Out of Africa Via Mercury
Part II
©Lorena Loo
Part II
©Lorena Loo
In the final two diagrams below I illustrated the planetary relationships as they would correspond on Leonardo's Vitruvian Man both by itself and with respect to a golden triangle.
And so ends my tale of three planets. Yes I could have titled this piece A Tale of Three Planets. But it might not have caught your attention as much as Out of Africa Via Mercury.
Text and images (unless otherwise indicated in the credits) are copyrighted
© by Lorena Loo
In the instances where images in the public domain have been modified as in the case of geometrizing them, the modified images are no longer public domain but the copyright of the author who made the modifications. Here that means me, Lorena Loo. That is by copyright law.
© by Lorena Loo
In the instances where images in the public domain have been modified as in the case of geometrizing them, the modified images are no longer public domain but the copyright of the author who made the modifications. Here that means me, Lorena Loo. That is by copyright law.
Author Notes: Data for polar and equatorial radii of the Earth, Mercuy and Venus used in my calculations were drawn from NASA's Planetary Fact Sheets available at http://nssdc.gsfc.nasa.gov/planetary/planetfact.html
This part is for those who need or want to know technical details on how I calculated the latitudes cited in this article. First I calculated the geocentric latitude using the equatorial radius of the Earth. I then converted geocentric values to geodetic (same as geographic) latitudes. It is the latter values which I have given in the article.
Images:
World Map: Perry-Castañeda Library Map Collection, University of Texas at Austin Libraries http://www.lib.utexas.edu/maps/world_maps/world_rel_803005AI_2003.jpg
Planet Mercury: Mariner's Mercury; Mariner 10, Astrogeology Team, U.S. Geological Survey http://antwrp.gsfc.nasa.gov/apod/ap011124.html
Planet Venus: Hemispheric View of Venus Centered at the North Pole; U.S. Geological Survey http://photojournal.jpl.nasa.gov/catalog/PIA00007
Planet Earth: Earth - Apollo 17; NASA http://nssdc.gsfc.nasa.gov/imgcat/html/object_page/a17_h_148_22727.html
This part is for those who need or want to know technical details on how I calculated the latitudes cited in this article. First I calculated the geocentric latitude using the equatorial radius of the Earth. I then converted geocentric values to geodetic (same as geographic) latitudes. It is the latter values which I have given in the article.
Images:
World Map: Perry-Castañeda Library Map Collection, University of Texas at Austin Libraries http://www.lib.utexas.edu/maps/world_maps/world_rel_803005AI_2003.jpg
Planet Mercury: Mariner's Mercury; Mariner 10, Astrogeology Team, U.S. Geological Survey http://antwrp.gsfc.nasa.gov/apod/ap011124.html
Planet Venus: Hemispheric View of Venus Centered at the North Pole; U.S. Geological Survey http://photojournal.jpl.nasa.gov/catalog/PIA00007
Planet Earth: Earth - Apollo 17; NASA http://nssdc.gsfc.nasa.gov/imgcat/html/object_page/a17_h_148_22727.html
© Copyright Lorena Loo