WEBVTT - X Marks the Spot

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<v Speaker 1>Get in touch with technology, with tech stuff from stuff.

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<v Speaker 1>Say that everyone, and welcome to tech stuff. I'm Jonathan

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<v Speaker 1>Strickland and I and today we're going to talk about

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<v Speaker 1>arc archie, archie LOGI. Oh, come on, you've seen you've

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<v Speaker 1>seen Indiana Jones. You know what archaeology is. Oh yeah,

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<v Speaker 1>that's Xbox the Spot. Yeah, okay, that's Pirates. That well,

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<v Speaker 1>I will XP okay, never mind, last crusade, Last crusade,

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<v Speaker 1>I remember it now. Um so yeah, archaeology, of course.

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<v Speaker 1>And we're gonna be talking about not just the technology

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<v Speaker 1>using archaeology. We're going to talk a little bit about

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<v Speaker 1>an overview of what it is and how it evolved

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<v Speaker 1>over time, because that's kind of hand in hand with

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<v Speaker 1>what is going on now in the field of archaeology. Right.

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<v Speaker 1>The technology being used today is some really vance stuff,

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<v Speaker 1>but for a long time that was not the case,

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<v Speaker 1>because archaeology is actually a fairly young field. So I

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<v Speaker 1>guess first we should explain what it is. I suppose sure, Yes,

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<v Speaker 1>it's it's the study of human activity, um, in the past.

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<v Speaker 1>In the past, yeah, not now right, So essentially it's

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<v Speaker 1>it's related to history, it's related to anthropology. Uh, it's

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<v Speaker 1>got some similarities with other disciplines, but this is mainly

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<v Speaker 1>all about studying what human life was like in the past,

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<v Speaker 1>based mostly on the stuff that our ancestors left behind. Well,

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<v Speaker 1>you know, kind of necessarily because what they didn't leave

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<v Speaker 1>behind we have very little record of. Yeah, exactly, we

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<v Speaker 1>can't study what wasn't left behind. That's actually very true,

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<v Speaker 1>not profound, but true. Um. But yeah, So so it's

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<v Speaker 1>a crossover with a lot of other disciplines, and lots

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<v Speaker 1>of other scientists will kind of work hand in hand

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<v Speaker 1>with archaeologists to to promote research for for both of

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<v Speaker 1>their fields. Oh sure, Yeah, it's interdisciplinary, so you can

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<v Speaker 1>have people from multiple disciplines and expertise is coming in

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<v Speaker 1>on a on a single project for multiple reasons, including

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<v Speaker 1>people who might not technically be considered scientists by everyone,

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<v Speaker 1>like a historians or um or artists. Right, yeah, you've

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<v Speaker 1>got you've got a lot of art historians and other

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<v Speaker 1>types of historians as well. In fact, archaeology as a

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<v Speaker 1>discipline kind of straddles the line between science and uh

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<v Speaker 1>a humanity. Uh. And it's sort of because the techniques

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<v Speaker 1>have been evolving over time as well. We're getting to

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<v Speaker 1>a point now where there are some archaeologists are using

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<v Speaker 1>some very high tech, sophisticated techniques, whereas in the past

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<v Speaker 1>it was a lot more well Indiana Jones ish in

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<v Speaker 1>the sense that you were getting down and dirty with it,

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<v Speaker 1>although you were rarely chased by a giant rolling ball

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<v Speaker 1>or uh, you know, things of that nature that that

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<v Speaker 1>we've heard of personally. I mean, I'm sure that someone

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<v Speaker 1>out there, actually I'm not sure at all. Maybe if

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<v Speaker 1>they were lost in a giant game of mouse trap, right,

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<v Speaker 1>that's that's about as close as we can get. Um.

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<v Speaker 1>But okay, So, so the thing is is that Indiana

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<v Speaker 1>Jones was a terrible archaeologist, but it's not his fault.

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<v Speaker 1>He did not have access to all of the tools

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<v Speaker 1>that we have today, as dashing as he was and

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<v Speaker 1>as good as he was with a whip, which sounds

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<v Speaker 1>weird when I say it out loud, that he you know,

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<v Speaker 1>it's it's not his fault. Although a lot of the

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<v Speaker 1>things that you know that we kind of see him

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<v Speaker 1>doing in those films are things that archaeologists, archaeologists have

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<v Speaker 1>done and still do today, especially the predecessors of today's archaeologists. Well,

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<v Speaker 1>I mean, you know, there's still a certain amount of

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<v Speaker 1>digging and brushing a little gently of things a little less. Uh.

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<v Speaker 1>There are fewer examples of um unauthorized tomb rating in

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<v Speaker 1>in established archaeology, which is really, when you get down

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<v Speaker 1>to it, what Indiana Jones was doing. Like if you

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<v Speaker 1>watch that first movie where he's trying to get the

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<v Speaker 1>idol and they being chased off by the indigenous people

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<v Speaker 1>of that jungle that he's in, it's pretty clear he

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<v Speaker 1>did not have full permission to go in there. Well,

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<v Speaker 1>and the entire kind of terrible notion of like it

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<v Speaker 1>this belongs in a museum as opposed to with the

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<v Speaker 1>people who created it is a little bit weird. But um,

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<v Speaker 1>but but that's actually stealing stuff from ancient cultures is

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<v Speaker 1>how archaeology began. Wow, well, I mean shouldn't be a surprise.

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<v Speaker 1>You could argue that chemistry kind of started off with

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<v Speaker 1>people trying to figure out how to make worthless stuff

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<v Speaker 1>into very valuable stuff. Okay, So, so archaeology really originated

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<v Speaker 1>in Europe our circle than fourteen hundreds is when wealthy

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<v Speaker 1>Renaissance collectors started acquiring antiquities from from Greece and Rome

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<v Speaker 1>as art rather than artifacts. They weren't really interested in

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<v Speaker 1>the history of these items. They were like, this is

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<v Speaker 1>pretty I wanted in my house. Yeah, this is very

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<v Speaker 1>typical of the Renaissance, I mean Renaissance. Of course, the

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<v Speaker 1>whole Rebirth it was mostly about how Europe kind of

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<v Speaker 1>rediscovered this amazing civilization that existed a thousand years earlier.

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<v Speaker 1>But for between the time of the Fall of Rome

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<v Speaker 1>and uh and the Renaissance, there was a whole lot

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<v Speaker 1>of We're gonna just concentrate on not getting killed by

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<v Speaker 1>all those other people out there. And this is to

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<v Speaker 1>the point where they're finally saying, hey, look, we're smart,

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<v Speaker 1>but there were smart people a long time ago to

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<v Speaker 1>their stuff, and let's stop burning books, read them instead.

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<v Speaker 1>Crazy um and and so some of these wealthy collectors

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<v Speaker 1>even even wrote really expansive travelogs and guides to ruins

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<v Speaker 1>to you know, tell their fellow rich people how to

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<v Speaker 1>go rob right. So again it still was not a

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<v Speaker 1>way of documenting something for a historical record. It was

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<v Speaker 1>more of guys, I found the best antique small. Uh,

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<v Speaker 1>you just have to break in there and take whatever

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<v Speaker 1>you want, and it's all old and awesome. Yeah, and

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<v Speaker 1>eventually even bigger patrons of the arts as as much

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<v Speaker 1>as they were got into us, have been this and

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<v Speaker 1>drove really large excavations, um like the initial digs at

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<v Speaker 1>Pompeii Um, which was both victimized and preserved by Vesuvius's

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<v Speaker 1>explosion and what like circle like seventy nine CE. I've

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<v Speaker 1>been there, by the way. Yeah, fascinating place, absolutely, and

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<v Speaker 1>you can see where things have been perfectly preserved after

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<v Speaker 1>there were excavations where things have been buried with ash

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<v Speaker 1>and things of that nature. And it is amazing. All

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<v Speaker 1>those early excavations were due to basically the Queen of

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<v Speaker 1>Naples saying I want some statues, go get some from

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<v Speaker 1>that place. And I hear that the famous not actually

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<v Speaker 1>short Napoleon Bonaparte was interested in this kind of thing too.

