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Atomic Clocks!

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  • Atomic Clocks!

    What was the first element used in atomic clocks? I post this question because I am interested the history and discovery of radioactive isotopes.

  • #2
    Originally posted by Omniskeptical View Post
    What was the first element used in atomic clocks? I post this question because I am interested the history and discovery of radioactive isotopes.
    The first element: Darwinium.
    .
    .
    "The first atomic clock was an ammonia maser device built in 1949 at the U.S. National Bureau of Standards (NBS, now NIST). It was less accurate than existing quartz clocks, but served to demonstrate the concept. The first accurate atomic clock, a caesium standard based on a certain transition of the caesium-133 atom, was built by Louis Essen in 1955 at the National Physical Laboratory in the UK." Just look in Wiki under atomic clocks.

    Jorge

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    • #3
      There's this wonderful new Internet site called "Google". You should try it sometime. It's really groovy!

      Originally posted by Wikipedia on Atomic Clock
      The rare-earth element ytterbium (Yb) is valued not so much for its mechanical properties but for its complement of internal energy levels. "A particular transition in Yb atoms, at a wavelength of 578 nm, currently provides one of the world's most accurate optical atomic frequency standards," said Marianna Safronova.[20] The estimated amount of uncertainty achieved corresponds to a Yb clock uncertainty of about one second over the lifetime of the universe so far, 15 billion years, according to scientists at the Joint Quantum Institute (JQI) and the University of Delaware in December 2012.
      From: http://en.wikipedia.org/wiki/Atomic_clock

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      • #4
        Jorge apparently doesn't believe in atomic clocks either, probably since according to him they somehow support an evolutionary religion.

        Ya see, in order to dismiss radiometric dating, Jorgian YECs have to believe that fundamental physical constants have changed in the past 6000 years so that 5,999 year old rocks just appear to be a billion years old due the unfounded assumption and YEC cuss word Uniformitarianism. (~shudder~)

        Isn't this the shtick from Bizarro World, Jorge?

        K54

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        • #5
          It's not obvious that Jorge is objecting to atomic clocks, and his response is correct. Interestingly, that "less than one second over the lifetime of the universe" is a sort of middle ground! Quartz crystal clocks (which would be off a few thousand years by now) are about as much less accurate than that ytterbium clock, as THAT clock is to the latest iteration. I think just this year they got the error down to nanoseconds over the lifetime of the universe. These are the (still experimental) quantum-ion clocks, which can be used to measure relativistic time-shifts on earth, frame-dragging, etc. Fascinating stuff.

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          • #6
            Originally posted by phank View Post
            It's not obvious that Jorge is objecting to atomic clocks, and his response is correct. Interestingly, that "less than one second over the lifetime of the universe" is a sort of middle ground! Quartz crystal clocks (which would be off a few thousand years by now) are about as much less accurate than that ytterbium clock, as THAT clock is to the latest iteration. I think just this year they got the error down to nanoseconds over the lifetime of the universe. These are the (still experimental) quantum-ion clocks, which can be used to measure relativistic time-shifts on earth, frame-dragging, etc. Fascinating stuff.
            Correct. Jorge does not object to atomic clocks, but he definitely does object to the notion that radioactivity decay can tell us the approximate age of igneous rocks that cooled a billion years ago.

            The reason? In his particular Genesis interpretation the Cosmos is no more than 10,000 years old. The Bible sez it, he believes it, end of story. So the very notion of a billion years is laughable to him. That time is undefined. It has to be.

            If you remind him of the precise timing of radioactive decay, he will say -- yes -- it's been precise since some indeterminable point in the past 6000 years, and that you are brainwashed by the materialist/naturalist notion of uniformitarianism.

            Hammer/nail/Jello/wall

            K54

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            • #7
              Originally posted by klaus54 View Post
              Correct. Jorge does not object to atomic clocks, but he definitely does object to the notion that radioactivity decay can tell us the approximate age of igneous rocks that cooled a billion years ago.

