http://www.ted.com Clifford Stoll could talk about the atmosphere of Jupiter. Or hunting KGB hackers. Or Klein bottles, computers in classrooms, the future. But he’s not going to. Which is fine, because it would be criminal to confine a man with interests as multifarious as Stoll’s to give a talk on any one topic. Instead, he simply captivates his audience with a wildly energetic sprinkling of anecdotes, observations, asides — and even a science experiment. After all, by his own definition, he’s a scientist: “Once I do something, I want to do something else.”

http://www.ted.com Neuroscientist and inventor Christopher deCharms demos an amazing new way to use fMRI to show brain activity while it is happening — emotion, body movement, pain. (In other words, you can literally see how you feel.) The applications for real-time fMRIs start with chronic pain control and range into the realm of science fiction, but this technology is very real.

http://www.ted.com Architect Norman Foster discusses his own work to show how computers can help architects design buildings that are green, beautiful and “basically pollution-free.” He shares projects from throughout his career, from the pioneering roof-gardened Willis Building (1975) to the London Gherkin (2004). He also comments on two upcoming megaprojects: a pipe to bring water from the Red Sea to the Dead Sea, and the new Beijing airport.