Podcast: A planet beyond Pluto, the bugs in your home, and the link between marijuana and IQ

Science Magazine Podcast

Science Podcast

News, News Commentary, Science

4.3 • 842 Ratings

🗓️ 21 January 2016

⏱️ 18 minutes

🔗️ Recording | iTunes | RSS

🧾️ Download transcript

Summary

Online News Editor David Grimm shares stories on studying marijuana use in teenage twins, building a better maze for psychological experiments, and a close inspection of the bugs in our homes. Science News Writer Eric Hand joins host Sarah Crespi to discuss the potential for a ninth planet in the solar system that circles the sun just once every 15,000 years. [Image: Gilles San Martin/CC BY-SA 2.0] Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

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0:00.0	Introducing Peak Scientific. With over 25 years of expertise, Peak leads the industry in providing
0:06.8	reliable, high purity gas generators for LCMS and GCMS. Whether you're in the lab conducting
0:13.2	groundbreaking research or pushing the boundaries of science, trust Peak Scientific to supply
0:18.7	gas for undisrupted workflows.
0:24.4	When it comes to your LC or G.C, don't settle for less.
0:30.8	Choose the solution that is tested, validated, and approved by leading instrument manufacturers globally. Visit PeekScientific.com and quote Science Podcast to receive special offers.
0:42.7	Thank you. and quote, Science Podcast to receive special offers. Welcome to the Science Podcast for January 22, 2016.
0:47.3	I'm Sarah Crespi.
0:48.9	On this week's show, we have Eric Hand, Science Newswriter.
0:52.1	He's here to talk about an astonishing find, a potential ninth planet in our solar system.
0:58.3	And David Grimm is here with a roundup of daily news stories.
1:04.4	Support for the science podcast is provided by AAAS, the American Association for the Advancement of Science.
1:14.2	Now we have David Grimm, editor for our daily news site.
1:17.5	He's here to talk about some recent online stories.
1:20.0	I'm Sarah Crespi.
1:21.5	First up, we have a story on a twin study that looked at marijuana usage.
1:26.4	Marijuana is a commonly used drug, both recreationally and
1:30.4	medicinally. It's illegal, but is it unhealthy? This has been a tough question to answer so far.
1:36.7	What's been the trouble?
1:37.6	Trouble is that a lot of the stays that have been done so far only look at a single snapshot in
1:42.9	time. So they ask somebody, how much marijuana do you smoke?
1:47.1	And then what's your IQ? And they basically try to compare people who smoke or smoke a lot to people who
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