digital transmission hierarchy
61anthropology — anthropological /an threuh peuh loj i keuhl/, anthropologic, adj. anthropologically, adv. /an threuh pol euh jee/, n. 1. the science that deals with the origins, physical and cultural development, biological characteristics, and social customs… …
62Class 5 telephone switches — A Class 5 switch, in United States telephony jargon, refers to a telephone switch or exchange located at the local telephone company s central office, directly serving subscribers. Class 5 switch services include basic dial tone, calling features …
63Communication with extraterrestrial intelligence — (CETI) is a branch of the search for extraterrestrial intelligence that focuses on composing and deciphering messages that could theoretically be understood by another technological civilization. The best known CETI experiment was the 1974… …
64Usenet — A diagram of Usenet servers and clients. The blue, green, and red dots on the servers represent the groups they carry. Arrows between servers indicate newsgroup group exchanges (feeds). Arrows between clients and servers indicate that a user is… …
65Ceramic engineering — Simulation of the outside of the Space Shuttle as it heats up to over 1,500 °C (2,730 °F) during re entry into the Earth s atmosphere Ceramic engineering is the science and technology of creating objects from inorganic, non metallic… …
66Pseudo-Dionysius the Areopagite — Full name Pseudo Dionysius the Areopagite Other names Pseudo Dionysius , Pseudo Denys , mistakenly identified as Dionysius the Areopagite Born unknown, 5th to 6th century AD Died unknown, 5th to 6th century AD Era Ancient philosop …
67Burglar alarm — Silent alarm redirects here. For the album, see Silent Alarm (album). Burglar (or intrusion), fire and safety alarms are all electronic today. Sensors are connected to a control unit via a low voltage hardwire or narrowband RF signal which is… …
68Pixel — This article is about the picture element. For other uses, see Pixel (disambiguation). This example shows an image with a portion greatly enlarged, in which the individual pixels are rendered as little squares and can easily be seen …
69automata theory — Body of physical and logical principles underlying the operation of any electromechanical device (an automaton) that converts information input in one form into another, or into some action, according to an algorithm. Norbert Wiener and Alan M.… …
70Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …
