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From Wondry, I'm Stephen Johnson, and this is American Innovations.

When the US military created microwave radar, it gave itself a superpower.

Suddenly we could pick up the size, speed, and location of objects miles away.

We could use technology to reach out far beyond our own human senses.

Since World War II, scientists have continued to use radar to explore what we can't see or hear ourselves.

And their uses have become increasingly creative.

On this episode, we're talking to three people involved in some of the most fascinating applications of radar today.

We'll hear about how radar is helping oceanographers finally see the ocean floor in high-res detail,

and the surprising way we can use radar to aid search and rescue missions.

But first, I'm chatting with Sarah Kylie Watson, whose article,

Scientists Explored a Buried Roman City without digging up an ounce of soil,

recently appeared in Popular Science Magazine.

She'll tell us about how archaeologists were able to use radar to get a bird's-eye view of an underground city.

Hi, I'm Lindsey Graham, host of Wondry's podcast American Scandal.

Our newest series looks at the trial of the Chicago Seven, a case involving protests of the Vietnam War,

and a legal fight that became a referendum on the soul and future of America.

Listen to American Scandal on Amazon Music, or wherever you get your podcasts.

In a four-part series, The Generation Y Podcast unravels the story of Calif Browder,

a young boy falsely accused of stealing a backpack and held it Recker's island for three years without trial.

This is a story about a young life caught in the middle of the justice system.

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