13. 文艺复兴时期创造力和科学成就的顶峰：带有机械痕迹的天球。（c1540-c1550） by Anonymous 高清作品[17%]

The culmination of Renaissance ingenuity and scientific achievement: Celestial sphere with traces of a mechanism. (c1540-c1550)

材质 :Celestial sphere, two large brass fretwork hemispheres joined at the equator with two sets of rings. The first set consists of five parallel horizontal rings representing the Equator, Tropics of Cancer and Capricorn, and both polar circles as well as vertical colures and meridians intersecting both poles and crossing the equator at 30 degrees. The second set consists of six rings intersecting the equatorial poles at an angle of 23.5 degrees – this angle would allow the now-missing inner terrestrial sphere to consistently point to the north and south equatorial poles of the celestial sphere. Placed atop this set of 17 rings are the 48 Ptolemaic constellations and two non-Ptolemaic ones. The Lynx (LE LYNX) located between the Great Bear and Leo and the constellation of Eridanus, depicted as a naked female figure, were both added later. The planetary symbols and series of stars up to five magnitudes are engraved on the figures of each constellation. The celestial sphere is mounted on a graduated brass meridian ring held in place by two recesses on the horizon ring. One face of the meridian is stamped with a scale of 360 degrees, and an hour-ring and index is mounted at the North Pole. A set of four brackets support the horizon ring with engraved acanthus leaf decoration and foliage, which terminate in scrolls with a pierced opening holding a peg attached to the horizon. The upper face of the horizon features an inner scale of 360 degrees divided into 12 signs for the zodiac labelled in Latin and depicted with its symbol. An outer scale depicts the Julian calendar with the names of the months stamped in Roman capital letters. The first point of Aries coincides with the 11th of March. The 12 winds are engraved at the outer edge as blowing figures. The sphere is supported by a chased-brass circular base with four grotesque human figures amongst arabesque decoration. The sphere rests on a cylindrical marble stand with minor chips consistent with age. 尺寸 :86 × 33 × 33 cm Other

文艺复兴时期创造力和科学成就的顶峰：带有机械痕迹的天球。（c1540-c1550）-匿名的

英文名称:The culmination of Renaissance ingenuity and scientific achievement: Celestial sphere with traces of a mechanism. (c1540-c1550)-Anonymous

15. 雅各布斯·普拉斯夏尔旧大师II` by Jacobus Plasschaert 高清作品[17%]

DO-Jacobus Plasschaert - Alte Meister II
图片文件像素：4600 x 3500 px

雅各布斯·普拉斯夏尔旧大师II-

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（1739年至1765年左右活跃于布鲁日）
特罗普·欧伊尔（Trompe l’oeil）绘画，国王查理一世（King Charles I）肖像版画，1734年出版的《福格日记》（Fog’s Journal）和木制后墙前带有密封蜡的羽毛笔，
帆布油画，60.5 x 30.5厘米，框架

17. 管道组合，曼丹的Medecine神秘管道`Portfolio of Pipes, Medecine mystery Pipes of the Mandans by George Catlin 高清作品[17%]

AF-Portfolio of Pipes, Medecine mystery Pipes of the Mandans

图片文件尺寸: 6800×5062 px

管道组合，曼丹的Medecine神秘管道-卡特林

-A selection of Indian pipes in “Catlin’s North 美国艺术家 Indian Collection”.
The males amongst the North 美国艺术家 Indians all smoke, using instead of tobacco, several narcotics, such as inner bark of Red Willow, sumach leaves & c. which they call “k’nick-k’neck”, when it is prepared for smoking; to which, when they can get it, they add a small portion of tobacco.
Each man manufactures his own pipe, the bowl of which is generally carved in spar, in marble, stealite or potstone, found in their countries.
Pipes amongst the Am Indians are not only matters of luxury in the hands of all private individuals, where they are always emblems of peace and tendered as friendly salutations; but are kept in all tribes by the chiefs, as instruments for solemnizing Treaties; in which case they are public property considered sacred, and denominated “Calumets”, (or pipe of peace).

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