3 radioactive elements commonly used in the absolute dating
At the heart of the spectroscope lay a glass prism, which split light coming from a flame into a spectrum – much in the same way that raindrops can split sunlight into a rainbow.
The spectroscope magnified the spectrum to allow it to be studied in detail.
However, by itself a fossil has little meaning unless it is placed within some context.Smithson Tennant also discovered osmium at the same time.Iridium’s name comes from the Latin word ‘iris’, meaning rainbow, because many of its salts are highly colored. Initially inspired by the development of batteries, it covers technology in general and includes some interesting little known, or long forgotten, facts as well as a few myths about the development of technology, the science behind it, the context in which it occurred and the deeds of the many personalities, eccentrics and charlatans involved."Either you do the work or you get the credit" Yakov Zel'dovich - Russian Astrophysicist Fortunately it is not always true.