Diodorus of Alexandria
Encyclopedia
Diodorus of Alexandria or Diodorus Alexandrinus was a gnomon
icist, astronomer and a pupil of Posidonius
.
, known as Analemma.
A small number of sentences having survived the centuries and attributed to him are known; these comment on:
the differences (for the purpose of defining) between astronomy and natural science (physiologia), the word meanings for cosmos and star, the nature of (the things being) stars and Γαλαξίαςor [Galaxias kuklos,(those things which are altogether stars are called today the Milky Way
)].
.
In his dealings with astronomy he was known to Marinus
, his commentary on Euclid's Data containing quotes of Diodorus's opinions on the meaning of a term.
Gnomon
The gnomon is the part of a sundial that casts the shadow. Gnomon is an ancient Greek word meaning "indicator", "one who discerns," or "that which reveals."It has come to be used for a variety of purposes in mathematics and other fields....
icist, astronomer and a pupil of Posidonius
Posidonius
Posidonius "of Apameia" or "of Rhodes" , was a Greek Stoic philosopher, politician, astronomer, geographer, historian and teacher native to Apamea, Syria. He was acclaimed as the greatest polymath of his age...
.
Writings
He wrote the first discourse on the principles of the sundialSundial
A sundial is a device that measures time by the position of the Sun. In common designs such as the horizontal sundial, the sun casts a shadow from its style onto a surface marked with lines indicating the hours of the day. The style is the time-telling edge of the gnomon, often a thin rod or a...
, known as Analemma.
A small number of sentences having survived the centuries and attributed to him are known; these comment on:
the differences (for the purpose of defining) between astronomy and natural science (physiologia), the word meanings for cosmos and star, the nature of (the things being) stars and Γαλαξίαςor [Galaxias kuklos,(those things which are altogether stars are called today the Milky Way
Milky Way
The Milky Way is the galaxy that contains the Solar System. This name derives from its appearance as a dim un-resolved "milky" glowing band arching across the night sky...
)].
Those who knew of him
He was known to EudorosEudorus of Alexandria
Eudorus of Alexandria was an ancient Greek philosopher, and a representative of Middle Platonism. He attempted to reconstruct Plato's philosophy in terms of Pythagoreanism....
.
In his dealings with astronomy he was known to Marinus
Marinus
Marinus may refer to:*Marinus , a crater on the Moon*Marinus , for people named Marinus*Marinus of Tyre , Greek geographer, cartographer and mathematician*Marinus of Caesarea , Roman soldier, christian martyr and saint...
, his commentary on Euclid's Data containing quotes of Diodorus's opinions on the meaning of a term.