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<v Speaker 1>He was of average height for his time, in fact,

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<v Speaker 1>not just for his time. I think it was like

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<v Speaker 1>five ft seven or five ft eight, so it was

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<v Speaker 1>actually six or five seven. Yeah, so a little bit

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<v Speaker 1>short for now, but totally average for the time. It's

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<v Speaker 1>a whole inconsistency in uh in English, Yeah, exact leads.

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<v Speaker 1>It's uh. That's another podcast and stuff you missed in

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<v Speaker 1>history class I'm sure has covered it, but at any rate, right, No,

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<v Speaker 1>So when he invaded Egypt in seventeen, he brought a

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<v Speaker 1>group of a hundred and seventy five scholars that we're

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<v Speaker 1>calling themselves the Institute of Egypt UM. And they came

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<v Speaker 1>with like a traveling library, scientific tools, measuring instruments, and

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<v Speaker 1>they published this huge illustrated tome called Description of Egypt.

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<v Speaker 1>I'm assuming the title was originally in French UM, but uh.

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<v Speaker 1>And and that helped launch kind of the first wave

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<v Speaker 1>of egypt Mania in the in the West. And we're

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<v Speaker 1>starting to see here actual scholarly work being applied to this,

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<v Speaker 1>as opposed to just I like this, I like the

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<v Speaker 1>stuff that these people made, get it for me. So

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<v Speaker 1>now we're starting to see this develop, at least informally,

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<v Speaker 1>into more of a scholarly discipline as opposed to to

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<v Speaker 1>tomb robbing. Right. Meanwhile, lots of other scholarly disciplines were advancing.

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<v Speaker 1>Geology and biology were both coming into their own. UM.

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<v Speaker 1>Charles L. Really helps spread UM this this modern geologic

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<v Speaker 1>system of uniformitarian stratigraphy UM. And this gave archaeologists a

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<v Speaker 1>kind of time scale on which date items based on sediment,

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<v Speaker 1>and that along with Charles Darwin's Origin of Species um

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<v Speaker 1>popularized evolution and and allowed prehistoric archaeology to actually become

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<v Speaker 1>a thing where people could actually look for uh, for

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<v Speaker 1>examples of prehistoric civilizations by the stuff they left behind.

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<v Speaker 1>And because of this other these other disciplines, they could

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<v Speaker 1>start to at least give a range of dates for

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<v Speaker 1>when those civilizations may have been active. Now, in these

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<v Speaker 1>early days, that range was not very precise, right, you

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<v Speaker 1>could coute not like when you're talking about geologic ages. Obviously,

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<v Speaker 1>mankind has only been around for a very tiny fraction

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<v Speaker 1>of a geologic age, so your your precision is pretty

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<v Speaker 1>touch and go. But it could still at least give

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<v Speaker 1>some indication as to how old any particular finding would be.

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<v Speaker 1>And that was sort of the footholds of modern archaeology. Yeah,

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<v Speaker 1>and and we'll get a little bit into some of

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<v Speaker 1>those some of those geologic methods in just a minute.

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<v Speaker 1>But um uh Meanwhile, I think the real founding of

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<v Speaker 1>archaeology as a science was when Flinders Petrie published Methods

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<v Speaker 1>and Aims in Archaeology in nineteen o four, and that

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<v Speaker 1>described a systematic method for excavation that was that was

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<v Speaker 1>the basis I mean, it's kind of sort of a

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<v Speaker 1>little bit still the basis of how people go about

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<v Speaker 1>go about a dig and making sure that everything is

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<v Speaker 1>well documented and laid out in a way that you

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<v Speaker 1>can take enough notes and gather enough data. Because okay,

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<v Speaker 1>archaeology is a destructive science. Necessarily, as you're taking apart

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<v Speaker 1>a site, you are you are taking it apart. It's

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<v Speaker 1>not going to be the way that it was ever again.

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<v Speaker 1>It's it's the same thing for for crime scene forensics.

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<v Speaker 1>You know, it's and in the investigation of where everything

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<v Speaker 1>was and how it is laid out, you have to

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<v Speaker 1>move it around right, So you have to you have

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<v Speaker 1>to take a lot of really exhaustive initial measurements without

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<v Speaker 1>without disturbing as much as you possibly can, and then

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<v Speaker 1>you progressively get more and more involved. That's why those

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<v Speaker 1>notes are so important, because three or four steps down

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<v Speaker 1>the line is not going to resemble what it did

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<v Speaker 1>when you first got there. And uh in the United

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<v Speaker 1>States again early in the nineteen hundreds realized this and

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<v Speaker 1>passed the Antiquities Act, which prohibits the excavation or destruction

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<v Speaker 1>of archaeological materials on any kind of government land. And

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<v Speaker 1>I think that that's the point at which we have

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<v Speaker 1>like legal documentation that archaeology was a science. Yeah, so

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<v Speaker 1>this is that they're saying, there are people who will

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<v Speaker 1>be uh certified and ratified and allowed to do this

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<v Speaker 1>sort of stuff. Everyone else, keep your grubby myths off it, right,

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<v Speaker 1>That's essentially the message. And then just a little bit

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<v Speaker 1>further on, in the nineteen hundreds, archaeology became really popularized

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<v Speaker 1>through some huge discoveries like King Tut's tomb um, the

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<v Speaker 1>Sumerian royal tombs that are you know, these are huge

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<v Speaker 1>newspaper headline inducing kind of digs and and that's kind

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<v Speaker 1>of where we get the sort of pulp novels that

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<v Speaker 1>led to Indiana Jones right exactly. This this kind of

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<v Speaker 1>led to this sort of exotic you know, the heroic

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<v Speaker 1>explorer who is uncovering uh, you know, history itself and

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<v Speaker 1>discovering stuff that was long thought to have been gone forever.

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<v Speaker 1>And that that's a very romanticized version of what an

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<v Speaker 1>archaeologist really does. I think any archaeologist who has done

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<v Speaker 1>a lot of field work would be like, look, I

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<v Speaker 1>obviously love what I do and I am passionate about it. However,

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<v Speaker 1>most of the time, I'm not running around fighting bad

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<v Speaker 1>guys for access to precious historical artifacts. There's very few

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<v Speaker 1>saving hot babes involved. I mean, I would imagine probably

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<v Speaker 1>not as much whipping at least. I'm gonna leave the

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<v Speaker 1>rest of that alone. So at any rate, um, at

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<v Speaker 1>any rate, do we have time for something about Nazis?

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<v Speaker 1>We have to talk about this, okay, okay, So speaking

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<v Speaker 1>of Indiana Jones, the Nazis totally had a thing for archaeology.

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<v Speaker 1>I mean, this is a super legit story. I mean,

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<v Speaker 1>Indiana Jones is not a super legit story, but except

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<v Speaker 1>behind it, Yeah, the idea that Indiana Jones was competing

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<v Speaker 1>against Nazis to get access to certain things has a

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<v Speaker 1>basis and historical fact. Yes, um, Chuck wrote a really

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<v Speaker 1>good chuck of course of stuff you should know. Yeah,

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<v Speaker 1>it's a little show. You might, Yeah you might. You

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<v Speaker 1>might have listened to it once or twice. Has a

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<v Speaker 1>great article on how stuff works called what did the

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<v Speaker 1>Nazis have to do with Archaeology? And uh and and

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<v Speaker 1>plumbed directly from that. So part of Hitler's entire plan um,

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<v Speaker 1>you know, as of his swearing in in ninety three,

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<v Speaker 1>was aligning the curriculum of German universities with the interests

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<v Speaker 1>of the Nazi Party, which we kind of touched on

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<v Speaker 1>in our Heisenberg episode where off about physics. Yeah yeah, um.

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<v Speaker 1>And this was including the idea that their Germanic people

0:13:05.040 --> 0:13:09.000
<v Speaker 1>were descendants of this original Aryan master race. So he

0:13:09.040 --> 0:13:12.440
<v Speaker 1>sent teams of archaeologists excavate sites around the world that

0:13:12.480 --> 0:13:15.240
<v Speaker 1>he believed would help back up this theory. So in

0:13:15.240 --> 0:13:18.520
<v Speaker 1>other words, he's searching for evidence to prove the philosophy

0:13:18.640 --> 0:13:21.520
<v Speaker 1>that he was he was writing at the time. Yes,

0:13:21.840 --> 0:13:25.439
<v Speaker 1>uh it failed, yeah a lot, basically, um, I mean.

