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MVP seed record for Americana 1920 astronomy coverage. The production article parser will preserve sections and page references for long scientific entries.

ASTRONOMY (from Gr. ao-rpov, a star, and vtfitiv, to classify or arrange). The subject matter of astronomical science, considered in its widest range, comprehends all the matter of the universe which lies outside the limit of the earth's atmosphere. The seemin ...

... nd the life of man has played an important part in human history. For long ages astronomy and astrology (which might be called astromancy. on the same principle as " chiromancy ") were identified; and a distinction is made between " natural astrology," which p ...

... m. on Eucl. x., preserved in Arabic and published by Woepcke, 1856). Lastly, in astronomy he is credited by Ptolemy with an explanation of the motion of the planets by a system of epicycles; he also made researches in the lunar theory, for which he is said to ...

... now general that the Bible cannot be expected to use the language of scientific astronomy. Still, it is not certain that the shock of Copernicanism on supernatural Christianity is exhausted, (b) Geology has also won its battles, and few now try to harmonize it ...

AQUARIUS (the "Water-bearer" or "Cup-bearer"), in astronomy, the eleventh sign of the zodiac (?.«.), situated between Capricornus and Pisces. Its symbol is ==, representing part of a stream of water, probably in allusion to the fact that when the sun is in thi ...

... acity that he delivered his remarkably successful series of popular lectures on astronomy, which were continued from 1812 to 1845. In 1816, along with Gay-Lussac, he started the Annales de chimie et de physique, and in 1818 or 1819 he proceeded along with Biot ...

... . .4 woj in the "In temational Critical Commen t. " series.and G. Schiaparelli, Astronomy in the O. T., Eng. trans., Oxford, 1905, ch. iv.). According to one of the Greek legends about Areas, son of Lycaon, king of Arcadia, he was killed by his father and his ...

... i-V-i, the " argument " (or "amplitude") is the angle 6 given by tan 0—b/a. In astronomy, the term is used in connexion with the Ptolemaic theory to denote the angular distance on the epicycle of a planet from the true apogee of the epicycle; and the " equati ...

... ge, and the general principles of natural science. 2. r«pioipa»oC: De coelo: On astronomy, Ac. 3. rtpi Y«4«twt uU $A>p«i«: De teneralione et corruption*: On generation and destruction in general. 4. M«T«i>poXo>i«d: MeteorolorUa : On sublunary changes. 5-t rtpi ...

... or ARMILLARY SPHERE (from the Lat. armiltd, a bracelet), an instrument used in astronomy. In its simplest form, consisting of a ring fixed in the plane of the equator, the armilla is one of the most ancient of astronomical instruments. Slightly developed, it ...

... them. The trivium and the quadrivium ( grammar, logic and rhetoric — geometry, astronomy, music and arithmetic) have been habitually caHed arts, when some of them have been named in that sense in which they mean not arts but sciences, " only contemplating thi ...

... early every one of the modern instruments used for the observations of physical astronomy is a part of the perfected astrolabe. A collection of circles such as is the armillary sphere, if each circle were fitted with a view-tube, might be considered complete a ...

... e body of knowledge revealed by this method has sometimes been termed the " new astronomy." The development of the method has been greatly assisted by photography, while the application of photometric measurements has been a powerful auxiliary in the work. It ...

... in electrodynamics the position of the Newtonian law of gravitation in physical astronomy. In 1821 Michael Faraday (1791-1867), who was destined later on to do so much for the science of electricity, discovered electromagnetic rotation, having succeeded in cau ...

ELLIPTICITY, in astronomy, deviation from a circular or spherical form ; applied to the elliptic orbits of heavenly bodies, or the spheroidal form of such bodies. (Sec also COMPRESSION.)

... anslated him." Later Jewish legends represented him as receiving revelations on astronomy, &c., and as the first author; apparently following the Babylonian account which makes Enmeduranki receive instruction in all wisdom from the sun-god.1 Two apocryphal wor ...

... time marked by a distinctive condition or by a particular series of events. In astronomy the word is used for a moment from which time is measured, or at which a definite position of a body or a definite relation of two bodies occurs. For example, the positio ...

EQUATION OF THE CENTRE, in astronomy, the angular distance, measured around the centre of motion, by which a planet moving in an ellipse deviates from the mean position which it would occupy if it moved uniformly. Its amount is the correction which must be app ...

... f the earth ; this is termed the " geographical " or " terrestrial equator." In astronomy, the " celestial equator " is the name given to the great circle in which the plane of the terrestrial equator intersects the celestial sphere; it is consequently equidis ...

... he ecliptic and the celestial equator. This is the usual meaning of the term in astronomy. There are EQUITES two such points, opposite each other, at one of which the sun crosses the equator toward the north and at the other toward the south. They are called v ...

... h book, complains of the faults, both of omission and commission, of writers on astronomy, and cites as an example of the former the second theorem of Euclid's Phaenomena, whence, and from the interpolation of other proofs, David Gregory infers that this treat ...

... tury B.C. It is chiefly as an astronomer that his name has come down to us (see ASTRONOMY and ZODIAC). From a life by Diogenes Laertius, we learn that he studied at Athens under Plato, but, being dismissed, passed over into Egypt, where he remained for sixteen ...

... best of its kind (H. Keil, Grammatici Latini, vi.). He also studied philosophy, astronomy and geometry, and wrote works on those subjects, which, together with his consulship, formed the subject of a panegyric by Claudian. THEODORUS STUDlTA (A.D. 759-826), Gre ...

... isserand always found time to continue his important researches in mathematical astronomy, and the pages of the Comples rendus bear witness to his surprising activity. His writings relate to almost every branch of celestial mechanics, and are always distinguis ...

... oric and logic. The trivium and the quadrivium (arithmetic, music, geometry and astronomy) together made up what are known as the seven liberal arts (see EDUCATION: Schools). From the word in its original sense is derived the adjective " trivial " (postAug. La ...

UMBRA (Lat. for shade or shadow), in astronomy, the completely dark portion of the shadow of a heavenly body, filling the space within which the sun is entirely hidden. The body being supposed spherical, the umbra is a cone circumscribing both the sun and the ...

MVP seed record for New Gresham astronomy coverage. This gives the interface another clean-text source candidate for comparing the same topic.