World
Bernie Krause has been recording wild soundscapes the wind in the trees the chirping of birds the subtle sounds of insect larvae for 45...James Glattfelder studies complexity how an interconnected system say a swarm of birds is more than the sum of its parts. And complexit...View full lesson
It may seem that were living in a borderless world where ideas goods and people flow freely from nation to nation. Wer...How do we make sure that development and aid money actually goes to the people who most need it Sanjay Pradhan of the World Bank Institut...View full lesson
By now were used to letting Facebook and Twitter capture our social lives on the web building a social layer on top o...View full lesson
You are made of polymers and so are trees and telephones and toys. A polymer is a long chain of identical molecules or...When photographed under a 3D microscope grains of sand appear like colorful pieces of candy and the stamens in a flower become like fanta...