Folding DNA into teddy bears and getting creative about gun violence research

Folding DNA into teddy bears and getting creative about gun violence research

This week, three papers came out describing new approaches to folding DNA into large complex shapes—20 times bigger than previous DNA sculptures. Staff Writer Bob Service talks with Sarah Crespi about building microscopic teddy bears, doughnuts, and more from genetic material, and using these techniques to push forward fields from materials science to drug delivery. Sarah also interviews Philip Cook of Duke University in Durham, North Carolina, about his Policy Forum on gun regulation research. It’s long been hard to collect data on gun violence in the United States, and Cook talks about how some researchers are getting funding and hard data. He also discusses some strong early results on open-carry laws and links between gun control and intimate partner homicide. Listen to previous podcasts. [Image: : K. WAGENBAUER ET AL., NATURE, VOL. 551, 2017; Music: Jeffrey Cook] Learn more about your ad choices. Visit megaphone.fm/adchoices

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Episoder(642)

The Normals | Episode 1

The Normals | Episode 1

How do we know what's normal in a person? In the early 1950s, the National Institutes of Health (NIH) set out to do something unprecedented. It wanted to start studying normal humans on a grand scale....

7 Apr 23min

Resolving the dispute over the speed of the expanding universe, and seeking new drug targets for cognitive dysfunction

Resolving the dispute over the speed of the expanding universe, and seeking new drug targets for cognitive dysfunction

First up on the podcast, a new path to calculating the Hubble constant. This value for the universe’s speed of expansion is typically determined in one of two ways, one favored by cosmologists, the ot...

2 Apr 33min

Resurrection plants, Project Hail Mary, and the trouble with sycophantic AI

Resurrection plants, Project Hail Mary, and the trouble with sycophantic AI

First up on the podcast, Deputy News Editor Martin Enserink talks about so-called resurrection plants. These specialized plants can survive up to 95% water loss, whereas most plants struggle when thei...

26 Mar 36min

Rethinking the peopling of the Americas, and the best ways to get groundwater back

Rethinking the peopling of the Americas, and the best ways to get groundwater back

First up on the podcast, we discuss a finding that’s likely to reignite debate over how humans first spread through the Americas. In the late 1990s, a site in southern Chile called Monte Verde forced ...

19 Mar 33min

What Alaska’s eroding coastline says about Earth’s future, and how Yellowstone ravens use their smarts to find wolf kills

What Alaska’s eroding coastline says about Earth’s future, and how Yellowstone ravens use their smarts to find wolf kills

First up on the podcast, freelance journalist Evan Howell traveled to Cape Blossom, Alaska, where the receding coastline has revealed an ancient trove of glacial ice that may have survived for 350,000...

12 Mar 42min

An alleged nuclear blast may reignite weapons testing, and who owns the Moon

An alleged nuclear blast may reignite weapons testing, and who owns the Moon

First up on the podcast, a peek into the roiling seas of U.S. science policy. ScienceInsider Editor Jocelyn Kaiser talks about shifting leadership at the National Science Foundation and the Cente...

5 Mar 38min

Tropical birds’ ‘silent spring,’ and mapping people’s brains during surgery

Tropical birds’ ‘silent spring,’ and mapping people’s brains during surgery

First up on the podcast, producer Meagan Cantwell talks to Contributing Correspondent Warren Cornwall about his visit to Brazil, where he observed firsthand what it takes for researchers to understand...

26 Feb 32min

Matching sounds to shapes, and stories from the AAAS annual meeting

Matching sounds to shapes, and stories from the AAAS annual meeting

First up on the podcast, Newsletter Editor Christie Wilcox, Associate Online News Editor Michael Greshko, and intern Perri Thaler share their experiences from the AAAS annual meeting in Phoenix. Chri...

19 Feb 41min

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