Does radiometric dating tell us past
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Alpha decay typically occurs in nuclei that are so big that they can’t be stable.
No one, not even a scientist, likes to see a theory that has cost a great deal of money and much of one's personal time and effort, go up in smoke.
Length contraction is a symptom of “tilted now planes”.
For someone moving past you events physically in front of them happen earlier than they should (according to you), and events physically behind them happen later (according to you).
Either will just pull on you in a very uniform way.
They don’t grab a few cells at a time and re-write you love life or change your mood. Point is, our understanding of the known forces of the universe preclude the idea of the planets and stars having any direct influence on people.
That is, all physical laws are exactly the same whether you’re moving (at a constant speed) or not. The traditional example is the barn-running pole-vaulter thought experiment.
A pole vaulter runs through a barn very, very fast with a pole that (when it’s standing still) is about as long as the barn.
The purpose of this chapter is to explain the process of radioactive decay and its relationship to the concept of half-life.
The primary intent is to demonstrate how the half-life of a radionuclide can be used in practical ways to “fingerprint” radioactive materials, to “date” organic materials, to estimate the age of the earth, and to optimize the medical benefits of radionuclide usage. Remember that a radionuclide represents an element with a particular combination of protons and neutrons (nucleons) in the nucleus of the atom.
From her point of view the barn, which is rushing past her, is contracted so that her pole (briefly) is sticking out of both ends of the barn.
The farmer, who leaves the doors to his barn open, because this happens all the time, sees the vaulter and her pole contracted so that (briefly) the entire pole is So, time dilation, length contraction, and the rearrangement of events are just three sides of the same weirdly shaped coin.
For example, in 1990, Richard Leakey himself said that, "If pressed about man's ancestry, I would have to unequivocally say that all we have is a huge question mark.