You are looking at  231-240 of 254 articles  for:

  • Science and Technology x
Clear All

View:

Teucer (4), of Babylon, astrologer  

William David Ross

Online publication date:
Mar 2016
Teucer (4) of Babylon (probably the Babylon in Egypt), astrologer, is conjectured to belong to the 1st cent. ce. He expounded the traditional astrology of Egypt and united with it oriental and Greek ... More

Theaetetus, of Athens, geometer, c. 415–369 BCE  

Wilbur R. Knorr and Reviel Netz

Online publication date:
Mar 2016
Theaetetus (c. 415–369 bce) of Athens, geometer, initiated the special definitions and theory of irrational lines fundamental for book 10 of Euclid's Elements (cf. Eudemus, cited by Pappus, ed. ... More

Themison  

J. T. Vallance

Online publication date:
Mar 2016
Themison of *Laodicea (probably Lycus), a pupil of *Asclepiades(3) of Bithynia, probably lived towards the end of the 1st cent. bce and spent at least part of his working life in Rome. ... More

Theodorus (2), of Cyrene, geometer, fl. late 5th cent. BCE  

Wilbur R. Knorr

Online publication date:
Mar 2016
Theodorus (2) (fl. late 5th cent. bce) of *Cyrene, geometer, portrayed in *Plato(1)'s Theaetetus as a former disciple of *Protagoras, an associate of *Socrates, and a teacher of *Theaetetus. Plato ... More

Theodosius (4), of Bithynia, astronomer and mathematician  

G. J. Toomer

Online publication date:
Mar 2016
Theodosius (4) of Bithynia, astronomer and mathematician (fl. c.100 bce), wrote three treatises on elementary ‘spherics’: Σφαιρικά, in three books, dealing with great and small circles on the sphere; ... More

Theon (4), of Alexandria, mathematical commentator  

G. J. Toomer

Online publication date:
Mar 2016
Theon of *Alexandria (1) (fl. 364 ce), mathematical commentator. Extant works are (1) a commentary on *Ptolemy (4)'s Almagest (the sections on bk. 11 and parts of other books are lost); ... More

Thessalus (1), of Cos, Greek author, late 5th cent. BCE  

J. T. Vallance

Online publication date:
Mar 2016
Thessalus of *Cos (fl. late 5th cent. bce), according to some a ‘son of Hippocrates’ (see hippocrates(2)). Next to nothing is known of him, yet attempts were made in later antiquity by *Galen and ... More

Thessalus (2), physician, 1st cent. CE  

J. T. Vallance

Online publication date:
Mar 2016
A doctor from *Tralles. He worked in Rome and was probably dead by ce 79. None of his writings survive, but he is often mentioned by other medical writers. *Galen (10. 7 Kühn) claims that he wrote to ... More

time-reckoning  

A. T. Grafton

Online publication date:
Mar 2016
Ancient culture knew a range of expedients for dividing the twenty-four hours of the day, for marking the succession of days in the month or year, and for dating important historical events. *Hesiod ... More

Timocharis  

G. J. Toomer and Alexander Jones

Online publication date:
Mar 2016
Timocharis, astronomer at *Alexandria (1), made observations between 295 and 272 bce reported by *Ptolemy(4). These record positions of the moon and Venus with respect to fixed stars. He also ... More

View: