Cross section (geometry) of Earth at right. Cross-sections are often used in anatomy to illustrate the inner structure of an organ, as shown at left. A cross-section of a tree trunk, as shown at left, reveals growth rings that can be used to find the age of the tree and the temporal properties of its environment. Cross section (geometry) In geometry and science, a cross section is the non-empty intersection of a solid body in three-dimensional space with a plane, or the analog in higher-dimensional spaces. Cutting an object into slices creates many parallel cross sections. The boundary of a cross section in
Papal Mass of the offices of the papal court previously required for the celebration of the papal Mass. Soon after his coronation, Paul VI ceased using the papal tiara. He discontinued the use of many traditional features of papal dress, including the papal slippers and pontifical gloves. However, he did carry a distinctive form of papal ferula, silver in colour, which Pope John Paul II also used. Pope Benedict XVI carried a golden ferula with a central image of the Lamb of God and without a figure of Christ crucified. On certain occasions, Pope John Paul II, and Benedict XVI wore the