Lesson: Raking Light
In this lesson, we explore the use of raking light and slight magnification to examine the texture of parchment and distinguish between its two distinct surfaces: the flesh side and the hair side. This examination technique helps to reveal the subtle textural differences between the surfaces, aiding in the identification of parchment characteristics important in conservation and historical analysis.
Objectives
- Understand the structural differences between the flesh side and the hair side of parchment.
- Learn how to effectively use raking light to highlight surface textures on parchment.
- Be able to visually inspect and differentiate between the hair and flesh sides of parchment using light and magnification techniques.
Materials:
- Raking light source (e.g., a blade of light)
- Parchment samples
- Camera
Lesson Plan:
1. Using Raking Light for Texture Examination:
Demonstrate how raking light helps in revealing surface textures on parchment.
Students will observe the differences between the smooth, uniform surface of the flesh side and the rough, follicle-marked hair side.
2. Visual Inspection of Parchment:
Explain how to use visual inspection techniques without the need for magnification. Emphasize texture, color, and the presence of hair follicle marks as key indicators.
Compare the two sides of parchment: identify smoothness on the flesh side versus the rougher texture of the hair side.