0:13:25.520 --> 0:13:28.160
<v Speaker 1>And and they put they put a huge budget into this,

0:13:28.400 --> 0:13:33.160
<v Speaker 1>uh Himmler himself led a group called the Ancestral Heritage

0:13:33.200 --> 0:13:37.160
<v Speaker 1>Research and Teaching Society that went everywhere looking for this history.

0:13:37.360 --> 0:13:40.800
<v Speaker 1>Um that They also you know, dug up part of Poland,

0:13:41.080 --> 0:13:43.480
<v Speaker 1>hoping to prove that the Germans had lived there first

0:13:43.520 --> 0:13:46.160
<v Speaker 1>and had legit claim to the land after, you know,

0:13:46.240 --> 0:13:50.040
<v Speaker 1>after they invaded again, trying to search for evidence to

0:13:50.160 --> 0:13:54.439
<v Speaker 1>justify their actions. So not a not a bright chapter

0:13:54.480 --> 0:13:58.559
<v Speaker 1>in human history, obviously, but another example of how archaeology

0:13:58.720 --> 0:14:02.920
<v Speaker 1>was becoming a really important field of study. So let's

0:14:02.960 --> 0:14:07.800
<v Speaker 1>talk about some of the tools that are important for archaeologists,

0:14:07.800 --> 0:14:10.000
<v Speaker 1>things that that they rely on, and we should go

0:14:10.000 --> 0:14:12.600
<v Speaker 1>ahead and say maybe I should have said this earlier.

0:14:12.800 --> 0:14:15.040
<v Speaker 1>This is gonna be a two part episode. This first

0:14:15.040 --> 0:14:17.080
<v Speaker 1>part we're looking at some of the basic tools and

0:14:17.200 --> 0:14:21.560
<v Speaker 1>just the basic philosophies that guide archaeology and in um.

0:14:21.560 --> 0:14:24.320
<v Speaker 1>In our next episode, we're going to dive into more

0:14:24.440 --> 0:14:27.680
<v Speaker 1>detail about some of the more high tech tools that

0:14:27.720 --> 0:14:30.800
<v Speaker 1>have become more available recently. We'll get a little bit

0:14:30.840 --> 0:14:33.200
<v Speaker 1>into some of the high tech sort of science that

0:14:33.360 --> 0:14:37.400
<v Speaker 1>has that that from mid century has started to to

0:14:37.480 --> 0:14:41.800
<v Speaker 1>really develop how we can evaluate archaeological digs. Right, So

0:14:42.280 --> 0:14:44.880
<v Speaker 1>starting with the hand tools, the basic hand tools. Now,

0:14:45.040 --> 0:14:49.000
<v Speaker 1>keep in mind, archaeology is something where often we're looking

0:14:49.080 --> 0:14:53.160
<v Speaker 1>for evidence that has been at least partially, if not entirely,

0:14:53.240 --> 0:14:58.080
<v Speaker 1>covered up by soil and rocks and often sand, Like

0:14:58.080 --> 0:15:01.080
<v Speaker 1>when we're talking about the the Egyptian digs, they are

0:15:01.400 --> 0:15:04.760
<v Speaker 1>usually it's things that after hundreds of years, have been

0:15:04.800 --> 0:15:08.160
<v Speaker 1>covered up by by sand. So a lot of the

0:15:08.200 --> 0:15:11.520
<v Speaker 1>tools are basic hand tools meant to remove that kind

0:15:11.520 --> 0:15:13.960
<v Speaker 1>of stuff. Like, you don't want to get too many big,

0:15:14.000 --> 0:15:19.680
<v Speaker 1>heavy right, because you could just inadvertently damage very stuff

0:15:19.720 --> 0:15:23.040
<v Speaker 1>that you're looking for. So, but you do get some

0:15:23.080 --> 0:15:25.680
<v Speaker 1>stuff that is pretty heavy duty for hand tools. I mean,

0:15:25.720 --> 0:15:28.440
<v Speaker 1>it's not all like a very light brush where you

0:15:28.440 --> 0:15:30.840
<v Speaker 1>can gently brush the dirt away. Right. Well, that's by

0:15:30.880 --> 0:15:32.520
<v Speaker 1>the time you get down to something that you that

0:15:32.600 --> 0:15:35.760
<v Speaker 1>you suspect might be an artifact, you're going to use

0:15:35.840 --> 0:15:38.640
<v Speaker 1>a very gentle brush. But until then, it's time to

0:15:38.680 --> 0:15:41.480
<v Speaker 1>put your back into it. So you've got some pick axes,

0:15:41.560 --> 0:15:45.880
<v Speaker 1>some shovels, hose, yeah, maddox. Maddox are tools that are

0:15:45.960 --> 0:15:48.840
<v Speaker 1>used to break up hard ground. So any of my

0:15:49.200 --> 0:15:52.720
<v Speaker 1>fellow farmer folks out there, I say fellow farmer folk

0:15:52.760 --> 0:15:54.320
<v Speaker 1>because as a kid, I used to have to do

0:15:54.360 --> 0:15:56.360
<v Speaker 1>this kind of stuff. I had no idea what that

0:15:56.400 --> 0:15:59.000
<v Speaker 1>thing is. Yeah, it's no, it's a hand tool. Use

0:15:59.080 --> 0:16:01.720
<v Speaker 1>it to break up hard ground. It's you know, if

0:16:01.720 --> 0:16:03.640
<v Speaker 1>if the shovel is not going to do it because

0:16:03.880 --> 0:16:05.400
<v Speaker 1>the ground is too hard, you bring in a mannequin,

0:16:05.520 --> 0:16:07.160
<v Speaker 1>you break it up, and then you use the shovel.

0:16:07.800 --> 0:16:09.960
<v Speaker 1>It just means making more work for yourself down the line.

0:16:10.200 --> 0:16:11.920
<v Speaker 1>Of course, you know, you have to have something to

0:16:11.960 --> 0:16:15.680
<v Speaker 1>move that stuff all the all the spoil away, right,

0:16:16.400 --> 0:16:20.240
<v Speaker 1>buckets and wheelbarrows, getting I mean, we're talking about lots

0:16:20.280 --> 0:16:23.680
<v Speaker 1>of physical labor here. Eventually you might get down to

0:16:23.720 --> 0:16:26.840
<v Speaker 1>a point where you're using something along the lines of

0:16:26.880 --> 0:16:29.520
<v Speaker 1>a trowel instead of a shovel, because you want to

0:16:29.560 --> 0:16:32.920
<v Speaker 1>be a little more precise. Perhaps you're starting to see

0:16:32.960 --> 0:16:35.280
<v Speaker 1>what could be the outline of perhaps like a wall

0:16:35.600 --> 0:16:39.360
<v Speaker 1>of a settlement, Sure, or even maybe encounter fragments of

0:16:39.400 --> 0:16:41.240
<v Speaker 1>pottery or something like that that you want to kind

0:16:41.240 --> 0:16:44.240
<v Speaker 1>of scoop up in preserve. Sure, and uh, of course

0:16:44.520 --> 0:16:46.440
<v Speaker 1>we'll talk about it more in the second half of

0:16:46.480 --> 0:16:49.200
<v Speaker 1>this episode. You want to be really careful about what

0:16:49.280 --> 0:16:52.720
<v Speaker 1>kind of contact you make with this stuff, right, because

0:16:52.920 --> 0:16:55.200
<v Speaker 1>some of the processes that you can use to identify

0:16:55.440 --> 0:17:00.000
<v Speaker 1>or to date these objects can be thrown off by

0:17:00.080 --> 0:17:02.680
<v Speaker 1>by human touch. Yeah, you could actually corrupt your own

0:17:02.800 --> 0:17:05.720
<v Speaker 1>data just by picking something up, So it's really important

