Hipparchus

HipparchusIn existographies, Hipparchus (190-120BC) (IQ:175|#267) (Cattell 1000:781) [RGM:637|1,330+] (Murray 4000:10|A) (GAE:#) was a Greek astronomer, geographer, and mathematician; founder of trigonometry; famous for his incidental discovery of precession of the equinoxes.

Overview
In c.160BC, Hipparchus learned how to plot the orbital movements of the sun, moon, and planets. [1]

Hipparchus also discovered the precession of the equinoxes; as summarized below:

Hipparchus

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Quotes | On
The following are quotes on Hipparchus:

Hipparchus was a lover of truth (phila-lēthēs).”
Ptolemy (c.150), Publication (Ѻ)

References
1. Scott, George P. (1985). Atoms of the Living Flame: an Odyssey into Ethics and the Physical Chemistry of Free Will (pg. 62). University Press of America.

External links
Hipparchus – Wikipedia.

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