Well, I'm not a scientist nor do I play one on TV, so could you explain why that should be held in high esteem.
I think they use beryllium-10 in ice cores.
Well, I'm not a scientist nor do I play one on TV, so could you explain why that should be held in high esteem.
It is a measure of cosmic ray density as it fluctuates with the magnetic field. Sun spots are an effect of solar magnetic flux and thus the measure relates to total Solar "Activity" as opposed to merely the Sun's brightness. It also is measure of the incidence cosmic ray activity on the galactic scale as well.