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.
Two broad categories of classification methods are relative dating and absolute dating.
Though using similar methods, these two techniques differ in certain ways that will be discussed in this article.
The visualization techniques are presented first because of their ease and popularity.
Many ancient techniques have remained hidden for centuries, gems of wisdom covered by the trappings of religious ritual.
To simplify this confusing and often misunderstood body of information, the following out-of-body techniques are divided into five categories; Visualization, Dream Conversion, Affirmations, Hypnosis, and Sound.
Application of scientific methods, also called absolute dating, started to be used in the 1980s and since then has increased more and more its significance, as judged by the large number of papers published in the last two decades on this subject (Rowe Absolute and relative dating methods have been used to establish tentative chronologies for rock art.
Relative dating refers to non-chronometric methodologies that produce seriation based on stylistic comparison and stratigraphic assumptions.