Ptolemaic Alexandria. Oxford: Clarendon Press. Fuentes González, P. P., "Ératosthène de Cyrène", in R. Goulet (ed.), Dictionnaire des Philosophes Antiques...

In mathematics, the sieve of Eratosthenes is an ancient algorithm for finding all prime numbers up to any given limit. It does so by iteratively marking...

Eratosthenes crater is a relatively deep lunar impact crater that lies on the boundary between the Mare Imbrium and Sinus Aestuum mare regions. It forms...

Eratosthenes was a Greek scholar of the third century BC. It may also refer to: Eratosthenes (crater), a lunar impact crater named after him Eratosthenes...

"On the Murder of Eratosthenes" is a speech by Lysias, one of the "Canon of Ten" Attic orators. The speech is the first in the transmitted Lysianic corpus...

Eratosthenes of Athens (Ancient Greek: Ἐρατοσθένης) was one of the Thirty Tyrants elected to rule the city of Athens after the Peloponnesian War (431–404...

Eratosthenes Point (Bulgarian: нос Ератостен, romanized: nos Eratosthenes, IPA: ['nɔs ɛrɐto'stɛn]) is the ice-covered, rock-tipped northwest entrance...

"Against Eratosthenes" is a speech by Lysias, one of the ten Attic orators. In the speech, Lysias accuses Eratosthenes, a member of the Thirty Tyrants...

Katasterismoi, "Constellations" or "Placings Among the Stars") is a lost work by Eratosthenes of Cyrene. It was a comprehensive compendium of astral mythology including...

The Eratosthenes Seamount or Eratosthenes Tablemount is a seamount in the Eastern Mediterranean, in the Levantine basin about 100 kilometres (60 mi) south...

The Sieve of Eratosthenes is a 1999 sculpture by Mark di Suvero, installed on the Stanford University campus in Stanford, California. The artwork was added...

Eratosthenes to find upper or lower bounds on the number of primes within a given set of integers. Because it is a simple extension of Eratosthenes'...

The first known scientific measurement and calculation was done by Eratosthenes, by comparing altitudes of the mid-day sun at two places a known north–south...

period. The developments of Greek geography during this time, notably by Eratosthenes and Posidonius culminated in the Roman era, with Ptolemy's world map...

Origins of many of the concepts in geography can be traced to Greek Eratosthenes of Cyrene, who may have coined the term "geographia" (c. 276 BC – c. 195/194...

invention of a geographic coordinate system is generally credited to Eratosthenes of Cyrene, who composed his now-lost Geography at the Library of Alexandria...

million years ago to 1,100 million years ago. It is named after the crater Eratosthenes, which displays characteristics typical of craters of this age, including...

(fifth century BC), Timocharis, Aristyllus, Aristarchus of Samos, and Eratosthenes, among others. He developed trigonometry and constructed trigonometric...

was made by Lev Vasilevich Firsov, who compared 81 distances given by Eratosthenes and Strabo with the straight-line distances measured by modern methods...

1979 Mount Stromlo C.-I. Lagerkvist EOS 19 km MPC · JPL 3251 Eratosthenes 6536 P-L Eratosthenes September 24, 1960 Palomar PLS  · 15 km MPC · JPL 3252 Johnny...

ποταμός; c.f. Duane W. Roller, Eratosthenes' Geography, Princeton University Press, 2010, ISBN 978-0-691-14267-8, Eratosthenes (24 January 2010). p. 57. Princeton...

to his fascination with geography; he was well-read in the works of Eratosthenes and Pytheas, and perhaps wanted to discover the source of the river,...

the west to reach his goal. First, as far back as the 3rd century BC, Eratosthenes had correctly computed the circumference of the Earth by using simple...

Liberation Monument Luna Moth Walk I Old Union Fountain The Sieve of Eratosthenes The Stanford Legacy Statue of Alexander von Humboldt Statue of Benjamin...

Huainanzi, in the 2nd century BC, Chinese astronomers effectively inverted Eratosthenes' calculation of the curvature of the Earth to calculate the height of...

generated by a certain "sieve". This sieve is similar to the sieve of Eratosthenes that generates the primes, but it eliminates numbers based on their position...

of the Peloponnesus and that the Moon reflected the light of the Sun. Eratosthenes estimated the distance between Earth and the Sun in the third century...

by Eratosthenes in about 240 BC. Estimates of the error of Eratosthenes's measurement range from 0.5% to 17%. For both Aristotle and Eratosthenes, uncertainty...

181–2 [= Eratosthenes, Catasterismi 13 (Hard 2015, p. 44; Olivieri, p. 17)]; Musaeus apud Hyginus, De Astronomica 2.13.6. According to Eratosthenes, Musaeus...

Otherwise, only fragmentary descriptions of Aristarchus' idea survive. Eratosthenes, using the angles of shadows created at widely separated regions, estimated...