Weekend Experiment: How to set an invisible trap for soap bubbles

Like most people, you probably spent a portion of your childhood with a bubble wand in your hand. And you probably know that bubbles are mercurial little guys — always zooming away and popping when you catch them. But there's little way to trap them without popping them. With carbon dioxide and a little practice, you… »8/31/12 3:30pm8/31/12 3:30pm