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În prealabil postat de AlbertX
Uite aici un studiu serios despre datarea radiometrica - Dr. Roger C. Wiens, PhD in Physics.
http://www.asa3.org/ASA/resources/Wiens2002.pdf
Nu ai inteles mare lucru, asa-i ? Mai citeste acest studiu de 10 mii de ori, poate intelegi si tu ceva pana la urma.
http://www.asa3.org/ASA/resources/Wiens2002.pdf
Nota despre Dr. Roger C. Wiens:
Dr. Wiens has a PhD in Physics, with a minor in Geology. His PhD thesis was on isotope ratios in meteorites, including surface exposure dating. He was employed at Caltech's Division of Geological & Planetary Sciences at the time of writing the first edition. He is presently employed in the Space & Atmospheric Sciences Group at the Los Alamos National Laboratory.
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Um.. nu vad cum acest studiu te-ar ajuta sa demonstezi ce spui. Acest studiu este dedicat crestinilor, ca acestia sa inteleaga ca metodele de datare sunt cat de cat precise, si ca pamantul are in jur de 4.3-4.5 miliarde de ani.
"Beyond this, scientists have now used a €śtime machine€ť to prove that the half-lives of radioactive species were the same millions of years ago. This time machine does not allow people to actually go back in time, but it does allow scientists to observe ancient events from a long way away. The time machine is called the telescope. Because Gods universe is so large, images from distant events take a long time to get to us.
Telescopes allow us to see supernovae (exploding stars) at distances so vast that the pictures take hundreds of thousands to millions of years to arrive at the Earth. So the events we see today actually occurred hundreds of thousands to millions of years ago. And what do we see when we look back in time?
Much of the light following a supernova blast is powered by newly created radioactive parents. So we observe radiometric decay in the supernova light. The half-lives of decays occurring hundreds of thousands of years ago are thus carefully recorded! These half-lives completely agree with the half-lives measured from decays occurring today. We must conclude that all evidence points towards unchanging radioactive half-lives.
Some individuals have suggested that the speed of light must have been different in the past, and that the starlight has not really taken so long to reach us. However, the astronomical evidence mentioned above also suggests that the speed of light has not changed, or else we would see a significant apparent change in the half-lives of these ancient radioactive decays. "
De fapt, iti multumesc ca ai postat acest studiu! O dovata pentru miliardele de ani ale Universului! Deci Albert, te rog sa citesti cu atentie acest studiu! Este foarte interesant, si o sa te fascineze!