DOI Seite / Zitierlink:
https://doi.org/10.11588/diglit.19574#0031
A P P
After it has been dug out of the earth, it is put into large
crucibles, and fufed with a violent fire, and afterwards poured
into cones or antimonial horns; which is the common or crude
Antimony of the fhops; the apex of which is always the beffc
and purcft part, as the bafis or broadeft part is the fouleft.
The ufes of Antimony are numerous and important. It is
mingled with tin, to make it white and harder ; and with bell-
metal, to render the found more clear; and is a common in-
gredient in fpecula, or burning concaves, ferving to give them
a finer polifh. It is a general amftant in melting of metals.
A. P. M. A. fignifies Abbas Primaticcius, inv. Marc Antho-
ny, exc. This mark is found in a plate, reprefenting a fhepherd
lying under a tree ; and another holding his hand on an univer-
sal planifphere.
APPARENT Magnitude, of any object, is the magnitude
thereof, fuch as it appears to the eye.
Apparent Pkf, of any object, in optics, is that wherein
it appears, when feen through one or more glafles ; the Appa-
rent place is different from the real one ; for when, by refraction
through glafles, that pencil of rays which falls on the pupil of
the eye, from each point of any near object, is made to flow
as clofe together as that which comes from a diftant one; or
when, by the fame means, the rays, coming from diftant ob-
jects, are made to diverge as much as if they flowed from near
ones ; then the eye mult necefTarily fee the place of the object
changed, which change is its Apparent place.
APPEARANCE, in perfpective, is the reprefentation or
projection of a figure or object upon the perfpective plane.
The Appearance of an objective right-line is always a right-
line.
Dlrecl Appearance, in optics, is the view or fight of an
object by direct rays, without either refraction or reflection.
APELLES, according to Pliny, furpalTcd all that ever went
before him, or came after him ; and was born in the 112th
Olympiad, after the building of Rome 420 years, and 324 be-
fore Chrift.
Strabo fays he was born in Ephefus, where he put himfelf
apprentice to Pamphilus.
APOLLO, is reprefented as a young man, without a beard,
and rays of light about his head, having, in one hand, a harp
and the three graces, and in the other a fhield and arrows.
He is alfo reprefented with long curled hair, crowned with
laurel, in a purple robe, holding a filver bow in his hanoV, and
placed on a throne of emeralds. He was {tiled the god of wif-
dom, phytic, mufic, and learning.
- APPREHENSION, is reprefented, in painting, by a young
2 lady
After it has been dug out of the earth, it is put into large
crucibles, and fufed with a violent fire, and afterwards poured
into cones or antimonial horns; which is the common or crude
Antimony of the fhops; the apex of which is always the beffc
and purcft part, as the bafis or broadeft part is the fouleft.
The ufes of Antimony are numerous and important. It is
mingled with tin, to make it white and harder ; and with bell-
metal, to render the found more clear; and is a common in-
gredient in fpecula, or burning concaves, ferving to give them
a finer polifh. It is a general amftant in melting of metals.
A. P. M. A. fignifies Abbas Primaticcius, inv. Marc Antho-
ny, exc. This mark is found in a plate, reprefenting a fhepherd
lying under a tree ; and another holding his hand on an univer-
sal planifphere.
APPARENT Magnitude, of any object, is the magnitude
thereof, fuch as it appears to the eye.
Apparent Pkf, of any object, in optics, is that wherein
it appears, when feen through one or more glafles ; the Appa-
rent place is different from the real one ; for when, by refraction
through glafles, that pencil of rays which falls on the pupil of
the eye, from each point of any near object, is made to flow
as clofe together as that which comes from a diftant one; or
when, by the fame means, the rays, coming from diftant ob-
jects, are made to diverge as much as if they flowed from near
ones ; then the eye mult necefTarily fee the place of the object
changed, which change is its Apparent place.
APPEARANCE, in perfpective, is the reprefentation or
projection of a figure or object upon the perfpective plane.
The Appearance of an objective right-line is always a right-
line.
Dlrecl Appearance, in optics, is the view or fight of an
object by direct rays, without either refraction or reflection.
APELLES, according to Pliny, furpalTcd all that ever went
before him, or came after him ; and was born in the 112th
Olympiad, after the building of Rome 420 years, and 324 be-
fore Chrift.
Strabo fays he was born in Ephefus, where he put himfelf
apprentice to Pamphilus.
APOLLO, is reprefented as a young man, without a beard,
and rays of light about his head, having, in one hand, a harp
and the three graces, and in the other a fhield and arrows.
He is alfo reprefented with long curled hair, crowned with
laurel, in a purple robe, holding a filver bow in his hanoV, and
placed on a throne of emeralds. He was {tiled the god of wif-
dom, phytic, mufic, and learning.
- APPREHENSION, is reprefented, in painting, by a young
2 lady