0:17:05.720 --> 0:17:08.720
<v Speaker 1>to try and maintain that distance. On top of that,

0:17:08.840 --> 0:17:11.159
<v Speaker 1>of course, you do have the brushes to brush away

0:17:11.600 --> 0:17:13.960
<v Speaker 1>extra dirt. Other things that you might use to get

0:17:14.000 --> 0:17:17.400
<v Speaker 1>some dirt and and and sentiment off of an artifact

0:17:17.400 --> 0:17:21.800
<v Speaker 1>include dental tools, So you can use these little like

0:17:21.800 --> 0:17:24.320
<v Speaker 1>like dental picks to get to get dirt out of

0:17:24.359 --> 0:17:27.199
<v Speaker 1>grooves and things like that. Uh So, so you know,

0:17:27.359 --> 0:17:29.760
<v Speaker 1>a lot of the reason why these early tools were

0:17:29.880 --> 0:17:33.399
<v Speaker 1>very general purpose or were repurposed from other disciplines was

0:17:33.440 --> 0:17:37.240
<v Speaker 1>because again archaeology was a young science and so not

0:17:37.320 --> 0:17:39.919
<v Speaker 1>a lot of work had been had gone into developing

0:17:39.920 --> 0:17:43.880
<v Speaker 1>tools specifically for archaeology. Early on, they were essentially using

0:17:43.920 --> 0:17:47.679
<v Speaker 1>whatever else would do the job they needed done and

0:17:47.760 --> 0:17:50.200
<v Speaker 1>repurposing it. And and and I mean that still happens.

0:17:50.240 --> 0:17:52.439
<v Speaker 1>I've heard about people using you know, like pen knives

0:17:52.440 --> 0:17:54.720
<v Speaker 1>and chopsticks in the field, whatever happens to be lying

0:17:54.760 --> 0:17:57.320
<v Speaker 1>around it tends to be one of those things where

0:17:57.400 --> 0:17:59.879
<v Speaker 1>you know, there are tools out there that do the

0:18:00.080 --> 0:18:02.280
<v Speaker 1>ub really well. So there's not a whole demand to

0:18:02.320 --> 0:18:06.119
<v Speaker 1>start developing things specifically for archaeology. Doesn't mean that there

0:18:06.119 --> 0:18:08.960
<v Speaker 1>aren't companies that do it. There are, But you know,

0:18:09.359 --> 0:18:13.040
<v Speaker 1>if you're like, well, this is a relatively inexpensive tool

0:18:13.119 --> 0:18:14.840
<v Speaker 1>I can get that will do what I needed to do,

0:18:15.040 --> 0:18:17.520
<v Speaker 1>let's go with that. On top of that, you have things,

0:18:17.760 --> 0:18:21.200
<v Speaker 1>you know, like basic tools like line levels and plumbobs,

0:18:21.200 --> 0:18:23.440
<v Speaker 1>which you use to try and make sure that if

0:18:23.440 --> 0:18:26.040
<v Speaker 1>you're using other types of equipment that require level ground

0:18:26.080 --> 0:18:29.240
<v Speaker 1>that you're you've got that straight and we'll talk about

0:18:29.280 --> 0:18:31.359
<v Speaker 1>in the second episode. I'm so excited. Also for for

0:18:31.480 --> 0:18:35.600
<v Speaker 1>surveying purposes, are important tape measures obviously if you need

0:18:35.640 --> 0:18:40.080
<v Speaker 1>to start determining things like the size of a particular

0:18:41.119 --> 0:18:44.840
<v Speaker 1>artifact area or maybe it's even a house or a wall. Again,

0:18:45.240 --> 0:18:47.680
<v Speaker 1>these are things where you know you're gonna take these measurements,

0:18:47.760 --> 0:18:49.720
<v Speaker 1>that you can write all this stuff down as early

0:18:49.760 --> 0:18:51.600
<v Speaker 1>as you possibly can, so you can you can start

0:18:51.640 --> 0:18:57.040
<v Speaker 1>to form that image of what this site looked like originally,

0:18:57.119 --> 0:19:01.280
<v Speaker 1>you know, hundreds or perhaps even thousands of years ago. So, uh,

0:19:01.359 --> 0:19:04.679
<v Speaker 1>interesting little tidbit I did not know until we started

0:19:04.720 --> 0:19:08.320
<v Speaker 1>to research this podcast. It turns out there are two

0:19:08.359 --> 0:19:12.359
<v Speaker 1>different styles of measuring depending upon the nature of the

0:19:12.400 --> 0:19:15.080
<v Speaker 1>site you're looking at. If you're looking at a prehistoric site,

0:19:15.640 --> 0:19:19.280
<v Speaker 1>you measure using the metric system, because that's what science does. Yeah,

0:19:19.400 --> 0:19:22.120
<v Speaker 1>metric system is easy, right, I mean, it makes sense,

0:19:22.160 --> 0:19:26.600
<v Speaker 1>everything's in tens or hundreds, easy to deal with. Here

0:19:26.600 --> 0:19:29.879
<v Speaker 1>in America, that's not necessarily good enough. You know, we

0:19:29.920 --> 0:19:32.399
<v Speaker 1>don't like our you don't like our measurements to be easy. No,

0:19:32.640 --> 0:19:36.240
<v Speaker 1>that's ridiculous, would be silly. So here's the thing. Anything

0:19:36.280 --> 0:19:41.000
<v Speaker 1>that's of a historical time period, so prehistory versus history,

0:19:41.200 --> 0:19:45.280
<v Speaker 1>historical time period stuff tends to be measured using English

0:19:45.400 --> 0:19:49.080
<v Speaker 1>standard measure units like inches and feet because that's what

0:19:49.200 --> 0:19:51.320
<v Speaker 1>the people of the time we're using when they were

0:19:51.320 --> 0:19:54.400
<v Speaker 1>building their stuff. Yeah, yeah, I mean especially here here

0:19:54.440 --> 0:19:57.679
<v Speaker 1>in the West, I I would imagine, and for most

0:19:57.880 --> 0:20:01.440
<v Speaker 1>ranges of history. Yeah, certain ranges of history, right, and

0:20:01.640 --> 0:20:04.200
<v Speaker 1>in other parts of the world where the English measuring

0:20:04.240 --> 0:20:08.359
<v Speaker 1>system would not have been introduced, then it's a little different.

0:20:08.920 --> 0:20:10.920
<v Speaker 1>But yeah, if you're if you're researching let's say you're

0:20:10.920 --> 0:20:15.480
<v Speaker 1>researching a an ancient Roman establishment in in in Britain

0:20:15.840 --> 0:20:20.359
<v Speaker 1>because the Romans had had Britain and you wanted to

0:20:20.400 --> 0:20:23.120
<v Speaker 1>measure that, then uh, you know, that might be one

0:20:23.160 --> 0:20:25.440
<v Speaker 1>set of standards. And then let's say that you're looking

0:20:25.480 --> 0:20:28.919
<v Speaker 1>at maybe it's something from the Middle Ages in Britain,

0:20:29.240 --> 0:20:31.639
<v Speaker 1>that would be a different set. So you know, it

0:20:31.680 --> 0:20:34.480
<v Speaker 1>all depends. But it's it's interesting to me that in general,

0:20:35.000 --> 0:20:38.440
<v Speaker 1>the prehistoric is in metric and the historic sites are

0:20:38.520 --> 0:20:41.520
<v Speaker 1>in English standard. So yeah, I didn't know that either.

0:20:41.600 --> 0:20:44.880
<v Speaker 1>That's some complicated and fascinating. Yeah, I wonder if there are.

