Getting values and understanding their meaning and in particular determining the exact age of a rock since its solidification involves

In addition to long-life radionuclides, a number of short-life radionuclides were present in the primitive solar system. Most of them

There are two methods for determining the absolute age of a rock, so-called radiochronology: The isochronous method The cosmogenic nuclide

It was to solve the problem of spatial resolution that in 1960 William E.Gordon of Cornell University proposed to build

In 1666, during an optical experiment that he later described as “crucial,” Newton discovered the specter of light by playing