make use of frequently
71environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …
72Hellenistic biological sciences — R.J.Kankinson The five centuries that separate Aristotle’s death in 322 BC from Galen’s ascendancy in Rome in the latter part of the second century AD were fertile ones for the biological sciences, in particular medicine. Nor is the period solely …
73Contact lens — Contacts redirects here. For the software application, see Address book. A pair of contact lenses, positioned with the concave side facing upward …
74E-mail spam — E mail spam, also known as bulk e mail or junk e mail, is a subset of spam that involves nearly identical messages sent to numerous recipients by e mail. A common synonym for spam is unsolicited bulk e mail (UBE). Definitions of spam usually… …
75forestry — /fawr euh stree, for /, n. 1. the science of planting and taking care of trees and forests. 2. the process of establishing and managing forests; forestation. 3. forestland. [1685 95; < MF foresterie. See FOREST, RY] * * * Management of forested… …
76optics — /op tiks/, n. (used with a sing. v.) the branch of physical science that deals with the properties and phenomena of both visible and invisible light and with vision. [1605 15; < ML optica < Gk optiká, n. use of neut. pl. of OPTIKÓS; see OPTIC,… …
77nature, philosophy of — Introduction the discipline that investigates substantive issues regarding the actual features of nature as a reality. The discussion here is divided into two parts: the philosophy of physics and the philosophy of biology. In this… …
78The Seal of Confession — The Law of the Seal of Confession † Catholic Encyclopedia ► The Law of the Seal of Confession In the Decretum of the Gratian who compiled the edicts of previous councils and the principles of Church law which he published about 1151,… …
79Labor theory of value — The labor theories of value (LTV) are theories in economics according to which the values of commodities are related to the labor needed to produce them.There are many different accounts of labor value, with the common element that the value of… …
80Compass — This article is about the direction finding instrument used in navigation. For other uses, see Compass (disambiguation). A simple dry magnetic pocket compass …