0:20:44.960 --> 0:20:46.840
<v Speaker 1>I'm sure there are. I mean, there have to be

0:20:46.920 --> 0:20:51.080
<v Speaker 1>archaeologists who specialize in in certain types, but it makes

0:20:51.080 --> 0:20:55.120
<v Speaker 1>me wonder what their dinner parties are like. Um. There

0:20:55.119 --> 0:20:58.160
<v Speaker 1>are other tools that are often used, things like calipers,

0:20:58.240 --> 0:21:00.719
<v Speaker 1>obviously to be able to pick things up without actually

0:21:00.760 --> 0:21:04.240
<v Speaker 1>touching them yourself. But also there's a tool called a

0:21:04.359 --> 0:21:09.840
<v Speaker 1>soil core, which is fairly unique to archaeology. I mean,

0:21:09.880 --> 0:21:12.600
<v Speaker 1>you can use it in geology too, but a soil

0:21:12.680 --> 0:21:16.560
<v Speaker 1>core is essentially a imagine a metal tube And what

0:21:16.600 --> 0:21:18.679
<v Speaker 1>you do with the smell tube is you shove it

0:21:18.680 --> 0:21:21.480
<v Speaker 1>into the ground and then you yank it back out

0:21:21.480 --> 0:21:25.200
<v Speaker 1>again and it pulls out a soil sample. Yeah, exactly.

0:21:25.200 --> 0:21:28.280
<v Speaker 1>And then you look at the stuff what you pulled out,

0:21:28.880 --> 0:21:31.720
<v Speaker 1>and you look to see if there's any evidence for artifacts,

0:21:31.800 --> 0:21:34.240
<v Speaker 1>organic matter, that kind of thing that could indicate the

0:21:34.280 --> 0:21:38.240
<v Speaker 1>presence of human settlement or whatever. And if you find it,

0:21:38.280 --> 0:21:40.000
<v Speaker 1>then that gives you an idea of all right, well,

0:21:40.000 --> 0:21:42.560
<v Speaker 1>this is definitely an area we need to look at

0:21:42.560 --> 0:21:44.879
<v Speaker 1>when we're doing our excavation. If you're you know, you

0:21:44.920 --> 0:21:47.040
<v Speaker 1>might be doing a few you would do lots of

0:21:47.080 --> 0:21:51.600
<v Speaker 1>soil samples obviously, but it might help you determine all right,

0:21:51.600 --> 0:21:53.560
<v Speaker 1>I think we're beyond the border now because none of

0:21:53.560 --> 0:21:57.800
<v Speaker 1>these core samples are coming back with anything, or maybe

0:21:57.800 --> 0:21:59.680
<v Speaker 1>that you're in a different area and you're thinking, oh,

0:22:00.040 --> 0:22:02.840
<v Speaker 1>settlement is actually larger than we first anticipated, because we're

0:22:02.880 --> 0:22:04.680
<v Speaker 1>actually finding quite a bit of stuff over here. It's

0:22:04.720 --> 0:22:06.960
<v Speaker 1>just that everything has overgrown to the point where we

0:22:07.080 --> 0:22:10.280
<v Speaker 1>never would have suspected it otherwise. So it's really cool stuff.

0:22:10.520 --> 0:22:13.959
<v Speaker 1>So those are your basic hand tools, right, the stuff

0:22:14.000 --> 0:22:18.280
<v Speaker 1>that that archaeologists have been using in one form or

0:22:18.320 --> 0:22:22.000
<v Speaker 1>another for decades. You know, some some of these, some

0:22:22.080 --> 0:22:25.560
<v Speaker 1>of these are as old as as people going into

0:22:25.720 --> 0:22:30.000
<v Speaker 1>tombs to rob them. But so that kind of covers

0:22:30.040 --> 0:22:32.280
<v Speaker 1>the basic hand tools, you know, the stuff that in

0:22:32.440 --> 0:22:35.000
<v Speaker 1>some form or another has been around for like decades

0:22:35.160 --> 0:22:37.879
<v Speaker 1>or hundreds of years. And yeah, if you've been tomb

0:22:37.960 --> 0:22:40.280
<v Speaker 1>robbing this whole time, you probably used to shovel at

0:22:40.320 --> 0:22:43.760
<v Speaker 1>some point. And and technically shovels and brushes are technology,

0:22:43.960 --> 0:22:47.159
<v Speaker 1>Yeah they are. I mean we talk about how you know,

0:22:47.200 --> 0:22:49.560
<v Speaker 1>a lot of tech stuff is all about the higher

0:22:49.640 --> 0:22:53.520
<v Speaker 1>text things, but electron that we we do tend to

0:22:53.640 --> 0:22:57.840
<v Speaker 1>like every now and then revisit stuff that's older technology.

0:22:57.920 --> 0:22:59.680
<v Speaker 1>And while you know, on the face of it we

0:22:59.760 --> 0:23:02.840
<v Speaker 1>might dismiss it as it's just a tool, at one

0:23:02.920 --> 0:23:06.760
<v Speaker 1>time that was a world altering technology. So yeah, I

0:23:06.920 --> 0:23:10.680
<v Speaker 1>can imagine that for early farmers, shovels were pretty pretty big.

0:23:10.800 --> 0:23:14.120
<v Speaker 1>Yeah yeah, Okay, so we've got those basic tools out

0:23:14.119 --> 0:23:16.879
<v Speaker 1>of the way, and before we move on, let's just

0:23:16.960 --> 0:23:20.600
<v Speaker 1>take a really quick break to thank our sponsor. All right,

0:23:20.680 --> 0:23:24.160
<v Speaker 1>and we're back. So now we've talked about the basic tools,

0:23:24.960 --> 0:23:26.960
<v Speaker 1>all right, Lauren, let me let me give you a

0:23:27.000 --> 0:23:30.679
<v Speaker 1>little scenario. All right, Let's say that I have joined

0:23:30.680 --> 0:23:33.560
<v Speaker 1>an archaeological dig. Perhaps I've got one of those sort

0:23:33.600 --> 0:23:36.400
<v Speaker 1>of eco tourism type things going on, or maybe I've

0:23:36.440 --> 0:23:39.639
<v Speaker 1>taken a class or something, or I don't know, maybe

0:23:39.760 --> 0:23:42.000
<v Speaker 1>my brain has been swapped with someone way smarter than

0:23:42.040 --> 0:23:44.080
<v Speaker 1>I am, and I've gone out and I've done this

0:23:44.200 --> 0:23:47.680
<v Speaker 1>archaeological dig and I found something and it looks really neat.

0:23:48.240 --> 0:23:52.960
<v Speaker 1>How do I tell how old it is? Well, okay,

0:23:53.000 --> 0:23:56.560
<v Speaker 1>Historically we relied on things like self dating, you know,

0:23:56.600 --> 0:23:59.199
<v Speaker 1>like like some items like coins will be stamped with

0:23:59.240 --> 0:24:02.800
<v Speaker 1>a date, which is that's handy more or less reliable

0:24:02.920 --> 0:24:06.640
<v Speaker 1>as soon as assuming you know what the indigenous people's

0:24:06.800 --> 0:24:09.880
<v Speaker 1>dating system was, yes, and assuming that you can read

0:24:09.920 --> 0:24:14.639
<v Speaker 1>it clearly, and that they weren't lying right right, you know,

0:24:14.680 --> 0:24:17.080
<v Speaker 1>that could have been backdating their coins. I know, I

0:24:17.119 --> 0:24:20.520
<v Speaker 1>hate it when that happens. Um. And and also relative dating,

0:24:20.520 --> 0:24:23.520
<v Speaker 1>which is extrapolating the date of unknown items from the

0:24:23.640 --> 0:24:27.760
<v Speaker 1>known dates of self dated items. Right. So in other words,

0:24:27.800 --> 0:24:30.760
<v Speaker 1>you might be like you might think along the lines of, well,

0:24:30.800 --> 0:24:34.200
<v Speaker 1>this this settlement existed as far as we can tell

0:24:34.520 --> 0:24:37.280
<v Speaker 1>two hundreds something years before this other one did, and

0:24:37.320 --> 0:24:39.160
<v Speaker 1>we know the dates of this other one, so from

0:24:39.200 --> 0:24:41.960
<v Speaker 1>that we're going to extrapolate a lot of information, all right,

0:24:42.000 --> 0:24:45.040
<v Speaker 1>But that's also not always reliable because I mean, because

0:24:45.040 --> 0:24:47.840
<v Speaker 1>sediment patterns can change over the years. Um, you know,

0:24:48.040 --> 0:24:50.960
<v Speaker 1>looting and other explorations of the site could have moved

0:24:50.960 --> 0:24:54.959
<v Speaker 1>stuff around or left more more recent things with older things.

