How to make an Arctic ship ‘vanish,’ and how fast-moving spikes are heating the Sun’s atmosphere

Science Magazine Podcast

Science Podcast

News, News Commentary, Science

4.3 • 842 Ratings

🗓️ 14 November 2019

⏱️ 25 minutes

🔗️ Recording | iTunes | RSS

🧾️ Download transcript

Summary

The Polarstern research vessel will spend 1 year locked in an Arctic ice floe. Aboard the ship and on the nearby ice, researchers will take measurements of the ice, air, water, and more in an effort to understand this pristine place. Science journalist Shannon Hall joins host Sarah Crespi to talk about her time aboard the Polarstern and how difficult these measurements are, when the researchers’ temporary Arctic home is the noisiest, smokiest, brightest thing around. After that icy start, Sarah talks also with Tanmoy Samanta, a postdoctoral researcher at Peking University in Beijing, about the source of the extreme temperature of the Sun’s corona, which can be up to 1 million K hotter than the surface of the Sun. His team’s careful measurements of spicules—small, plentiful, short-lived spikes of plasma that constantly ruffle the Sun’s surface—and the magnetic networks that seem to generate these spikes, suggest a solution to the long-standing problem of how spicules arise and, at the same time, their likely role in the heating of the corona. This week’s episode was edited by Podigy. Ads on this week’s show: Bayer Listen to previous podcasts. About the Science Podcast [Image: Shannon Hall; Music: Jeffrey Cook] Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

Click on a timestamp to play from that location

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.
1:17.6	Welcome to the science podcast for November 15, 2019.
1:23.6	I'm Sarah Crespi. On this week's show, science writer Shannon Hall joins me to talk about
1:28.5	visiting an ice-lock Arctic research vessel and the difficulty of taking measurements in this
1:35.1	pristine environment when you're the noisiest, smokiest, brightest thing around. And I talk with
1:40.8	Tan Boy Samanto about the extreme heat of the sun's corona.
1:45.4	His team might have figured out why the solar atmosphere is a million degrees hotter than the
1:51.3	surface of the sun.
	...

Please login to see the full transcript.

Previous episode | Next episode

Disclaimer: The podcast and artwork embedded on this page are from Science Podcast, and are the property of its owner and not affiliated with or endorsed by Tapesearch.

Generated transcripts are the property of Science Podcast and are distributed freely under the Fair Use doctrine. Transcripts generated by Tapesearch are not guaranteed to be accurate.