Actually, it is a question of accuracy, as he is trying to be very close to the actual value, while precision has to do with the consistency of a measurement. But really, the difference in accuracy and precision really only applies to a scientific data set, and are virtually interchangeable in all other contexts.
Generally, in my field anyway, “Accuracy” is defined in relation from the measured value to the nominal value. “Precision” is defined by how close measurements are to each other. “Repeatability” would be a good synonym for “precision”.
I’ll digress and say that other fields may have a different definition.
Little known fact: carbon dating only works for samples up to about 50,000 years old. For things like dinosaur bones, it is utterly useless (there’s not enough C14 left to measure). For those, you have to use completely different (and much less accurate) dating methods.
Little known fact: people who try to joke about finding Carmen Sandiago on their website probably suck at life. Same thing for making a website about the hobbies of some bald dude with sunglasses.
And in a choice between someone who sucks at life and a scientist I’m damn well going to listen to the scientist.
So who sucks more at life: someone with a lame demo website, or someone who looks up people’s websites to flame them for it and believes a header on a joke website constitutes a statement by a scientist?
> carbon dating only works for samples up to about 50,000 years old.
Indeed, and this is why every half decent university (resp. natural science teacher for that matter) will give its students at least a quick introduction to the different methods & techniques commonly employed — to what they are applied, how they are used in conjunction, etc. — to date stuff.
It’s only “little known” to those who didn’t (want to) have a clue to begin with resp. were educated at a lousy school.
Actually using other elements with longer 1/2 lives to date older fossils, rocks, etc. is no less accurate. It’s still proportional and although a few thousand years may seem substantial it’s not if you’re dealing with a time line of millions or billions of years.
Nope, there are plenty of radioactive isotopes you can use to date rock surrounding dinosaur bone, particularly stuff like meteorite ejecta, lava flows, and ash layers (which happen to be common in the Cretaceous anyway). Calling radiometric dating “carbon dating” is misleading in itself. Carbon is only one of many valuable isotopes, and is actually one of the easiest to contaminate, so is frequently no more accurate than these other isotopes.
Not to mention a lot of relative dating techniques (lake varves, any sedimentary rock bounded both by an igneous dike and an ash flow, correlation using a key bed, such as the terminal coal layer in the Hell Creek formation, etc.) can be at least as accurate.
Understanding of the limiting ranges of radioactive dating fail. Carbon dating stops working at objects 50,000 years old. (that order of magnitude, anyway). By the time something is 65 million years old, you’ll be lucky to find any C-14 in it. In fact, you won’t, because the bone is fossilized – all the carbon has been replaced by minerals.
The person who made the comix is probably not the person who made the caption, and you are addressing the two people as if they are the same one. Oh ho ho ho!
In the classic 1934 film “The Gay Divorcee,” starring Fred Astaire and Ginger Rogers, the joke was used by the “waiter” played by Eric Blore. I wish I could paste the dialogue but it’s during the climactic scene near the end of the film. So it’s at least that old. Probably could YouTube it.
“And upon the Enterprise-D bridge, Picard and Riker didst hear the fallacy. And they looked upon him in sorrow, and did give him double-facepalm.” =) The Book of Roddenberry, v.4:13, Stardate 53923.12
It’s not hard to understand. It was really cool for the first few levels, but it starts to get sort of repetitive and boring about halfway through. By the time you actually go to Xen it’s like they didn’t even care anymore.
I like this photo of captain Luc Parcard and Will Riker, plus the original Star Trek featuring William Shatner, there expression reminds me how i feel when i get a migraine headache.
First of all LAWL, I love it, second, uh Will and Jean-Luc changed uniforms hahaha, and third, is that Guillermo Del Toro by the dinosaur? It kinda looks like him.
knew that Joke, but forgot it
I LOL’D
Much better than some of the other recent comics.
I think Picard’s arm is broken…
Technically, it’s the *precision* that would be impressive. Either answer would be accurate.
I will now go hang my head in shame and weep at the discovery that I’ve become some kind of English language geek.
Actually, it is a question of accuracy, as he is trying to be very close to the actual value, while precision has to do with the consistency of a measurement. But really, the difference in accuracy and precision really only applies to a scientific data set, and are virtually interchangeable in all other contexts.
Generally, in my field anyway, “Accuracy” is defined in relation from the measured value to the nominal value. “Precision” is defined by how close measurements are to each other. “Repeatability” would be a good synonym for “precision”.
I’ll digress and say that other fields may have a different definition.
Derp ahaha u guys tlk funy
Little known fact: carbon dating only works for samples up to about 50,000 years old. For things like dinosaur bones, it is utterly useless (there’s not enough C14 left to measure). For those, you have to use completely different (and much less accurate) dating methods.
Little known fact: people who try to joke about finding Carmen Sandiago on their website probably suck at life. Same thing for making a website about the hobbies of some bald dude with sunglasses.