0:24:55.040 --> 0:24:58.360
<v Speaker 1>And it really only works for for items about five

0:24:58.359 --> 0:25:01.600
<v Speaker 1>thousand years back for for you know, recorded history, right,

0:25:01.840 --> 0:25:03.639
<v Speaker 1>So if you're wanting to look at stuff all the

0:25:03.680 --> 0:25:07.960
<v Speaker 1>way from the Stone Age, then that's not gonna cut it. No. However,

0:25:08.040 --> 0:25:11.000
<v Speaker 1>around the eighteen hundreds or so, um, if if you

0:25:11.040 --> 0:25:14.800
<v Speaker 1>were finding old stuff, you could start using things like

0:25:15.000 --> 0:25:18.040
<v Speaker 1>like clave arf, counting clave ARFs being an annual layer

0:25:18.080 --> 0:25:21.600
<v Speaker 1>of sedimentary rock that's created during wet and dry seasons

0:25:21.640 --> 0:25:25.359
<v Speaker 1>each year. Wow. So this is almost like a geological

0:25:25.560 --> 0:25:29.120
<v Speaker 1>version of tree rings, but it's just depending upon those

0:25:29.160 --> 0:25:32.399
<v Speaker 1>wet dry seasons, right, interesting exactly. I mean you can

0:25:32.440 --> 0:25:35.320
<v Speaker 1>also use tree rings. Um. There you go. That's another

0:25:35.359 --> 0:25:38.760
<v Speaker 1>thing you could do. That's dender chronology. Um. And that's

0:25:39.280 --> 0:25:42.200
<v Speaker 1>you can use it to date pieces of wood pretty specifically.

0:25:42.280 --> 0:25:44.119
<v Speaker 1>I did, dude, I did date a few pieces of

0:25:44.119 --> 0:25:46.199
<v Speaker 1>wood in my college. Yes, yeah, me too. It was

0:25:46.240 --> 0:25:49.960
<v Speaker 1>a yeah, you know, eventually you find the personalities out there,

0:25:50.040 --> 0:25:53.840
<v Speaker 1>so stick with it people. We good luck, yeah, good luck.

0:25:55.000 --> 0:25:56.720
<v Speaker 1>Yeah yeah. This This entire section, by the way, is

0:25:56.760 --> 0:25:59.760
<v Speaker 1>titled how dating works, um, which cracked me up. And

0:26:00.200 --> 0:26:03.320
<v Speaker 1>but I'm sparing you the majority of the jokes that

0:26:03.359 --> 0:26:06.640
<v Speaker 1>I made. Oh wait for it. So all of these

0:26:06.720 --> 0:26:09.080
<v Speaker 1>kind of kind of geological sort of things helped us

0:26:09.160 --> 0:26:13.439
<v Speaker 1>determine um lots of prehistorical artifacts timeline. Sure, but it

0:26:13.480 --> 0:26:17.440
<v Speaker 1>wasn't until we we didn't get any kind of specificity

0:26:17.520 --> 0:26:20.720
<v Speaker 1>about stuff like this until the nineteen forties. Um, that's

0:26:20.760 --> 0:26:24.679
<v Speaker 1>when one Willard Libby developed the carbon dating process. All right,

0:26:24.720 --> 0:26:27.720
<v Speaker 1>and I know a little bit about carbon dating. I

0:26:27.840 --> 0:26:32.640
<v Speaker 1>understand that it actually requires that you compare two different

0:26:32.680 --> 0:26:36.840
<v Speaker 1>types of carbon against each other, and the differences between

0:26:36.880 --> 0:26:41.200
<v Speaker 1>those two give you an indication of how old something is.

0:26:41.200 --> 0:26:44.000
<v Speaker 1>Is that right? That is exactly how it works, yes, um,

0:26:44.400 --> 0:26:47.760
<v Speaker 1>specifically Okay. So, so there's a radioactive isotope of carbon

0:26:47.880 --> 0:26:50.919
<v Speaker 1>called carbon fourteen. It has a half life of about

0:26:50.960 --> 0:26:54.760
<v Speaker 1>five thousand, seven hundred years, and it's really plentiful around earth. Um,

0:26:54.880 --> 0:26:57.959
<v Speaker 1>living things absorb it, Plants take it in as as

0:26:58.000 --> 0:27:01.920
<v Speaker 1>part of carbon dioxide. Other living exeat plants, circle of life,

0:27:01.960 --> 0:27:07.160
<v Speaker 1>so on and so forth. Exactly. But so you've got

0:27:07.200 --> 0:27:10.280
<v Speaker 1>this radioactive isotope, and then you've got, um, the stable

0:27:10.440 --> 0:27:13.960
<v Speaker 1>normal carbon, which is carbon twelve, two different types of carbon.

0:27:13.960 --> 0:27:16.159
<v Speaker 1>You have carbon fourteen in carbon twelve, right, And the

0:27:16.280 --> 0:27:18.760
<v Speaker 1>ratio of these two in the air and in living

0:27:18.800 --> 0:27:22.840
<v Speaker 1>things is pretty much constant, even though the fourteen keeps

0:27:22.960 --> 0:27:27.119
<v Speaker 1>decaying into carbon twelve. Okay, So if that ratio is constant,

0:27:27.160 --> 0:27:29.720
<v Speaker 1>then that suggests to me that in fact, these living

0:27:29.760 --> 0:27:33.280
<v Speaker 1>things are getting new sources of carbon fourteen because otherwise

0:27:33.280 --> 0:27:36.399
<v Speaker 1>the ratio would get out of whack after a while. Right, right, Well,

0:27:36.520 --> 0:27:40.320
<v Speaker 1>we we get carbon fourteen because of cosmic rays hitting

0:27:40.440 --> 0:27:43.760
<v Speaker 1>particles in the atmosphere and and creating it and stuff

0:27:43.800 --> 0:27:47.280
<v Speaker 1>and things, um so, But so we breathe it in constantly.

0:27:48.080 --> 0:27:50.760
<v Speaker 1>It's in our bodies, and it decays slowly over time

0:27:50.760 --> 0:27:54.200
<v Speaker 1>into carbon twelve. Okay, So as long as we're alive,

0:27:54.840 --> 0:27:58.280
<v Speaker 1>we keep getting carbon fourteen, correct, and we maintain that ratio.

0:27:58.800 --> 0:28:02.840
<v Speaker 1>But after we die, we stopped taking in carbon fourteen.

0:28:02.880 --> 0:28:05.639
<v Speaker 1>So therefore, if you compare the amount of carbon fourteen

0:28:05.680 --> 0:28:09.160
<v Speaker 1>to carbon twelve in an artifact, in an organic artifact, anyway,

0:28:09.320 --> 0:28:11.120
<v Speaker 1>you can get a pretty good idea of how old

0:28:11.119 --> 0:28:13.760
<v Speaker 1>it is. I see. So because you know that carbon

0:28:13.800 --> 0:28:16.960
<v Speaker 1>fourteen decays over time into carbon twelve in a study

0:28:17.000 --> 0:28:19.600
<v Speaker 1>in constant right, and you know what the ratio is

0:28:19.760 --> 0:28:23.080
<v Speaker 1>in general between carbon twelve and carbon fourteen for a

0:28:23.119 --> 0:28:26.880
<v Speaker 1>living object. By checking that new ratio, you can kind

0:28:26.880 --> 0:28:29.840
<v Speaker 1>of extrapolate how old, or at least how long this

0:28:29.880 --> 0:28:32.560
<v Speaker 1>thing has been dead more or less. Yeah, it's it's

0:28:32.560 --> 0:28:35.880
<v Speaker 1>not a really I mean, it's more precise than previous

0:28:35.920 --> 0:28:38.440
<v Speaker 1>methods were, but it's still giving you a range, it's

0:28:38.480 --> 0:28:40.960
<v Speaker 1>still giving you a range, and there's some downfalls um.

