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You could talk about the tiny quartz crystal and the piezoelectric effect used to provide a stable time base for the electronic movement.You could describe the atomic workings of the quartz oscillator and how it resonates at a specific and highly stable frequency, and how this is used to accurately pace a timekeeping mechanism.Knowing that small concentrations of collagen can attract contamination, they compared precision Accelerator Mass Spectrometry (AMS) tests of collagen and bioapatite (hard carbonate bone mineral) with conventional counting methods of large bone fragments from the same dinosaurs. Mary Schweitzer, associate professor of marine, earth, and atmospheric sciences at North Carolina State University, surprised scientists in 2005 when she reported finding soft tissue in dinosaur bones.

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You can get any date you like depending on the assumptions you make.

And that is what geologist do, they make up an assumed geological history for rock depending on the numbers that come from the geochronology lab (see Dating secrets).

And you have to check to make sure he touches the edge at the end of each lap.

Without these observations you cannot be sure that the time is valid.

After the AOGS-AGU conference in Singapore, the abstract was removed from the conference website by two chairmen because they could not accept the findings.

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