OCW
The city that wasted nothing
400 years ago, Edo was on the verge of ecological collapse. Years of intense logging had led to massive deforestation and the city faced timber shortages, severe erosion, and frequent flooding. But over just a few decades, Edo became one of the most sustainable and efficient cities in history. So, h..
TED
This is how kids should be learning with AI
As AI races into classrooms, we risk confusing quick and easy answers with true learning, says AI education entrepreneur Priya Lakhani. She explains why being challenged is essential for making knowledge stick — and how AI can be designed to strengthen (not weaken) learning, teaching and thinking.
TED
Was Alexander the Great really that great?
Alexander the Great fundamentally transformed the world during his 13-year reign. He conquered Persia when it was one of the world’s largest empires, and he was considered a living demi-god by Egyptians and Greeks. But was he a brilliant, embattled leader, or a ruthless, power-hungry conqueror? St..
TED
How to tell if you have seasonal affective disorder
As winter approaches, shorter days spark a cascade of changes within the brains of animals. As a result, groundhogs retreat to their burrows for hibernation, weasels’ coats turn from brown to white, and birds cease their singing. And scientists are finding that seasonal behavioral changes similarl..
TED
How does light therapy help treat seasonal depression?
As winter approaches, shorter days spark a cascade of changes within the brains of animals. As a result, groundhogs retreat to their burrows for hibernation, weasels’ coats turn from brown to white, and birds cease their singing. And scientists are finding that seasonal behavioral changes similarl..
TED
What’s the best position to sleep in?
Sleep positions go by countless creative names— the zombie, mountain climber, free faller, soldier, and more. Yet sleep experts typically simplify them into the basic types: side, stomach, or back. Individual sleep styles are highly personal, but how we spend the night affects our bodies and healt..
TED