0:28:41.040 --> 0:28:43.840
<v Speaker 1>For example, like we kind of mentioned earlier, UM, if

0:28:43.880 --> 0:28:47.720
<v Speaker 1>you touch organic material um to the object in question,

0:28:47.800 --> 0:28:51.640
<v Speaker 1>you know, like like your hand being organic material um,

0:28:51.720 --> 0:28:54.320
<v Speaker 1>then you can contaminate that sample. So in other words,

0:28:54.360 --> 0:28:56.520
<v Speaker 1>you could get a false reading from it because you've

0:28:56.560 --> 0:29:00.720
<v Speaker 1>actually some of your carbon may have actually corrupted it.

0:29:01.560 --> 0:29:03.640
<v Speaker 1>Now what I think one of the things I think

0:29:03.720 --> 0:29:08.080
<v Speaker 1>is interesting here is how, once again, anyone anyone listening

0:29:08.120 --> 0:29:10.520
<v Speaker 1>to this podcast who has watched any kind of movies

0:29:10.560 --> 0:29:14.240
<v Speaker 1>that are about uh, not just archaeology, but anytime you're

0:29:14.280 --> 0:29:16.800
<v Speaker 1>having characters who are digging up an old side or something.

0:29:17.280 --> 0:29:21.080
<v Speaker 1>Carbon dating was like the the the blanket statement to

0:29:21.120 --> 0:29:23.520
<v Speaker 1>find out how old anything was, whether it was organic

0:29:23.640 --> 0:29:27.320
<v Speaker 1>or not. I'm thinking specifically of there was some horrible

0:29:27.320 --> 0:29:28.880
<v Speaker 1>science fiction film. It was one of the ones that

0:29:29.000 --> 0:29:32.400
<v Speaker 1>m ST three k riffed on, where their solution to

0:29:32.440 --> 0:29:36.480
<v Speaker 1>figuring out how old this clearly non organic thing was

0:29:36.600 --> 0:29:39.120
<v Speaker 1>was through carbon dating, and I thought, I don't think

0:29:39.160 --> 0:29:41.760
<v Speaker 1>that works the way you think it works. It Maybe

0:29:41.880 --> 0:29:47.960
<v Speaker 1>spaceships are made from carbon, and I don't, yeah, from alive.

0:29:48.160 --> 0:29:52.320
<v Speaker 1>So that's something true. UM and and also I mean okay,

0:29:52.400 --> 0:29:54.960
<v Speaker 1>so so you can't really do it with with very

0:29:55.040 --> 0:29:58.920
<v Speaker 1>small samples, although improved techniques are helping to change that,

0:29:59.360 --> 0:30:01.800
<v Speaker 1>UM and the data can be a little bit off

0:30:01.880 --> 0:30:05.480
<v Speaker 1>for for newer samples. UM And they can also be

0:30:05.560 --> 0:30:09.719
<v Speaker 1>off for anything over fifty years old because the too

0:30:09.840 --> 0:30:13.360
<v Speaker 1>much of the carbon has degraded to really accurate. Idea,

0:30:13.600 --> 0:30:17.760
<v Speaker 1>so basically more than years old, right, so anything that's

0:30:18.080 --> 0:30:21.000
<v Speaker 1>younger than fifty years old, but not so young as

0:30:21.040 --> 0:30:25.160
<v Speaker 1>to have happened like within the recent past. So that's

0:30:25.200 --> 0:30:27.840
<v Speaker 1>what it's good for. So let me ask you this, Uh,

0:30:28.760 --> 0:30:32.360
<v Speaker 1>large samples obviously something that you need to do. I

0:30:32.360 --> 0:30:37.440
<v Speaker 1>imagine that this also requires that you have to move stuff,

0:30:37.480 --> 0:30:39.600
<v Speaker 1>because I don't I can't imagine there being like a

0:30:39.640 --> 0:30:43.160
<v Speaker 1>carbon dating kit that you drag out with you to

0:30:43.240 --> 0:30:46.000
<v Speaker 1>the archaeological site that you just pick up an artifact

0:30:46.000 --> 0:30:48.760
<v Speaker 1>and you scan it and everything's cool. Another thing you

0:30:48.800 --> 0:30:51.440
<v Speaker 1>have to watch out for. UM there have been periodic

0:30:51.520 --> 0:30:55.280
<v Speaker 1>fluctuations in the ratio of carbon twelve carbon fourteen over

0:30:55.480 --> 0:30:59.120
<v Speaker 1>the millennia um and and we're gathering more data about

0:30:59.160 --> 0:31:02.240
<v Speaker 1>that all the time. UM. But you know it's it's

0:31:02.240 --> 0:31:04.719
<v Speaker 1>something that has to be taken into consideration. Right, So

0:31:04.760 --> 0:31:07.560
<v Speaker 1>that could mean that something that you had previously or

0:31:07.600 --> 0:31:10.360
<v Speaker 1>at least you thought you had previously previously established to

0:31:10.400 --> 0:31:14.160
<v Speaker 1>a particular time might in fact be from a different

0:31:14.160 --> 0:31:18.160
<v Speaker 1>time because of one of those fluctuations be nudged earlier later. Um,

0:31:18.600 --> 0:31:20.520
<v Speaker 1>Robert and Julie over a stuff to blow your mind

0:31:20.600 --> 0:31:23.080
<v Speaker 1>did a whole episode on this back in April April

0:31:24.400 --> 0:31:27.120
<v Speaker 1>to be precise, called how old is that artifact in

0:31:27.120 --> 0:31:29.160
<v Speaker 1>the window? Um? And it talks a little bit more

0:31:29.160 --> 0:31:31.520
<v Speaker 1>about the process if you're if you're curious to learn more,

0:31:31.600 --> 0:31:33.800
<v Speaker 1>and also about some of the controversies that have come

0:31:33.880 --> 0:31:36.760
<v Speaker 1>up with specific artifacts due to all of these kind

0:31:36.800 --> 0:31:41.240
<v Speaker 1>of weird behavior exceptions to the rule type of thing. Absolutely. Now,

0:31:41.280 --> 0:31:45.560
<v Speaker 1>I understand there are some other techniques that are similar

0:31:45.600 --> 0:31:48.120
<v Speaker 1>to carbon dating, but they're not using carbon, which would

0:31:48.120 --> 0:31:52.360
<v Speaker 1>allow archaeologists to actually date non organic stuff like rocks

0:31:52.360 --> 0:31:56.120
<v Speaker 1>and minerals, right or spaceships, um. Right, because it clearly

0:31:56.400 --> 0:32:01.920
<v Speaker 1>Indian Jones four taught us, Oh no, it's here, um. Yeah. No.

0:32:02.320 --> 0:32:05.640
<v Speaker 1>Other radioactive isotopes can be used for basically the same job,

0:32:05.720 --> 0:32:09.000
<v Speaker 1>Like a potassium forty is pretty good uh, you can.

0:32:09.080 --> 0:32:13.720
<v Speaker 1>You can compare the the argon in minerals and rocks

0:32:13.800 --> 0:32:17.240
<v Speaker 1>to to the amount of potassium forty and that will

0:32:17.240 --> 0:32:20.920
<v Speaker 1>give you a similar effect. And that chronology can can

0:32:21.040 --> 0:32:24.880
<v Speaker 1>date things back to like two million years. So so

0:32:24.920 --> 0:32:29.120
<v Speaker 1>that's how we've gotten done a lot of um paleo archaeology, right, yeah,

0:32:29.120 --> 0:32:33.080
<v Speaker 1>because paleontology and archaeology are similar disciplines but not exactly

0:32:33.120 --> 0:32:36.840
<v Speaker 1>the same thing. So okay, so that makes sense, all right.

