Up next, another installment in the continuing quest to understand antimatter, that stuff that's supposed to be the opposite of matter. It's supposed to have been created during the Big Bang in equal amounts as normal matter, but for some reason, it's all disappeared. No one knows why - yeah, that stuff or actually that anti-stuff.
This spring the massive "Brood II" batch of 17-year cicadas is expected to emerge from the ground in backyards and parks all along the Eastern U.S. The insects will mate, lay eggs, and start the cycle all over again. Cicada expert John Cooley explains the unusual biology and evolution of periodical cicadas.
Food writer Michael Pollan once advised "Eat food. Not too much. Mostly plants." Now, he tells us how to cook it. In his new book Cooked: A Natural History of Transformation, he takes a tour of the most time-tested cooking techniques, from southern whole-hog barbecue and slow-cooked ragus to sourdough baking and pickle making.
When the Great Storm of 1900 battered Galveston, Texas, the town simply lifted itself up--in some places as much as 17 feet. Could a similar approach save cities today? Randy Behm of the US Army Corps of Engineers and Dwayne Jones of the Galveston Historical Foundation talk about the costs and feasibility of raising a town, albeit with better technology than Galveston's hand-cranked jacks and mules.
This is SCIENCE FRIDAY. I'm Ira Flatow. Imagine stepping onto the Earth two billion years ago, taking a stroll along the shores of an ancient beach near the northern edge of what today is Lake Superior. You wouldn't see any trees. They didn't hit the scene until, oh, another billion-and-a-half years. What you might see, though, if you had a microscope, were tiny bacteria-like organisms on the shore having a ball eating each other.
A local physician is making history with an advanced technology to treat problems with vocal cords, and people are coming to San Antonio from around the country for the procedure.
Dr. Blake Simpson at UT Medicine San Antonio, the clinical practice of the School of Medicine at the Health Science Center, specializes in voice disorders and for the last six years has used a procedure to remove polyps and other growths on the vocal cords using a laser fiber.
"It's not about making learning happen. It's about letting it happen." — Sugata Mitra
Learning is an integral part of human nature. But why do we — as adults — assume learning must be taught, tested and reinforced? Why do we put so much effort into making kids think and act like us? In this hour, TED speakers explore the ways babies and children learn, from the womb to the playground to the Web.
After years of offering children self-supervised access to the Web, Sugata Mitra says kids can teach themselves. Mitra continues the conversation from earlier this episode by arguing that self-organized classes are the future of education, and he puts forward a bold vision: to build a school in the cloud.