Has America lost it's innovation edge?

GOVERNMENT FUNDING of basic research has been astonishingly productive. Over the past five decades it has led to the development of the Internet, lasers, global positioning satellites, magnetic resonance imaging, DNA sequencing, and hundreds of other technologies. With the end… Continue Reading

Solar Power in the US Southwest

Many power plants burn coal or natural gas to make steam and generate electricity. But power also can come from a cleaner, more renewable source — concentrated solar power. From sunny Las Vegas, Nevada, Shelley Schlender reports