Researchers have developed a new technology to sense the acoustic conditions that indicate oncoming landslides.
Dec 1, 2010 IEEE Spectrum
<p>A look at how Sao Paulo's extensive bus system keeps the crowded Brazilian city's 18 million residents moving.</p>
Jun 9, 2007 IEEE Spectrum
High-speed rail works well in Europe and Japan, so why can't the United States get it right?
Jan 16, 2003 IEEE Spectrum