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These cosmogonies were part of the new emphasis of science in seeking rational explanations of the features of the world. This period was marked by a great deal of field geology rather than grand cosmogonies.
It became clear that there had been significant changes in the Earth's topography over time and that these changes could neither be accounted for by natural processes operating during the brief nor by the postulated Noachian flood.
While most leaks have been found within plant boundaries, some have migrated offsite.
But none is known to have reached public water supplies.
In this period a number of comprehensive cosmogonies were proposed.
These were long on armchair speculation and short on substantive supporting evidence.
Tritium, which is a radioactive form of hydrogen, has leaked from at least 48 of 65 sites, according to U. Nuclear Regulatory Commission records reviewed as part of the AP's yearlong examination of safety issues at aging nuclear power plants.
Leaks from at least 37 of those facilities contained concentrations exceeding the federal drinking water standard — sometimes at hundreds of times the limit.
In short, Genesis was an allegory and not literal history. The lexicon of isotopes includes three other frequently used terms: had been found to contain small quantities of several radioactive substances never before observed. is used to describe particular isotopes, notably in cases where the nuclear rather than the chemical properties of an atom are to be emphasized.If, in the year AD 1600, you had asked an educated European how old the planet Earth was and to recount its history he would have said that it was about 6000 years old and that its ancient history was given by the biblical account in Genesis.If you asked the same question of an educated European in AD 1900 you would have received a quite different answer.