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Author Topic:   Uranium Dating
Coragyps
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Posts: 5522
From: Snyder, Texas, USA
Joined: 11-12-2002
Member Rating: 3.1


Message 11 of 153 (488912)
11-19-2008 11:48 AM
Reply to: Message 8 by Coyote
11-19-2008 10:52 AM


Re: Carbon 14 levels
I believe the curve has been extended past 20,000 using other annular materials from other areas.

And to about 45,000 years ago from lake varves in Japan. About ten methods all correlate with each other, too.


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Coragyps
Member
Posts: 5522
From: Snyder, Texas, USA
Joined: 11-12-2002
Member Rating: 3.1


Message 40 of 153 (573412)
08-11-2010 10:03 AM
Reply to: Message 35 by archaeologist
08-11-2010 8:00 AM


what was true 5,000 years ago was still true 2,000 years ago and is still true today.

We still are excused from a murder conviction if we strike our slave but he lives a little while before dying? Lobsters are still an abomination?

Yes, that ^ goes in a different thread.

butfor most dating systems the half-life is too long to know if they are correct or not.

You don't know what a half life is, do you, Archaeologist? Is it necessary to drive a car for an hour down a straight highway to tell if it is going 65 mph? No? Neither is it necessary to hold a lump of carbon-14 for 5730 years to determine its half-life.


"The wretched world lies now under the tyranny of foolishness; things are believed by Christians of such absurdity as no one ever could aforetime induce the heathen to believe." - Agobard of Lyons, ca. 830 AD

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Coragyps
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Posts: 5522
From: Snyder, Texas, USA
Joined: 11-12-2002
Member Rating: 3.1


Message 64 of 153 (573652)
08-12-2010 9:59 AM
Reply to: Message 50 by archaeologist
08-11-2010 7:10 PM


actually you do or it is all hearsay, assumption or conjecture.

So a car's speedometer, or a policeman's radar gun, are "hearsay, assumption or conjecture?" A half-life, whether 30 milliseconds or 1.9 X 10^19 years, is just an expression of a rate.

You don't need to drive 65 miles in an hour to know that your car can travel at 65 miles per hour. Niether do you need to watch a chunk of bismuth for nineteen quintillion years to determine its half-life. It's a rate.

Edited by Coragyps, : fix tag


"The wretched world lies now under the tyranny of foolishness; things are believed by Christians of such absurdity as no one ever could aforetime induce the heathen to believe." - Agobard of Lyons, ca. 830 AD

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Coragyps
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Posts: 5522
From: Snyder, Texas, USA
Joined: 11-12-2002
Member Rating: 3.1


Message 74 of 153 (573848)
08-12-2010 9:02 PM
Reply to: Message 70 by archaeologist
08-12-2010 7:31 PM


you still have to assume that nothing went wrong with the speedometer or radar gun through usage, natural elements or faulty craftsmanship, to name a few things that could go wrong.

Sure, things can "go wrong." But nobody has yet found, say, a sample of uranium-235 to decay at a rate inconsistent with the rate expressed by a half-life of 703 million years. And there is rather a fair bit of uranium-235 in use around the world in power reactors. I do not need to assume that speedometers and radar guns routinely and usually "go wrong."


"The wretched world lies now under the tyranny of foolishness; things are believed by Christians of such absurdity as no one ever could aforetime induce the heathen to believe." - Agobard of Lyons, ca. 830 AD

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Coragyps
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Posts: 5522
From: Snyder, Texas, USA
Joined: 11-12-2002
Member Rating: 3.1


Message 84 of 153 (573952)
08-13-2010 9:16 AM
Reply to: Message 77 by archaeologist
08-13-2010 4:55 AM


i just watched a discovery channel show for kids and guess what, they found a dinosaur skeleton near the surface so i highly doubt your statement.

Erosion. It is an English word with an actual definition. An actual archaeologist might even be familiar with the definition. You, though, don't seem to be aware of it.

It means the wearing away of rocks/sediments by weather-related processes. It can expose old rocks that were previously buried. Libraries even have books, sometimes with "geology" in the titles, that supply more detail about erosion. This amazing process can even explain how dinosaur fossils can be found, as you saw, near the surface! Try reading one!


"The wretched world lies now under the tyranny of foolishness; things are believed by Christians of such absurdity as no one ever could aforetime induce the heathen to believe." - Agobard of Lyons, ca. 830 AD

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Coragyps
Member
Posts: 5522
From: Snyder, Texas, USA
Joined: 11-12-2002
Member Rating: 3.1


Message 101 of 153 (574046)
08-13-2010 6:21 PM
Reply to: Message 90 by archaeologist
08-13-2010 5:12 PM


you do not want me putting creatinist material onhere....

Who doesn't want you to? You've been asked for references many times in your few days here and have supplied a couple to your own website. Well, that and, "I think I read that in a newspaper somewhere." Go ahead! Put some "creatinist material onhere" and see what happens next! It would be more than welcome!


"The wretched world lies now under the tyranny of foolishness; things are believed by Christians of such absurdity as no one ever could aforetime induce the heathen to believe." - Agobard of Lyons, ca. 830 AD

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Coragyps
Member
Posts: 5522
From: Snyder, Texas, USA
Joined: 11-12-2002
Member Rating: 3.1


Message 145 of 153 (587278)
10-18-2010 8:44 AM
Reply to: Message 144 by Chiroptera
10-18-2010 7:32 AM


Of course, there are practical issues in making these measurements...

I might point out that the decay of uranium is exceptionally well studied: all those power reactors and atom bombs around the world depend on a good knowledge of the fuel they use.


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