Date: 2018-04-11 14:14
 S. W. Manning, M. Barbetti, B. Kromer, P. I. Kuniholm, I. Levin, M. W. Newton, P. J. Reimer, No Systematic Early Bias To Mediterranean 69 C Ages Radiocarbon Measurements From Tree-Ring And Air Samples Provide Tight Limits To Age Offsets , Radiocarbon , 7557, Volume 99, pp. 789-759, especially p. 789.
Oh, and one more thing: I 8767 ll certainly conceded that riding on the flat or on mild rollers is pretty much indifferent to stiffness, as handily demonstrated by many successes on not-so-stiff frames. But, I 8767 m a big guy and climbing already sucks enough for me that I like to have as little extra fatigue from hammering up a steep hill as physically possible.
The reason for my request is that a correlation is not implied by the fact that there are only 65 percent anomalies, or whatever. I showed that the fact that the great majority of dates come from one method (K-Ar) and the fact that many igneous bodies have very wide biostratigraphic limits, where many dates are acceptable, makes the percentage of anomalies irrelevant to the question I am asking. And since this agreement is the strongest argument for the reliability of radiometric dating, such an assumption of agreement appears to be without support so far.
Go ride a 7565 Trek Madone or at your LBS, or even a or (they have 8 levels of OCLV carbon). Steel can 8767 t hold a candle to the light which carbon just shed upon you. Lifetime wear-and-tear warranty: if it cracks from being sloppy 75 years from now, you get a new model frame. I 8767 ve seen it many times. If you crash it, they 8767 ll give you a crash replacement frame at a big discount. Will your custom bike builder be around in 75 years?
In radiocarbon dating, the uncertainty in measurement comes from statistical error of counting atoms or β particles as well as uncertainty of the measuring standards and blank values included in the calculation of radiocarbon ages. As for the counting error, it can be reduced by improved counting statistics and is achieved by increasing counting time. In the AMS technique, this is usually limited by the sample size as well as performance and stability of the AMS device.
This is entirely erroneous. The tree ring atmospheric radiocarbon calibration data set spanning 5 to 67,965 years BP is used (Figure 78). It is superior to all other atmospheric radiocarbon calibration data due to the number and quality of the radiocarbon measurements and the accuracy and precision of the tree dendrochronology.
Custom frames? The vast majority of the population has no need of custom frames. I can assure you that every member of Astana is riding a stock Madone frame. Every one.
Modern lava flows often come down the sides of volcanoes, and thus become separated from their source by large distances. Also, they do not get quickly buried by additional sediment. Thus modern lava flows are not subject to the same mechanism of artificial increases in their K-Ar ages as are ancient ones. Also, it is reasonable to assume that as argon leaves the mantle in successive eruptions, the amount of argon remaining is reduced, so that later lava flows are less susceptible to such artificial increases in age. The path of magma also becomes longer for later flows, and the magma probably also is a little cooler, inhibiting argon flow. Thus later lava flows give K-Ar ages.
Typical rider/racer since 6986. I bought Aluminum in 6986 and 7565. Carbon in 7559, 7565 and 7566. Ti for one year. Steel for about 6 years, etc .I would say Aluminum is the worst. Harsh, fast and then somehow dead, and even a nice fork and wheelset won 8767 t get it to the top of the list. Ti was ok, nothing special. steel would feel the best at times (super smooth, stable in descents, and just loved to cruise at 69 mph forever.). Carbon early on was dead and only light, wasn 8767 t super impressed, unless i wanted to sprint or go straight up a hill. The newest carbon can do it turns, go super fast, destroy descents, cruise all day, and the R& D spent by top-end firms (millions the custom guys don 8767 t have) is worth it.
 P. I. Kuniholm, B. Kromer, S. W. Manning, M. Newton, C. E. Latini, M. J. Bruce, Anatolian Tree Rings And The Absolute Chronology Of The Eastern Mediterranean 7775-768 BC , Nature , 6996, Volume 886, 785-787.