Earth May Once Have Had A Ring Like Saturn | An AI For Sand

Science Friday

Science Friday and WNYC Studios

Life Sciences, Wnyc, Science, Earth Sciences, Natural Sciences, Friday

4.5 • 5.5K Ratings

🗓️ 20 September 2024

⏱️ 23 minutes

🔗️ Recording | iTunes | RSS

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Summary

The ring would have gradually fallen to Earth as meteorites, correlating to a spike of impacts seen in the geological record. Also, a new AI tool can judge whether sand came from a beach, a river, a glacial deposit, or a wind-blown dune.

Transcript

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0:00.0	Listen to Support it, WNYC Studios.
0:07.0	Researchers
0:12.0	Researchers built a new AI tool to sort grains of sand. Why? Partly to thwart
0:18.3	sand bandits, of course. Something that the world is going to start having to grapple with or more is where we get
0:24.7	our sand from.
0:26.1	It's Friday, September 20th, and this is Science Friday.
0:31.0	I'm Scifry producer Kathleen Davis.
0:33.4	Though Sand might seem super ordinary and common,
0:37.6	it's one of the most crucial resources
0:39.9	in our modern world, second only in use to water.
0:43.9	Coming up, we'll talk about a new computer model
0:46.4	that can tell if sand is more likely
0:48.8	to have come from a river, a glacier, an ocean beach, or a desert dune, and that could be extended to trace a bucket of
0:56.6	sand to a specific location.
0:59.4	But first, Ira Flato and guest Rachel Feltman round up some of the biggest science stories of the week.
1:06.0	A new study in the journal Nature has found a black hole blasting a massive jet that's
1:12.2	23 million light years long.
1:15.0	That is quite long.
1:16.5	Joining me to talk about this and other top science stories of the week is Rachel
1:19.7	Felman, host of the popular science podcast, the weirdest thing I learned this week based in New York.
1:26.0	Welcome back.
1:27.0	Thanks for having me, Ira.
	...

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