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Joe Palca

Engineers at the University of California Berkeley have developed a patch that can measure someone's sweat composition and sweat rate at the site of excretion.

What To Feed Locusts

Aug 9, 2019

RACHEL MARTIN, HOST:

Here at NPR, we've been trying to do more stories that answer people's questions about issues they face in their daily lives. NPR's Joe Palca apparently didn't get the memo because he's got a story with the answer to a question almost nobody has - what to feed a colony of captive locusts.

JOE PALCA, BYLINE: To answer that question, it helps to go to Tempe, Ariz.

RICK OVERSON: We are inside one of the two main rooms of the locust lab here at Arizona State University. We affectionately refer to it as Hopper Town.

On July 2, the path of a total solar eclipse took it over the Cerro Tololo Inter-American Observatory. Even though that observatory is designed to study the night sky, it nonetheless made an idea spot to watch the Moon's shadow sweep east across the nearby Pacific Ocean.

STEVE INSKEEP, HOST:

A telescope now under construction promises to revolutionize astronomy. It's being built atop a mountain in Chile, in the Andes. It's called the LSST. It is a survey telescope taking wide-angle views of the sky. And this telescope is expected to spot rare events that previously have been hard or impossible to find. NPR science correspondent Joe Palca toured the telescope's construction site.

ARI SHAPIRO, HOST:

There's a telescope high up in the mountains of Chile that's looking for signals from the earliest moments of the universe. Finding these signals would be key to explaining how the universe began. NPR's Joe Palca has just returned from a visit to the telescope, and he has this report on a remarkable facility in a remarkable location.

JOE PALCA, BYLINE: The telescope is called CLASS. It's located on top of Cerro Toco in the Atacama Desert, one of the driest places on Earth. And at 17,000 feet, it's one of the highest telescopes in the world.

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