Voice of Fire with striped T-shirts and ties that mimicked the painting. The 1996 book "Voices of Fire: Art Rage, Power, and the State", edited by Bruce Barber, Serge Guilbaut and John O'Brian, discusses the issues around the purchase of the painting. Commissioned for Expo 67, the International and Universal Exposition that took place in Montreal during Canada's 1967 centennial, "Voice of Fire" was part of the US pavilion organized by art critic and historian Alan Solomon. The exhibition, "American Painting Now" featured the work of twenty-two artists installed in the US Pavilion, a geodesic dome designed by engineer Buckminster Fuller. Explicitly oriented
Solving the geodesic equations curve γ("s") in formula_1 and formula_5 are the Christoffel symbols. The Christoffel symbols are functions of the metric and are given by: where the comma indicates a partial derivative with respect to the coordinates: As the manifold has dimension formula_8, the geodesic equations are a system of formula_8 ordinary differential equations for the formula_8 coordinate variables. Thus, allied with initial conditions, the system can, according to the Picard–Lindelöf theorem, be solved. One can also use a Lagrangian approach to the problem: defining and applying the Euler–Lagrange equation. As the laws of physics can be written in any coordinate system, it