Hipparchus was one of the first mathematicians who trigonometrically defined his astronomical observations through stereographic projection, which is incredibly awe-inspiring! 

To read the podcast's transcripts and to see a visual description of stereographic projection, please visit me at www.MathScienceHistory.com. For more information about my sponsor, Athletic Greens, visit www.athleticgreens.com/emerging 

Until next time, carpe diem!

All music by Lloyd Rodgers - No Copyright - No rights reserved