Question: There were two main techniques in Greco-Roman mosaic: opus vermiculatum used tiny tesserae, typically cubes of 4 millimeters or less, and was produced in workshops in relatively small panels which were transported to the site glued to some temporary support. The tiny tesserae allowed very fine detail, and an approach to the illusionism of painting. Often small panels called emblemata were inserted into walls or as the highlights of larger floor-mosaics in coarser work. The normal technique was opus tessellatum, using larger tesserae, which was laid on site. There was a distinct native Italian style using black on a white background, which was no doubt cheaper than fully coloured work.
Try to answer this question if possible: Why were black and white pieces used in most italian mosaics?
Answer: cheaper than fully coloured work
Question: As the King's confidence in de Melo increased, the King entrusted him with more control of the state. By 1755, Sebastiao de Melo was made Prime Minister. Impressed by British economic success that he had witnessed from the Ambassador, he successfully implemented similar economic policies in Portugal. He abolished slavery in Portugal and in the Portuguese colonies in India; reorganized the army and the navy; restructured the University of Coimbra, and ended discrimination against different Christian sects in Portugal.
Try to answer this question if possible: Who abolished slavery in Portugal?
Answer: Sebastiao de Melo
Question: The use of such contractions is as old as Chinese characters themselves, and they have frequently been found in religious or ritual use. In the Oracle Bone script, personal names, ritual items, and even phrases such as () shou you "receive blessings" are commonly contracted into single characters. A dramatic example is that in medieval manuscripts pusa "bodhisattva" (simplified: ) is sometimes written with a single character formed of a 22 grid of four (derived from the grass radical over two ). However, for the sake of consistency and standardization, the CPC seeks to limit the use of such polysyllabic characters in public writing to ensure that every character only has one syllable.
Try to answer this question if possible: What seeks to limit the use of polysyllabic characters?
Answer: CPC
Question: The ranging signals are based on the CDMA principle and have complex structure typical of Galileo or modernized GPS. Similar to the other GNSS, there will be two levels of positioning service: open and restricted (military). The public service shall be available globally to general users. When all the currently planned GNSS systems are deployed, the users will benefit from the use of a total constellation of 75+ satellites, which will significantly improve all the aspects of positioning, especially availability of the signals in so-called urban canyons. The general designer of the COMPASS navigation system is Sun Jiadong, who is also the general designer of its predecessor, the original BeiDou navigation system.
Try to answer this question if possible: How many satellites will the COMPASS navigation system use?
Answer:
75+ satellites