D -threads glossary

DARK MATTER

Matter that cannot be observed directly via electromagnetic radiation.

 A New Science of Heaven Chapter 8 - tells the history of a Swiss astronomer named Fritz Zwicky 1898-1974, who is credited for observing an anomaly while researching the Coma galaxy cluster.   His gravitational calculations showed discrepencies with his observation from Mount Palomar Observatory in California in 1933.  He concluded that unseen matter must exist there, in his observations, to account for the gravitational forces.  He would name the unseen anomoly- dunkle Materie ie Dark Matter.   The chapter expands on this portion of history and the struggle of Zwicky and others throughout the 1930's, 40's and 50's.

DOXOGRAPHISTS 

"...lost works recorded by later writers, but also by the varieties of ancient reportage that are extant. The modern name for these forms of reportage is ‘doxography’, which could be translated ‘tenet-writing’. Broadly speaking, doxography encompasses those writings, or parts of writings, in which the author presents philosophical views of some or other of the ancient philosophers or schools, in some or other areas, or on some or other topics, of philosophy, whether with or without presentation of the argumentation or analysis through which they offered philosophical support or reasons in favor of their ‘tenets’, and whether or not they also include critical evaluations and comments of the author's own. In other words, these are works (or sections of works) taking as their subject matter the tenets or doctrines of the philosophers, rather than independent works of philosophy ..." -online source Stanford Encyclopedia of Philosophy