Category:Definitions/Named Definitions/Tusi

This category contains definitions named for Nasir al-Din al-Tusi.

Multi-discipline scientist and prolific writer who pre-empted several later Western scientists:

• Darwin with his ideas on evolution
• Copernicus on his heliocentric view of the solar system
• Galileo with his insight into the nature of the Milky Way.

Calculated the value of $51'$ for the precession of the equinoxes.

The first to separate the science of trigonometry, particularly spherical trigonometry, from that of astronomy.