...But We Digress - The History of Earth

The Common Descent Podcast

Common Descent

Science, Education, Natural Sciences, Earth Sciences, Science:natural Sciences

4.8 • 896 Ratings

🗓️ 19 July 2017

⏱️ 83 minutes

🔗️ Recording | iTunes | RSS

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Summary

And now for something completely different! Just how deep is Deep Time? Exactly how are important events arranged throughout our planet’s history? Which events are recent and which are ancient? In this special episode, we take a tour through Earth History, from beginning to end, one million years per second: a virtual trip through geologic time! Time markers: Intro & Announcements: 00:00:00Tour Through Time: 00:04:30 Follow and Support us on: Patreon: https://www.patreon.com/commondescentpodcast Twitter: https://twitter.com/CommonDescentPCFacebook: https://www.facebook.com/commondescentpodcast/iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2 Stitcher: http://www.stitcher.com/podcast/common-descent/the-common-descent-podcast The Podcast music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org.

Transcript

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0:00.0	You're listening to the Common Descent Podcast.
0:05.7	But we digress.
0:08.1	Hello, Will.
0:09.1	Hello, David.
0:10.3	Hello, listeners, and welcome to a very special digression of the Common Descent podcast.
0:17.1	Yeah, this is going to be an interesting one.
0:19.3	Now for something completely different.
0:21.9	Episode 12 was all about the geologic timescale, and we talked a lot about where the
0:26.2	timescale comes from and how we determine where things fit on the timescale, but something
0:31.2	that we didn't, you know, we touched on was this notion of just how deep is deep time.
0:38.1	Yes.
0:38.7	What is the scale of the geologic time scale?
0:42.7	Because it's really hard to picture that just by talking about it.
0:46.4	Yes.
0:46.9	And it's, you know, as we mentioned in that episode, we know a lot about more recent things.
0:51.5	So it's hard to imagine where exactly things fit in relation to each other.
0:58.6	You know, it's easy to get this misconception that things happened at the same time, that didn't
1:03.9	happen at the same time, you know, it's hard to get your mind around it.
1:07.5	There are a lot of examples that various geology educators have attempted
1:12.5	to use to demonstrate the scale of the timescale. Probably the most popular one is the calendar.
1:20.3	Yeah, that's when you see most often. You know, the beginning of the earth is at midnight
1:24.9	on January 1st, and the whole Earth history fits into one
	...

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