0:32:36.960 --> 0:32:41.040
<v Speaker 1>So Unfortunately that the the thing about all of this,

0:32:41.240 --> 0:32:44.200
<v Speaker 1>All of this always got toring me down, I know, right,

0:32:44.400 --> 0:32:50.040
<v Speaker 1>science bringing us down. Unfortunately, all of these methods have

0:32:50.200 --> 0:32:53.880
<v Speaker 1>been basically screwed over forever by the fact that we

0:32:53.960 --> 0:32:57.600
<v Speaker 1>have nuclear weapons and reactors. Oh right, I guess those

0:32:57.720 --> 0:33:02.240
<v Speaker 1>could kind of influence the amounts of radiation that you

0:33:02.280 --> 0:33:06.440
<v Speaker 1>would find in any given sample. And you know, so

0:33:06.480 --> 0:33:10.120
<v Speaker 1>I'm sure that future you know, aliens or human populations

0:33:10.160 --> 0:33:12.120
<v Speaker 1>or whatever could find a way around it. They're probably

0:33:12.160 --> 0:33:14.560
<v Speaker 1>going to be pretty clever, right, Yeah, they'll have a

0:33:14.560 --> 0:33:17.240
<v Speaker 1>holidayck and they'll the person will just appear and say, oh, yeah,

0:33:17.280 --> 0:33:21.120
<v Speaker 1>I was around at this time, but until then, man,

0:33:21.360 --> 0:33:25.360
<v Speaker 1>science shucks, always bringing us down. Now, I gotta ask

0:33:25.360 --> 0:33:26.800
<v Speaker 1>you about this because I see it in the notes.

0:33:27.240 --> 0:33:32.000
<v Speaker 1>I don't know what this is. It's um thermoluminescence. So

0:33:32.040 --> 0:33:34.080
<v Speaker 1>if I have to guess, I would say it's got

0:33:34.120 --> 0:33:38.480
<v Speaker 1>something to do with heat and light. That is entirely correct,

0:33:38.800 --> 0:33:43.360
<v Speaker 1>all right. So basically, some pottery includes crystaline materials like

0:33:43.440 --> 0:33:48.160
<v Speaker 1>quartz um that when heated, release electrons that were trapped

0:33:48.200 --> 0:33:51.840
<v Speaker 1>in defects in the crystal structure. And that means that

0:33:52.400 --> 0:33:55.480
<v Speaker 1>during the initial firing of a piece of pottery um,

0:33:55.520 --> 0:33:59.560
<v Speaker 1>it kind of sets this quartz clock to zero. UM

0:33:59.760 --> 0:34:03.440
<v Speaker 1>be cause the the electrons got into those defects and

0:34:03.520 --> 0:34:07.160
<v Speaker 1>in the crystals through um, through cosmic rays, through the

0:34:07.240 --> 0:34:11.880
<v Speaker 1>absorption of electromagnetic radiation, or or through the the the

0:34:11.920 --> 0:34:16.440
<v Speaker 1>effects that probably the piezo electric effects of electromatic magnetic

0:34:16.520 --> 0:34:18.319
<v Speaker 1>radiation on the crystals. We'll have a lot more to

0:34:18.320 --> 0:34:20.640
<v Speaker 1>say about piezo electric effects in part two of this show.

0:34:20.800 --> 0:34:24.319
<v Speaker 1>We will um and also in another episode that we're

0:34:24.320 --> 0:34:27.560
<v Speaker 1>according to. That's right, it's we're all about the piezo

0:34:27.560 --> 0:34:30.720
<v Speaker 1>electric effect up here. They're everywhere. So so over the years,

0:34:30.880 --> 0:34:35.799
<v Speaker 1>defects absorb electrons at a pretty constant rate, and so

0:34:35.840 --> 0:34:37.880
<v Speaker 1>if you find a bit of pottery that has that

0:34:37.960 --> 0:34:40.279
<v Speaker 1>has previously been fired in the ground, dig it up

0:34:40.520 --> 0:34:44.480
<v Speaker 1>and reheat it, and then measure the amount of electrons

0:34:44.520 --> 0:34:47.640
<v Speaker 1>that you get off of it. You can date kind

0:34:47.680 --> 0:34:50.200
<v Speaker 1>of sort of where like like how long it has

0:34:50.239 --> 0:34:53.960
<v Speaker 1>existed since it's been originally fired. That's pretty incredible. I mean,

0:34:54.000 --> 0:34:57.200
<v Speaker 1>it's you know, it's an interesting, very novel approach to

0:34:57.239 --> 0:35:00.440
<v Speaker 1>trying to go around finding how old something is. Uh.

0:35:00.480 --> 0:35:03.480
<v Speaker 1>And this is just an example of the ingenuity that

0:35:03.520 --> 0:35:06.480
<v Speaker 1>people have applied to this discipline to be able to

0:35:06.560 --> 0:35:10.040
<v Speaker 1>learn more about where we come from and the ancestors

0:35:10.040 --> 0:35:12.560
<v Speaker 1>that came before us who didn't leave any written records,

0:35:12.600 --> 0:35:14.720
<v Speaker 1>and you know, how do we know more about them?

0:35:14.760 --> 0:35:16.759
<v Speaker 1>This is exactly how we have to go about it,

0:35:17.000 --> 0:35:19.239
<v Speaker 1>which is why I find it so fascinating. Anytime you

0:35:19.040 --> 0:35:24.239
<v Speaker 1>you're talking about unraveling a mystery, obviously that that arouses curiosity, right,

0:35:24.600 --> 0:35:27.439
<v Speaker 1>So not a big surprise that we had a bunch

0:35:27.440 --> 0:35:29.520
<v Speaker 1>of pulp action heroes kind of come out of this,

0:35:29.680 --> 0:35:33.040
<v Speaker 1>including the beloved Indiana Jones. Let's not let's not even

0:35:33.200 --> 0:35:38.720
<v Speaker 1>you know acknowledge the fourth movie. Yeah no, No, Chyltte

0:35:38.719 --> 0:35:41.320
<v Speaker 1>Booth was never a part never a part of Indiana Jones.

0:35:42.120 --> 0:35:46.520
<v Speaker 1>Uh bad dates. All right? So um, anyway, that wraps

0:35:46.600 --> 0:35:49.160
<v Speaker 1>up our first episode about archaeology, but we're going to

0:35:49.200 --> 0:35:51.520
<v Speaker 1>do another episode where we're talking about some of the

0:35:51.680 --> 0:35:55.400
<v Speaker 1>newer technology that's being used in the field and how

0:35:55.480 --> 0:36:01.080
<v Speaker 1>it's really making this a truly exciting discipline for the

0:36:01.120 --> 0:36:04.040
<v Speaker 1>twenty one century. Not that it wasn't exciting before, but

0:36:04.080 --> 0:36:06.799
<v Speaker 1>now we're actually gonna have chances to, at least in

0:36:06.800 --> 0:36:10.200
<v Speaker 1>a virtual way, see what these places look like. It's

0:36:10.239 --> 0:36:13.279
<v Speaker 1>exciting in a much nerdier way, which is why I

0:36:13.320 --> 0:36:16.400
<v Speaker 1>get all excited at the end of the episode. So guys,

0:36:16.440 --> 0:36:18.640
<v Speaker 1>if you have any suggestions for future topics that we

0:36:18.640 --> 0:36:21.520
<v Speaker 1>can cover here on tech Stuff, I recommend you let

0:36:21.560 --> 0:36:24.200
<v Speaker 1>us know. How do you do that? You ask, Well,

0:36:24.480 --> 0:36:27.640
<v Speaker 1>here's a way. Send us an email our addresses tech

0:36:27.680 --> 0:36:30.879
<v Speaker 1>Stuff at Discovery dot com. Or if you are a

0:36:30.920 --> 0:36:36.000
<v Speaker 1>social media guru, then you can jump onto Facebook or

0:36:36.160 --> 0:36:38.120
<v Speaker 1>Twitter and hey, what's that blogging thing that all the

0:36:38.160 --> 0:36:41.239
<v Speaker 1>kids are doing now? Humbler tumbler and find us at

0:36:41.280 --> 0:36:43.600
<v Speaker 1>tech Stuff hs W M Lauren and I will talk

0:36:43.600 --> 0:36:49.920
<v Speaker 1>to you again really soon for more on this and

0:36:50.000 --> 0:36:52.520
<v Speaker 1>thousands of other topics because it has staff works dot

0:36:52.560 --> 0:36:58.480
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