Measuring our love of stuff A new study says we continue to add more big-ticket items to the list of things we can't live without. Some of the items making the biggest gains over the past ten years are a mix of old and new: microwave ovens and cell phones.9:06 a.m.
Paul Taylor: Executive vice president of the Pew Research Center and one of the authors of the center's "Luxury or Necessity?" study.
Robert Thompson: Founding director of the Center for the Study of Popular Television at Syracuse University, where he is also a professor of Television and Popular Culture at the S.I. Newhouse School of Public Communications.
The chemistry of food Ever wonder why those Christmas cookies crumble before they hit the plate? Or why melted chocolate suddenly turns to rock while you're stirring? Food chemist Shirley Corriher offers insight into the mysteries of cooking.10:06 a.m.
Shirley Corriher: Author of "CookWise: The Hows & Whys of Successful Cooking with Over 230 Great-Tasting Recipes." She's working on another book, called "Bakewise."