The motivation behind Keplers study of the heavens was a longing for divine beauty. He wanted to understand the music of the spheres, by studying the planetary motions. He assumed that Nature must be beautiful, and that this beauty could be unveiled through the eyes of the mind, though mathematics. He discovered that the planets moved in ellipses, and that for a given time, the segment swept out by the planets had a constant area. The velocity and the distance from the sun varied, but the area was constant. This was actually the first discovery of a conservation law, and even if Keplers discovery is old, also modern physics is formulated in terms of conservation laws. Kepler saw this as evidence for a divine harmony. Newton later developed Keplers discoveries, and found that this celestial harmony was applicable also here on Earth.

The spirit of Keplers research reminded me why I got interested in physics as a teenager. I like, and I have always liked divine harmony. For several years I was in love with Mozarts music, that is a manifestation of the same divine harmony. For instance this part of the clarinet concerto.

I also made an attempt to portrait this beauty myself, through mathematics and music. Unfortunately, my creativity stopped there, and I couldn’t follow this piece of art with similar creations.