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Originally posted by poet1b
reply to post by Harte
Um, your second article was from 2008, while the Standford article in from 2010, so obviously everyone doesn't agree that this question has been answered, and even then your link does not back your claim that "it wouldn't change anything". Nor does it back your claim that it doesn't pertain to carbon dating, as the Standford article clearly states that it does. See my post above.
You are saying that the net change means that this doesn't make the whole dating process questionable, when the Standford article clearly states that it does, because the overall variability is to large to not question whether or not this can be considered a constant.
The articles you cited about supernova radioisotope decay are about identifying different species of radioactive materials in deep space. Radioisotope decay of carbon 14 for dating is a different process. This requires looking at specific materials, and measuring the decay. This is not what they are doing when looking at species of radioactive materials in deep space. They have to have the samples of known carbon 14 to establish the decay rates, they don't have those samples from deep space. They can only measure the combination of frequencies of gamma rays to identify categories of these emissions.
Calculations are based on previously measured values.
Acceleration is the speed of the rate of change, not the total change. If you are in a car 60 mph, and accelerate at 5 mph per minute for five minutes, and then drop to 0 mph per minute acceleration, you will then be moving at 85 mph, having change the rate of travel from 60 to 85, or 25 mph. It is the change in rate, not the speed of the change of rate that is important here. Maybe I am being nitpicky.
Originally posted by Pressthebutton
Ok, why now? You would think there would be a major reason for these sudden catastrophic changes in the Sun. I would REALLY like to know!