How we could make carbon-negative concrete | ...

If you had to explain to a newborn -- or an alien -- what it means to be a human being living on Earth in the 21st century, what would you say? Visual artist Oliver Jeffers put his answer in a letter to his son, sharing pearls of wisdom on existence and the diversity of life. He ...  Afficher plus

The end of the year is a time to reflect and think ahead. What hopes did you have for 2025, and what might be different for 2026? In this special episode, learn from three TED-Ed lessons on how to overcome your mistakes, make smarter decisions and get motivated even when you don’ ...  Afficher plus

Concrete is the most widely used substance on earth after water. It’s quite literally the foundation of the modern world, and no wonder - it’s strong, cheap, and mouldable into nearly any shape.

But these benefits come at a cost: concrete production is responsible for ar ...

Concrete is so much more than just a sidewalk. We use it to build playgrounds and skateparks and even musical instruments! But how does it go from a powder to a sludge to the strong building material that we use all over the world? And can we come up with new recipes that are ...

It's improved health, school attendance, agricultural productivity and farm worker wages, but concrete has a poor reputation. It takes a lot of energy to produce and releases a great deal of CO2 in the process. However, architects appreciate its versatility and there are few more ...  Afficher plus

Wood is strong enough to build skyscrapers, and bamboo - the fastest growing plant in the world - can also be used for building. Both suck up large amounts of greenhouse gas. We find out what would happen if we used these materials instead of concrete in construction. Produced an ...  Afficher plus