misconceptions about everything from symptoms to treatment make it difficult...

The rebel radio that brought down a war criminal - Diana Sierra Becerra

Get to know the story of Radio Venceremos, an underground radio collective that fought US-backed fascism during the Salvadoran Civil War. -- Since the 1800s, a handful of oligarchs had controlled nearly all of El Salvador’s land, forcing laborers to work for almost nothing. But in 1980, farmers and urban workers formed guerrilla groups to overthrow...

Does trickle-down economics actually work? - Jonathan Smith

Dig into trickle-down economics, which claims that tax cuts for corporations and the wealthy stimulate the economy and improve people's lives. -- In 1981, the US economy was struggling: unemployment rates were climbing and inflation had peaked at an all-time high. To combat these issues, President Reagan introduced a number of economic policies,...

The biggest mistakes in mapmaking history - Kayla Wolf

Travel through the history of mapmaking and discover what big mistakes cartographers made about the world’s geography. -- For thousands of years, people made both functional maps and what are known as cosmographies, illustrating the earth and its position in the cosmos, often including constellations, gods, and mythic locations. These maps were...

The Irish myth of Diarmuid’s betrayal - Iseult Gillespie

Dig into the Irish myth of lovers Gráinne and Diarmuid, and follow their journey as they flee from her betrothed, Fionn. -- Gráinne, princess of Tara and bride-to-be, was furious. She had thought she was betrothed to a young soldier, bold and brilliant enough to be her equal. Yet it soon became clear she was expected to marry Fionn, a warrior...

How the Suez Canal changed the world - Lucia Carminati

Dig into the construction of the Suez Canal, and discover how it became one of the world’s busiest maritime passages. -- Today, nearly 30% of all global ship traffic passes through the Suez Canal, totaling over 20,000 ships in 2021. The site of the canal had been of interest to rulers as far back as the second millennium BCE, but plans to construct...

The myth of the original star-crossed lovers - Shannon Zhao

Get to know the myth of the weaver and the cowherd, a pair of star-crossed lovers banished to opposite sides of the Milky Way. -- In the court of the Jade Emperor, a young princess had a special skill: she could pluck clouds from the sky and spin them into the softest robes. But her craft was the same day after day, and she longed for new inspiration....

Can you solve the feeding frenzy riddle? - Henri Picciotto

Practice more problem-solving at https://brilliant.org/TedEd -- As Numberland’s best detective, you thought you’d seen it all. But the desiccated corpses of prominent natural numbers have been showing up all over the city. A lockdown is ordered from sundown to sunrise, and it’s still not enough to stop what can only be described as a vampiric...

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