sign propagation
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Radio propagation beacon — A radio propagation beacon is a radio beacon, whose purpose is the investigation of the propagation of radio signals. Most radio propagation beacons use amateur radio frequencies. They can be found on HF, VHF, UHF, and microwave frequencies.… … Wikipedia
Neon sign — … Wikipedia
Masonry (Freemasonry) — Masonry (Freemasonry) † Catholic Encyclopedia ► Masonry (Freemasonry) The subject is treated under the following heads: I. Name and Definition; II. Origin and Early History; III. Fundamental Principles and Spirit; IV.… … Catholic encyclopedia
Mirza Ghulam Ahmad — Founder of The Ahmadiyya Movement Mirza Ghulam Ahmad c. 1897 Claim as Messiah c. 1891 … Wikipedia
Appleton-Hartree equation — The Appleton Hartree equation, sometimes also referred to as the Appleton Lassen equation is a mathematical expression that describes the refractive index for electromagnetic wave propagation in a cold magnetized plasma. The Appleton Hartree… … Wikipedia
Prophecies of Mirza Ghulam Ahmad — Mirza Ghulam Ahmad is known to have made many prophecies during his lifetime. Some were of an intuitive nature, pertaining to everyday matters or events which are said to have been fulfilled immediately after having been foreseen and may be seen… … Wikipedia
Antenna (radio) — Whip antenna on car … Wikipedia
environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… … Universalium
Timeline of Christian missions — This timeline of Christian missions chronicles the global expansion of Christianity through a sampling of missionary outreach events. A more general timeline of Christianity and History of Christianity is also available. Apostolic Age Earliest… … Wikipedia
American Family Association — Formation 1977 by Rev. Donald Wildmon Type Christian right organization Headquarters Tupelo, Miss … Wikipedia
fluid mechanics — an applied science dealing with the basic principles of gaseous and liquid matter. Cf. fluid dynamics. [1940 45] * * * Study of the effects of forces and energy on liquids and gases. One branch of the field, hydrostatics, deals with fluids at… … Universalium
