Entry 23

The light from a lamp when shown on a wall creates a positive and negative parabola that hovers just a couple of inches from the top and bottom of the lamp shade. In fact the light seems to come in layers there is a dark shadow near the ends of the shade where it is thickest, then there is a soft fill light which is the maximum amount of light that can penetrate the shade, and then there is the bright parabolas. Also the light in the parabolas varies in intensity, the edges of the parabolas are very bright and sharp but the centers are much softer.