This BBC Web site is absolutely packed with interactive features and cool facts about human senses. Created as the online companion to a recently-aired BBC science documentary series, this Web site offers a fun way to explore the five senses and the human brain. A set of quirky tests help visitors determine whether they are supertasters, learn about their personalities via the foods they crave, or...

As the "Scientific American_ article in the first Web site (1) asks: "When you eat chicken, does it feel pointy or round? Is a week shaped like a tipped-over D with the days arranged counterclockwise? Does the [musical] note B taste like horseradish? Do you get confused about appointments because Tuesday and Thursday have the same color?" For most people, the answer would be a resounding 'no,' but...