16 great circles.
<video width=”548” height=”440” name=”Sixteen Planes” controls loop muted poster=(https://img.youtube.com/vi/YOUTUBE-6ezIM2miCyA/0.jpg) > <source src=https://youtu.be/6ezIM2miCyA>
16 great circles.
<video width=”548” height=”440” name=”Sixteen Planes” controls loop muted poster=(https://img.youtube.com/vi/YOUTUBE-6ezIM2miCyA/0.jpg) > <source src=https://youtu.be/6ezIM2miCyA>