Sieve of Eratosthenes Foundation of Geography
Contents 1 Life 2 Measurement of the Earth's circumference 3 "Father of geography" 4 Achievements 5 Prime numbers 6 Works 6.1 Titles 7 See also 7.1 Eponyms 8 References 9 Further reading 10 External links Life[edit]
The son of Aglaos,
Illustration showing a portion of the globe showing a part of the
African continent. The sunbeams shown as two rays hitting the ground
at
His knowledge of the size of Egypt was founded on the work of many
generations of surveying trips. Pharaonic bookkeepers gave a distance
between
That the distance between
"Father of geography"[edit] 19th-century reconstruction of Eratosthenes' map of the (for the Greeks) known world, c. 194 BC See also:
The first book was something of an introduction and gave a review of
his predecessors, recognizing their contributions that he compiled in
the library. In this book
Achievements[edit]
Prime numbers[edit] Sieve of Eratosthenes: algorithm steps for primes below 121 (including optimization of starting from prime's square). Main articles:
Platonikos
Hermes
Erigone
Chronographies
Olympic Victors
Περὶ τῆς ἀναμετρήσεως τῆς γῆς (On the
Measurement of the Earth)[32] (lost, summarized by Cleomedes)
Гεωγραϕικά (Geographika)[33] (lost, criticized by Strabo)
Arsinoe (a memoir of queen Arsinoe; lost; quoted by
See also[edit] Atlas portal Eponyms[edit]
References[edit] ^ The
Further reading[edit] Aujac, G. (2001). Eratosthène de Cyrène, le pionnier de la
géographie. Paris: Édition du CTHS. 224p.
Bulmer-Thomas, Ivor (1939–1940). Selections Illustlating the History
of Greek Mathematics. Cambridge, MA: Harvard University Press.
Diller, A (1934). "Geographical Latitudes in Eratosthenes, Hipparchus
and Posidonius". Klio. 27 (3): 258–269.
Dorofeeva, A. V. (1988). "
External links[edit] Wikimedia Commons has media related to Eratosthenes.
English translation of the primary source for Erastothenes and the
size of the earth at Roger Pearse.
Bernhardy, Gottfried: Eratosthenica Berlin, 1822 (PDF) (Latin/Greek),
Reprinted Osnabruck 1968 (German)
Eratosthenes' sieve in Javascript
About Eratosthenes' methods, including a Java applet
How the Greeks estimated the distances to the
Preceded by Apollonius of Rhodes Head of the Library of Alexandria Succeeded by Aristophanes of Byzantium v t e Ancient Greek astronomy Astronomers Aglaonice Agrippa Anaximander Andronicus Apollonius Aratus Aristarchus Aristyllus Attalus Autolycus Bion Callippus Cleomedes Cleostratus Conon Eratosthenes Euctemon Eudoxus Geminus Heraclides Hicetas Hipparchus Hippocrates of Chios Hypsicles Menelaus Meton Oenopides Philip of Opus Philolaus Posidonius Ptolemy Pytheas Seleucus Sosigenes of Alexandria Sosigenes the Peripatetic Strabo Thales Theodosius Theon of Alexandria Theon of Smyrna Timocharis Works
Instruments Antikythera mechanism Armillary sphere Astrolabe Dioptra Equatorial ring Gnomon Mural instrument Triquetrum Concepts Callippic cycle Celestial spheres Circle of latitude Counter-Earth Deferent and epicycle Equant Geocentrism Heliocentrism Hipparchic cycle Metonic cycle Octaeteris Solstice Spherical Earth Sublunary sphere Zodiac Influences Babylonian astronomy Egyptian astronomy Influenced Medieval European science Indian astronomy Medieval Islamic astronomy v t e Ancient Greek mathematics Mathematicians Anaxagoras Anthemius Archytas Aristaeus the Elder Aristarchus Apollonius Archimedes Autolycus Bion Bryson Callippus Carpus Chrysippus Cleomedes Conon Ctesibius Democritus Dicaearchus Diocles Diophantus Dinostratus Dionysodorus Domninus Eratosthenes Eudemus Euclid Eudoxus Eutocius Geminus Heron Hipparchus Hippasus Hippias Hippocrates Hypatia Hypsicles Isidore of Miletus Leon Marinus Menaechmus Menelaus Metrodorus Nicomachus Nicomedes Nicoteles Oenopides Pappus Perseus Philolaus Philon Porphyry Posidonius Proclus Ptolemy Pythagoras Serenus Simplicius Sosigenes Sporus Thales Theaetetus Theano Theodorus Theodosius Theon of Alexandria Theon of Smyrna Thymaridas Xenocrates Zeno of Elea Zeno of Sidon Zenodorus Treatises Almagest
Problems Problem of Apollonius Squaring the circle Doubling the cube Angle trisection Centers Cyrene Library of Alexandria Platonic Academy Timeline of Ancient Greek mathematicians Authority control WorldCat Identities VIAF: 69031816 LCCN: n82081073 ISNI: 0000 0000 8148 6989 GND: 118530674 SELIBR: 261031 SUDOC: 034042709 BNF: cb1248 |