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Science Magazine Podcast

The first midsize black holes, and the environmental impact of global food production

Science Magazine Podcast

Science Podcast

News, News Commentary, Science

4.3 • 842 Ratings

🗓️ 31 May 2018

⏱️ 21 minutes

🧾️ Download transcript

Summary

Astronomers have been able to detect supermassive black holes and teeny-weeny black holes but the midsize ones have been elusive. Now, researchers have scanned through archives looking for middle-size galaxies and found traces of these missing middlers. Host Sarah Crespi and Staff Writer Daniel Clery discuss why they were so hard to find in the first place, and what it means for our understanding of black hole formation. Farming animals and plants for human consumption is a massive operation with a big effect on the planet. A new research project that calculated the environmental impact of global food production shows highly variable results for different foods—and for the same foods grown in different locations. Sarah talks with one of the researchers—Joseph Poore of the University of Oxford in the United Kingdom—about how understanding this diversity can help cut down food production’s environmental footprint and help consumers make better choices. This week’s episode was edited by Podigy. Listen to previous podcasts. [Image: Miltos Gikas/Flickr; Music: Jeffrey Cook] Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

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0:00.0

This podcast is supported by the Icon School of Medicine at Mount Sinai,

0:04.0

the academic arm of the Mount Sinai health system in New York City,

0:07.5

and one of America's leading research medical schools.

0:10.7

What are scientists and clinicians working on to improve medical care and health for women?

0:15.5

Find out in a special supplement to Science magazine prepared by the Icon School of Medicine

0:20.0

and Mount Sinai in partnership

0:21.6

with science. Visit our website at www.combe at www.combe-science.org and search for Frontiers

0:27.0

of Medical Research-Dash-Womeness Health. The Icon School of Medicine at Mount Sinai, we find a way.

0:33.3

Morgan State University, a Baltimore, Maryland-Karnege R2 doctoral research institution,

0:39.2

offers more than 100 academic programs and awards degrees at the baccalaureate,

0:44.0

master's, and doctoral levels, is furthering their mission of growing the future, leading

0:48.7

the world. Morgan continues to address the needs and challenges of the modern urban environment.

0:54.4

With a four-year quadrupling of research, more than a dozen new doctoral programs,

0:59.4

and eight new National Centers of Excellence, Morgan is positioned to achieve Carnegie R1 designation in the next five years.

1:07.4

To learn more about Morgan and their ascension to R1, visit morgan.edu slash research.

1:19.6

Welcome to the science podcast for June 1st, 2018. I'm Sarah Crespi.

1:24.8

In this week's show, staff writer Daniel Clary is here with a story on finding mid-sized black holes. Did you know they were missing? And Joseph Poore is here to talk about his research, toting up the environmental footprint of food production globally and how we can use that information to reduce the footprint.

1:47.2

Now we have Daniel Cleary, staff writer for science, and he's here with a story on missing

1:52.6

medium-sized black holes, or finding missing medium black holes, would you say, Dan?

1:57.9

Yes, I mean, astronomers have been looking for them for decades.

2:02.5

Black holes are notoriously hard to detect because they don't emit any light.

2:07.9

Right.

...

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