The poster has depth and breadth in one place: it presents the mathematical definition, geometric proof, historical context, and real-world examples (from nature, architecture, and art) all together, which is rare in a school-level poster.
It is visually engaging. The golden spiral arc tying sections together, combined with the mix of diagrams, famous monuments, and nature, makes Phi feel “alive” rather than just a number.
It has historical richness. Including Euclid, Phidias, Pericles, and the Parthenon gives it cultural weight.
Published: August 15, 2025

Φ―the first letter of Phidias’ (d. 430 BC) name in Greek, Pericles’ (d. 429 BC) artistic director who helped him rebuild Athens–celebrates the geometric harmony shaped by Phidias, such as the Parthenon, in which the Golden Ratio (1:1.618..) made with Φ gives timeless beauty.

As in the Parthenon Taj Mahal too has adjoining Golden Rectangles with sides in the ratio 1:1.618… as does this poster. Joining the corners where these rectangles meet makes a Golden Spiral.