Further reading

Links and media

Further websites, films and books, most of them in German. Some addresses date from 2010 to 2015 and are no longer online. They are kept here as a record of who has worked on these subjects.

Websites

• Keplerstern – The Signature of the SpheresHartmut Warm

  Planetary motion patterns as star figures, in the tradition of the Pythagorean harmony of the spheres.

• The prime number crossPeter Plichta

  Numbers arranged in rings of 24, and Plichta’s reading of the number 24.

• Neutonus reformatusEd Dellian

  Translations of Newton’s original Latin writings. Dellian sees the fourfold proportion, a tetractys, as the key to Newton’s theory of motion.

• Mathematische BasteleienJürgen Köller

  An entertaining German reference on geometry and number theory.

• Primes, divisibility and the number 24

  Why p² − 1 is divisible by 24 for every prime above 3.

• Snow CrystalsKenneth Libbrecht, Caltech

  Photos and videos of ice crystals growing under laboratory conditions.

• Pythagoras Institute DresdenAndreas Beutel

  Harmonics, sacred geometry and the quality of numbers.

• Forum for hermetic philosophy

  Talks on mysticism, mythology, alchemy, Kabbalah and tarot.

• Archive of German philosophical texts

  Philosophical texts in full.

Films

• On geometry, harmonics and number as carriers of information

  A conversation with Andreas Beutel, head of the Pythagoras Institute in Dresden, on the quality of numbers, their relation to geometry and music, and how form enters the world.

• Die Code-Knacker (3sat, 2010)

  A two-part German documentary on the Riemann hypothesis, the distribution of primes, Euler’s link between primes and π, and the role of primes in physics.

• Harmonic foundations and the lambdoma

  A video series by Henny Jahn, organ builder and author of “Weltformel Lambdoma”, who uses lambdoma diagrams to explain musical and philosophical connections and invites viewers to draw them themselves.

Books

• Hermann Diels, Walther Kranz: Die Fragmente der Vorsokratiker
• Julian Havil: Gamma. Eulers Konstante, Primzahlstrände und die Riemannsche Vermutung, 2007
• Theo Reiser: Das Geheimnis der pythagoräischen Tetraktys, 1967
• Florian Mayr: Heilige Tetraktys. Herders metakritische Hermetik, 2006
• Giordano Bruno: De monade, numero et figura, 1591
• Emil Stejnar: Exerzitien für Freimaurer, Die vier Elemente
• Alfried Lehner: Die Esoterik der Freimaurer
• Hans-Georg Gadamer: Der Anfang der Philosophie
• Richard Buckminster Fuller: Synergetics, 1975
• Hartmut Warm: Die Signatur der Sphären
• Eliphas Lévi: Dogme et rituel de la haute magie, 1854–1856
• Geheime Figuren der Rosenkreuzer aus dem 16ten und 17ten Jahrhundert, Altona 1785