Watch a demonstration of how advanced heartbeat detection technology is used in disaster response training.

Emergency workers were able to identify four men who'd been trapped in Nepal's rubble—and then save them—thanks to a novel technology: advanced heartbeat detection.

The recent rescues represent the first ever real-world use of advanced sensing technology developed by NASA and the Department of Homeland Security.

Two prototype units of that system, called Finding Individuals for Disaster and Emergency Response (FINDER), were sent to Nepal in the days following the April 25 earthquake. (Read about how Nepal could be rebuild for the next earthquake.)

“For me as the developer of the technology, it was like sending a child off to college,” says Jim Lux, who manages the project at NASA’s Jet Propulsion Laboratory in California.

About the size of a

DON'T MISS THE REST OF THIS STORY!
Create a free account to continue and get unlimited access to hundreds of Nat Geo articles, plus newsletters.

Create your free account to continue reading

No credit card required. Unlimited access to free content.
Or get a Premium Subscription to access the best of Nat Geo - just $19
SUBSCRIBE

Read This Next

Did this mysterious human relative bury its dead?
This new birth control for cats doesn't require surgery
How the Zoot Suit Riots changed America

Go Further

Subscriber Exclusive Content

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet