By Anne Marie Helmenstine, Ph.D. Words have precise meanings in science. For example, 'theory', 'law', and 'hypothesis' don't all mean the same thing. to top. The atom is proposed. A few decades after Empedocles, Democritus, another Greek who lived from 460 BCE to 370 BCE, developed a new theory of matter that. Natural Law. The unwritten body of universal moral principles that underlie the ethical and legal norms by which human conduct is sometimes evaluated and governed. The word chemistry comes from the word alchemy which was an earlier set of practices that encompassed elements of chemistry, metallurgy, philosophy, astrology. The following papers from the history of chemistry are available as html files. Many are seminal papers in their fields. Some are interesting curiosities. What is a Scientific Theory? Scientific Law? Scientific Hypothesis? These are important and common questions. A lot of information from various sources. In contrast to Bingham's hypothesis that Machu Picchu was the birthplace of the first Inca and the hearth area of the Inca civilization, current scholars believe that. The next, `The theory of the book is bad, full of morbid fancies, spiritualistic ideas, and unnatural characters. By Anne Marie Helmenstine, Ph.D. Scientific Law Definition. A law in science is a generalized rule to explain a body of observations in the form of a verbal or. The Concordia and De jure et justititia (that is, his two most famous works) receive the greatest attention in the contributed chapters, which are organized into.