              The reason? In his particular Genesis interpretation the Cosmos is no more than 10,000 years old. The Bible sez it, he believes it, end of story. So the very notion of a billion years is laughable to him. That time is undefined. It has to be.

              If you remind him of the precise timing of radioactive decay, he will say -- yes -- it's been precise since some indeterminable point in the past 6000 years, and that you are brainwashed by the materialist/naturalist notion of uniformitarianism.

              Hammer/nail/Jello/wall

              K54
              I absolutely marvel at just how utterly lost you are, Santa.

              But please, do carry on ... I'm entertained by your display of arrogant cluelessness.

              Jorge

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              • #8
                Originally posted by Jorge View Post
                I absolutely marvel at just how utterly lost you are, Santa.

                But please, do carry on ... I'm entertained by your display of arrogant cluelessness.

                Jorge
                An informed correction would be much more helpful than a drive-by insult. DO you object to atomic clocks? What is your position, and why?

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                • #9
                  My only objection is that the nuclear magnetic resonance shows a lack of isotope change. But the same does not preclude them from working. It would seem that this clock concept went into radiometric dating.

                  Comment


                  • #10
                    Originally posted by Omniskeptical View Post
                    My only objection is that the nuclear magnetic resonance shows a lack of isotope change. But the same does not preclude them from working. It would seem that this clock concept went into radiometric dating.
                    Huh??? Translation and reference, please.

                    K54

                    Comment


                    • #11
                      Originally posted by klaus54 View Post
                      Huh??? Translation and reference, please.

                      K54
                      The isotope is hit by a laser. The element becomes more radioactive at a certain clock frequency?

                      Comment


                      • #12
                        Originally posted by Jorge View Post
                        I absolutely marvel at just how utterly lost you are, Santa.

                        But please, do carry on ... I'm entertained by your display of arrogant cluelessness.

                        Jorge
                        Was there any particular item in my post that points to arrogant cluelessness? Did I not capture accurately your opinion of radioisotope decay rates and radiometric dating?

                        Please clarify.

                        Thank you!

                        Santa

                        P.S. Here is the post in question:


                        Originally posted by Santa Klaus54
                        Correct. Jorge does not object to atomic clocks, but he definitely does object to the notion that radioactivity (sic) decay can tell us the approximate age of igneous rocks that cooled a billion years ago.

                        The reason? In his particular Genesis interpretation the Cosmos is no more than 10,000 years old. The Bible sez it, he believes it, end of story. So the very notion of a billion years is laughable to him. That time is undefined. It has to be.

                        If you remind him of the precise timing of radioactive decay, he will say -- yes -- it's been precise since some indeterminable point in the past 6000 years, and that you are brainwashed by the materialist/naturalist notion of uniformitarianism.

                        Hammer/nail/Jello/wall

                        K54

                        Comment


                        • #13
                          Originally posted by Omniskeptical View Post
                          The isotope is hit by a laser. The element becomes more radioactive at a certain clock frequency?
                          I don't understand this. Reference, please.

                          Comment


                          • #14
                            Originally posted by klaus54 View Post
                            I don't understand this. Reference, please.
                            I guess the only thing certain is that there is resonance and vibration in the radioisotopes. Do you know any physics?

                            Comment


                            • #15
                              Originally posted by Omniskeptical View Post
                              I guess the only thing certain is that there is resonance and vibration in the radioisotopes. Do you know any physics?
                              Kinda sorta. I have Ph.D. in maths and have taught a basic freshman level physics course.

                              Do you know any physics?

                              I don't understand why you're bringing up lasers and atomic clocks.

                              Threads typically have some point to them. What's yours?

                              K54

                              P.S. I still would like to hear why Jorge has no problem with atomic clocks but does have a problem with radiometric dating. I gave my hypothesis but he did not address it. What's new?
                              Last edited by klaus54; 06-01-2014, 11:45 PM. Reason: p.s.

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