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.


Krulwich Wonders...
1:50 pm
Thu June 27, 2013

7 Billion People And Trillions Of Creatures To Be Photographed Together On July 19


Originally published on Tue July 16, 2013 8:40 am

It's going to be a very small picture, but we're all going to be in it. All trillions of us on Earth.

It's not our first group portrait, but Carolyn Porco, the woman in charge, says it's going to be gasp-worthy. She should know. She helped shoot some of the early ones.

What am I talking about?

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Krulwich Wonders...
9:39 am
Tue June 25, 2013

The man with a 'battery operated brain'

Originally published on Tue June 25, 2013 8:49 am

He calls himself the "human with the battery operated brain" because he does, in fact, have electrodes in his head, put there by his New Zealand doctors.

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Krulwich Wonders...
9:00 am
Fri June 21, 2013

Every night you lose more than a pound while you're asleep (for the oddest reason)

Originally published on Mon June 24, 2013 7:21 am

Editor's Note: Robert has added an update to this post. Scroll down to read it.

Here's a simple question: Why do you weigh more when you go to sleep than when you wake up? Because you do. In the video below, you'll see the evidence. You can check this yourself. Somehow, while doing absolutely nothing all night but sleep, you will wake up lighter.

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Krulwich Wonders...
11:28 am
Wed June 19, 2013

The love that dared not speak its name, of a beetle for a beer bottle


Originally published on Thu June 27, 2013 2:35 pm

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Krulwich Wonders...
9:14 am
Mon June 17, 2013

Why men die younger than women: The 'guys are fragile' thesis


Originally published on Tue June 18, 2013 6:53 am

The 19th century just lost its last living man.

Jiroemon Kimura, of Kyotango, Japan, was born in April 1897, lived right through the 20th century and died last Wednesday. He was 116. According to Guinness World Records (which searches for these things), he was the last surviving male born in the 1800s. All the other boys from that century, as best we know, are dead.

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Krulwich Wonders...
11:05 pm
Tue May 28, 2013

Not Winging It, But Ringing It


Originally published on Tue May 28, 2013 9:04 am

Humans do it with smoke.

Dolphins do it with air.

With a little snort, dolphins can produce a nearly perfect "air" rings, (sophisticated non-dolphins called them toroidal vortices) which they turn into underwater toys.

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Krulwich Wonders...
9:14 pm
Sat May 18, 2013

David Foster Wallace Tells Us About Freedom


Originally published on Sat May 18, 2013 8:24 am

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Krulwich Wonders...
7:58 am
Tue May 14, 2013

What Is It About Bees And Hexagons?

Robert Krulwich NPR

Originally published on Thu May 16, 2013 10:26 am

Solved! A bee-buzzing, honey-licking 2,000-year-old mystery that begins here, with this beehive. Look at the honeycomb in the photo and ask yourself: (I know you've been wondering this all your life, but have been too shy to ask out loud ... ) Why is every cell in this honeycomb a hexagon?

Bees, after all, could build honeycombs from rectangles or squares or triangles ...

But for some reason, bees choose hexagons. Always hexagons.

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Krulwich Wonders...
9:58 am
Thu May 9, 2013

Moths that drive cars—no, really!


Originally published on Thu May 9, 2013 7:07 am

What you are about to see — and I'm not making this up — is a moth driving a car.

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Krulwich Wonders...
9:20 am
Fri April 5, 2013

Monty Python's John Cleese almost explains our brains


Originally published on Fri April 5, 2013 7:50 am

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Krulwich Wonders...
12:51 pm
Wed April 3, 2013

Daring, dangerous DIY: Pants with benefits?


Originally published on Wed April 3, 2013 3:34 pm

They are pants. Or maybe we should call them Pants with Benefits. Some of you — especially parents of young teens — will find them totally inappropriate. The folks at find them totally silly, which is why they invented them.

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Krulwich Wonders...
1:37 pm
Wed March 27, 2013

Hear brilliant 9-year-old 'philosopher' explain the world


Originally published on Thu March 28, 2013 9:16 am

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8:41 am
Thu March 14, 2013

Let's get literal: Calculating Pi with pies


Originally published on Thu March 14, 2013 8:39 am

Today is March 14, or "3/14," the first three digits of Pi. It's a day celebrated around the (geek) world as "Pi Day." Pi, of course, is the ratio of the circumference to the diameter of a circle. It was first recorded by Archimedes, but you can replicate his discovery in all kinds of ways.

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11:56 am
Sat January 12, 2013

The oldest rock in the world tells us a story

Steve Munsinger Photo Researchers Inc.

Originally published on Fri January 11, 2013 10:51 am

It's hard to imagine how this teeny little rock — it's not even a whole rock, it's just a grain, a miniscule droplet of mineral barely the thickness of a human hair — could rewrite the history of our planet. But that's what seems to be happening.

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Krulwich Wonders
11:23 am
Wed December 19, 2012

Suddenly there's a meadow in the ocean with 'flowers' everywhere

Courtesy of Matthias Wietz

Originally published on Wed December 19, 2012 10:40 am

It was three, maybe four o'clock in the morning when he first saw them. Grad student Jeff Bowman was on the deck of a ship; he and a University of Washington biology team were on their way back from the North Pole. It was cold outside, the temperature had just dropped, and as the dawn broke, he could see a few, then more, then even more of these little flowery things, growing on the frozen sea.

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