Elbows key for walkers' efficiency

Wandering through the Harvard campus one day in 2015, graduate student Andrew Yegian recalls how something unusual caught his eye. "I noticed a person running with straight arms," he explains. This really stood out for Yegian, ...

A new way to grow crops in marginal soils could help feed the world

The global population is expected to reach 9.7 billion in 2050—but how will we feed all these people? Roughly one-third of the world's arable land suffers from lack of accessible iron, rendering it inhospitable to staple ...

page 1 from 23