nbvb writes: "It's a sad day for science. The one and only Mr. Wizard, Don Herbert, passed away today at the age of 89. It's impossible to count the number of children — worldwide — who were mesmerized by his amazing feats of science! To all of us who grew up with Mr. Wizard — let's hoist one high and remember a great man. Thanks Don — it's because of you that countless children were excited about science. May your legacy live on!"