The Movement Issue
People, goods, ideas, atoms -- there is almost no limit to what moves in our world. In this issue, we explore this exchange and its effects.
With technology, bringing the ACL tear to its knees
Experts in medicine and engineering are using new technology to learn why ACL tears, a devastating sports injury to the knee, occur -- as well as how to prevent them from happening.
From relic to revolutionary: streetcars revitalize city transit
More than a half-century after streetcars were abandoned and burned, at least a dozen U.S. cities are working to revive them.
Where will electric vehicles drive us in 2020? 2030?
A century ago, more automobiles were powered by electricity than by gasoline.
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