Tag «TED-Ed»

The history of tattoos – Addison Anderson

The history of tattoos – Addison Anderson

Thinking of getting a tattoo? Decorating your birthday suit would add another personal story to a history of tattoos stretching back at least 8000 years. Tattooed mummies from around the world attest to the universality of body modification across the millennia, and to the fact that you really were stuck with it forever if your …

The complex geometry of Islamic design – Eric Broug

The complex geometry of Islamic design – Eric Broug

In Islamic culture, geometry is everywhere. You can find it in mosques, madrasas, palaces and private homes. This tradition began in the 8th century CE during the early history of Islam, when craftsmen took preexisting motifs from Roman and Persian cultures and developed them into new forms of visual expression. This period of history was …

The true story of ‘true’ – Gina Cooke

The true story of ‘true’ – Gina Cooke

Everyone knows that stories are made up of words, from short poems to epic novels. But did you know that a single word itself can tell an entire story? You see, just as we can look at a story’s plot, setting, and characters, we can also study the history of an individual word, where it …

The fascinating history of cemeteries – Keith Eggener

The fascinating history of cemeteries – Keith Eggener

Spindly trees, rusted gates, crumbling stone, a solitary mourner— these things come to mind when we think of cemeteries. But not so long ago, many burial grounds were lively places, with blooming gardens and crowds of people strolling among the headstones. How did our cemeteries become what they are today? Some have been around for …

How tsunamis work – Alex Gendler

How tsunamis work – Alex Gendler

In 479 BC, when Persian soldiers besieged the Greek city of Potidaea, the tide retreated much farther than usual, leaving a convenient invasion route. But this wasn’t a stroke of luck. Before they had crossed halfway, the water returned in a wave higher than anyone had ever seen, drowning the attackers. The Potiidaeans believed they …

Where did Russia come from? – Alex Gendler

Where did Russia come from? – Alex Gendler

Where did Russia come from, why is it so big, and what are the differences between it and its neighbors? The answers lie in an epic story of seafaring warriors, nomadic invaders, and the rise and fall of a medieval state known as Kievan Rus. In the first millennium, a large group of tribes spread …