Discuss “How Things Work: Cloud Seeding”

Here in Pittsburgh, we?re very familiar with clouds. During the winter months, Pittsburgh averages over 70 percent daily cloud cover. We aren?t strangers of rain, either: The Three Rivers have crested over 30 feet more than 25 times since charting began in the 1760s. With this abundance of rain, it?s hard to imagine not having enough. But what if you were a farmer, your livelihood dependent on the rainfall of your region? What if you were plagued by droughts? Once upon a time, you might have been tempted to perform a rain dance. Today, we need no rain dance: We can make our own rain. Are the X-Men real? Does Storm rent out her rain-making services to the highest bidder? No, we?ve got technology. Here?s how things work:

This technology, known...