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pappus    
n. 冠毛

冠毛

pappus
n 1: calyx composed of scales or bristles or featherlike hairs
in plants of the Compositae such as thistles and dandelions


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  • Pappus of Alexandria | Greek Mathematician Ancient Geometer - Britannica
    Pappus of Alexandria was the most important mathematical author writing in Greek during the later Roman Empire, known for his Synagoge (“Collection”), a voluminous account of the most important work done in ancient Greek mathematics
  • Pappus (290 - 350) - Biography - MacTutor History of Mathematics
    Pappus, of Alexandria, philosopher, lived about the time of the Emperor Theodosius the Elder [379 AD - 395 AD], when Theon the Philosopher, who wrote the Canon of Ptolemy, also flourished
  • Pappus - Master Gardeners of Northern Virginia
    pappus: an appendage of the cypsela (fruit) of the Asteraceae consisting of one to many bristles, awns, scales, setae, or coronas that assists in seed dispersal The word pappus might bring to mind dandelions and the “puff ball” seed heads you may have played with in your youth
  • Pappus - definition of pappus by The Free Dictionary
    A modified calyx, composed of scales, bristles, or featherlike hairs, in plants of the composite family, such as the dandelion and the thistle [Latin, old man, down on certain seeds, from Greek pappos; see papa in Indo-European roots ] American Heritage® Dictionary of the English Language, Fifth Edition
  • Pappus | EBSCO Research Starters
    Pappus of Alexandria was a significant figure in the history of mathematics, active during the decline of Greek mathematical tradition, roughly between 284 and 305 CE Though little is known about his personal life, he is recognized as a philosopher and mathematician, likely holding a teaching position
  • Biography:Pappus of Alexandria - HandWiki
    Pappus of Alexandria ( ˈpæpəs ; Greek: Πάππος ὁ Ἀλεξανδρεύς; c 290 – c 350 AD) was a Greek mathematician of Late Antiquity known for his Synagoge (Συναγωγή) or Collection (c 340), [1] and for Pappus's hexagon theorem in projective geometry
  • What is a pappus? - Answers
    Pappus, in a composite flower, is the element of the individual disk and ray flowers that surrounds the flower structure, in the same manner at the base as calyx does in a non-compound flower
  • Archimedean Solids (Pappus) - New York University
    This book gives the first known mention of the thirteen “Archimedean solids”, which Pappus lists and attributes to Archimedes However, Archimedes makes no mention of these solids in any of his extant works
  • Pappus of Alexandria - (Calculus II) - Vocab, Definition . . . - Fiveable
    Pappus of Alexandria was a Greek mathematician and engineer who lived in the 4th century AD He is known for his significant contributions to the fields of geometry, mechanics, and the study of centers of mass and moments





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