Comment:
L: Hölzel's "Dynamic Circle Rhythms" (1930) is one of the artist's late works. After painting moody, traditional canvasses - like the ca. 1901 "Dachauer Moos" set against the AstroPic "Arches of Spring" -- he adopted a colourful abstract style around 1905, years before Kandinsky.
The NY dada Baroness Else von Freytag-Loringhoven (FrL) was one of his pupils in Dachau in 1900.
See the Dachau Registration Entry for "Else Ploetz" in May 1900
(Courtesy, Dr. Elisabeth Boser, July 1997). -- See also FrL Collection at the UMA)

R: The Holographic Principle stems from Strimg Theory & Quantum Mechanics. It iis applied to making holograms like the one shown here.
Those are photographic recordings of three-dimensional objects with light field- rather than optical lenses. -- (Wikipedia)