Wikipedia has no reference of Democritus' contribution to Trig. He contributed to Atomic theory, and to Geometry. Some Geometry and Trig. topics overlap, so maybe that is what you are referring to.
democritus was greek philosophers.
Democritus thought that the world was composed of atoms .
Democritus achievements are his atomic theory and his book -on the little order of the world- which describes his atomic theory.
nothing
Democritus was born in Abdera, Thrace around 460 BC and died around 370 BC.
Thales, Democritus, Pythagoras, Aristotle, Archimedes, Euclid, Erastosthenes, Hipparchus,
atoms
he allowed us to understand a basic building block leading to the atomic clock and bomb
nothing
hipparchus
Democritus's main contribution to physics was discovery of the atom. He devoted his life to finding out as much as possible to create what is thought to be the first atomic theory.
He defined the spherical triangle
The fungal fish recorder.
He introduced coordinated geometry
There is no Contribution of Thales in the field of trignometry.........
Who invent the matter that could be divided into tiny atoms.
spherical and plane trigonometry? :p