And in a choice between someone who sucks at life and a scientist I’m damn well going to listen to the scientist.
So who sucks more at life: someone with a lame demo website, or someone who looks up people’s websites to flame them for it and believes a header on a joke website constitutes a statement by a scientist?
I’ll go with demo website guy as the one who sucks more at life. ;D
I will now feel smugly superior for not commenting on how immature you three are for saying things like this. DAMMIT!
Yeah, but there are several dating methods, and they all concur with each other.
> carbon dating only works for samples up to about 50,000 years old.
Indeed, and this is why every half decent university (resp. natural science teacher for that matter) will give its students at least a quick introduction to the different methods & techniques commonly employed — to what they are applied, how they are used in conjunction, etc. — to date stuff.
It’s only “little known” to those who didn’t (want to) have a clue to begin with resp. were educated at a lousy school.
Longish, but comprehensive articles on the issue:
http://www.talkorigins.org/faqs/isochron-dating.html
http://www.talkorigins.org/faqs/dating.html
Actually using other elements with longer 1/2 lives to date older fossils, rocks, etc. is no less accurate. It’s still proportional and although a few thousand years may seem substantial it’s not if you’re dealing with a time line of millions or billions of years.
Nope, there are plenty of radioactive isotopes you can use to date rock surrounding dinosaur bone, particularly stuff like meteorite ejecta, lava flows, and ash layers (which happen to be common in the Cretaceous anyway). Calling radiometric dating “carbon dating” is misleading in itself. Carbon is only one of many valuable isotopes, and is actually one of the easiest to contaminate, so is frequently no more accurate than these other isotopes.
Not to mention a lot of relative dating techniques (lake varves, any sedimentary rock bounded both by an igneous dike and an ash flow, correlation using a key bed, such as the terminal coal layer in the Hell Creek formation, etc.) can be at least as accurate.
Uhm… *cough*
I’m majoring in English! I can analyze poetry, b*tches!
*sneaks out*
I know I’ve heard this joke somewhere before, but it’s still obscure enough that I laughed at it.
I like this joke
thumbz up
Unnecessary sci-fi geek comment:
In Trek they have quantum dating
Understanding of the limiting ranges of radioactive dating fail. Carbon dating stops working at objects 50,000 years old. (that order of magnitude, anyway). By the time something is 65 million years old, you’ll be lucky to find any C-14 in it. In fact, you won’t, because the bone is fossilized – all the carbon has been replaced by minerals.
Also, way to steal a joke from QI.
QI didn’t invent the joke either.
So then who did?
The person who made the comix is probably not the person who made the caption, and you are addressing the two people as if they are the same one. Oh ho ho ho!
In the classic 1934 film “The Gay Divorcee,” starring Fred Astaire and Ginger Rogers, the joke was used by the “waiter” played by Eric Blore. I wish I could paste the dialogue but it’s during the climactic scene near the end of the film. So it’s at least that old. Probably could YouTube it.
This is the best demonstration of the need for significant figures that I have ever seen. Every one think back to your high school chemistry days…
Predictable but funny.
I saw this joke in a “Lighter Side of…” installment in Mad magazine nearly two decades ago. Is that old enough to be it?
I think this joke is old enough that it was old when it appeared in Mad Magazine….
But that’s OK, the oldest joke is always new to someone, and this is a really good presentation!
Carbon dating is only valid when used by religious scholars to test the authenticity of religious artifacts
In that case, it’s only good for up to 10000 years. That’s over 9000!
“And upon the Enterprise-D bridge, Picard and Riker didst hear the fallacy. And they looked upon him in sorrow, and did give him double-facepalm.” =) The Book of Roddenberry, v.4:13, Stardate 53923.12
Page title: ’4 panel comic strip’
BUT THERE ARE 5 PANELS
YOUR ARGUMENT IS INVALID
Phillip: “By the time something is 65 million years old, you’ll be lucky to find any C-14 in it.”
You don’t really understand half-life decay, do you?
It’s not hard to understand. It was really cool for the first few levels, but it starts to get sort of repetitive and boring about halfway through. By the time you actually go to Xen it’s like they didn’t even care anymore.
Jon; So how old is this fossil
Ali; 60 million years
Jon; Happy birthday to you, Happy birthday to you.
(the old ones are the best).
I like this photo of captain Luc Parcard and Will Riker, plus the original Star Trek featuring William Shatner, there expression reminds me how i feel when i get a migraine headache.
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tl;dr
First of all LAWL, I love it, second, uh Will and Jean-Luc changed uniforms hahaha, and third, is that Guillermo Del Toro by the dinosaur? It kinda looks like him.
so that’s where michael moore has been hiding for the last three months and eight days.
No.. I’d like this joke set in Avatar with the huge flying beast skull and Neitiri as the “native museum” guide.
Reflection fail