Learning management from Orchestra conductors

Itay Talgam did not mean to address this question when he appeared at Google’s 2008 Zeitgeist Conference, but he inadvertently offered an answer. Talgam, a renowned Israeli orchestra conductor, stood on a small semicircular stage wearing a wrinkled cotton polo shirt with a sweater draped over his shoulders, his sparse hair shooting in several directions. For a … Read more

Cryptography and Communication

Shannon summarized his war work on secret communications in a 114-page opus, “A Mathematical Theory of Cryptography,” which he finished in 1945. The paper was immediately deemed classified and too sensitive for publication, but those who read it found a long treatise exploring the histories and methodologies of various secrecy systems. Moreover, he had offered … Read more

The Semiconductors

Semiconductors—as their name implies, neither conductors nor insulators—are a curious case. In their outer band, atoms that comprise these substances have somewhere between three and five electrons, and they seem to exhibit qualities that are different from those of either a conductor or an insulator. Early in the twentieth century, physicists noted that these materials … Read more

Taking Notes Kills Your Memory

Forgetting everything you hear in classes or meetings? Your overstuffed notepad might be the culprit. Most of us take notes because we think doing so will help us remember what we’re learning. According to psychologists at Mount St. Vincent University in New York, our brains have a different view: “Hey, he’s writing this down, so no need to warehouse … Read more

Blacks in Prison by Bryan Stevenson

Well this is a really extraordinary honor for me. I spend most of my time in jails, in prisons, on death row. I spend most of my time in very low-income communities in the projects and places where there’s a great deal of hopelessness. And being here at TED and seeing the stimulation, hearing it, has been very, very energizing to me. And … Read more