Schau dir die ganze Lektion an: http://ed.ted.com/lessons/where-did-earth-s-water-come-from-zachary-metz Wasser bedeckt über 70% der Erde, im Kreislauf von den Meeren und Flüssen zu den Wolken und wieder zurück. Es macht sogar 60% unserer Körper aus. Aber im Rest des Sonnensystems ist es fast unmöglich flüssiges Wasser zu finden. Wie kam es also, dass unser Planet so viel von dieser Substanz hat? Und woher kam sie? Zachary Metz fasst die alten Ursprünge des Wassers auf der Erde zusammen. Lesson von Zachary Metz, Animation von The Moving Company Animation Studio
View full lesson: http://ed.ted.com/lessons/the-language-of-lying-noah-zandan We hear anywhere from 10 to 200 lies a day. And although we’ve spent much of our history coming up with ways to detect these lies by tracking physiological changes in their tellers, these methods have proved unreliable. I
View full lesson: http://ed.ted.com/lessons/a-guide-to-the-energy-of-the-earth-joshua-m-sneideman Energy is neither created nor destroyed — and yet the global demand for it continues to increase. But where does energy come from, and where does it go? Joshua M. Sneideman examines the many ways in wh
David Lang is a maker who taught himself to become an amateur oceanographer -- or, he taught a robot to be one for him. In a charming talk Lang, a TED Fellow, shows how he and a network of ocean lovers teamed up to build open-sourced, low-cost underwater explorers.nnTEDTalks is a daily video podcast
