Robert Krulwich

Robert Krulwich works on radio, podcasts, video, the blogosphere. He has been called "the most inventive network reporter in television" by TV Guide.

Krulwich is a Science Correspondent for NPR. His NPR blog, "Krulwich Wonders" features drawings, cartoons and videos that illustrate hard-to-see concepts in science.

He is the co-host of Radiolab, a nationally distributed radio/podcast series that explores new developments in science for people who are curious but not usually drawn to science shows. "There's nothing like it on the radio," says Ira Glass of This American Life, "It's a act of crazy genius." Radiolab won a Peabody Award in 2011.

His specialty is explaining complex subjects, science, technology, economics, in a style that is clear, compelling and entertaining. On television he has explored the structure of DNA using a banana; on radio he created an Italian opera, "Ratto Interesso" to explain how the Federal Reserve regulates interest rates; he has pioneered the use of new animation on ABC's Nightline and World News Tonight.

For 22 years, Krulwich was a science, economics, general assignment and foreign correspondent at ABC and CBS News.

He won Emmy awards for a cultural history of the Barbie doll, for a Frontline investigation of computers and privacy, a George Polk and Emmy for a look at the Savings & Loan bailout online advertising and the 2010 Essay Prize from the Iowa Writers' Workshop.

Krulwich earned a Bachelor of Arts degree in history from Oberlin College and a law degree from Columbia University.



Wed October 1, 2014
Krulwich Wonders...

Is That A Lark I Hear? A Nightingale? Surprise! It's A Bat

Originally published on Mon October 6, 2014 2:19 pm

Quoctrung Bui NPR

Bats produce "pings" or "clicks," right? They make these high-pitched sounds, too high for us to hear, but when their cries ricochet off distant objects, the echoes tell them there's a house over there, a tree in front of them, a moth flying over on the left. And so they "see" by echolocation. That's their thing. They are famously good at it.

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Sun September 28, 2014
Krulwich Wonders...

2 Ways To Think About Nothing, One Mo' Time


This being my last weekend with this blog, I wanted to repost a story I wrote a few years ago that has continued to intrigue me ...

I'm going to show you two kinds of nothing.

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Fri September 19, 2014
Krulwich Wonders...

'Murdersquishing' Them To Death: How Little Bees Take On Enormous Hornets

Originally published on Fri September 19, 2014 3:28 pm

Courtesy of Matt Inman

I know, I know. You have Putin to worry about, ISIS to worry about, Britain's near breaking, Washington's broken, and the globe keeps getting warmer — so why bring up Japanese giant hornets? You have worries enough. But I can't help myself. I've got to mention these hornets because, as bad as they are — and they are very, very bad ...

... this story has a happy ending.

Hornets From Hell

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Sun September 14, 2014
Krulwich Wonders...

Howling Babies Drove Prehistoric Warriors Into Battle?

Originally published on Mon September 15, 2014 10:26 am


If you have ever seen, or spent time with (or, God forbid, had to live with) a colicky baby, this will make perfect sense to you. It may not make actual sense, but when the baby is crying you don't think very straight.

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Fri September 12, 2014
Krulwich Wonders...

What Makes A Star Starry? Is It Me?

Originally published on Fri September 12, 2014 5:55 pm

Courtesy of Tyler Nordgen


Wed September 10, 2014
Krulwich Wonders...

Souls Tumbling In The Light

Originally published on Thu September 11, 2014 12:58 pm

BirdCast YouTube

Every year on Sept. 11, this happens ...

When it gets dark, New York City turns on 88 7,000-watt xenon light bulbs to produce two powerful beams that shoot up, side by side, to remind us that once upon a time, two towers stood here, and then didn't, and this is how we remember the day they came down — by looking up.

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Sun September 7, 2014
Krulwich Wonders...

Mapping What You Cannot See, Cannot Know, Cannot Visit

Originally published on Mon September 8, 2014 12:54 pm

Nature Video YouTube

When I was a boy I had a globe. I could take it in my hands, rest it on my lap, give it a spin and look down on Africa, Europe, North America and Asia spinning by.

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Fri September 5, 2014
Krulwich Wonders...

Building Me: A Puzzlement

Originally published on Fri September 5, 2014 3:01 pm

It's a puzzle — the deepest puzzle I know. The question is: What are we?

One answer, from physicist-novelist Alan Lightman, is we are stuff. Just stuff.

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Thu September 4, 2014
Krulwich Wonders...

Glenn Gould In Rapture

Originally published on Thu September 4, 2014 9:15 am

Gordon Parks The LIFE Picture Collection/Getty Images

What's going on here, I can only guess, but here's what you're about to see: In the video below, the great musician Glenn Gould, supreme interpreter of Bach, is sitting at his living room piano on a low, low chair, his nose close to the keys. He's at his Canadian country house in his bathrobe.

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Sun August 24, 2014
Krulwich Wonders...

Roadways You Can Install Like Throw Rugs

Courtesy of Erik Johansson

Magic carpets you know about. Aladdin had one. But how about this?

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Thu August 21, 2014
Krulwich Wonders...

When Venus Was Filled With Venusians — 50 Billion Of Them

Originally published on Thu September 4, 2014 12:13 pm

Robert Krulwich NPR

What a difference 180 years makes.

Back in the 1830s, a Scottish minister and amateur astronomer named Thomas Dick tried to calculate the number of intelligent creatures in the universe. He assumed that all heavenly bodies supported intelligent life, maybe not exactly like us, but similar to us in size and habits of living. Then he took population figures for Great Britain and, assuming that space aliens lived just as densely, he projected populations onto various planets.

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Wed August 20, 2014
Krulwich Wonders...

If You're Born In The Sky, What's Your Nationality? An Airplane Puzzler

Originally published on Wed August 20, 2014 9:52 am

Robert Krulwich NPR

Here's a puzzle I bet you've never pondered.

Imagine you are very, very pregnant. For the purposes of this mind game, you are a married American woman (with an American spouse) and you are about to board a plane and, pregnant as you are, they let you on.

Your flight, on Lufthansa Airlines, will leave Frankfurt, Germany, and travel nonstop to the Maldive Islands in the Indian Ocean. Germany is cold, wet and unhappy-making, and you crave the aquamarine waters, the balmy skies of the Maldives.

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Fri August 15, 2014
Krulwich Wonders...

When Snails Lose Their Way

Originally published on Fri August 15, 2014 1:25 pm

Vi Hart YouTube


Tue August 12, 2014
Krulwich Wonders...

Elemental Storytelling

Originally published on Tue August 12, 2014 8:10 pm

Courtesy of Thomas Doyle

There's a photograph I know that shows a kid's bicycle lying on its side, one wheel turned upright, a smear of blood tracing its path on the concrete. There's a little package still latched to the back, waiting for its owner to return. You can see where the bike swerved, then lost its way. Someone's been hurt. Or worse. The blood is still damp, the trail fresh. Whose blood was it? A child's, I imagine — from an accident? A shooting? The photo was taken by Annie Leibovitz during a war in Yugoslavia.

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Thu August 7, 2014